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    HarryP's Avatar
    HarryP Posts: 5, Reputation: 1
    New Member
    		  
    #1

    Nov 17, 2008, 08:54 AM
    Coleman 7900 Series Gas Furnace
    I have a Coleman Presidential 3 7900 series Gas Furnace that has 3 openings on the front panels for return air.
    However, when I bought this mobile home, there were no filters on any of the 3 return air vents on the front panels.

    My question is:
    Do I need 3 filters for this unit, and if so where do I get them. It apprears that the filters will have to be 19 inches wide to cover the openings.
    Appreciate your answer to this question.
    HarryP
    dac122's Avatar
    dac122 Posts: 463, Reputation: 17
    Full Member
    		  
    #2

    Nov 17, 2008, 10:24 AM

    Yes, you need filters for sure.

    You could re-duct things with a return plenum and one common filter housing, but it's a little hard visualizing without seeing it. Can you post some pics?

    Whatever you do I suggest you clean the unit after you get filter(s) in place as it is probably filthy inside. If you have an A/C coil I'll bet its pretty dirty.
    HarryP's Avatar
    HarryP Posts: 5, Reputation: 1
    New Member
    		  
    #3

    Nov 18, 2008, 05:11 PM
    I had it cleaned the other day.

    1.Do you know where I can purchase the filters for this furnace?

    2. Do you know what filter I should ask for?

    Thanks,
    HarryP
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