| | VEK170 | VEK220 | | Fuel | | Split logs (33 cm) | Split logs (33 cm)
| | Water nominal thermal output | kW | 12,3 | 17,2
| | Overall nominal thermal output | kW | 16,9 | 21,5
| | Room nominal thermal output | kW | 4,6 | 4,3
| | Necessary flue draught* | mbar | 0,15 | 0,15
| | Net/gross weight | kg | 165/190 | 218/236
| | Fuel/filling chamber | dm3 | 33 | 40
| | Boiler water volume | Liter | 14 | 19
| | Operating pressure max.bar | 2,5 | 2,5
| | Flue Ø | mm | 130 | 150 |
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