Definitions for "Heating Value"
The amount of heat developed by the complete combustion of a unit quantity of a material. Heating values for natural gas are usually expressed as the Btu per Cf of gas at designated conditions (temperature and pressure) and either on the dry or water saturated basis.
The average number of British thermal units per unit of weight or volume of a fuel (e.g. Btus per cubic foot of natural gas) as determined from tests of fuel samples.
The quantity of heat released by a fuel through complete combustion. It is commonly expressed in Btu per lb, per gallon, or cu-ft.
The maximum amount of energy that is available from burning a substance.