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Old 05-10-13, 12:47 AM   #4
AC_Hacker
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Quote:
Originally Posted by jlaw View Post
...I have a 3 ton 15 seer heat pump...
Do you know what the HSPF rating is on your heat pump?

The SEER rating better describes the cooling efficiency, while the HSPF better describes the Heating Seasonal Performance Factor.

Sometimes units with the same SEER ratings may have significantly different HSPF ratings.

-AC
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