Posted by George Marsh on March 29, 2014 at 06:26:50 from (50.127.10.235):
In Reply to: Re: Heat pumps posted by MarkB_MI on March 29, 2014 at 05:14:34:
MarkB_MI, The COP may approach one, but does that include the defrost cycles? I think not. Many times, the blower motor isn't factored in to the COP or SEERs. I proved to the 78 year old man that it was cheaper to go straight resistance heat during the sub zero winter months and he saved $250. He is convinced. I really don't care if anyone here is.
Our Indiana temps are back to where he can go use his heat pump. It will be interesting to see how much lower his next month's electric bill is than mine.
There is also proof that using the heat pump in extreme conditions shortens the life of compressor. I could post sources, but then some would say that isn't proof enough for them.
I still say, heat pumps in my area will not beat the snot out of straight resistance heat in sub zero, geo will.
The investment will never pay for itself, if you have a super insulated home. And it only works well in the spring and fall months where I live.
I'm not saying it won't work in Florida or places south of me.
I know of a man who put a heat pump at his lake home. Moisture would come off the lake, causing HP to ice up real fast. Man wasn't very happy. HP was in defrost mode all the time.
I'll post back when next month's bills come out. George
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