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  1. #1
    Join Date
    Mar 2006
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    I just bought an old duplex and was informed the cold air returns in the upstairs are vented into the chimney (gas furnace). Is this dangerous? What has to be done to correct the situation? I am converting this duplex to a single family. One furnace is bad (works, but cracked and noisy), the other is too small to heat the entire house. I would also like C/A put in. What is the best way to handle the situation?

  2. #2
    Join Date
    Nov 2001
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    Sounds like something that should be on our "wall of shame".
    Call a HVAC company and have the sales rep, take a look.
    I would get the returns out of there asap though.
    If you try to fail, and succeed.
    Which have you done ?

  3. #3
    Join Date
    Feb 2003
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    at best, one could get just odors back into the living area -- at worst, one could get dead from CO!

    I would not even walk into the upper area without throwing something thru a window to assure getting fresh air.
    harvest rainwater,make SHADE,R75/50/30= roof/wall/floor, use HVAC mastic,caulk all wall seams!

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