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  1. #1
    Join Date
    Mar 2005
    Posts
    10

    Angry

    I have a Payne 90% efficiency furnace, model 398AAZ upflow that is approximately 15 yrs old. I've had a professional heating co. inform me that the heat exchanger is cracked and exhaust is being returned out of the burner assembly. I have smelled the odor myself and know the problem exists. Is there anything other than a crack in the heat exchanger that could cause the excess exhaust to be venting through the house? Such as an improperly vented terminal to outside?(which leaves excess exhaust in the chamber?) It has been explained to me as a KNOWN issue but I want to be CERTAIN before I opt for an entirely new furnace.

    Incidentally, any opinions on Rheem 90% efficency would be appreciated as that is the unit I'm considering.

  2. #2
    Join Date
    Mar 2004
    Location
    Grottoes VA
    Posts
    5,856
    Karst means cave. So, I search for caves.

  3. #3
    No mistaking that smell, you need a new one.
    Rheem is OK I guess.
    Hey cockroach, don't bug me!

    www.AskTheDiceman.com

    www.TheColdConspiracy.com

    www.Pennwood-HVAC.Com

    Bring Em Home....

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