Gas-Fired Duct Furnace Furnace Type Power Vented Separated Combustion Heating Capacity Input 100 000 BtuH Heating Capacity Output 80 000 BtuH Air Temperature Rise 30 Degrees F Required Air Flow 822 cfm Service Access Location Bottom Overall Height 36 in Overall Width 17 7/8 in Overall Depth 40 in Gas Connection Size 1/2 in Gas Connection Type Male NPT Air Flow 2 469 cfm Air Flow @ 65(F) Rise 1 100 cfm Air Flow @ 80(F) Rise 1 000 cfm Burner Air Inlet Size 5 in