Naviens unique Stainless Steel Heat Exchangers prevent corrosion and erosion ensuring an extended life span and maintaining thermal efficiency even longer period of usage
The state-of-the-art Modulating Cam Shift Type, 3-Way Valve enables both space heating and domestic hot water supply
Summer Mode saves unnecessary energy with DHW operation only
Two staged anti-frost protects the boiler from the freezing condition even falling to -40°C
The boiler works stably and reliably even at the lower gas pressure of 4 mbar
The boiler can deliver comfortable DHW at constant temperature even at the lower inlet water pressure of 0.1bar
The built-in heating strainer keeps the heating circuit of the boiler clean maintaining its high thermal efficiency
DHW temperature adjustment by 1°C eliminates constant re-adjustment of hot water temperature
Pre-heating function delivers hot water faster to your tap
Self-diagnosis shows error codes on the stylish LCD screen of room thermostat, allowing quick and easy service
Application of SMPS system enables stable operation even in areas with frequent voltage fluctuation. (up to ±30%)