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see British thermal unitBritish thermal unit,
abbr. Btu, unit for measuring heat quantity in the customary system of English units of measurement, equal to the amount of heat required to raise the temperature of one pound of water at its maximum density [which occurs at a temperature of 39.
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British thermal unit

The amount of heat required to raise the temperature of 1 pound of water by 1 degree Fahrenheit. Abbr. Btu.
References in periodicals archive ?
Whatever the details of the BTU tax, the claim that it will promote efficiency seems to be based on the undisputed fact that it will make energy more expensive.
To determine the potential direct impact of the proposed BTU energy tax on your city or town, one needs to convert gallons of fuel purchased or kilowatt-hours of electricity to BTUs (See BTU Conversion chart).
L4: AC 9000 BTU / h = 9 pcs; AC 12000 BTU / h = 13 pc;
DeLonghi has improved compressors and components in its six Pinguino portables, permitting increased capacities between 8,500 and 13,000 BTUs.
Five De Luxe models range from 5,200 to 17,500 BTUs.
Peter Tallian, chief operating officer of BTU, will be the general manager of the BTU International division.
The line will be from 9,000 to 24,000 BTUs, with new chassis on mid-sized models.
BTU Power and its affiliates (collectively the BTU Group) acquire operating assets and develop projects in the mid- and downstream segments of the energy value chain.
BTU is a consumer owned electric utility serving 45,000 customers in Brazos, Burleson and Robertson counties in central Texas.
BTU's membership in SECAP emphasizes our commitment to the Semiconductor Packaging market," commented Tim Gillis, Director of Marketing at BTU International.
We are very pleased to leverage the technology to benefit BTU and the solar energy industry, as we share a commitment to innovation and greater sustainability.