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  1. #14
    Join Date
    May 2008
    Location
    Boulder, Colorado
    Posts
    7
    Well its a mechanical room with two combustion air ducts, its in the middle of the house and basement level. The cap is just above the ridge and more than 4 feet from the roof. I thought of that too as when i got there it was only 16inches from the roof and a foot below the ridge. I fixed that.

  2. #15
    Join Date
    Feb 2004
    Location
    New Mexico
    Posts
    5,737
    Make sure the fireplace damper is closed. In a tight home A fireplace will snag air anywhere it can find it. If the furnace is in a unheated place you might cancel the draft.
    In a fix a draft inducer will work. I've had to use them when the furnace was near a commercial kitchen.
    Because the water is on the flue also it should keep the flue warm enough to draft. If it's back drafting also I'd probably look for whatever is causing a negative pressure in the home.
    "What Fools these mortals be"....Puck

  3. #16
    Join Date
    Jan 2004
    Location
    PA
    Posts
    68,789
    2' above peak, or 10' lateralfrom roof or other objects.
    So it runs through the cold attic also.
    Contractor locator map

    How-to-apply-for-Professional

    How many times must one fix something before it is fixed?

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