| Parameters | Value |
| Thermal power (at temp. 80/60°C) | 2,7 - 20,0 kW |
| Thermal power (at temp. 50/30°C) | 3,0 - 22,0 kW |
| Heat load | 2,8 - 20,4 kW |
| Seasonal space heating energy efficiency ?s | 94 % |
| Efficiency of the boiler at nominal load and average boiler water temperature of 70°C | 97,6 % |
| Efficiency of the boiler at partial load and return water temperature of 30°C | 107,9 % |
| Seasonal space heating energy efficiency class | A |
| Useful heat output at rated thermal power P4 (for modulated boilers - arithmetic mean of min and max) | 20,0 kW |
| Useful heat output at 30% of rated power P1 (for modulated boilers - 30% of arithmetic mean) | 6,6 kW |
| Efficiency ?4 | 88,3 % |
| Efficiency ?1 | 98,8 % |
| Max water pressure | 3 bar |
| Max CH temperature | 95 °C |
| Standard adjustable temperature | 40-80 °C |
| Reduced adjustable temperature | 25-55 °C |
| Pump head at 0 flow | 0,7 bar |
| Range of water temperature regulation | 30-60 °C |
| Sound power level LWA | 48 dB |
| Emission of nitrogen dioxide | 21 mg/kWh |
| Emission class of nitrogen dioxide (NOx) | 6 |
| Expansion vessel capacity | 6 dm³ |
| Standby mode power consumption PSB | 0,002 kW |
| Electricity consumption at full load elmax | 0,07 kW |
| Electricity consumption at partial load elmax | 0,06 kW |
| Type and supply voltage | ~230±10%/50Hz V |
| Protection degree | IPX4D |
| Heating water and gas connection | G3/4 inch |
| Dimensions | 785 x 400 x 334 mm |
| Weight | 31,5 kg |
| Exchanger material | stainless steel |