英语词汇“unvented gas heater”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	unvented gas heater
释义	Unvented gas heater Unvented gas heater Gas-burning space heater that is not vented to the outdoors. Although unvented gas heaters burn very efficiently, indoor air quality experts strongly discourage their use because combustion gases, including high levels of water vapor, are released into the room or building.
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Unvented gas heater