Originally Posted By: Dignan
I have to imagine that reheating a place in the winter after you've been out must take more energy
OK, one more time. Maybe I can say this better than I did before. Heating or re-heating, what you are doing is replacing the heat lost to the outside. The more heat you lose, the more you have to replace. And, as Peter said, the greater the temperature difference between inside and outside, the more heat you lose.

'Nuff said!

tanstaafl.
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