Calorific Value 3 : Amount of heat produced by the complete combustion of a unit weight of fuel. Usually expressed in calories per gram or BTU's per pound, the latter being numerically 1.8 times the former
EESiFlo North America, Terminology and Glossary: Fuel and Oil Terms, Pennsylvania, USA 2002. flowmeterdirectory.com/flowmeter_terminology, (Oil - Amer) {564}