Size if return vent

08-13-2012, 01:55 PM	#1
ey218 Newbie   Join Date: Aug 2012 Posts: 11	Size if return vent I opened my wall in my garage to find a return without an insulated pipe. I have to move it any anyway to open a door. Since its an outside wall, would you run 6" vent pipe, insulate and attach to existing main return line? Thanks.

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08-13-2012, 04:41 PM	#2
Marty S. Member   Join Date: Oct 2009 Location: Nebraska Posts: 2,298	Size if return vent What does it serve? A tiny 8x8 room with a 4" supply could get by with a 6" return. Anything bigger and I'd want at least an 8".