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  1. #1
    Join Date
    Jan 2009
    Posts
    2

    Default Venting a high effiency furnace near windows

    Hello All,

    I just had a company come in today and install a 95.5% effiency furnace (forced hot air by natural gas) My concern is where they vented it, i have a 7 year old in one room and in the next few days i will have a newborn in another room that has windows close to the vent.


    Essentially there are 2 windows on the side of the house, the vent is about 3'9" away from one of the windows (diagonally) should this be a concern or am i ok?

  2. #2
    Join Date
    Nov 2007
    Posts
    28

    Default Re: Venting a high effiency furnace near windows

    Are the windows drafty and leak air? I would think the windows would be closed while the furnace is in use, no?

  3. #3
    Join Date
    Jan 2009
    Posts
    2

    Default Re: Venting a high effiency furnace near windows

    Well that is a very good point but i was thinking more for both A) in the event that they are and B) if i decide to sell the house, am i going to run into some huge code violation

  4. #4
    Join Date
    Jun 2007
    Location
    Fayette County, Ohio
    Posts
    5,842

    Default Re: Venting a high effiency furnace near windows

    Not sure where I saw it but it seems to me that it said a minimum of 4'. No bets on that though. Suggest you check with your locale building dept.
    Jack
    Be sure you live your life, because you are a long time dead.-Scottish Proverb

  5. #5
    Join Date
    Jan 2009
    Posts
    1

    Default Re: Venting a high effiency furnace near windows

    I also worry about the safety issues related to the air coming out of my high efficiency gas boiler vent. Mine is near a window as well. Keep in mind that if you have an indirect hot water heater (the water is heated by the boiler) the vent will have exhaust year round.

  6. #6
    Join Date
    Feb 2008
    Posts
    556

    Default Re: Venting a high effiency furnace near windows

    Regardless of what the codes allow (most times they require only 12" clearance from the window), I would recommend contacting the local Fire Dept.---each FD has spe******t firemen whose job it is to monitor heating & venting equipment and its placement so that it is not a carbon monoxide threat, especially to young children.

    The FD handles many of these calls annually & if they see a problem, will petition the city council to rewrite the town fire code ordinances.

    Aside from that, it's important to get the name & model # of the furnace & check its installation manual---they're required to include a wealth of info on venting guidelines, distance from windows, doors, etc., as noted in the National Fuel Gas Code/ ANSI Z223.1/NFPA 54, "Exterior Vent Placements"

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