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    genehern's Avatar
    genehern Posts: 2, Reputation: 1
    New Member
    		  
    #1

    Feb 9, 2008, 09:32 AM
    What is the advantage of R8 over R4.2 ducting insulation
    When upgrading my furnace is the replacement of all of the ducting from R4.2 to R8, if duct size is adequate, worthwhile? Also any thoughts on the quality of 3 ton 95% Goodman furnaces?
    Thanks again
    hvac1000's Avatar
    hvac1000 Posts: 14,540, Reputation: 435
    Heating & Air Conditioning Expert
    		  
    #2

    Feb 9, 2008, 06:46 PM
    In some areas the upgrade of the duct is required for energy savings.
    It will cost first but there will be additional savings so if you can afford it I would do it.
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