About Units

Kilowatt: The kilowatt (kW) is a unit of power equal to one thousand watts. It is commonly used to express the output power of engines and the power consumption of electric devices. For example, the power consumption of a typical household appliance such as a microwave oven is around 1 kilowatt.

Tons of refrigeration: A ton of refrigeration (RT) is a unit of power used to describe the heat-extraction capacity of air conditioning and refrigeration equipment. One ton of refrigeration is equal to the rate of heat transfer needed to freeze 1 ton (2000 pounds) of water at 0°C in 24 hours, equivalent to 12,000 BTU per hour or approximately 3.517 kilowatts.