Information AboutBtu |
| CATEGORIES ABOUT BRITISH THERMAL UNIT | |
| units of energy | |
| imperial units | |
| customary units in the united states | |
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A Btu is defined as the amount of heat required to raise the temperature of one Pound Avoirdupois of Water by one degree Fahrenheit . 143 Btu is required to melt a pound of ice. As is the case with the Calorie , several different definitions of the Btu exist, which are based on different water temperatures and therefore vary by about 0.5%: In the United States, the BTU is often used to describe the heat value of fuels, and the BTU per hour (often confusingly abbreviated to BTU) measures the heating and cooling power of a system (such as a barbecue grill). CONVERSIONS One BTU is approximately:
ASSOCIATED UNITS The BTU per hour (BTU/h) is the unit of power most commonly associated with the BTU.
A unit called the ''quad'' (short for Quadrillion ) is defined as 1015 BTU, which is about 1.055×1018 joules, and the '' Therm '' is defined in the United States and European Union as 100,000 BTU –but the U.S. uses the BTU59 °F whilst the EU uses the BTUIT. The BTU should not be confused with the Board Of Trade Unit (B.O.T.U.), which is a much larger quantity of energy. SEE ALSO EXTERNAL LINKS |
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