British thermal unit - Wikipedia
The Btu should not be confused with the Board of Trade Unit (BTU), an obsolete UK synonym for kilowatt hour (1 kW⋅h or 3,412 Btu). The Btu is often used to express the conversion-efficiency …
British thermal units (Btu) - U.S. Energy Information Administration …
Dec 8, 2025 · British thermal unit (Btu) is a measure of the heat content of fuels or energy sources. One Btu is the quantity of heat required to raise the temperature of one pound of …
What Does BTU Stand for and Why Does It Matter? - Trane®
BTU stands for British Thermal Unit, a unit of measurement that shows just how much energy your heating or cooling unit uses to remove heat from your home within an hour.
What is BTU? Understanding British Thermal Units
Jun 18, 2025 · BTU's are a commonly used specification on heating and cooling systems. But what is BTU? We explain it in simple terms and provide calculators, conversion charts and more.
What Is a BTU? - HomeTips
May 3, 2025 · BTU, short for British Thermal Unit, is a standardized, basic measurement of energy for all heating and cooling appliances. It is a measure of how much heat (or cooling) …
Heater BTU Calculator
Dec 8, 2025 · Easy Heater BTU Calculator with formulas, examples, and simple explanation. Calculate the correct heater size in BTU/hr and Watts based on your room size and …
What Does BTU Stand For? - hvac.com
Feb 7, 2025 · BTU stands for British Thermal Unit. It is a unit of measurement that quantifies the amount of heat required to raise the temperature of one pound of water by one degree …
What is BTU and How Many Do I Need? • Ingrams Water & Air
A BTU is a unit of measurement of the amount of heat of energy sources, such as fuels. A BTU represents the amount of heat that is needed to raise the temperature of a pound of liquid …
Understanding BTU's: How Many You Need to Cool Your Home
Confused about BTU's? Learn how to calculate the correct BTU rating for your air conditioner to efficiently cool your home and save money on energy bills.
BRITISH THERMAL UNIT Definition & Meaning - Merriam-Webster
Despite its name, the British thermal unit, or BTU, may be more widely used in North America than in Britain. Air conditioners, furnaces, and stoves are generally rated by BTUs.