英语词汇“sealed combustion furnace”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	sealed combustion furnace
释义	Sealed combustion furnace Sealed combustion furnace Furnaces or boilers that draw air for combustion from outside the home directly onto the burner compartment and vent exhaust gases directly to the outside. The systems eliminate the possibility of backdrafting.
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Sealed combustion furnace