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Old 02-15-14, 03:14 PM   #12
NiHaoMike
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Quote:
Originally Posted by Servicetech View Post
A standard window AC would freeze up at outdoor temps below about 60. Not useable as a heat pump when simply put in the window backwards.
The whole unit is indoors, so it's cooling one part of the room while heating another. If you only need heat in one part of the room, it's always a win compared to resistance heat.
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