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ZSI_Reconnect_China/PATSTAT/CPC_data/CPCSchemeXML202302/cpc-scheme-F24H.xml

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<?xml version="1.0" encoding="UTF-8"?>
<class-scheme publication-date="2023-02-01" scheme-type="cpc" publication-type="official">
<classification-item breakdown-code="false" not-allocatable="true" level="5" additional-only="false" sort-key="F24H" definition-exists="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL </text><reference><text>steam generation <class-ref scheme="cpc">F22</class-ref></text></reference></title-part></class-title><notes-and-warnings date-revised="2013-01-01"><note type="note"><note-paragraph>The distinguishing feature of the air heaters covered by this subclass is that the heat is predominantly released to the air by convection, mostly by forced circulation of the air. The domestic stoves or ranges covered by subclasses <class-ref scheme="cpc">F24B</class-ref>, <class-ref scheme="cpc">F24C</class-ref> may also be fired or electric air heaters but they release their heat to a considerable extent by radiation and only to some extent by natural convection.</note-paragraph><note-paragraph>In this subclass, the following terms are used with the meanings indicated: <subnote type="bullet"><note-paragraph>&quot;water&quot; includes other liquids and means always the liquid to be heated;</note-paragraph><note-paragraph>&quot;air&quot; includes other gases or gas mixtures and means always the gas to be heated;</note-paragraph><note-paragraph> &quot;furnace tubes&quot; means tubes inside the heater wherein combustion is performed;</note-paragraph><note-paragraph>&quot;fire tubes&quot; means tubes inside the heater through which flue-gases flow from a combustion chamber located outside the tubes; </note-paragraph><note-paragraph>&quot;heater&quot; means apparatus including both heat generating means and means for transferring the generated heat to water or air.</note-paragraph></subnote></note-paragraph><note-paragraph>All storage heaters are classified in group <class-ref scheme="cpc">F24H7/00</class-ref>.</note-paragraph></note></notes-and-warnings>
<classification-item breakdown-code="false" not-allocatable="true" level="6" additional-only="false" sort-key="F24H1/00" date-revised="2013-01-01" status="published"><classification-symbol>F24H1/00</classification-symbol>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="F24H1/00" definition-exists="true" ipc-concordant="F24H1/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H1/00</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters </text><reference><text>steam boilers <class-ref scheme="cpc">F22B</class-ref></text></reference></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F24H1/0009" definition-exists="false" ipc-concordant="F24H1/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H1/0009</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>of the reduced pressure or vacuum steam type</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F24H1/0018" definition-exists="false" ipc-concordant="F24H1/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H1/0018</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>using electric energy supply</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F24H1/0027" definition-exists="false" ipc-concordant="F24H1/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H1/0027</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>using fluid fuel</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F24H1/0036" definition-exists="false" ipc-concordant="F24H1/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H1/0036</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>of the sealed type</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F24H1/0045" definition-exists="false" ipc-concordant="F24H1/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H1/0045</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with catalytic combustion</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F24H1/0054" definition-exists="false" ipc-concordant="F24H1/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H1/0054</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Gas- or oil-fired immersion heaters for open containers or ponds</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F24H1/0063" definition-exists="false" ipc-concordant="F24H1/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H1/0063</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>using solid fuel</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F24H1/0072" definition-exists="false" ipc-concordant="F24H1/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H1/0072</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Special adaptations</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F24H1/009" definition-exists="false" ipc-concordant="F24H1/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H1/009</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>for vehicle systems</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F24H1/06" definition-exists="false" ipc-concordant="F24H1/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H1/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Portable or mobile, e.g. collapsible</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F24H1/08" definition-exists="false" ipc-concordant="F24H1/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H1/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Packaged or self-contained boilers, i.e. water heaters with control devices and pump in a single unit</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F24H1/10" definition-exists="true" ipc-concordant="F24H1/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H1/10</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F24H1/101" definition-exists="false" ipc-concordant="F24H1/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H1/101</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>using electric energy supply</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F24H1/102" definition-exists="false" ipc-concordant="F24H1/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H1/102</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with resistance</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F24H1/103" definition-exists="false" ipc-concordant="F24H1/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H1/103</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with bare resistances in direct contact with the fluid</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F24H1/105" definition-exists="false" ipc-concordant="F24H1/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H1/105</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>formed by the tube through which the fluid flows</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F24H1/106" definition-exists="false" ipc-concordant="F24H1/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H1/106</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with electrodes</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F24H1/107" definition-exists="false" ipc-concordant="F24H1/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H1/107</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>using fluid fuel</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F24H1/108" definition-exists="false" ipc-concordant="F24H1/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H1/108</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>using solid fuel</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F24H1/12" definition-exists="false" ipc-concordant="F24H1/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H1/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>in which the water is kept separate from the heating medium</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F24H1/121" definition-exists="false" ipc-concordant="F24H1/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H1/121</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>using electric energy supply</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F24H1/122" definition-exists="false" ipc-concordant="F24H1/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H1/122</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>combined with storage tank</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F24H1/124" definition-exists="false" ipc-concordant="F24H1/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H1/124</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>using fluid fuel</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F24H1/125" definition-exists="false" ipc-concordant="F24H1/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H1/125</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>combined with storage tank</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F24H1/127" definition-exists="false" ipc-concordant="F24H1/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H1/127</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>using solid fuel</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F24H1/128" definition-exists="false" ipc-concordant="F24H1/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H1/128</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>combined with storage tank</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F24H1/14" definition-exists="false" ipc-concordant="F24H1/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H1/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by tubes, e.g. bent in serpentine form</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F24H1/142" definition-exists="false" ipc-concordant="F24H1/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H1/142</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>using electric energy supply</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F24H1/145" definition-exists="false" ipc-concordant="F24H1/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H1/145</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>using fluid fuel</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F24H1/147" definition-exists="false" ipc-concordant="F24H1/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H1/147</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>using solid fuel</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F24H1/16" definition-exists="false" ipc-concordant="F24H1/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H1/16</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>helically or spirally coiled</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="F24H1/162" definition-exists="false" ipc-concordant="F24H1/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H1/162</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>using electrical energy supply</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="F24H1/165" definition-exists="false" ipc-concordant="F24H1/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H1/165</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>using fluid fuel</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="F24H1/167" definition-exists="false" ipc-concordant="F24H1/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H1/167</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>using solid fuel</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F24H1/18" definition-exists="true" ipc-concordant="F24H1/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H1/18</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>Water-storage heaters</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F24H1/181" definition-exists="true" ipc-concordant="F24H1/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H1/181</classification-symbol><class-title date-revised="2022-01-01"><title-part><CPC-specific-text><text>Construction of the tank</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F24H1/182" definition-exists="true" ipc-concordant="F24H1/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H1/182</classification-symbol><class-title date-revised="2022-01-01"><title-part><CPC-specific-text><text>Insulation</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F24H1/183" definition-exists="true" ipc-concordant="F24H1/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H1/183</classification-symbol><class-title date-revised="2022-01-01"><title-part><CPC-specific-text><text>Inner linings</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F24H1/185" definition-exists="false" ipc-concordant="F24H1/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H1/185</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>using electric energy supply </text><reference><text><class-ref scheme="cpc">F24H1/201</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F24H1/186" definition-exists="false" ipc-concordant="F24H1/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H1/186</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>using fluid fuel</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F24H1/187" definition-exists="false" ipc-concordant="F24H1/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H1/187</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>using solid fuel</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F24H1/188" definition-exists="false" ipc-concordant="F24H1/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H1/188</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with means for compensating water expansion</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F24H1/20" definition-exists="false" ipc-concordant="F24H1/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H1/20</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with immersed heating elements, e.g. electric elements or furnace tubes</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F24H1/201" definition-exists="false" ipc-concordant="F24H1/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H1/201</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>using electric energy supply</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F24H1/202" definition-exists="false" ipc-concordant="F24H1/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H1/202</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with resistances</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F24H1/203" definition-exists="false" ipc-concordant="F24H1/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H1/203</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with