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    cmar17's Avatar
    cmar17 Posts: 1, Reputation: 1
    New Member
    		  
    #1

    Oct 26, 2009, 06:05 PM
    Confirming Furnace size
    I am having a Gas Boiler installed, based on what I 've read I believe that my plumber is oversizing, the house is aprox 1800 sq ft and he mentioned 110,000 BTU's. How do I calculate/verify correct size for house?
    hvac1000's Avatar
    hvac1000 Posts: 14,540, Reputation: 435
    Heating & Air Conditioning Expert
    		  
    #2

    Oct 26, 2009, 06:14 PM
    Do a manual J to be sure of size.
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