If your iron isn't calibrated, what you dial in may not be the exact temperature of the iron. Use these numbers as a guide and adjust down to the lowest temperature that will maintain the wax in a liquid state at a length of about 4 inches (10 cm) behind your iron. Using your judgment is always preferred to relying on the dial setting.
| Wax Temperature (F) | Iron Temp (F) | Iron Temp (C) |
| Warm | 230 | 110 |
| Cold/All-Temp | 265 | 130 |
| >32 | 230 | 110 |
| 25 - 34 | 240 | 115 |
| 20 - 28 | 255 | 125 |
| 15 - 21 | 265 | 130 |
| <21 | 275 | 135 |
| <15 | 285 | 140 |