electrodes</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F24H1/205" definition-exists="false" ipc-concordant="F24H1/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H1/205</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with furnace tubes</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F24H1/206" definition-exists="false" ipc-concordant="F24H1/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H1/206</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with submerged combustion chamber</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F24H1/207" definition-exists="false" ipc-concordant="F24H1/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H1/207</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with water tubes</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F24H1/208" definition-exists="false" ipc-concordant="F24H1/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H1/208</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with tubes filled with heat transfer fluid</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F24H1/22" definition-exists="true" ipc-concordant="F24H1/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H1/22</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F24H1/225" definition-exists="false" ipc-concordant="F24H1/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H1/225</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>electrical central heating boilers</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F24H1/24" definition-exists="true" ipc-concordant="F24H1/24" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H1/24</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>with water mantle surrounding the combustion chamber or chambers</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F24H1/26" definition-exists="false" ipc-concordant="F24H1/26" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H1/26</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the water mantle forming an integral body</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F24H1/263" definition-exists="false" ipc-concordant="F24H1/26" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H1/263</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with a dry-wall combustion chamber</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F24H1/28" definition-exists="false" ipc-concordant="F24H1/28" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H1/28</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>including one or more furnace or fire tubes</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="F24H1/282" definition-exists="false" ipc-concordant="F24H1/28" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H1/282</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with flue gas passages built-up by coaxial water mantles</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="F24H1/285" definition-exists="false" ipc-concordant="F24H1/28" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H1/285</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with the fire tubes arranged alongside the combustion chamber</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="F24H1/287" definition-exists="false" ipc-concordant="F24H1/28" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H1/287</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with the fire tubes arranged in line with the combustion chamber</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F24H1/30" definition-exists="false" ipc-concordant="F24H1/30" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H1/30</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the water mantle being built up from sections</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F24H1/32" definition-exists="false" ipc-concordant="F24H1/32" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H1/32</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with vertical sections arranged side by side</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F24H1/34" definition-exists="true" ipc-concordant="F24H1/34" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H1/34</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>with water chamber arranged adjacent to the combustion chamber or chambers, e.g. above or at side</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F24H1/36" definition-exists="false" ipc-concordant="F24H1/36" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H1/36</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the water chamber including one or more fire tubes</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F24H1/38" definition-exists="true" ipc-concordant="F24H1/38" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H1/38</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>with water contained in separate elements, e.g. radiator-type element</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F24H1/40" definition-exists="true" ipc-concordant="F24H1/40" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H1/40</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>with water tube or tubes</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F24H1/403" definition-exists="false" ipc-concordant="F24H1/40" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H1/403</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the water tubes being arranged in one or more circles around the burner</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F24H1/406" definition-exists="false" ipc-concordant="F24H1/40" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H1/406</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the tubes forming a membrane wall</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F24H1/41" definition-exists="false" ipc-concordant="F24H1/41" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H1/41</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>in serpentine form</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F24H1/43" definition-exists="false" ipc-concordant="F24H1/43" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H1/43</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>helically or spirally coiled</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F24H1/44" definition-exists="false" ipc-concordant="F24H1/44" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H1/44</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>with combinations of two or more of the types covered by groups <class-ref scheme="cpc">F24H1/24</class-ref> -&#160;<class-ref scheme="cpc">F24H1/40</class-ref>&#160; </text><CPC-specific-text><text>, e.g. boilers having a combination of features covered by&#160;<class-ref scheme="cpc">F24H1/24</class-ref>&#160;-&#160;<class-ref scheme="cpc">F24H1/40</class-ref></text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F24H1/445" definition-exists="false" ipc-concordant="F24H1/44" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H1/445</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with integrated flue gas condenser</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F24H1/46" definition-exists="false" ipc-concordant="F24H1/46" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H1/46</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Water heaters having plural combustion chambers</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F24H1/48" definition-exists="true" ipc-concordant="F24H1/48" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H1/48</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Water heaters for central heating incorporating heaters for domestic water</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F24H1/50" definition-exists="false" ipc-concordant="F24H1/50" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H1/50</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>incorporating domestic water tanks</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F24H1/52" definition-exists="false" ipc-concordant="F24H1/52" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H1/52</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>incorporating heat exchangers for domestic water </text><reference><text><class-ref scheme="cpc">F24H1/50</class-ref> takes precedence</text></reference></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F24H1/523" definition-exists="false" ipc-concordant="F24H1/52" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H1/523</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Heat exchangers for sanitary water directly heated by the burner</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F24H1/526" definition-exists="false" ipc-concordant="F24H1/52" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H1/526</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Pipes in pipe heat exchangers for sanitary water</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F24H1/54" definition-exists="false" ipc-concordant="F24H1/54" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H1/54</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>Water heaters for bathtubs or pools</text></title-part><title-part><text>Water heaters for reheating the water in bathtubs or pools</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="F24H3/00" definition-exists="true" ipc-concordant="F24H3/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H3/00</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>Air heaters</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F24H3/002" definition-exists="false" ipc-concordant="F24H3/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H3/002</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>using electric energy supply</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F24H3/004" definition-exists="false" ipc-concordant="F24H3/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H3/004</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with a closed circuit for a heat transfer liquid</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F24H3/006" definition-exists="false" ipc-concordant="F24H3/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H3/006</classification-symbol><class-title date-revised="2022-01-01"><title-part><CPC-specific-text><text>using fluid fuel</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F24H3/008" definition-exists="false" ipc-concordant="F24H3/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H3/008</classification-symbol><class-title date-revised="2022-01-01"><title-part><CPC-specific-text><text>using solid fuel</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F24H3/02" definition-exists="true" ipc-concordant="F24H3/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H3/02</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>with forced circulation</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F24H3/022" definition-exists="false" ipc-concordant="F24H3/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H3/022</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>using electric energy supply</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F24H3/025" definition-exists="false" ipc-concordant="F24H3/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H3/025</classification-symbol><class-title date-revised="2022-01-01"><title-part><CPC-specific-text><text>using fluid fuel</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F24H3/027" definition-exists="false" ipc-concordant="F24H3/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H3/027</classification-symbol><class-title date-revised="2022-01-01"><title-part><CPC-specific-text><text>using solid fuel</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F24H3/04" definition-exists="false" ipc-concordant="F24H3/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H3/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the air being in direct contact with the heating medium, e.g. electric heating element</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F24H3/0405" definition-exists="false" ipc-concordant="F24H3/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H3/0405</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>using electric energy supply, e.g. the heating medium being a resistive element; Heating by direct contact, i.e. with resistive elements, electrodes and fins being bonded together without additional element in-between </text><reference><text><class-ref scheme="cpc">F24H3/06</class-ref>, <class-ref scheme="cpc">F24H3/08</class-ref>, <class-ref scheme="cpc">F24H3/10</class-ref> take precedence</text></reference></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F24H3/0411" definition-exists="false" ipc-concordant="F24H3/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H3/0411</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>for domestic or space-heating systems</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="F24H3/0417" definition-exists="false" ipc-concordant="F24H3/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H3/0417</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>portable or mobile</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F24H3/0423" definition-exists="false" ipc-concordant="F24H3/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H3/0423</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>hand-held air guns</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F24H3/0429" definition-exists="false" ipc-concordant="F24H3/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H3/0429</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>For vehicles</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="F24H3/0435" definition-exists="false" ipc-concordant="F24H3/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H3/0435</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Structures comprising heat spreading elements in the form of fins</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="F24H3/0441" definition-exists="false" ipc-concordant="F24H3/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H3/0441</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Interfaces between the electrodes of a resistive heating element and the power supply means</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="F24H3/0447" definition-exists="false" ipc-concordant="F24H3/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H3/0447</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Forms of the electrode terminals, e.g. tongues or