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  1. #1
    is there a reason why cold air is coming out from the return air vents. when the furnace is on . its not my house. i have steam heat. its my mother in-law house and she live too far for me to check it out .. i dont know to much about furnace but im willing to learn thanks guy..

    [Edited by green_apprentice on 10-26-2005 at 10:32 PM]

  2. #2
    Senior Tech Guest
    Ill bet they're in the ceiling?...Remember cold air falls, warm air rises.

  3. #3
    do you mean the way the ducts are run?

  4. #4
    Join Date
    Mar 2002
    Gaylord, Michigan
    Possible that a makeup air duct has been connected to the return trunk. Maybe you are feeling a draft from that?

  5. #5
    if it isa make up duct can it be fix to the point were she wont have cold air comming out.. thanks

  6. #6
    Join Date
    Mar 2002
    Gaylord, Michigan
    If it is a make up air causing the drafts, Skuttle makes a damper that should fix the problem. Though I doubt that it is, after re reading your original post, you said when the furnace is running. Could be improper ducting.

    Is this house on a crawl space? If so, could also be return air ducting not sealed, or has openings...allowing cold air to infiltrate.

    [Edited by Christheheatingdude on 10-26-2005 at 11:06 PM]

  7. #7
    furnace is in the basement. supply vents are on top of the space return vents are in the bottom.

  8. #8
    Join Date
    Aug 2002
    Office and warehouse in both Crystal River & New Port Richey ,FL
    Does she have a zoned system,common problem with a bad design and zoning.

  9. #9
    no zone dash.

  10. #10
    Join Date
    Oct 2005
    jiandsu province in china
    also i want to know

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