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Fordguy64 · 06-21-12, 05:56 PM

i understand the back draft damper.. there are places that sell them pretty cheap for none insulated ones.. i just figured i could go up there when it starts getting cool out (no longer use house fan) and put some insulation over the house fan just to block it off for the winter..

06-21-12, 05:56 PM	#3
Fordguy64 Journeyman EcoRenovator Join Date: Oct 2011 Location: Cincinnati ohio Posts: 338 Thanks: 40 Thanked 35 Times in 31 Posts	i understand the back draft damper.. there are places that sell them pretty cheap for none insulated ones.. i just figured i could go up there when it starts getting cool out (no longer use house fan) and put some insulation over the house fan just to block it off for the winter..