clips</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="F24H3/0452" definition-exists="false" ipc-concordant="F24H3/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H3/0452</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Frame constructions</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="F24H3/0458" definition-exists="false" ipc-concordant="F24H3/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H3/0458</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>One-piece frames</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="F24H3/0464" definition-exists="false" ipc-concordant="F24H3/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H3/0464</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Two-piece frames, e.g. two-shell frames, also including frames as a central body with two covers</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="F24H3/047" definition-exists="false" ipc-concordant="F24H3/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H3/047</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Multiple-piece frames assembled on their four or more edges</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="F24H3/0476" definition-exists="false" ipc-concordant="F24H3/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H3/0476</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Means for putting the electric heaters in the frame under strain, e.g. with springs</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="F24H3/0482" definition-exists="false" ipc-concordant="F24H3/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H3/0482</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Frames with integrated fan</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F24H3/0488" definition-exists="false" ipc-concordant="F24H3/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H3/0488</classification-symbol><class-title date-revised="2022-01-01"><title-part><CPC-specific-text><text>using fluid fuel</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F24H3/0494" definition-exists="false" ipc-concordant="F24H3/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H3/0494</classification-symbol><class-title date-revised="2022-01-01"><title-part><CPC-specific-text><text>using solid fuel</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F24H3/06" definition-exists="false" ipc-concordant="F24H3/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H3/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the air being kept separate from the heating medium, e.g. using forced circulation of air over radiators</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F24H3/062" definition-exists="false" ipc-concordant="F24H3/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H3/062</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>using electric energy supply; the heating medium being the resistive element </text><reference><text><class-ref scheme="cpc">F24H3/08</class-ref>, <class-ref scheme="cpc">F24H3/10</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F24H3/065" definition-exists="false" ipc-concordant="F24H3/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H3/065</classification-symbol><class-title date-revised="2022-01-01"><title-part><CPC-specific-text><text>using fluid fuel</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F24H3/067" definition-exists="false" ipc-concordant="F24H3/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H3/067</classification-symbol><class-title date-revised="2022-01-01"><title-part><CPC-specific-text><text>using solid fuel</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F24H3/08" definition-exists="false" ipc-concordant="F24H3/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H3/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by tubes</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F24H3/081" definition-exists="false" ipc-concordant="F24H3/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H3/081</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>using electric energy supply</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="F24H3/082" definition-exists="false" ipc-concordant="F24H3/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H3/082</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>The tubes being an electrical isolator containing the heater</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="F24H3/084" definition-exists="false" ipc-concordant="F24H3/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H3/084</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>The tubes being an electrode for the heater</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="F24H3/085" definition-exists="false" ipc-concordant="F24H3/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H3/085</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>The tubes containing an electrically heated intermediate fluid, e.g. water</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F24H3/087" definition-exists="false" ipc-concordant="F24H3/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H3/087</classification-symbol><class-title date-revised="2022-01-01"><title-part><CPC-specific-text><text>using fluid fuel</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F24H3/088" definition-exists="false" ipc-concordant="F24H3/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H3/088</classification-symbol><class-title date-revised="2022-01-01"><title-part><CPC-specific-text><text>using solid fuel</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F24H3/10" definition-exists="false" ipc-concordant="F24H3/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H3/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by plates</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F24H3/102" definition-exists="false" ipc-concordant="F24H3/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H3/102</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>using electric energy supply</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F24H3/105" definition-exists="false" ipc-concordant="F24H3/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H3/105</classification-symbol><class-title date-revised="2022-01-01"><title-part><CPC-specific-text><text>using fluid fuel</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F24H3/107" definition-exists="false" ipc-concordant="F24H3/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H3/107</classification-symbol><class-title date-revised="2022-01-01"><title-part><CPC-specific-text><text>using solid fuel</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F24H3/12" definition-exists="false" ipc-concordant="F24H3/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H3/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with additional heating arrangements</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="F24H4/00" definition-exists="true" ipc-concordant="F24H4/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H4/00</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>Fluid heaters characterised by the use of heat pumps</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F24H4/02" definition-exists="false" ipc-concordant="F24H4/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H4/02</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>Water heaters</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F24H4/04" definition-exists="false" ipc-concordant="F24H4/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H4/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Storage heaters</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F24H4/06" definition-exists="false" ipc-concordant="F24H4/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H4/06</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>Air heaters</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="F24H6/00" definition-exists="true" ipc-concordant="F24H6/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H6/00</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>Combined water and air heaters</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="F24H7/00" definition-exists="true" ipc-concordant="F24H7/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H7/00</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>Storage heaters, i.e. heaters in which the energy is stored as heat in masses for subsequent release</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F24H7/002" definition-exists="false" ipc-concordant="F24H7/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H7/002</classification-symbol><class-title date-revised="2022-01-01"><title-part><CPC-specific-text><text>using electrical energy supply</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F24H7/005" definition-exists="false" ipc-concordant="F24H7/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H7/005</classification-symbol><class-title date-revised="2022-01-01"><title-part><CPC-specific-text><text>using fluid fuel</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F24H7/007" definition-exists="false" ipc-concordant="F24H7/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H7/007</classification-symbol><class-title date-revised="2022-01-01"><title-part><CPC-specific-text><text>using solid fuel</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F24H7/02" definition-exists="false" ipc-concordant="F24H7/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H7/02</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>the released heat being conveyed to a transfer fluid</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F24H7/0208" definition-exists="false" ipc-concordant="F24H7/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H7/0208</classification-symbol><class-title date-revised="2022-01-01"><title-part><CPC-specific-text><text>using electrical energy supply</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F24H7/0216" definition-exists="false" ipc-concordant="F24H7/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H7/0216</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the transfer fluid being air</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F24H7/0225" definition-exists="false" ipc-concordant="F24H7/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H7/0225</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with supplementary heating means</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F24H7/0233" definition-exists="false" ipc-concordant="F24H7/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H7/0233</classification-symbol><class-title date-revised="2022-01-01"><title-part><CPC-specific-text><text>the transfer fluid being water</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F24H7/0241" definition-exists="false" ipc-concordant="F24H7/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H7/0241</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with supplementary heating means</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F24H7/025" definition-exists="false" ipc-concordant="F24H7/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H7/025</classification-symbol><class-title date-revised="2022-01-01"><title-part><CPC-specific-text><text>using fluid fuel</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F24H7/0258" definition-exists="false" ipc-concordant="F24H7/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H7/0258</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the transfer fluid being air</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F24H7/0266" definition-exists="false" ipc-concordant="F24H7/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H7/0266</classification-symbol><class-title date-revised="2022-01-01"><title-part><CPC-specific-text><text>the transfer fluid being water</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F24H7/0275" definition-exists="false" ipc-concordant="F24H7/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H7/0275</classification-symbol><class-title date-revised="2022-01-01"><title-part><CPC-specific-text><text>using solid fuel</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F24H7/0283" definition-exists="false" ipc-concordant="F24H7/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H7/0283</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the transfer fluid being air</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F24H7/0291" definition-exists="false" ipc-concordant="F24H7/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H7/0291</classification-symbol><class-title date-revised="2022-01-01"><title-part><CPC-specific-text><text>the transfer fluid being water</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F24H7/04" definition-exists="false" ipc-concordant="F24H7/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H7/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with forced circulation of the transfer fluid</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F24H7/0408" definition-exists="false" ipc-concordant="F24H7/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H7/0408</classification-symbol><class-title date-revised="2022-01-01"><title-part><CPC-specific-text><text>using electrical energy supply</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F24H7/0416" definition-exists="false" ipc-concordant="F24H7/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H7/0416</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the transfer fluid being air</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="F24H7/0425" definition-exists="false" ipc-concordant="F24H7/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H7/0425</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with supplementary heating means</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F24H7/0433" definition-exists="false" ipc-concordant="F24H7/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H7/0433</classification-symbol><class-title date-revised="2022-01-01"><title-part><CPC-specific-text><text>the transfer medium being water</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="F24H7/0441" definition-exists="false" ipc-concordant="F24H7/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H7/0441</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with supplementary heating means</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F24H7/045" definition-exists="false" ipc-concordant="F24H7/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H7/045</classification-symbol><class-title date-revised="2022-01-01"><title-part><CPC-specific-text><text>using fluid