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  1. #1
    Join Date
    May 2007
    Location
    Colorado
    Posts
    101

    Model Home Question

    I am looking for a new home and have been going through the model homes at a few neighborhoods. I am hoping someone can answer a question that the "builders rep." could not. Bear with me I am no HVAC pro and I probably have incorrect terminology:

    Every house at one of the neighborhoods had a large metal vent coming through the exterior wall very close to the level of the ground. It looked just like a dryer vent, only a little larger. I put my hand under the vent and noticed the air was VERY cold, and coming out at a fairly good volume. I went into the same area in the basement and noticed there was a duct coming directly off of the main supply from the furnace going outside. Just as if there was a room there, a line just runs straight outside.

    This supply duct runs outside in all of the homes at this neighborhood. This appeared to be a basic GFA with A/C system. No humidifier, no electronic filter, no zoning (according to builders rep and I only saw one TStat.).

    Any ideas? Wouldnt pumping cold air out of the house not only be very wasteful, but also put a vacuum on the home? I am fairly interested in a few of the floorplans. I might be able to return sometime tomorrow with the camera and snap a few shots, unless you PROs know right away what I'm talking about.

  2. #2
    Join Date
    Jul 2006
    Location
    Virginia
    Posts
    4,818
    are you that is not the exaust for a down flow cook stove

  3. #3
    Join Date
    Jul 2008
    Location
    Denver, CO
    Posts
    4,229
    Quote Originally Posted by catmanacman View Post
    are you that is not the exaust for a down flow cook stove
    or maybe a vent tied into a fart fan

  4. #4
    Join Date
    Jul 2008
    Location
    Alabama
    Posts
    658

    Sounds like job security to me.

    No supply should be run outside. You are right , it will put a house in a vacuum.
    It could possibly be fresh air inlet and just felt like it was blowing.

  5. #5
    Join Date
    Jul 2000
    Location
    Northern Wisconsin
    Posts
    2,036
    Sounds like a fresh air intake that was mistakenly connected to the supply trunk line instead of the return.
    Use the biggest hammer you like, pounding a square peg into a round hole does not equal a proper fit.

  6. #6
    Join Date
    Jan 2004
    Location
    Lancaster PA
    Posts
    68,599
    Quote Originally Posted by firecontrol View Post
    Sounds like a fresh air intake that was mistakenly connected to the supply trunk line instead of the return.
    Thats what I'm thinking.
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