. "Energy Value"@en . . . . "https://standards.buildingsmart.org/IFC/DEV/IFC4_3/RC1/HTML/link/ifcheatingvaluemeasure.htm"^^ . . "https://en.wikipedia.org/wiki/Heat_of_combustion"^^ . "http://dbpedia.org/resource/Specific_energy"^^ . . . "The heating value (or energy value or calorific value) of a substance, usually a fuel or food (see food energy), is the amount of heat released during the combustion of a specified amount of it. " . . "Heating Value"@en . . . . . . . "Calorific Value"@en . . . .