FloAire Indirect Fired Heater - Manual (Page 27)

27
Orifice and Gas Consumption Chart
Furnace
Size
No. of
Orifices
Natural Gas
Orifice Drill Size
Propane Gas Orifice
Drill Size
Natural Gas
CFH
Propane Gas
CFH
200 3 23 40 192.3 80
350 6 27 43 336.5 140
400 6 23 40 384.6 160