| 1 BTUit | = 0.9956456751819 BTU39°F |
| 2 BTUit | = 1.9912913503638 BTU39°F |
| 3 BTUit | = 2.9869370255457 BTU39°F |
| 4 BTUit | = 3.9825827007276 BTU39°F |
| 5 BTUit | = 4.9782283759095 BTU39°F |
| 6 BTUit | = 5.9738740510914 BTU39°F |
| 7 BTUit | = 6.9695197262733 BTU39°F |
| 8 BTUit | = 7.9651654014552 BTU39°F |
| 9 BTUit | = 8.9608110766371 BTU39°F |
| 10 BTUit | = 9.956456751819 BTU39°F |
| 20 BTUit | = 19.912913503638 BTU39°F |
| 30 BTUit | = 29.869370255457 BTU39°F |
| 40 BTUit | = 39.825827007276 BTU39°F |
| 50 BTUit | = 49.782283759095 BTU39°F |
| 60 BTUit | = 59.738740510914 BTU39°F |
| 70 BTUit | = 69.695197262733 BTU39°F |
| 80 BTUit | = 79.651654014552 BTU39°F |
| 90 BTUit | = 89.608110766371 BTU39°F |
| 100 BTUit | = 99.56456751819 BTU39°F |
| 200 BTUit | = 199.12913503638 BTU39°F |
| 300 BTUit | = 298.69370255457 BTU39°F |
| 400 BTUit | = 398.25827007276 BTU39°F |
| 500 BTUit | = 497.82283759095 BTU39°F |
| 600 BTUit | = 597.38740510914 BTU39°F |
| 700 BTUit | = 696.95197262733 BTU39°F |
| 800 BTUit | = 796.51654014552 BTU39°F |
| 900 BTUit | = 896.08110766371 BTU39°F |
| 1000 BTUit | = 995.6456751819 BTU39°F |
| 2000 BTUit | = 1991.2913503638 BTU39°F |
| 4000 BTUit | = 3982.5827007276 BTU39°F |
| 5000 BTUit | = 4978.2283759095 BTU39°F |
| 7500 BTUit | = 7467.3425638642 BTU39°F |
| 10000 BTUit | = 9956.456751819 BTU39°F |
| 25000 BTUit | = 24891.141879547 BTU39°F |
| 50000 BTUit | = 49782.283759095 BTU39°F |
| 100000 BTUit | = 99564.56751819 BTU39°F |
| 1000000 BTUit | = 995645.6751819 BTU39°F |
| 1000000000 BTUit | = 995645675.1819 BTU39°F |