<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31322116</termId><termName>heat-distributing units</termName><termType>PT</termType><termNote><![CDATA[ Refers generally to the components of heating systems that distribute heat within rooms and spaces, usually by radiation or convection. ]]></termNote><termCreatedDate>2026-03-30 20:26:51</termCreatedDate><relation><relationType>UF</relationType><termId>31322117</termId><termName>distribution equipment, heat</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31322118</termId><termName>heat distributing units</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31322119</termId><termName>heat distribution equipment</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31322120</termId><termName>heat-distributing unit</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31322121</termId><termName>heating terminals</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31322122</termId><termName>terminals, heating</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31322123</termId><termName>units, heat-distributing</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31306856</termId><termName>HVAC components</termName><termType>PT</termType></relation><relation><relationType>BT</relationType><termId>31321800</termId><termName>heating systems</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31347263</termId><termName>baseboard units</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31347274</termId><termName>convectors</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31347279</termId><termName>radiators</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31347281</termId><termName>thermal masses</termName><termType>PT</termType></relation></term>  </Zthes>