CH and instant DHW production (with premix burner, suitable for high working temperatures)
Condensing
Heating
Domestic Hot Water
Modulation 1:10
CH and possible DHW production with external storage tank (with premix burner, suitable for high working temperatures)
External storage tank
CH and instant DHW production with a modulation ratio > 1:20
Modulation 1:20
Central heating and instant DHW production, with MAXI dual exchanger