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  1. #1
    Join Date
    Jun 2008
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    forced air gas heater

    I have a forced air gas heater, and I've wondered if, when the fan is on, some of the air gets ventilated out to the outdoors. Would this never happen? The only ventilation in it is probably combustion gases, they would be separate from the air that's being heated?

    If circulating the air just circulates the air, rather than a lot of air leaking to the outdoors, then it's a good way of distributing humidity etc. I don't care if air leaks out to the garage, where the forced air ducts are, because I'm keeping that dehumidified too, and the garage is well sealed.


  2. #2
    Join Date
    Jan 2004
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    There should be no duct workon the supply side that blows air to the outside.
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    How many times must one fix something before it is fixed?

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