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Old 05-30-2008, 11:54 AM   #2 (permalink)
Master EcoModder
Join Date: Apr 2008
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Pushrod - '02 Chevrolet Cavalier
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It depends on how many people are running around your house at any given time of day. If you're single and live alone, I'd think the window unit would be cheaper to run. You only need the room that you're in to be cool. At night, you can only sleep in one place. No sense in cooling the whole house, especially when heat rises to higher floors.
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