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    AHamilton03's Avatar
    AHamilton03 Posts: 1, Reputation: 1
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    #1

    Jun 18, 2012, 03:26 PM
    What seer rating do I need
    I am looking to replace the AC and furnace in my 1993 home. 4,000 square feet, open floor plan, no basement. What seer rated AC unit would be best and what tonnage would work best for my house?
    hvac1000's Avatar
    hvac1000 Posts: 14,540, Reputation: 435
    Heating & Air Conditioning Expert
    		  
    #2

    Jun 18, 2012, 04:05 PM
    Quote Originally Posted by AHamilton03 View Post
    I am looking to replace the AC and furnace in my 1993 home. 4,000 square feet, open floor plan, no basement. What seer rated AC unit would be best and what tonnage would work best for my house?
    To do the calculations correctly you will need a ON SITE survey completed by a knowledgeable HVAC company. Then after that is done they will have to use your utility costs per KW in order to find out what would be the best SEER for your application. Sometimes you can buy a unit that is extremely energy efficient but it will take 20 years of savings to pay for the upgrade and by then the unit is shot so you will see no advantage. Enjoy your new units.
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