fuel</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F24H7/0458" definition-exists="false" ipc-concordant="F24H7/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H7/0458</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the transfer fluid being air</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F24H7/0466" definition-exists="false" ipc-concordant="F24H7/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H7/0466</classification-symbol><class-title date-revised="2022-01-01"><title-part><CPC-specific-text><text>the transfer fluid being water</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F24H7/0475" definition-exists="false" ipc-concordant="F24H7/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H7/0475</classification-symbol><class-title date-revised="2022-01-01"><title-part><CPC-specific-text><text>using solid fuel</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F24H7/0483" definition-exists="false" ipc-concordant="F24H7/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H7/0483</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the transfer fluid being air</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F24H7/0491" definition-exists="false" ipc-concordant="F24H7/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H7/0491</classification-symbol><class-title date-revised="2022-01-01"><title-part><CPC-specific-text><text>the transfer fluid being water</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F24H7/06" definition-exists="false" ipc-concordant="F24H7/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H7/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the released heat being radiated</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F24H7/062" definition-exists="false" ipc-concordant="F24H7/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H7/062</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with electrical energy supply</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F24H7/065" definition-exists="false" ipc-concordant="F24H7/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H7/065</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with fluid fuel</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F24H7/067" definition-exists="false" ipc-concordant="F24H7/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H7/067</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with solid fuel</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="F24H8/00" definition-exists="true" ipc-concordant="F24H8/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H8/00</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>Fluid heaters characterised by means for extracting latent heat from flue gases by means of condensation</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F24H8/003" definition-exists="false" ipc-concordant="F24H8/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H8/003</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>having means for moistening the combustion air with condensate from the combustion gases</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F24H8/006" definition-exists="false" ipc-concordant="F24H8/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H8/006</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Means for removing condensate from the heater</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="F24H9/00" definition-exists="true" ipc-concordant="F24H9/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H9/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Details</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F24H9/0005" definition-exists="false" ipc-concordant="F24H9/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H9/0005</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>for water heaters</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F24H9/001" definition-exists="false" ipc-concordant="F24H9/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H9/001</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Guiding means</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F24H9/0015" definition-exists="false" ipc-concordant="F24H9/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H9/0015</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>in water channels</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F24H9/0021" definition-exists="false" ipc-concordant="F24H9/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H9/0021</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Sleeves surrounding heating elements or heating pipes, e.g. pipes filled with heat transfer fluid, for guiding heated liquid</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F24H9/0026" definition-exists="false" ipc-concordant="F24H9/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H9/0026</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>in combustion gas channels</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F24H9/0031" definition-exists="false" ipc-concordant="F24H9/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H9/0031</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with means for changing or adapting the path of the flue gas</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F24H9/0036" definition-exists="false" ipc-concordant="F24H9/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H9/0036</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Dispositions against condensation of combustion products</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F24H9/0042" definition-exists="false" ipc-concordant="F24H9/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H9/0042</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Cleaning arrangements</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F24H9/0052" definition-exists="false" ipc-concordant="F24H9/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H9/0052</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>for air heaters</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F24H9/0057" definition-exists="false" ipc-concordant="F24H9/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H9/0057</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Guiding means</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F24H9/0063" definition-exists="false" ipc-concordant="F24H9/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H9/0063</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>in air channels</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F24H9/0068" definition-exists="false" ipc-concordant="F24H9/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H9/0068</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>in combustion gas channels</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F24H9/0073" definition-exists="false" ipc-concordant="F24H9/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H9/0073</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Arrangement or mounting of means for forcing the circulation of air</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F24H9/0078" definition-exists="false" ipc-concordant="F24H9/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H9/0078</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>for storage heaters</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F24H9/0084" definition-exists="false" ipc-concordant="F24H9/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H9/0084</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Combustion air preheating</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F24H9/0089" definition-exists="false" ipc-concordant="F24H9/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H9/0089</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>by double wall boiler mantle</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F24H9/0094" definition-exists="false" ipc-concordant="F24H9/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H9/0094</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>having means for transporting the boiler</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F24H9/02" definition-exists="false" ipc-concordant="F24H9/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H9/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Casings</text></title-part><title-part><text>Cover lids</text></title-part><title-part><text>Ornamental panels</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F24H9/06" definition-exists="false" ipc-concordant="F24H9/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H9/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Arrangement of mountings or supports </text><CPC-specific-text><text>for heaters, e.g. boilers, other than space heating radiators </text><reference><text>space heating radiators <class-ref scheme="cpc">F24D19/02</class-ref></text></reference></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F24H9/12" definition-exists="true" ipc-concordant="F24H9/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H9/12</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>Arrangements for connecting heaters to circulation pipes</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F24H9/13" definition-exists="false" ipc-concordant="F24H9/13" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H9/13</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>for water heaters</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F24H9/133" definition-exists="false" ipc-concordant="F24H9/13" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H9/133</classification-symbol><class-title date-revised="2022-01-01"><title-part><CPC-specific-text><text>Storage heaters</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F24H9/136" definition-exists="false" ipc-concordant="F24H9/13" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H9/136</classification-symbol><class-title date-revised="2022-01-01"><title-part><CPC-specific-text><text>Arrangement of inlet valves used therewith</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F24H9/139" definition-exists="false" ipc-concordant="F24H9/13" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H9/139</classification-symbol><class-title date-revised="2022-01-01"><title-part><CPC-specific-text><text>Continuous flow heaters</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F24H9/14" definition-exists="true" ipc-concordant="F24H9/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H9/14</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>Arrangements for connecting different sections, e.g. in water heaters&#160; </text><reference><text>arrangements for connecting heaters to circulation pipes <class-ref scheme="cpc">F24H9/12</class-ref></text></reference></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F24H9/142" definition-exists="false" ipc-concordant="F24H9/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H9/142</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Connecting hydraulic components</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F24H9/144" definition-exists="false" ipc-concordant="F24H9/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H9/144</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Valve seats, piping and heat exchanger connections integrated into a one-piece hydraulic unit</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F24H9/146" definition-exists="false" ipc-concordant="F24H9/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H9/146</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Connecting elements of a heat exchanger</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F24H9/148" definition-exists="false" ipc-concordant="F24H9/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H9/148</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Arrangements of boiler components on a frame or within a casing to build the fluid heater, e.g. boiler</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F24H9/16" definition-exists="true" ipc-concordant="F24H9/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H9/16</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>Arrangements for water drainage&#160;</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F24H9/17" definition-exists="false" ipc-concordant="F24H9/17" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H9/17</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>Means for retaining water leaked from heaters</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F24H9/18" definition-exists="true" ipc-concordant="F24H9/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H9/18</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>Arrangement or mounting of grates or heating means</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F24H9/1809" definition-exists="false" ipc-concordant="F24H9/1809" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H9/1809</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>for water heaters</text></title-part></class-title><notes-and-warnings><note type="warning"><note-paragraph warning-type="reclass-source">Group <class-ref scheme="cpc">F24H9/1809</class-ref> is impacted by reclassification into group <class-ref scheme="cpc">F24H9/1832</class-ref>.<br/>Groups <class-ref scheme="cpc">F24H9/1809</class-ref> and <class-ref scheme="cpc">F24H9/1832</class-ref> should be considered in order to perform a complete search.</note-paragraph></note></notes-and-warnings>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F24H9/1818" definition-exists="false" ipc-concordant="F24H9/1818" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H9/1818</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>Arrangement or mounting of electric heating means</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F24H9/1827" definition-exists="false" ipc-concordant="F24H9/1818" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H9/1827</classification-symbol><class-title date-revised="2022-01-01"><title-part><CPC-specific-text><text>Positive temperature coefficient [PTC] resistor</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F24H9/1832" definition-exists="false" ipc-concordant="F24H9/1832" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H9/1832</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>Arrangement or mounting of combustion heating means, e.g. grates or burners</text></title-part></class-title><notes-and-warnings><note type="warning"><note-paragraph warning-type="reclass-destination">Group <class-ref scheme="cpc">F24H9/1832</class-ref> is incomplete pending reclassification of documents from group <class-ref scheme="cpc">F24H9/1809</class-ref>.