Check out some similar questions!

desantisdj · Jul 30, 2008, 02:57 PM

Hello,
How many BTU or tons's of a/c is required to cool a 1080 sq foot house?

progunr · Jul 30, 2008, 02:59 PM

Here is a handy link that will help you with this problem.

I've used it a couple of times myself.

Air Conditioner BTU Calculator - Goodhousekeeping.com

Diane Carol · Jul 30, 2008, 03:05 PM

I think you already knew the answer... or at least, knew where to find it.
A Google search... "btu's to cool 1000 sq. ft of house"... gave me this:

Look for this size air conditioner

100 to 150 square feet

5,000 BTUs

150 to 250 square feet 6,000 BTUs

250 to 300 square feet 7,000 BTUs

300 to 350 square feet 8,000 BTUs

350 to 400 square feet 9,000 BTUs

400 to 450 square feet 10,000 BTUs

450 to 550 square feet 12,000 BTUs

550 to 700 square feet 14,000 BTUs

700 to 1,000 square feet 18,000 BTUs

1,000 to 1 400 square feet 24,000 BTU's

hvac1000 · Jul 30, 2008, 07:17 PM

Originally Posted by Diane Carol

I think you already knew the answer.......or at least, knew where to find it.
A Google seach..."btu's to cool 1000 sq. ft of house".....gave me this:

Look for this size air conditioner

100 to 150 square feet

5,000 BTUs

150 to 250 square feet 6,000 BTUs

250 to 300 square feet 7,000 BTUs

300 to 350 square feet 8,000 BTUs

350 to 400 square feet 9,000 BTUs

400 to 450 square feet 10,000 BTUs

450 to 550 square feet 12,000 BTUs

550 to 700 square feet 14,000 BTUs

700 to 1,000 square feet 18,000 BTUs

1,000 to 1 400 square feet 24,000 BTU's

You really need to do a Manual J to be accurate. Windows, insulation,sun side,ETC. are all needed to be accurate. A guess might work but if it is to large or to small it will never work correctly.

Just for fun try this diagram.

taylor_d · Jul 5, 2011, 04:09 PM

More accurate, easier on the eyes than the Good Housekeeping, plus gives a recommended unit: Air Conditioner BTU Calculator