Will blocking off the air conditioner returns and registers in the winter make a difference?
I have a 1992 4,500-square-foot Colonial in NH: It has central air with the handler in the unconditioned attic. Will blocking off the returns and registers in the winter make a difference?
We usually use about 1200-1500 gal of oil which I don't think is too bad. The upstairs bedrooms however seem cool and drafty.
Posted Mon, 11/04/2013 - 13:01
Edited Mon, 11/04/2013 - 13:11
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