<br/>Groups <class-ref scheme="cpc">F24H9/1809</class-ref> and <class-ref scheme="cpc">F24H9/1832</class-ref> should be considered in order to perform a complete search.</note-paragraph></note></notes-and-warnings>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F24H9/1836" definition-exists="false" ipc-concordant="F24H9/1836" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H9/1836</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>using fluid fuel</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F24H9/1845" definition-exists="false" ipc-concordant="F24H9/1845" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H9/1845</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>using solid fuel</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F24H9/1854" definition-exists="false" ipc-concordant="F24H9/1854" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H9/1854</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>for air heaters</text></title-part></class-title><notes-and-warnings><note type="warning"><note-paragraph warning-type="reclass-source">Group <class-ref scheme="cpc">F24H9/1854</class-ref> is impacted by reclassification into group <class-ref scheme="cpc">F24H9/1877</class-ref>.<br/>Groups <class-ref scheme="cpc">F24H9/1854</class-ref> and <class-ref scheme="cpc">F24H9/1877</class-ref> should be considered in order to perform a complete search.</note-paragraph></note></notes-and-warnings>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F24H9/1863" definition-exists="false" ipc-concordant="F24H9/1863" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H9/1863</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>Arrangement or mounting of electric heating means</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F24H9/1872" definition-exists="false" ipc-concordant="F24H9/1863" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H9/1872</classification-symbol><class-title date-revised="2022-01-01"><title-part><CPC-specific-text><text>PTC</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F24H9/1877" definition-exists="false" ipc-concordant="F24H9/1877" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H9/1877</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>Arrangement or mounting of combustion heating means, e.g. grates or burners</text></title-part></class-title><notes-and-warnings><note type="warning"><note-paragraph warning-type="reclass-destination">Group <class-ref scheme="cpc">F24H9/1877</class-ref> is incomplete pending reclassification of documents from group <class-ref scheme="cpc">F24H9/1854</class-ref>.<br/>Groups <class-ref scheme="cpc">F24H9/1854</class-ref> and <class-ref scheme="cpc">F24H9/1877</class-ref> should be considered in order to perform a complete search.</note-paragraph></note></notes-and-warnings>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F24H9/1881" definition-exists="false" ipc-concordant="F24H9/1881" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H9/1881</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>using fluid fuel</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F24H9/189" definition-exists="false" ipc-concordant="F24H9/189" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H9/189</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>using solid fuel</text></title-part></class-title></classification-item></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F24H9/20" definition-exists="true" ipc-concordant="F24H9/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H9/20</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>Arrangement or mounting of control or safety devices</text></title-part></class-title><notes-and-warnings><note type="warning"><note-paragraph warning-type="reclass-source">Group <class-ref scheme="cpc">F24H9/20</class-ref> is impacted by reclassification into groups <class-ref scheme="cpc">F24H9/25</class-ref>, <class-ref scheme="cpc">F24H9/28</class-ref>, and <class-ref scheme="cpc">F24H15/00</class-ref> - <class-ref scheme="cpc">F24H15/493</class-ref>.<br/>All groups listed in this Warning should be considered in order to perform a complete search.</note-paragraph></note></notes-and-warnings>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F24H9/2007" definition-exists="false" ipc-concordant="F24H9/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H9/2007</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>for water heaters</text></CPC-specific-text></title-part></class-title><notes-and-warnings><note type="warning"><note-paragraph warning-type="reclass-source">Group <class-ref scheme="cpc">F24H9/2007</class-ref> is impacted by reclassification into groups <class-ref scheme="cpc">F24H9/25</class-ref>, <class-ref scheme="cpc">F24H9/28</class-ref>, and <class-ref scheme="cpc">F24H15/00</class-ref> - <class-ref scheme="cpc">F24H15/493</class-ref>.<br/>All groups listed in this Warning should be considered in order to perform a complete search.</note-paragraph></note></notes-and-warnings>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F24H9/2014" definition-exists="false" ipc-concordant="F24H9/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H9/2014</classification-symbol><class-title date-revised="2022-01-01"><title-part><CPC-specific-text><text>using electrical energy supply</text></CPC-specific-text></title-part></class-title><notes-and-warnings><note type="warning"><note-paragraph warning-type="reclass-source">Group <class-ref scheme="cpc">F24H9/2014</class-ref> is impacted by reclassification into groups <class-ref scheme="cpc">F24H9/25</class-ref>, <class-ref scheme="cpc">F24H9/28</class-ref>, and <class-ref scheme="cpc">F24H15/00</class-ref> - <class-ref scheme="cpc">F24H15/493</class-ref>.<br/>All groups listed in this Warning should be considered in order to perform a complete search.</note-paragraph></note></notes-and-warnings>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F24H9/2021" definition-exists="false" ipc-concordant="F24H9/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H9/2021</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Storage heaters</text></CPC-specific-text></title-part></class-title><notes-and-warnings><note type="warning"><note-paragraph warning-type="reclass-source">Group <class-ref scheme="cpc">F24H9/2021</class-ref> is impacted by reclassification into groups <class-ref scheme="cpc">F24H9/25</class-ref>, <class-ref scheme="cpc">F24H9/28</class-ref>, and <class-ref scheme="cpc">F24H15/00</class-ref> - <class-ref scheme="cpc">F24H15/493</class-ref>.<br/>All groups listed in this Warning should be considered in order to perform a complete search.</note-paragraph></note></notes-and-warnings></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F24H9/2028" definition-exists="false" ipc-concordant="F24H9/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H9/2028</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Continuous-flow heaters</text></CPC-specific-text></title-part></class-title><notes-and-warnings><note type="warning"><note-paragraph warning-type="reclass-source">Group <class-ref scheme="cpc">F24H9/2028</class-ref> is impacted by reclassification into groups <class-ref scheme="cpc">F24H9/25</class-ref>, <class-ref scheme="cpc">F24H9/28</class-ref>, and <class-ref scheme="cpc">F24H15/00</class-ref> - <class-ref scheme="cpc">F24H15/493</class-ref>.<br/>All groups listed in this Warning should be considered in order to perform a complete search.</note-paragraph></note></notes-and-warnings></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F24H9/2035" definition-exists="false" ipc-concordant="F24H9/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H9/2035</classification-symbol><class-title date-revised="2022-01-01"><title-part><CPC-specific-text><text>using fluid fuel</text></CPC-specific-text></title-part></class-title><notes-and-warnings><note type="warning"><note-paragraph warning-type="reclass-source">Group <class-ref scheme="cpc">F24H9/2035</class-ref> is impacted by reclassification into groups <class-ref scheme="cpc">F24H9/25</class-ref>, <class-ref scheme="cpc">F24H9/28</class-ref>, and <class-ref scheme="cpc">F24H15/00</class-ref> - <class-ref scheme="cpc">F24H15/493</class-ref>.<br/>All groups listed in this Warning should be considered in order to perform a complete search.</note-paragraph></note></notes-and-warnings>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F24H9/2042" definition-exists="false" ipc-concordant="F24H9/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H9/2042</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Preventing or detecting the return of combustion gases</text></CPC-specific-text></title-part></class-title><notes-and-warnings><note type="warning"><note-paragraph warning-type="reclass-source">Group <class-ref scheme="cpc">F24H9/2042</class-ref> is impacted by reclassification into groups <class-ref scheme="cpc">F24H9/25</class-ref>, <class-ref scheme="cpc">F24H9/28</class-ref>, and <class-ref scheme="cpc">F24H15/00</class-ref> - <class-ref scheme="cpc">F24H15/493</class-ref>.<br/>All groups listed in this Warning should be considered in order to perform a complete search.</note-paragraph></note></notes-and-warnings>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="F24H9/205" definition-exists="false" ipc-concordant="F24H9/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H9/205</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Closing the energy supply</text></CPC-specific-text></title-part></class-title><notes-and-warnings><note type="warning"><note-paragraph warning-type="reclass-source">Group <class-ref scheme="cpc">F24H9/205</class-ref> is impacted by reclassification into groups <class-ref scheme="cpc">F24H9/25</class-ref>, <class-ref scheme="cpc">F24H9/28</class-ref>, and <class-ref scheme="cpc">F24H15/00</class-ref> - <class-ref scheme="cpc">F24H15/493</class-ref>.<br/>All groups listed in this Warning should be considered in order to perform a complete search.</note-paragraph></note></notes-and-warnings></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F24H9/2057" definition-exists="false" ipc-concordant="F24H9/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H9/2057</classification-symbol><class-title date-revised="2022-01-01"><title-part><CPC-specific-text><text>using solid fuel</text></CPC-specific-text></title-part></class-title><notes-and-warnings><note type="warning"><note-paragraph warning-type="reclass-source">Group <class-ref scheme="cpc">F24H9/2057</class-ref> is impacted by reclassification into groups <class-ref scheme="cpc">F24H9/25</class-ref>, <class-ref scheme="cpc">F24H9/28</class-ref>, and <class-ref scheme="cpc">F24H15/00</class-ref> - <class-ref scheme="cpc">F24H15/493</class-ref>.<br/>All groups listed in this Warning should be considered in order to perform a complete search.</note-paragraph></note></notes-and-warnings></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F24H9/2064" definition-exists="false" ipc-concordant="F24H9/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H9/2064</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>for air heaters</text></CPC-specific-text></title-part></class-title><notes-and-warnings><note type="warning"><note-paragraph warning-type="reclass-source">Group <class-ref scheme="cpc">F24H9/2064</class-ref> is impacted by reclassification into groups <class-ref scheme="cpc">F24H9/25</class-ref>, <class-ref scheme="cpc">F24H9/28</class-ref>, and <class-ref scheme="cpc">F24H15/00</class-ref> - <class-ref scheme="cpc">F24H15/493</class-ref>.<br/>All groups listed in this Warning should be considered in order to perform a complete search.</note-paragraph></note></notes-and-warnings>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F24H9/2071" definition-exists="false" ipc-concordant="F24H9/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H9/2071</classification-symbol><class-title date-revised="2022-01-01"><title-part><CPC-specific-text><text>using electrical energy supply</text></CPC-specific-text></title-part></class-title><notes-and-warnings><note type="warning"><note-paragraph warning-type="reclass-source">Group <class-ref scheme="cpc">F24H9/2071</class-ref> is impacted by reclassification into groups <class-ref scheme="cpc">F24H9/25</class-ref>, <class-ref scheme="cpc">F24H9/28</class-ref>, and <class-ref scheme="cpc">F24H15/00</class-ref> - <class-ref scheme="cpc">F24H15/493</class-ref>.<br/>All groups listed in this Warning should be considered in order to perform a complete search.</note-paragraph></note></notes-and-warnings>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F24H9/2078" definition-exists="false" ipc-concordant="F24H9/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H9/2078</classification-symbol><class-title date-revised="2022-01-01"><title-part><CPC-specific-text><text>Storage heaters</text></CPC-specific-text></title-part></class-title><notes-and-warnings><note type="warning"><note-paragraph warning-type="reclass-source">Group <class-ref scheme="cpc">F24H9/2078</class-ref> is impacted by reclassification into groups <class-ref scheme="cpc">F24H9/25</class-ref>, <class-ref scheme="cpc">F24H9/28</class-ref>, and <class-ref scheme="cpc">F24H15/00</class-ref> - <class-ref scheme="cpc">F24H15/493</class-ref>.<br/>All groups listed in this Warning should be considered in order to perform a complete search.</note-paragraph></note></notes-and-warnings></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F24H9/2085" definition-exists="false" ipc-concordant="F24H9/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H9/2085</classification-symbol><class-title date-revised="2022-01-01"><title-part><CPC-specific-text><text>using fluid fuel</text></CPC-specific-text></title-part></class-title><notes-and-warnings><note type="warning"><note-paragraph warning-type="reclass-source">Group <class-ref scheme="cpc">F24H9/2085</class-ref> is impacted by reclassification into groups <class-ref scheme="cpc">F24H9/25</class-ref>, <class-ref scheme="cpc">F24H9/28</class-ref>, and <class-ref scheme="cpc">F24H15/00</class-ref> - <class-ref scheme="cpc">F24H15/493</class-ref>.<br/>All groups listed in this Warning should be considered in order to perform a complete search.