Convert Thermies (FR) to British Thermal Units (BTU)
Enter a value below to convert Thermies (FR) to British Thermal Units (BTU).
Conversion:
1 Thermies (FR) = 3965.6512426 British Thermal Units (BTU)
How to Convert Thermies (FR) to British Thermal Units (BTU)
1 thm = 3965.6512426 btu
1 btu = 0.00025216539197 thm
Example: convert 15 Thermies (FR) to British Thermal Units (BTU):
25 thm = 99141.281065 btu
Thermies (FR) to British Thermal Units (BTU) Conversion Table
| Thermies (FR) | British Thermal Units (BTU) |
|---|---|
| 0.01 thm | 39.656512426 btu |
| 0.1 thm | 396.56512426 btu |
| 1 thm | 3965.6512426 btu |
| 2 thm | 7931.3024852 btu |
| 3 thm | 11896.953728 btu |
| 5 thm | 19828.256213 btu |
| 10 thm | 39656.512426 btu |
| 20 thm | 79313.024852 btu |
| 50 thm | 198282.56213 btu |
| 100 thm | 396565.12426 btu |
| 1000 thm | 3965651.2426 btu |
Thermies (FR)
Definition
A thermie is a French unit of heat energy equal to 1,000 kilocalories, or approximately 4,184,000 joules. It was historically used in French engineering and heating systems.
History
The thermie was used in France and other French-speaking countries throughout the 20th century for industrial heating and energy calculations, before the widespread adoption of joules and kilowatt-hours.
Current use
The thermie is now largely obsolete but may still appear in older French engineering documentation, historical heating system specifications, and some regulatory texts.
British Thermal Units (BTU)
Definition
A British Thermal Unit (BTU) is an imperial unit of energy defined as the amount of heat required to raise the temperature of one pound of water by one degree Fahrenheit. It equals approximately 1,055.06 joules.
History
The BTU originated in the British imperial measurement system in the 19th century. Despite the global shift toward metric units, it remains entrenched in US, UK, and Canadian HVAC and energy industries.
Current use
BTUs are the standard unit for rating heating and cooling equipment (furnaces, air conditioners), measuring natural gas energy content, and comparing fuel efficiencies in North America.