Therm to Btu (mean) conversion

There is more than one type of Therm. Please use the appropriate variation from the list below.

  1. Therms (EC) to Btu (mean)

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  2. Therms (US) to Btu (mean)

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  3. Therms (UK) to Btu (mean)

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Therm

Btu (mean)

One BTU is the energy required to heat 1 avoirdupois pound of liquid water by 1 degree Fahrenheit, at a pressure of one atmosphere. The Btu (mean) uses a result averaged over water temperatures 0 to 100 °C (32.0 to 212.0 °F) which is approx. 1055.87 J