That is a formula I received from Midco International on try to determine the temperature rise of the Midco UniPower V3 burner.
I'm trying to understand this myself.
Gas fired burner with combustion air fan producing 589 cfm. trying to find btu/hr.
scfm x 1.1 (T2-T1)/available heat= btu/hr
If available heat is T2-T1/100, is the number extrapolated the low fire btu/hr?