<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31413062</termId><termName>oil furnaces</termName><termType>PT</termType><termNote><![CDATA[ Furnaces for the production of heat by the combustion of oil. ]]></termNote><termCreatedDate>2026-03-30 20:51:05</termCreatedDate><relation><relationType>UF</relationType><termId>31413063</termId><termName>furnaces, oil</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31413064</termId><termName>oil furnace</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31377138</termId><termName>warm air furnaces</termName><termType>PT</termType></relation></term>  </Zthes>