| 1 BTUth | = 0.99968735961619 BTU60°F |
| 2 BTUth | = 1.9993747192324 BTU60°F |
| 3 BTUth | = 2.9990620788486 BTU60°F |
| 4 BTUth | = 3.9987494384647 BTU60°F |
| 5 BTUth | = 4.9984367980809 BTU60°F |
| 6 BTUth | = 5.9981241576971 BTU60°F |
| 7 BTUth | = 6.9978115173133 BTU60°F |
| 8 BTUth | = 7.9974988769295 BTU60°F |
| 9 BTUth | = 8.9971862365457 BTU60°F |
| 10 BTUth | = 9.9968735961619 BTU60°F |
| 20 BTUth | = 19.993747192324 BTU60°F |
| 30 BTUth | = 29.990620788486 BTU60°F |
| 40 BTUth | = 39.987494384647 BTU60°F |
| 50 BTUth | = 49.984367980809 BTU60°F |
| 60 BTUth | = 59.981241576971 BTU60°F |
| 70 BTUth | = 69.978115173133 BTU60°F |
| 80 BTUth | = 79.974988769295 BTU60°F |
| 90 BTUth | = 89.971862365457 BTU60°F |
| 100 BTUth | = 99.968735961619 BTU60°F |
| 200 BTUth | = 199.93747192324 BTU60°F |
| 300 BTUth | = 299.90620788486 BTU60°F |
| 400 BTUth | = 399.87494384647 BTU60°F |
| 500 BTUth | = 499.84367980809 BTU60°F |
| 600 BTUth | = 599.81241576971 BTU60°F |
| 700 BTUth | = 699.78115173133 BTU60°F |
| 800 BTUth | = 799.74988769295 BTU60°F |
| 900 BTUth | = 899.71862365457 BTU60°F |
| 1000 BTUth | = 999.68735961619 BTU60°F |
| 2000 BTUth | = 1999.3747192324 BTU60°F |
| 4000 BTUth | = 3998.7494384647 BTU60°F |
| 5000 BTUth | = 4998.4367980809 BTU60°F |
| 7500 BTUth | = 7497.6551971214 BTU60°F |
| 10000 BTUth | = 9996.8735961619 BTU60°F |
| 25000 BTUth | = 24992.183990405 BTU60°F |
| 50000 BTUth | = 49984.367980809 BTU60°F |
| 100000 BTUth | = 99968.735961619 BTU60°F |
| 1000000 BTUth | = 999687.35961619 BTU60°F |
| 1000000000 BTUth | = 999687359.61619 BTU60°F |