BRITISH THERMAL UNIT (BTU) is the amount of heat required to increase the temperature of one pound of water one-degree Fahrenheit. A Btu is used as a common measure of heating value for different fuels. Prices of different fuels and their units of measure (dollars per barrel of crude, dollars per ton of coal, cents per gallon of gasoline, dollars per thousand cubic feet of natural gas) can be easily compared when expressed as dollars and cents per million Btus.
Barry Goldsmith
| APA | Barry Goldsmith. (2010). british thermal unit (btu). Retrieved September 27, 2026, from http://smartdefine.org/british_thermal_unit_(btu)/definitions/1148975 |
| Chicago | Barry Goldsmith. 2010. "british thermal unit (btu)" http://smartdefine.org/british_thermal_unit_(btu)/definitions/1148975 (accessed September 27, 2026). |
| Harvard | Barry Goldsmith 2010, british thermal unit (btu), Smart Define, viewed 27 September, 2026, <http://smartdefine.org/british_thermal_unit_(btu)/definitions/1148975>. |
| MLA | Barry Goldsmith. "british thermal unit (btu)" 21 October 2010. Web. 27 September 2026. <http://smartdefine.org/british_thermal_unit_(btu)/definitions/1148975> |