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  1. 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 …

  2. 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 …

  3. BTU Business Travel Unlimited

    I have been working with BTU for years and plan all my trips with the Semperit support team on site. I particularly appreciate the rapid processing of my enquiries and, in the event of …

  4. Home | Bryan Texas Utilities

    BTU Earns National Recognition for Updated Website BTU's website update won the Award of Excellence in Web & Social Media for like-sized utilities.

  5. 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.

  6. 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.

  7. 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 …

  8. 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) …

  9. 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 …

  10. 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 …