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  1. #1
    Join Date
    Jul 2003
    Posts
    55

    Hmm

    My parents have Goodman GMP075-3 up flow furnace. Furnace sets in a hall closet in the middle of the house. Under it is where they originally cut the drywall for the return when the house was built.Filter sets in the inside the base of the unit. They want to replace the 1954 return grill. Size now is 31 3/4 by 9 3/4. I would like to know what the right size of grill I would need for proper return. 31 3/4 wide is as far as I could go but I can go bigger then 9 3/4 if I need to. Thanks, jmb

    [Edited by jmb on 07-09-2005 at 10:51 AM]

  2. #2
    Join Date
    Apr 2003
    Posts
    6,383
    Would depend on a lot of factors. But I would go with a 20x25, if it was a filter grill.

    And no matter what you end up with, you need to make sure the unit is still operating with-in the unit's specifications!

    And have the HE inspected!


    [Edited by jultzya on 07-09-2005 at 02:43 AM]

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