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re: How to size HVAC for home addition. Is my current model big enough?

Posted on 4/30/21 at 1:23 pm to
Posted by junkfunky
Member since Jan 2011
33962 posts
Posted on 4/30/21 at 1:23 pm to
(2500ft²*9ft)/1600cfm = 14.0625 minutes

60/14.0625 = 4.267 cycles per hour

(3100ft²*9ft)/1600cfm = 17.4375 minutes

60/17.4375 = 3.441 cycles per hour

4 is typically considered minimum.
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