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  1. #1
    Join Date
    Apr 2006
    Location
    Denver
    Posts
    7

    Cool down a to hot furnace

    Hello, My friend has a problem, his natural gas furnace is to big and short cycles. He just bought the house and the furnace is a newer , cheaper 80% eff. He would like to remove 1 or 2 of the orifices in the burner to reduce the heat output. The orifice would be replaced with a plug that threads in. He knows this will void the warrantee and doesnt care and doesnt want to buy a new furnace right now but also doesnt want to burn the house down or create a furnace that never comes up to temp. Anyone ever do this? Is this a stupid idea? If so why is it a bad idea?

    Thanks in advance...

  2. #2
    Join Date
    Dec 2007
    Location
    Ohio
    Posts
    2,876
    Quote Originally Posted by washford View Post
    Hello, My friend has a problem, his natural gas furnace is to big and short cycles. He just bought the house and the furnace is a newer , cheaper 80% eff. He would like to remove 1 or 2 of the orifices in the burner to reduce the heat output. The orifice would be replaced with a plug that threads in. He knows this will void the warrantee and doesnt care and doesnt want to buy a new furnace right now but also doesnt want to burn the house down or create a furnace that never comes up to temp. Anyone ever do this? Is this a stupid idea? If so why is it a bad idea?

    Thanks in advance...


    Tell him to call a professional....he's gonna burn down his home screwing with things like that. The fact that you are even asking the question means he has no idea what he is doing.

    There is no DIY on this site and there isn't a professional member on here who would tell you this is a good idea....have him call a pro and have the entire system evaluated before he kills someone
    I need a new signature.....

  3. #3
    Join Date
    Apr 2006
    Location
    Denver
    Posts
    7
    He already called a professional. The "professional" charged him $180 to "fix" the problem and then said he needed a new furnace after the "fix" didnt work.

  4. #4
    Join Date
    Dec 2007
    Location
    Ohio
    Posts
    2,876
    Quote Originally Posted by washford View Post
    He already called a professional. The "professional" charged him $180 to "fix" the problem and then said he needed a new furnace after the "fix" didnt work.
    Then that wasn't a professional....LOL

    What part of the country is he in??
    I need a new signature.....

  5. #5
    Join Date
    Apr 2006
    Location
    Denver
    Posts
    7
    colorado, central denver area

  6. #6
    Join Date
    Jan 2004
    Location
    PA
    Posts
    68,795
    Its a stupid idea.

    And can cause other service issues down the road.
    One of them being condensation in the flue pipe and chimney.
    Poor combustion leading to soot, and excessive CO production.
    Contractor locator map

    How-to-apply-for-Professional

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

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