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RobertSmalls · 02-23-11, 06:27 AM

A basic, 36"x66" double-pane Pella window goes for $225 at Lowe's. That would suggest $260 for SeriousWindows.

Hmm, R13 for $260, or R3 for $130? I'd have to do some math. What is the annual energy cost of a R3 window?

02-23-11, 06:27 AM	#10
RobertSmalls Journeyman EcoRenovator Join Date: May 2009 Location: Buffalo, NY Posts: 344 Thanks: 3 Thanked 17 Times in 15 Posts	A basic, 36"x66" double-pane Pella window goes for $225 at Lowe's. That would suggest $260 for SeriousWindows. Hmm, R13 for $260, or R3 for $130? I'd have to do some math. What is the annual energy cost of a R3 window?