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One BTU is the energy required to heat 1 avoirdupois pound of liquid water by 1 degree Fahrenheit, at a pressure of one atmosphere. The Btu (mean) uses a result averaged over water temperatures 0 to 100 °C (32.0 to 212.0 °F) which is approx. 1055.87 J
One BTU is defined as the energy needed to warm 1 avoirdupois pound of liquid water by 1 degree Fahrenheit at one atmosphere. One Btu (15.8°C, Canada) equates to 1054.615 J
| Btu (mean) | Btu (15.8°C, Canada) |
|---|---|
| 0Btu (mean) | 0.00Btu (15.8°C, Canada) |
| 1Btu (mean) | 1.00Btu (15.8°C, Canada) |
| 2Btu (mean) | 2.00Btu (15.8°C, Canada) |
| 3Btu (mean) | 3.00Btu (15.8°C, Canada) |
| 4Btu (mean) | 4.00Btu (15.8°C, Canada) |
| 5Btu (mean) | 5.01Btu (15.8°C, Canada) |
| 6Btu (mean) | 6.01Btu (15.8°C, Canada) |
| 7Btu (mean) | 7.01Btu (15.8°C, Canada) |
| 8Btu (mean) | 8.01Btu (15.8°C, Canada) |
| 9Btu (mean) | 9.01Btu (15.8°C, Canada) |
| 10Btu (mean) | 10.01Btu (15.8°C, Canada) |
| 11Btu (mean) | 11.01Btu (15.8°C, Canada) |
| 12Btu (mean) | 12.01Btu (15.8°C, Canada) |
| 13Btu (mean) | 13.02Btu (15.8°C, Canada) |
| 14Btu (mean) | 14.02Btu (15.8°C, Canada) |
| 15Btu (mean) | 15.02Btu (15.8°C, Canada) |
| 16Btu (mean) | 16.02Btu (15.8°C, Canada) |
| 17Btu (mean) | 17.02Btu (15.8°C, Canada) |
| 18Btu (mean) | 18.02Btu (15.8°C, Canada) |
| 19Btu (mean) | 19.02Btu (15.8°C, Canada) |
| Btu (mean) | Btu (15.8°C, Canada) |
|---|---|
| 20Btu (mean) | 20.02Btu (15.8°C, Canada) |
| 21Btu (mean) | 21.02Btu (15.8°C, Canada) |
| 22Btu (mean) | 22.03Btu (15.8°C, Canada) |
| 23Btu (mean) | 23.03Btu (15.8°C, Canada) |
| 24Btu (mean) | 24.03Btu (15.8°C, Canada) |
| 25Btu (mean) | 25.03Btu (15.8°C, Canada) |
| 26Btu (mean) | 26.03Btu (15.8°C, Canada) |
| 27Btu (mean) | 27.03Btu (15.8°C, Canada) |
| 28Btu (mean) | 28.03Btu (15.8°C, Canada) |
| 29Btu (mean) | 29.03Btu (15.8°C, Canada) |
| 30Btu (mean) | 30.04Btu (15.8°C, Canada) |
| 31Btu (mean) | 31.04Btu (15.8°C, Canada) |
| 32Btu (mean) | 32.04Btu (15.8°C, Canada) |
| 33Btu (mean) | 33.04Btu (15.8°C, Canada) |
| 34Btu (mean) | 34.04Btu (15.8°C, Canada) |
| 35Btu (mean) | 35.04Btu (15.8°C, Canada) |
| 36Btu (mean) | 36.04Btu (15.8°C, Canada) |
| 37Btu (mean) | 37.04Btu (15.8°C, Canada) |
| 38Btu (mean) | 38.05Btu (15.8°C, Canada) |
| 39Btu (mean) | 39.05Btu (15.8°C, Canada) |
| Btu (mean) | Btu (15.8°C, Canada) |
|---|---|
| 40Btu (mean) | 40.05Btu (15.8°C, Canada) |
| 41Btu (mean) | 41.05Btu (15.8°C, Canada) |
| 42Btu (mean) | 42.05Btu (15.8°C, Canada) |
| 43Btu (mean) | 43.05Btu (15.8°C, Canada) |
| 44Btu (mean) | 44.05Btu (15.8°C, Canada) |
| 45Btu (mean) | 45.05Btu (15.8°C, Canada) |
| 46Btu (mean) | 46.05Btu (15.8°C, Canada) |
| 47Btu (mean) | 47.06Btu (15.8°C, Canada) |
| 48Btu (mean) | 48.06Btu (15.8°C, Canada) |
| 49Btu (mean) | 49.06Btu (15.8°C, Canada) |
| 50Btu (mean) | 50.06Btu (15.8°C, Canada) |
| 51Btu (mean) | 51.06Btu (15.8°C, Canada) |
| 52Btu (mean) | 52.06Btu (15.8°C, Canada) |
| 53Btu (mean) | 53.06Btu (15.8°C, Canada) |
| 54Btu (mean) | 54.06Btu (15.8°C, Canada) |
| 55Btu (mean) | 55.07Btu (15.8°C, Canada) |
| 56Btu (mean) | 56.07Btu (15.8°C, Canada) |
| 57Btu (mean) | 57.07Btu (15.8°C, Canada) |
| 58Btu (mean) | 58.07Btu (15.8°C, Canada) |
| 59Btu (mean) | 59.07Btu (15.8°C, Canada) |
