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  1. #1
    Join Date
    Jul 2006
    Location
    Lancaster,Ohio
    Posts
    464

    Cool Replacing a Heat Exchanger

    Would anybody in there right mind replace a primary heat exchanger in a 1993 Goodman Model # GMPN1004 REV A 92%: Serial 98056181 7A. The Furnace is clean and well maintained and the customer is demanding two more years of service as he is planning to sale the home!
    IcyFlame

  2. #2
    Join Date
    Aug 2001
    Location
    Pavilion, NY
    Posts
    2,121
    The short answer is,,,,, If I am selling my home in 2 years and have to spend several thousand dollars additional to replace the unit, will I recoup my investment in the sale as the furnace is updated and more attractive to the buyer? Well kitchens and bathrooms sell homes,,, if I took the $3000 and updated my appliances or bathroom I would recoup my investment better spending my money that route.. So yes I can see that happening. If the heat exchanger is under warranty and the furnace is otherwise in good condition then sure.....honest answer
    ...

  3. #3
    Join Date
    Dec 2012
    Posts
    6
    Replacing a heat exchanger is a lot cheaper than replacing the unit especially in a well maintained unit.

  4. #4
    Join Date
    Apr 2012
    Location
    winnipeg
    Posts
    1,330
    I have done it.... don't really like it ....customers money
    it was working.... played with it.... now its broke.... whats the going hourly rate for HVAC repair

  5. #5
    Join Date
    Nov 2009
    Location
    Kansas City
    Posts
    124
    I usually bid it $500 less than a new unit...even if it's under warranty

  6. #6
    Join Date
    Jul 2010
    Location
    wisconsin
    Posts
    270
    Quote Originally Posted by Bsmith816 View Post
    I usually bid it $500 less than a new unit...even if it's under warranty
    This is wise, at least you make your money out of it then.

  7. #7
    Join Date
    Jan 2007
    Location
    N.E. Ok.
    Posts
    1,363
    Easy money for sure.

  8. #8
    Join Date
    Jan 2013
    Location
    California
    Posts
    87
    I've only done them in warranty - if it was OUR install. Otherwise it's too much of a pain, plus one has already cracked. The next one will too, and again, and again, until you fix the reason for failure. High static anyone? Going by age of the furnace, I've noticed the tubular style HX typically fails at a younger age than a serpentine or clamshell. Unless it's a stainless steel Amana...those are darn near bulletproof.

  9. #9
    Join Date
    Jul 2006
    Location
    Lancaster,Ohio
    Posts
    464
    Thanks for the responses, I was kind of hoping that you all was going to talk me out of it, but it is the customers money and no ones life is being threaten, what else would I have to do in those four hours, lol
    IcyFlame

  10. #10
    Join Date
    Jul 2009
    Location
    Columbia, MD
    Posts
    3,834
    low airflow, underfired, and lack of post purge. i see more failures because of 2 & 3.

    The answer to your question is "yes"

  11. #11
    Join Date
    Jun 2006
    Location
    SW MO.
    Posts
    5,201
    That hx is under warranty, so he should only be paying labor.

  12. #12
    Join Date
    May 2012
    Location
    Upper Michigan
    Posts
    3,588
    I think that model was known to have bad rivets from the factory so it's under warranty.

  13. #13
    Join Date
    Aug 2012
    Location
    Illinois
    Posts
    43
    Yes, I would do it. Critters and birds cause more CO problems than heat exchangers anyway. Sometimes you do what the customer wants. They will be safer than if nothing was done about the heat exchanger.

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