Therm - Definition - Law Dictionary Home Dictionary Definition therm

Definition :

Therm, a hundred thousand British thermal units. A British thermal unit is the amount of heat required to raise 1 lb. of water 1 degree Fahrenheit [Gas Regulation Act, 1920 (10 & 11 Geo. 5, c. 28), s. 1, sub-ss. (2) and *7)]. The Gas Undertakings Act, 1920 to 1934, provide for orders by the Board of Trade permitting gas undertakings to sell gas at a specified maximum rate per therm. See GAS.