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  1. #1
    Join Date
    Aug 2005
    Posts
    9
    My hot air furnace / AC unit gets most of its intake air from a vent on the side of the furnace itself. This means that it is pumping air from the basement thoughout my home. Is this a bad idea?

  2. #2
    Join Date
    Mar 2005
    Posts
    997
    Nothing wrong with it if you have some way for upstairs air to get to basement

  3. #3
    Join Date
    Mar 2005
    Location
    burlington county n.j.
    Posts
    9,723
    Originally posted by cobra888
    My hot air furnace / AC unit gets most of its intake air from a vent on the side of the furnace itself. This means that it is pumping air from the basement thoughout my home. Is this a bad idea?


    could be sucking backdraft down chimney if not enough air into basement. we are not allowed to pull return from heater area for this reason.

  4. #4
    Join Date
    Jun 2003
    Location
    Madison, WI/Cape Coral, FL
    Posts
    6,336
    Must keep the basement "positive pressure"! Back-drafting chiminey and sucking in soil gas(moisture and radon) a no-no. So more supply than return unless there is no door on the stairwell. TB

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