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View Full Version : How do you size a home for ac


torreshvac
Jun 25, 2006, 09:55 AM
I know how to use the formula of .40 per square foot on a regular home and .45 per square foot on a drafty home for heat, but what formula do you use to calculate air conditioning per square feet. Also how do you know how many cfm's you need per room when you are calculating what size boot you need per room?
I do know that for every ton of air would be 400 cfm
And I do know what cfm's each size flex puts out
Can someone e-mail me and school me on some of this... [email protected]

caibuadday
Jun 27, 2006, 04:46 PM
i know how to use the formula of .40 per square foot on a regular home and .45 per square foot on a drafty home for heat, but what formula do you use to calculate air conditioning per square feet. also how do you know how many cfm's you need per room when you are calculating what size boot you need per room?
i do know that for every ton of air would be 400 cfm
and i do know what cfm's each size flex puts out
can someone e-mail me and school me on some of [email protected]/ .45 are just ball park estimate, Google around and you will find afew sites that offer to do cooling cal for afee