Convert British Thermal Units (BTU) to Thermies (FR)
Enter a value below to convert British Thermal Units (BTU) to Thermies (FR).
Conversion:
1 British Thermal Units (BTU) = 0.00025216539197 Thermies (FR)
How to Convert British Thermal Units (BTU) to Thermies (FR)
1 btu = 0.00025216539197 thm
1 thm = 3965.6512426 btu
Example: convert 15 British Thermal Units (BTU) to Thermies (FR):
25 btu = 0.0063041347992 thm
British Thermal Units (BTU) to Thermies (FR) Conversion Table
| British Thermal Units (BTU) | Thermies (FR) |
|---|---|
| 0.01 btu | 0.0000025216539197 thm |
| 0.1 btu | 0.000025216539197 thm |
| 1 btu | 0.00025216539197 thm |
| 2 btu | 0.00050433078394 thm |
| 3 btu | 0.00075649617591 thm |
| 5 btu | 0.0012608269598 thm |
| 10 btu | 0.0025216539197 thm |
| 20 btu | 0.0050433078394 thm |
| 50 btu | 0.012608269598 thm |
| 100 btu | 0.025216539197 thm |
| 1000 btu | 0.25216539197 thm |
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.
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.