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    Lake Bum's Avatar
    Lake Bum Posts: 1, Reputation: 1
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    #1

    Dec 4, 2009, 07:47 PM
    How do I know what size blower motor tonage is on my furnace?
    Want to install new eguipment and need to know what the tonage is on the old ruud or rheem furnace model # UGAC125A?
    KC13's Avatar
    KC13 Posts: 2,556, Reputation: 99
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    #2

    Dec 4, 2009, 07:54 PM

    If the heating capacity of the furnace is 125 kbtuh, the blower drive should be at least 4 ton, possibly 5 ton.
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