| Ambient Temperature ˚C (T1) | Heat Rate kcal/kW×h | Thermal Efficiency % |
| 24 | 3508 | 24.60 |
| 25 | 3508 | 24.50 |
| 26 | 3626 | 24.00 |
| 27 | 3630 | 23.90 |
| 28 | 3630 | 23.70 |
| 29 | 3688 | 23.00 |
| 30 | 3748 | 22.30 |
| 31 | 3837 | 22.00 |
| 32 | 3851 | 22.00 |
| 33 | 4009 | 21.00 |
| 34 | 4132 | 20.80 |
| 35 | 4303 | 20.00 |