British Thermal Unit (Noun)
Meaning
A unit of heat equal to the amount of heat required to raise one pound of water one degree Fahrenheit at one atmosphere pressure; equivalent to 251.997 calories.
Classification
Nouns denoting quantities and units of measure.
Examples
- The amount of energy a home heater expends can be measured in terms of British Thermal Units.
- Natural gas meters in some countries typically record the energy delivered in British thermal units.
- This rating for central heating units and water heaters is measured in British Thermal Units per hour.
- Typically British Thermal Units measure heat content for comparing energy prices in real time for electricity or gas usage.
- These fuel cells would ultimately deliver up to about twenty two percent efficiency at generating power using only ten point one percent in terms of fuel's available energy per British thermal unit.