The quantity of heat that can be liberated from one pound of coal or oil measured in BTU's.
The ratio of energy to volume measured in Megajoules per cubic meter (MJ/m3) which for a gas is measured and expressed under standard conditions of temperature and pressure.
The heating potential of a fuel
The ratio of energy to volume measured in mega joules per cubic meter (MJ/m).
The number of heat units liberated per unit of quantity of a fuel burned in a calorimeter under prescribed conditions.
is the energy content of a fuel measured as the heat released on complete combustion.
amount of heat released by the complete combustion of unit weight of fuel; usually expressed in calories per gram or British Thermal Unit (BTU) per pound