</note-paragraph></note></notes-and-warnings></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F24H9/2092" definition-exists="false" ipc-concordant="F24H9/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H9/2092</classification-symbol><class-title date-revised="2022-01-01"><title-part><CPC-specific-text><text>using solid fuel</text></CPC-specific-text></title-part></class-title><notes-and-warnings><note type="warning"><note-paragraph warning-type="reclass-source">Group <class-ref scheme="cpc">F24H9/2092</class-ref> is impacted by reclassification into groups <class-ref scheme="cpc">F24H9/25</class-ref>, <class-ref scheme="cpc">F24H9/28</class-ref>, and <class-ref scheme="cpc">F24H15/00</class-ref> - <class-ref scheme="cpc">F24H15/493</class-ref>.<br/>All groups listed in this Warning should be considered in order to perform a complete search.</note-paragraph></note></notes-and-warnings></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F24H9/25" definition-exists="false" ipc-concordant="F24H9/25" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H9/25</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>of remote control devices or control-panels</text></title-part></class-title><notes-and-warnings><note type="warning"><note-paragraph warning-type="reclass-destination">Groups <class-ref scheme="cpc">F24H9/25</class-ref> and <class-ref scheme="cpc">F24H9/28</class-ref> are incomplete pending reclassification of documents from groups <class-ref scheme="cpc">F24H9/20</class-ref>, <class-ref scheme="cpc">F24H9/2007</class-ref>, <class-ref scheme="cpc">F24H9/2014</class-ref>, <class-ref scheme="cpc">F24H9/2021</class-ref>, <class-ref scheme="cpc">F24H9/2028</class-ref>, <class-ref scheme="cpc">F24H9/2035</class-ref>, <class-ref scheme="cpc">F24H9/2042</class-ref>, <class-ref scheme="cpc">F24H9/205</class-ref>, <class-ref scheme="cpc">F24H9/2057</class-ref>, <class-ref scheme="cpc">F24H9/2064</class-ref>, <class-ref scheme="cpc">F24H9/2071</class-ref>, <class-ref scheme="cpc">F24H9/2078</class-ref>, <class-ref scheme="cpc">F24H9/2085</class-ref>, and <class-ref scheme="cpc">F24H9/2092</class-ref>.<br/>All groups listed in this Warning should be considered in order to perform a complete search.</note-paragraph></note></notes-and-warnings>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F24H9/28" definition-exists="false" ipc-concordant="F24H9/28" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H9/28</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>characterised by the graphical user interface [GUI]</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F24H9/40" definition-exists="false" ipc-concordant="F24H9/40" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H9/40</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>Arrangements for preventing corrosion</text></title-part></class-title><notes-and-warnings><note type="warning"><note-paragraph warning-type="reclass-destination">Groups <class-ref scheme="cpc">F24H9/40</class-ref>, <class-ref scheme="cpc">F24H9/455</class-ref>, and <class-ref scheme="cpc">F24H9/457</class-ref> are incomplete pending reclassification of documents from group <class-ref scheme="cpc">F24H9/45</class-ref>.<br/>All groups listed in this Warning should be considered in order to perform a complete search.</note-paragraph></note></notes-and-warnings>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F24H9/45" definition-exists="false" ipc-concordant="F24H9/45" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H9/45</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>for preventing galvanic corrosion, e.g. cathodic or electrolytic means</text></title-part></class-title><notes-and-warnings><note type="warning"><note-paragraph warning-type="reclass-source">Group <class-ref scheme="cpc">F24H9/45</class-ref> is impacted by reclassification into groups <class-ref scheme="cpc">F24H9/40</class-ref>, <class-ref scheme="cpc">F24H9/455</class-ref>, and <class-ref scheme="cpc">F24H9/457</class-ref>.<br/>All groups listed in this Warning should be considered in order to perform a complete search.</note-paragraph></note></notes-and-warnings>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F24H9/455" definition-exists="false" ipc-concordant="F24H9/45" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H9/455</classification-symbol><class-title date-revised="2022-01-01"><title-part><CPC-specific-text><text>for water heaters</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F24H9/457" definition-exists="false" ipc-concordant="F24H9/45" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H9/457</classification-symbol><class-title date-revised="2022-01-01"><title-part><CPC-specific-text><text>for air heaters</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="F24H15/00" definition-exists="false" ipc-concordant="F24H15/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H15/00</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>Control of fluid heaters</text></title-part></class-title><notes-and-warnings><note type="warning"><note-paragraph warning-type="reclass-destination">Groups <class-ref scheme="cpc">F24H15/00</class-ref> - <class-ref scheme="cpc">F24H15/493</class-ref> are incomplete pending reclassification of documents from groups <class-ref scheme="cpc">F24D19/10</class-ref> - <class-ref scheme="cpc">F24D19/1096</class-ref> and <class-ref scheme="cpc">F24H9/20</class-ref> - <class-ref scheme="cpc">F24H9/2092</class-ref>.<br/>All groups listed in this Warning should be considered in order to perform a complete search.</note-paragraph></note></notes-and-warnings>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F24H15/10" definition-exists="false" ipc-concordant="F24H15/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H15/10</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>characterised by the purpose of the control</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F24H15/104" definition-exists="false" ipc-concordant="F24H15/104" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H15/104</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>Inspection</text></title-part><title-part><text>Diagnosis</text></title-part><title-part><text>Trial operation</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F24H15/108" definition-exists="false" ipc-concordant="F24H15/108" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H15/108</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>Resuming operation, e.g. after power outages</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F24H15/112" definition-exists="false" ipc-concordant="F24H15/112" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H15/112</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>Preventing or detecting blocked flues</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F24H15/116" definition-exists="false" ipc-concordant="F24H15/116" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H15/116</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>Disabling the heating means in response thereto</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F24H15/12" definition-exists="false" ipc-concordant="F24H15/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H15/12</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>Preventing or detecting fluid leakage</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F24H15/124" definition-exists="false" ipc-concordant="F24H15/124" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H15/124</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>Preventing or detecting electric faults, e.g. electric leakage</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F24H15/128" definition-exists="false" ipc-concordant="F24H15/128" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H15/128</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>Preventing overheating</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F24H15/132" definition-exists="false" ipc-concordant="F24H15/132" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H15/132</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>Preventing the operation of water heaters with low water levels, e.g. dry-firing</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F24H15/136" definition-exists="false" ipc-concordant="F24H15/136" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H15/136</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>Defrosting or de-icing</text></title-part><title-part><text>Preventing freezing</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F24H15/14" definition-exists="false" ipc-concordant="F24H15/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H15/14</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>Cleaning</text></title-part><title-part><text>Sterilising</text></title-part><title-part><text>Preventing contamination by bacteria or microorganisms, e.g. by replacing fluid in tanks or conduits</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F24H15/144" definition-exists="false" ipc-concordant="F24H15/144" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H15/144</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>Measuring or calculating energy consumption</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F24H15/148" definition-exists="false" ipc-concordant="F24H15/148" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H15/148</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>Assessing the current energy consumption</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F24H15/152" definition-exists="false" ipc-concordant="F24H15/152" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H15/152</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>Forecasting future energy consumption</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F24H15/156" definition-exists="false" ipc-concordant="F24H15/156" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H15/156</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>Reducing the quantity of energy consumed</text></title-part><title-part><text>Increasing efficiency</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F24H15/16" definition-exists="false" ipc-concordant="F24H15/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H15/16</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>Reducing cost using the price of energy, e.g. choosing or switching between different energy sources</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F24H15/164" definition-exists="false" ipc-concordant="F24H15/164" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H15/164</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>where the price of the electric supply changes with time</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F24H15/168" definition-exists="false" ipc-concordant="F24H15/168" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H15/168</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>Reducing the electric power demand peak</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F24H15/172" definition-exists="false" ipc-concordant="F24H15/172" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H15/172</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>Scheduling based on user demand, e.g. determining starting point of heating</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F24H15/174" definition-exists="false" ipc-concordant="F24H15/174" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H15/174</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>Supplying heated water with desired temperature or desired range of temperature</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F24H15/175" definition-exists="false" ipc-concordant="F24H15/175" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H15/175</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>where the difference between the measured temperature and a set temperature is kept under a predetermined value</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F24H15/176" definition-exists="false" ipc-concordant="F24H15/176" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H15/176</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>Improving or maintaining comfort of users</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F24H15/18" definition-exists="false" ipc-concordant="F24H15/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H15/18</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>Preventing sudden or unintentional change of fluid temperature</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F24H15/184" definition-exists="false" ipc-concordant="F24H15/184" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H15/184</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>Preventing harm to users from exposure to heated water, e.g. scalding</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F24H15/196" definition-exists="false" ipc-concordant="F24H15/196" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H15/196</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>Automatically filling bathtubs or pools</text></title-part><title-part><text>Reheating the water in bathtubs or pools</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F24H15/20" definition-exists="false" ipc-concordant="F24H15/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H15/20</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>characterised by control inputs</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F24H15/204" definition-exists="true" ipc-concordant="F24H15/204" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H15/204</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>Temperature of the air before heating</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F24H15/208" definition-exists="false" ipc-concordant="F24H15/208" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H15/208</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>Temperature of the air after heating</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F24H15/212" definition-exists="false" ipc-concordant="F24H15/212" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H15/212</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>Temperature of the water</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F24H15/215" definition-exists="false" ipc-concordant="F24H15/215" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H15/215</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>before heating</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F24H15/219" definition-exists="false" ipc-concordant="F24H15/219" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H15/219</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>after heating</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F24H15/223" definition-exists="false" ipc-concordant="F24H15/223" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H15/223</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>in