Comments by "king james488" (@kingjames4886) on "Forced-air Furnaces: The What, Why, and How" video.

  1. they get hot. I put wood in mine and it burns... the house becomes warm. also backup electric heat, but it costs a lot to run.
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  2. how airtight is your house that you need a carbon monoxide detector in every room? just put one in the basement... it's a heavy gas.
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