Quote:
Originally Posted by tuccillo
It doesn't work that way. In FL, Manual J calculations are required and systems must be sized accordingly. The next size up is 1/2 ton which would be 15% larger when going from 3 to 3.5 tons. Regardless, I just looked up 2 very similar houses, one framed and one block, in my area and the Manual J heat load was 4% higher in the block home, which had 4% more square footage under air.
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Interesting
How about trying an IR meter on the walls