Project Description

Luna Duo-tec IN+ version Luna Space


  • Wide modulation ratio up to 1:7 better efficiency and noiseless operation
  • Gas Adaptive Control (GAC) system: combustion automatic control to maintain constantly the highest level of efficiency
  • Telescopic connection pipes with gas and mains water valves for outdoor wall-mounted installation available as optional
  • Covering kit for open air wall-mounted installation available as optional
  • Hydraulic circuit automatic filling
  • Minimum working temperature: -15°C
  • Connection to rigid and flexible Ø50 mm flue pipe: solution for chimney refurbishment and replacement of an existing open flue gas boiler, 40 max length (mod. 24 kW)
  • Digital control panel with back-lighted LCD display
  • High efficiency full modulating circulating pump
  • Integration with solar system option
  • Completely painted, also on the back to grant a higher protection against
    atmospheric agents

Hydraulic system

3 way electric diverter valve
(also heating only models)
Stainless steel premixing burner
Stainless steel water/flue heat exchanger
Stainless steel enhanced DHW
exchanger to ensure condensation
also in DHW mode
Modulating fan with electronic
speed adjusting system
Automatic by-pass
High efficiency full modulating pump
System to prevent pump and diverter
valve sticking operating every 24 hours
Safety valve set at 3 bar

Thermoregulation system

Room sensor, heating and DHW control
integrated in the remote control
Built-in climatic regulation
(outdoor sensor available as optional)
Control of multi-zones system option

Control system

Overheat limit thermostat of the
water/flue exchanger
Hydraulic pressure switch to prevent
boiler operating in event of low water
Safety NTC sensor against flues overheat
Electronic temperatures control by NTC sensors
Full anti-frost device
Electronic thermometer
Digital heating circuit pressure gauge

Technical data