u can but is the most inefficient way to heat.

回答: 請教班長等HVAC高手little-landlord2012-08-18 08:21:58

u can but is the most inefficient way to heat, the $500 you save compare a regular condenser to a heat pump, it not worth it...

if you in northern states and using 100% aux heat in coldest month, can cost you $500-700 a month.

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