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  1. #1
    Join Date
    Oct 2005
    Location
    Hockessin,DE
    Posts
    88
    What is the loss in efficiency when using a Bayvent or Chimney Vent kit? Would I be better off with a liner instead (aluminum or stainless)?

    I hear the loss with a Bayvent is about 2% from my contractor but one of the members here said its more like 10%.... and also that my heat-pump will be losing heat through the same as well...

    what's the collective opinion on this?

  2. #2
    Join Date
    Nov 2005
    Location
    Charlotte, N.C.
    Posts
    965
    YOUR LOSE IN EFFICIENCY WILL BE RELATIVLY LOW BUT YOUR FURNACE IS BEING USED AS A AUX HEAT SOURCE. IT SHOULD'NT AFFECT YOUR HP.

    TREY

  3. #3
    Join Date
    Mar 2004
    Location
    SE Michigan
    Posts
    18,208
    I believe the loss is 6-8%. You will no longer have an 80 AFUE furnace though. I was told this by a bryant rep. whos name I will keep quiet. Always run a chimney liner or you may suffer chimney damage and besides, you need one for the orphaned water heater anyway..unless it a direct vent.
    To put the world in order, we must first put the nation in order; to put the nation in order, we must put the family in order; to put the family in order, we must cultivate our personal life; and to cultivate our personal life, we must first set our hearts right.
    -- Confucius

  4. #4
    Join Date
    Oct 2005
    Location
    Hockessin,DE
    Posts
    88

    Thank you! this helped me greatly

    I told him I wanted to do the aluminum liner and not the Bayvent kit.

    Th 6-8% loss in efficiency would more than pay for the liner in the first year itself.

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