| Steam Pressures bar | Effectiveness | ||
| LP (250˚C) | HP (510˚C) | LP | HP |
| 4 | 80 | 0.5397 | 0.3763 |
| 6 | 100 | 0.5389 | 0.3717 |
| 8 | 120 | 0.5373 | 0.3670 |
| 10 | 140 | 0.5356 | 0.3621 |
| 12 | 160 | 0.5339 | 0.3571 |