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  1. #1
    mathew stouffer's Avatar
    mathew stouffer Guest

    Default Height of furnace vent above grade

    This is an exhaust vent for a high efficiency furnace. As a rule of thumb is there a min height requirement above grade in areas with heavy snow fall. This was 14 inches on the northwest side of the home.

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  2. #2
    Join Date
    Feb 2008
    Location
    Caledon, Ontario
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    5,005

    Default Re: Height of furnace vent above grade

    If memory serves me correctly I think the minimum is 18". However it is easy enough to add an extension, should that not be high enough if there is drifting snow.

    And they should not discharge over sidewalks where the condensate dripping can freeze.


  3. #3
    Join Date
    Jul 2008
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    Snowbird (this means I'm retired and migrate between locations), FL/MI
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    4,086

    Default Re: Height of furnace vent above grade

    This is a duplicate post. See other with more responses at (clickable link): http://www.inspectionnews.net/home_i...ove-grade.html


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