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 …
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British thermal units (Btu) - U.S. Energy Information Administration …
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 liquid water by 1° …
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 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.
British thermal unit (BTU) | Britannica
British thermal unit (BTU), a measure of the quantity of heat, defined since 1956 as approximately equal to 1,055 joules, or 252 gram calories. It was defined formerly as the amount of heat …
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) …
What Is a BTU? The British Thermal Unit Explained
A BTU, or British Thermal Unit, is a standard unit of measurement that quantifies the amount of heat energy required to raise the temperature of one pound of water by one degree Fahrenheit.
What Does BTU Mean? The Ultimate Guide to British Thermal …
Jun 24, 2025 · BTU stands for British Thermal Unit—a unit of energy measurement. Specifically, one BTU is the amount of heat required to raise the temperature of one pound of water by one …
What is a BTU? HVAC Guide to British Thermal Units
Wondering 'What is a BTU'? This HVAC guide explains British Thermal Units, why they're crucial for your heating & cooling system, sizing, and energy efficiency.