cfm

EDIT: I just noticed there's a GM9C800804BN -- which is a 1600 CFM version of the same 80 Kbtu, 80% afue, 17.5" wide cabinet!! So I guess my problem is solved! (I changed 1200->1600 below) ---original post--- Looking for advice on selection of a width for Furnace+Coil pair -- 17.5" or 24.5" --...

I've been investigating the winterizing requirements for a home sprinkler system. There are many articles referencing CFM and PSI. What seems to be often missing is how much CFM flow is required and what are the maximum and minimum PSI requirements. For 1" polyethylene main pipe 50 PSI seems to...