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Old 09-09-17, 05:21 PM   #3
AC_Hacker
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Quote:
Originally Posted by jeff5may View Post
I recently purchased a 2 ton outdoor unit for 50 bucks.
2-Tons is a pretty good size unit.

The really big pay-off comes from putting the coils in the ground or in water. Otherwise, over-sizing the HXs and using R290 would give you marginal improvement in efficiency.

With regards to your house, do you have any idea what your heat loss/gain is in max heating or max cooling?

-AC_Hacker
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