Outdoor Wood Furnace Info
All-Purpose OWF Discussions => General Outdoor Furnace Discussion => Topic started by: abarton on January 12, 2012, 05:58:51 PM
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There has been a lot of discussion about what is my cfm or btu output of my coil so here are the formulas: If cfm is known CFMx(T2-T1)x 1.08= BTU T2=temperature of air leaving the coil T1=temperature of air entering. If BTU is known the formula works backwards BTU/1.08x(T2-T1)=cfm Note that these formulas are for air flow measurements only.