| | SWK170T | SWK240T | | Nominal thermal output range | kW | 9.7 – 17 | 12.3 – 24.6
| | Boiler efficiency | % | 90.2 | 90.1
| | Flow temperature min./max. | °C | 100/65 | 100/65
| | Return temperature min. | °C | 45 | 45
| | Boiler water volume | l | 65 | 65
| | Filling chamber | l | 92 | 92
| | Weight | kg | 360 | 360
| | Installation dimensions (W x D x H) | mm | 630 x 1,050 x 1,460 | 630 x 1,050 x 1,460
| | Minimum draught requirement | mbar | 0.05 | 0.05
| | Flue gas temperature rated load** | °C | 182 | 195
| | Electrical connection | W | 120 | 120 |
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