Heat Content of Common Fuels

Fuel	Quantity	BTU
Electricity	KWH	3,412
Natural Gas	Therm	100,000
Natural Gas (varies depending on gas composition)	CCF	91,000
Propane	gal	93,000
Fuel Oil	gal	142,000
Wood - air dryed -- variable depending on moisture content and spicies	lb	8,000
Pellets	lb	8,250
Coal	lb	14,000