the water storage tank</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F24H15/225" definition-exists="false" ipc-concordant="F24H15/225" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H15/225</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>at different heights of the tank</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F24H15/227" definition-exists="false" ipc-concordant="F24H15/227" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H15/227</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>Temperature of the refrigerant in heat pump cycles</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F24H15/231" definition-exists="false" ipc-concordant="F24H15/231" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H15/231</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>at the evaporator</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F24H15/232" definition-exists="false" ipc-concordant="F24H15/232" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H15/232</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>at the condenser</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F24H15/235" definition-exists="false" ipc-concordant="F24H15/235" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H15/235</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>Temperature of exhaust gases</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F24H15/238" definition-exists="false" ipc-concordant="F24H15/238" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H15/238</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>Flow rate</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F24H15/242" definition-exists="false" ipc-concordant="F24H15/242" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H15/242</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>Pressure</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F24H15/246" definition-exists="false" ipc-concordant="F24H15/246" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H15/246</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>Water level</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F24H15/248" definition-exists="false" ipc-concordant="F24H15/248" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H15/248</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>of water storage tanks</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F24H15/25" definition-exists="false" ipc-concordant="F24H15/25" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H15/25</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>Temperature of the heat-generating means in the heater</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F24H15/254" definition-exists="false" ipc-concordant="F24H15/254" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H15/254</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>Room temperature</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F24H15/258" definition-exists="false" ipc-concordant="F24H15/258" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H15/258</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>Outdoor temperature</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F24H15/262" definition-exists="false" ipc-concordant="F24H15/262" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H15/262</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>Weather information or forecast</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F24H15/265" definition-exists="false" ipc-concordant="F24H15/265" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H15/265</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>Occupancy</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F24H15/269" definition-exists="false" ipc-concordant="F24H15/269" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H15/269</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>Time, e.g. hour or date</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F24H15/273" definition-exists="false" ipc-concordant="F24H15/273" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H15/273</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>Address or location</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F24H15/277" definition-exists="false" ipc-concordant="F24H15/277" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H15/277</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>Price</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F24H15/281" definition-exists="false" ipc-concordant="F24H15/281" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H15/281</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>Input from user</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F24H15/288" definition-exists="false" ipc-concordant="F24H15/288" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H15/288</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>Accumulation of deposits, e.g. lime or scale</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F24H15/292" definition-exists="false" ipc-concordant="F24H15/292" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H15/292</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>Metering of electricity sold to the grid</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F24H15/296" definition-exists="false" ipc-concordant="F24H15/296" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H15/296</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>Information from neighbouring devices</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F24H15/30" definition-exists="false" ipc-concordant="F24H15/30" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H15/30</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>characterised by control outputs</text></title-part><title-part><text>characterised by the components to be controlled</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F24H15/305" definition-exists="false" ipc-concordant="F24H15/305" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H15/305</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>Control of valves </text><reference><text>of heat pumps <class-ref scheme="cpc">F24H15/385</class-ref>, <class-ref scheme="cpc">F24H15/39</class-ref></text></reference></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F24H15/31" definition-exists="false" ipc-concordant="F24H15/31" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H15/31</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>of valves having only one inlet port and one outlet port, e.g. flow rate regulating valves</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F24H15/315" definition-exists="false" ipc-concordant="F24H15/315" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H15/315</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>of mixing valves</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F24H15/32" definition-exists="false" ipc-concordant="F24H15/32" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H15/32</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>of switching valves </text><reference><text>for by-passing <class-ref scheme="cpc">F24H15/325</class-ref></text></reference></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F24H15/325" definition-exists="false" ipc-concordant="F24H15/325" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H15/325</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>of by-pass valves</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F24H15/33" definition-exists="false" ipc-concordant="F24H15/33" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H15/33</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>Control of dampers</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F24H15/335" definition-exists="false" ipc-concordant="F24H15/335" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H15/335</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>Control of pumps, e.g. on-off control </text><reference><text>control of compressors of heat pumps <class-ref scheme="cpc">F24H15/38</class-ref></text></reference></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F24H15/34" definition-exists="false" ipc-concordant="F24H15/34" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H15/34</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>Control of the speed of pumps</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F24H15/345" definition-exists="false" ipc-concordant="F24H15/345" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H15/345</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>Control of fans, e.g. on-off control </text><reference><text>control of fans of heat pump units <class-ref scheme="cpc">F24H15/375</class-ref></text></reference></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F24H15/35" definition-exists="false" ipc-concordant="F24H15/35" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H15/35</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>Control of the speed of fans</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F24H15/355" definition-exists="false" ipc-concordant="F24H15/355" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H15/355</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>Control of heat-generating means in heaters</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F24H15/36" definition-exists="false" ipc-concordant="F24H15/36" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H15/36</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>of burners</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F24H15/365" definition-exists="false" ipc-concordant="F24H15/365" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H15/365</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>of two or more burners, e.g. an array of burners</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F24H15/37" definition-exists="false" ipc-concordant="F24H15/37" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H15/37</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>of electric heaters</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F24H15/375" definition-exists="false" ipc-concordant="F24H15/375" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H15/375</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>Control of heat pumps</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F24H15/38" definition-exists="false" ipc-concordant="F24H15/38" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H15/38</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>Control of compressors of heat pumps</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F24H15/385" definition-exists="false" ipc-concordant="F24H15/385" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H15/385</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>Control of expansion valves of heat pumps</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F24H15/39" definition-exists="false" ipc-concordant="F24H15/39" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H15/39</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>Control of valves for distributing refrigerant to different evaporators or condensers in heat pumps</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F24H15/395" definition-exists="false" ipc-concordant="F24H15/395" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H15/395</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>Information to users, e.g. alarms</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F24H15/40" definition-exists="false" ipc-concordant="F24H15/40" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H15/40</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>characterised by the type of controllers</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F24H15/407" definition-exists="false" ipc-concordant="F24H15/407" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H15/407</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>using electrical switching, e.g. TRIAC</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F24H15/414" definition-exists="false" ipc-concordant="F24H15/414" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H15/414</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>using electronic processing, e.g. computer-based</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F24H15/421" definition-exists="false" ipc-concordant="F24H15/421" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H15/421</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>using pre-stored data</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F24H15/429" definition-exists="false" ipc-concordant="F24H15/429" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H15/429</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>for selecting operation modes</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F24H15/436" definition-exists="false" ipc-concordant="F24H15/436" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H15/436</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>for selecting sleeping modes</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F24H15/443" definition-exists="false" ipc-concordant="F24H15/443" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H15/443</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>using a central controller connected to several sub-controllers</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F24H15/45" definition-exists="false" ipc-concordant="F24H15/45" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H15/45</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>remotely accessible</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F24H15/457" definition-exists="true" ipc-concordant="F24H15/457" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H15/457</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>using telephone networks or Internet communication</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F24H15/464" definition-exists="false" ipc-concordant="F24H15/464" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H15/464</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>using local wireless communication</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F24H15/479" definition-exists="false" ipc-concordant="F24H15/479" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H15/479</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>for programming the system</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F24H15/486" definition-exists="false" ipc-concordant="F24H15/486" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H15/486</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>using timers</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F24H15/493" definition-exists="false" ipc-concordant="F24H15/493" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H15/493</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>specially adapted for enabling recognition of parts newly installed in the fluid heating system, e.g. for retrofitting or for repairing by replacing parts</text></title-part></class-title></classification-item></classification-item></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="true" level="6" additional-only="true" sort-key="F24H203/00" date-revised="2013-01-01" status="published"><classification-symbol>F24H2203/00</classification-symbol>
