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How Much Home Floor Area Will A 4 Ton Airconditioner Service?

normal load for a well insulated home is 500sq. ft. of floor space per ton (12,000btu) of AC. thus 500sq ft X 4 tons (48,000btu) = 2,000sq. ft.

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  1. dagreyfo
    November 20th, 2009 at 12:57 | #1

    The best way is to hire a contractor and run a manual J assesment, you will get the most accurate result that way. Most people figure that for every 500sq feet you add a ton, so in your case up to 2000sq feet.

  2. Joe & Jessica
    November 20th, 2009 at 18:06 | #2

    We have a 3000 square foot first floor and a 5 ton AC so that is about 600 square feet per ton. So 4 tons would be 2400 square feet.

  3. oil field trash
    November 20th, 2009 at 21:38 | #3

    Easily a 2,500 sq ft…. I have a 4 ton and i was told at the time that it would be well adequate for my house but even up to and a little beyond a 2,500 sq ft.

  4. norman77
    November 20th, 2009 at 22:00 | #4

    700 is a good rule, and I’d go the 700 x 4 if I knew all other things were balanced. In your case without more detail, I’d suggest a 4 ton would be most efficient at 2000 sq. ft. or less.
    Rev. Steven
    I’ve got a 3.5 in 1800 sq. ft, new house, and want to upgrade.

  5. ever1wol
    November 21st, 2009 at 02:04 | #5

    a good rule of thumb, if all conditions r right ( good insulation, thermail windows, fairly new construction) we figure 700 sq ft to the ton.
    lic. gen. contractor

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