Quote:
Originally Posted by dremd
I've heard that the average car's A/C system is powerful enough to cool a normal 2000 square foot home in Atlanta.
Might look in to a variable displacement compressor (Love mine!) before going electric.
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I have a variable displacement compressor. However mine is mechanically controlled and resource hog. Some of the more advanced units are electronic and more efficient. I had a standard system in my old nissan truck that was more efficient because it rewarded the judicious a/c user with intermittent cycling. MY VDC doesn't cycle and never seems to change the amount of power necessary to provide the minimum amount of cooling. I tried setting the fan to low and different temp settings to no avail the FE was all the same. The temp control on my car merely mixes hot(drawn from the heater coil) and cool air together causing increased loss of eff. I find that manually cycling the compressor does yield increased FE. This thing siphons off a serious amount of power I est. 8-10hp.