Btu
abbreviation /ˌbiː tiː ˈjuː/
/ˌbiː tiː ˈjuː/
(also BTU)
- British thermal unit(the amount of heat needed to raise one pound of water by one degree Fahrenheit, equal to 1.055 x 103 joules)
- World energy use in 1970 was about 200 quadrillion Btu.