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  1. #1

    Square hole expose heat exchanger on furnace

    Hello..

    Working on a 105k btu furnace, noticed a square hole cut into the heat exchanger. Remove square cover and a man made hole was exposing the heat exchanger. Is this normal? Is this some kind of repair?

  2. #2
    Join Date
    Feb 2010
    Location
    NE Alabama
    Posts
    301
    Sounds like a hole for inspection or repair and as long as it's tight it no biggie

  3. #3
    The hole measures 12x12 . I was told the heater is oversized and the ductwork is only 8x8,
    Someone cut the hole to allow the heat exchanger to cool down. Is this possible?

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