Heat content (fuel)
In the U.S. energy industry, heat content is the amount of heat energy that will be released by combustion of a unit quantity of a fuel or by transformation of another energy form. For example, fossil fuels are rated by heat content, with a distinction made between gross heat content and net heat content The term is also sometimes applied to other energy forms, such as heat content of a kilowatt-hour of electricity or a pound of steam.