About Units

Btu: British Thermal Units (BTU) are a measure of heat energy. One BTU is defined as the amount of heat required to raise the temperature of one pound of water by one degree Fahrenheit. This unit is commonly used in the power, steam generation, and heating, ventilation, and air conditioning (HVAC) industries.

Therms: Therms are a unit of heat energy equal to 100,000 BTUs. This unit is commonly used to measure natural gas consumption. In the energy industry, therms are used to describe the energy content of natural gas and to bill for its consumption.