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Old 09-05-2008, 07:19 PM
Rock Dog Rock Dog is offline
Cruise Moab Committee
 
Join Date: Oct 2005
Location: in a house
Posts: 1,078
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I put in my own replacement windows, Foam insulated the heck out of the openings. I went from 1968 aluminum frame single pane windows to vinyl double pane windows and see a big difference.. The funace does not run as often either...

Chances are it is not the windows themselves, but a lack of insulation around the windows.... You could always do the heat lamp test to see if the windows (the glass) is up to snuff.
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