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    jimmy1's Avatar
    jimmy1 Posts: 1, Reputation: 1
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    #1

    Mar 2, 2007, 06:20 PM
    Air conditioning
    How do I calculate how many tons of A/C I need to cool a house. I don't want the contractor to rip me off
    T-Top's Avatar
    T-Top Posts: 1,871, Reputation: 100
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    #2

    Mar 2, 2007, 07:12 PM
    If you don't trust him why use him. If I had a dime for every home owner that told me the size unit that they need I would be rich. Its called a load calculation. It will tell you the size of heat or air you need for your area.(How many windows,R- value in the walls and attic,square feet of the home,so on and so on... )
    T-Top's Avatar
    T-Top Posts: 1,871, Reputation: 100
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    #3

    Mar 2, 2007, 08:16 PM
    Sorry jimmy1 for getting on the soap box. Rule of thumb and not accurate .08 to 1 cfm per square foot, depends on location.
    MCC's Avatar
    MCC Posts: 3, Reputation: 1
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    #4

    Mar 3, 2007, 04:38 PM
    1 ton of refrigeration will take care of 500 sq ft. with 8 ft ceilings
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