<classification-item breakdown-code="true" not-allocatable="false" level="7" additional-only="true" sort-key="F24H203/00" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H2203/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>** to be deleted **</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="7" additional-only="true" sort-key="F24H210/00" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H2210/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Burner and heat exchanger are integrated</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="7" additional-only="true" sort-key="F24H220/00" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H2220/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Measures for environmentally correct disposal</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="7" additional-only="true" sort-key="F24H230/00" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H2230/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Solid fuel fired boiler</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F24H230/02" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H2230/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Solid and fluid fuel fired boilers</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="7" additional-only="true" sort-key="F24H240/00" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H2240/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Fluid heaters having electrical generators</text></title-part></class-title><notes-and-warnings><note type="warning"><note-paragraph warning-type="reclass-source">Group <class-ref scheme="cpc">F24H2240/00</class-ref> is impacted by reclassification into groups <class-ref scheme="cpc">F24D18/00</class-ref> and <class-ref scheme="cpc">F24D2101/00</class-ref> - <class-ref scheme="cpc">F24D2105/10</class-ref>.<br/>Groups <class-ref scheme="cpc">F24H2240/00</class-ref>, <class-ref scheme="cpc">F24D18/00</class-ref> and <class-ref scheme="cpc">F24D2101/00</class-ref> - <class-ref scheme="cpc">F24D2105/10</class-ref> should be considered in order to perform a complete search.</note-paragraph></note></notes-and-warnings>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F24H240/01" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H2240/01</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Batteries, electrical energy storage device</text></title-part></class-title><notes-and-warnings><note type="warning"><note-paragraph warning-type="reclass-source">Group <class-ref scheme="cpc">F24H2240/01</class-ref> is impacted by reclassification into groups <class-ref scheme="cpc">F24D18/00</class-ref> and <class-ref scheme="cpc">F24D2101/00</class-ref> - <class-ref scheme="cpc">F24D2105/10</class-ref>.<br/>Groups <class-ref scheme="cpc">F24H2240/01</class-ref>, <class-ref scheme="cpc">F24D18/00</class-ref> and <class-ref scheme="cpc">F24D2101/00</class-ref> - <class-ref scheme="cpc">F24D2105/10</class-ref> should be considered in order to perform a complete search.</note-paragraph></note></notes-and-warnings></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F24H240/02" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H2240/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with combustion engines</text></title-part></class-title><notes-and-warnings><note type="warning"><note-paragraph warning-type="reclass-source">Group <class-ref scheme="cpc">F24H2240/02</class-ref> is impacted by reclassification into groups <class-ref scheme="cpc">F24D18/00</class-ref> and <class-ref scheme="cpc">F24D2101/00</class-ref> - <class-ref scheme="cpc">F24D2105/10</class-ref>.<br/>Groups <class-ref scheme="cpc">F24H2240/02</class-ref>, <class-ref scheme="cpc">F24D18/00</class-ref> and <class-ref scheme="cpc">F24D2101/00</class-ref> - <class-ref scheme="cpc">F24D2105/10</class-ref> should be considered in order to perform a complete search.</note-paragraph></note></notes-and-warnings>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F24H240/04" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H2240/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>External combustion engines</text></title-part></class-title><notes-and-warnings><note type="warning"><note-paragraph warning-type="reclass-source">Group <class-ref scheme="cpc">F24H2240/04</class-ref> is impacted by reclassification into groups <class-ref scheme="cpc">F24D18/00</class-ref> and <class-ref scheme="cpc">F24D2101/00</class-ref> - <class-ref scheme="cpc">F24D2105/10</class-ref>.<br/>Groups <class-ref scheme="cpc">F24H2240/04</class-ref>, <class-ref scheme="cpc">F24D18/00</class-ref> and <class-ref scheme="cpc">F24D2101/00</class-ref> - <class-ref scheme="cpc">F24D2105/10</class-ref> should be considered in order to perform a complete search.</note-paragraph></note></notes-and-warnings></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F24H240/06" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H2240/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Internal combustion engines</text></title-part></class-title><notes-and-warnings><note type="warning"><note-paragraph warning-type="reclass-source">Group <class-ref scheme="cpc">F24H2240/06</class-ref> is impacted by reclassification into groups <class-ref scheme="cpc">F24D18/00</class-ref> and <class-ref scheme="cpc">F24D2101/00</class-ref> - <class-ref scheme="cpc">F24D2105/10</class-ref>.<br/>Groups <class-ref scheme="cpc">F24H2240/06</class-ref>, <class-ref scheme="cpc">F24D18/00</class-ref> and <class-ref scheme="cpc">F24D2101/00</class-ref> - <class-ref scheme="cpc">F24D2105/10</class-ref> should be considered in order to perform a complete search.</note-paragraph></note></notes-and-warnings></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F24H240/08" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H2240/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with peltier elements</text></title-part></class-title><notes-and-warnings><note type="warning"><note-paragraph warning-type="reclass-source">Group <class-ref scheme="cpc">F24H2240/08</class-ref> is impacted by reclassification into groups <class-ref scheme="cpc">F24D18/00</class-ref> and <class-ref scheme="cpc">F24D2101/00</class-ref> - <class-ref scheme="cpc">F24D2105/10</class-ref>.<br/>Groups <class-ref scheme="cpc">F24H2240/08</class-ref>, <class-ref scheme="cpc">F24D18/00</class-ref> and <class-ref scheme="cpc">F24D2101/00</class-ref> - <class-ref scheme="cpc">F24D2105/10</class-ref> should be considered in order to perform a complete search.</note-paragraph></note></notes-and-warnings></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F24H240/09" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H2240/09</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with photovoltaic cells</text></title-part></class-title><notes-and-warnings><note type="warning"><note-paragraph warning-type="reclass-source">Group <class-ref scheme="cpc">F24H2240/09</class-ref> is impacted by reclassification into groups <class-ref scheme="cpc">F24D18/00</class-ref> and <class-ref scheme="cpc">F24D2101/00</class-ref> - <class-ref scheme="cpc">F24D2105/10</class-ref>.<br/>Groups <class-ref scheme="cpc">F24H2240/09</class-ref>, <class-ref scheme="cpc">F24D18/00</class-ref> and <class-ref scheme="cpc">F24D2101/00</class-ref> - <class-ref scheme="cpc">F24D2105/10</class-ref> should be considered in order to perform a complete search.</note-paragraph></note></notes-and-warnings></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F24H240/10" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H2240/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with fuel cells</text></title-part></class-title><notes-and-warnings><note type="warning"><note-paragraph warning-type="reclass-source">Group <class-ref scheme="cpc">F24H2240/10</class-ref> is impacted by reclassification into groups <class-ref scheme="cpc">F24D18/00</class-ref> and <class-ref scheme="cpc">F24D2101/00</class-ref> - <class-ref scheme="cpc">F24D2105/10</class-ref>.<br/>Groups <class-ref scheme="cpc">F24H2240/10</class-ref>, <class-ref scheme="cpc">F24D18/00</class-ref> and <class-ref scheme="cpc">F24D2101/00</class-ref> - <class-ref scheme="cpc">F24D2105/10</class-ref> should be considered in order to perform a complete search</note-paragraph></note></notes-and-warnings></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F24H240/12" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H2240/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with thermodynamic cycle for converting thermal energy to mechanical power to produce electrical energy</text></title-part></class-title><notes-and-warnings><note type="warning"><note-paragraph warning-type="reclass-source">Group <class-ref scheme="cpc">F24H2240/12</class-ref> is impacted by reclassification into groups <class-ref scheme="cpc">F24D18/00</class-ref> and <class-ref scheme="cpc">F24D2101/00</class-ref> - <class-ref scheme="cpc">F24D2105/10</class-ref>.<br/>Groups <class-ref scheme="cpc">F24H2240/12</class-ref>, <class-ref scheme="cpc">F24D18/00</class-ref> and <class-ref scheme="cpc">F24D2101/00</class-ref> - <class-ref scheme="cpc">F24D2105/10</class-ref> should be considered in order to perform a complete search.</note-paragraph></note></notes-and-warnings>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F24H240/122" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H2240/122</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Stirling cycles</text></title-part></class-title><notes-and-warnings><note type="warning"><note-paragraph warning-type="reclass-source">Group <class-ref scheme="cpc">F24H2240/122</class-ref> is impacted by reclassification into groups <class-ref scheme="cpc">F24D18/00</class-ref> and <class-ref scheme="cpc">F24D2101/00</class-ref> - <class-ref scheme="cpc">F24D2105/10</class-ref>.<br/>Groups <class-ref scheme="cpc">F24H2240/122</class-ref>, <class-ref scheme="cpc">F24D18/00</class-ref> and <class-ref scheme="cpc">F24D2101/00</class-ref> - <class-ref scheme="cpc">F24D2105/10</class-ref> should be considered in order to perform a complete search.</note-paragraph></note></notes-and-warnings></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F24H240/125" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H2240/125</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Carnot cycles</text></title-part></class-title><notes-and-warnings><note type="warning"><note-paragraph warning-type="reclass-source">Group <class-ref scheme="cpc">F24H2240/125</class-ref> is impacted by reclassification into groups <class-ref scheme="cpc">F24D18/00</class-ref> and <class-ref scheme="cpc">F24D2101/00</class-ref> - <class-ref scheme="cpc">F24D2105/10</class-ref>.<br/>Groups <class-ref scheme="cpc">F24H2240/125</class-ref>, <class-ref scheme="cpc">F24D18/00</class-ref> and <class-ref scheme="cpc">F24D2101/00</class-ref> - <class-ref scheme="cpc">F24D2105/10</class-ref> should be considered in order to perform a complete search.</note-paragraph></note></notes-and-warnings></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F24H240/127" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F24H2240/127</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Rankine cycles, e.g. steam heat engines</text></title-part></class-title><notes-and-warnings><note type="warning"><note-paragraph warning-type="reclass-source">Group <class-ref scheme="cpc">F24H2240/127</class-ref> is impacted by reclassification into groups <class-ref scheme="cpc">F24D18/00</class-ref> and <class-ref scheme="cpc">F24D2101/00</class-ref> - <class-ref scheme="cpc">F24D2105/10</class-ref>.<br/>Groups <class-ref scheme="cpc">F24H2240/127</class-ref>, <class-ref scheme="cpc">F24D18/00</class-ref> and <class-ref scheme="cpc">F24D2101/00</class-ref> - <class-ref scheme="cpc">F24D2105/10</class-ref> should be considered in order to perform a complete search.</note-paragraph></note></notes-and-warnings></classification-item></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="7" additional-only="true" sort-key="F24H250/00" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H2250/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Electrical heat generating means</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F24H250/02" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H2250/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Resistances</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F24H250/04" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H2250/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Positive or negative temperature coefficients, e.g. PTC, NTC</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F24H250/06" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H2250/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Peltier</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F24H250/08" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H2250/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Induction</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F24H250/10" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H2250/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Electrodes</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F24H250/12" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H2250/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Microwaves</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F24H250/14" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F24H2250/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Lamps</text></title-part></class-title></classification-item></classification-item></classification-item></classification-item></class-scheme>