DIY Home Repair Forum: HVAC
08-09-2010, 10:22 PM
How large should my furnace intake duct be?
I have a 2500 sq/ft single story home. I want to install a new furnace-AC unit. The system I want to install is a Rheem 125K BTU Furnace. My current intake (return) duct measures 7" X 20". ...