- forced draft (closed chamber) 

- monothermal heat exchanger 

- rated power: 13-31 kw 

- LCD display

- forced draft (closed chamber)

- monothermal heat exchanger + brazed plate heat exchanger 30 plates

- rated power: 13-31 kw

- efficiency: 93%

- LCD display

- the fan with variable speed

- hydraulic group made of bronze

- well-known brand components: gas burner Worgas (Italy); gas valve Honeywell (the Netherlands); the circulation pump - Grundfos (Denmark)/Wilo (France); expansion vessel Zilmet (Italy)/ CIMM (Italy); electric Fan EBM (Germany)/ FIME (Italy) ; Heat exchanger - Valmex (Italy); Electronic board  Brahma (Italy).

-  warranty: 3 years. The spare parts will be dispatched free of charge during the warranty period