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  1. #1
    Join Date
    Sep 2009
    Location
    Wisconsin
    Posts
    13

    Heat Exchanger Good?

    How would a homeowner know if their Heat Exchanger has gone bad (a.k.a. Cracked)??

    I have a 26 year old furnace. Still works fine.

  2. #2
    Join Date
    Dec 2007
    Posts
    4,718
    call a professional to check it.
    it needs to be inspected, not really a way for the homeowner to know.

  3. #3
    Join Date
    Sep 2002
    Location
    I don't know
    Posts
    2,905
    In most cases, it's impossible to determine the integrity of a heat exchanger without pulling the blower and burners. (DO NOT EVEN ATTEMPT!) It's possible to see approximetely 1/3rd of the heat exchanger on natural draft furnaces without taking anything apart. (aside from removing the cover)

    You should get it checked every year.

    The likelyhood of finding cracks in a 26 year old unit is extremely high - plan on getting it replaced.
    General public's attitude towards our energy predicament: "I reject the reality of finite resource depletion and substitute it with my own; energy is infinite, we just need an alternative storage medium to run the cars on. The economy can grow indefinitely - we just need to "green" everything! Technology is energy! Peak what?"

  4. #4
    Join Date
    Sep 2009
    Location
    Tucson, AZ
    Posts
    4
    Quote Originally Posted by Tony49837 View Post
    How would a homeowner know if their Heat Exchanger has gone bad (a.k.a. Cracked)??

    I have a 26 year old furnace. Still works fine.
    26 years old is WAY up there in age for a furnace. There is a very high probability of a heat exchanger crack or other type of dangerous situation with your furnace. (Gas flex to the furnace may even be unsafe) Contact a professional to do a thorough inspection on the unit.

  5. #5
    Join Date
    Dec 2002
    Location
    SouthEast NC ICW & Piedmont Foothills
    Posts
    7,635
    buy a canary and put the cage near a supply duct

    if there are any peta members ...........KMA!!!
    It`s better to be silent and thought the fool; than speak and remove all doubt.

  6. #6
    Join Date
    Jan 2004
    Location
    Lancaster PA
    Posts
    68,332
    Have your heat exchanger inspected.

    At 26 years. Its served you well though. Might be time to check into replacement even if its not cracked or burned through.
    Contractor locator map

    How-to-apply-for-Professional

    How many times must one fix something before it is fixed?

  7. #7
    Join Date
    Sep 2009
    Location
    Wisconsin
    Posts
    13
    Quote Originally Posted by beenthere View Post
    Have your heat exchanger inspected.

    At 26 years. Its served you well though. Might be time to check into replacement even if its not cracked or burned through.
    I have a replacement scheduled to be installed next month. A new Bryant 355CAV with the Evolution Control.

    Sounds like I'm making the right decision even if my old unit still works.

  8. #8
    Join Date
    Sep 2002
    Location
    Northeast Ohio
    Posts
    4,843
    You will pick up a minimum 5-6% operating efficiency over your old DMO, have piece of mind and a nice new warranty. Win win win.
    A good HVAC tech knows how, an educated HVAC tech knows why!

    DEM


  9. #9
    Join Date
    Aug 2009
    Location
    Kansas City
    Posts
    258
    Quote Originally Posted by Tony49837 View Post
    I have a replacement scheduled to be installed next month. A new Bryant 355CAV with the Evolution Control.

    Sounds like I'm making the right decision even if my old unit still works.

    A cracked heat exchanger does not keep a furnace from working. It does have the potential for allowing Carbon Monoxide into the living space. 26 years old is a good life for a furnace.

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