Specialist in Climate Control Since 1945

OpenTherm clock thermostat

opentherm thermostat

Digital clock thermostat with OpenTherm protocol

Digital clock thermostat with OpenTherm protocol for modulating, 1 to 1 control of the GS+ or GC+ air heater based on room temperature.


  • Language can be set to English, German, Dutch, French, Italian or Spanish.
  • 3 control programmes, 2 pre-programmed, 1freely programmable with 32 memory points for Mon-Fri, Sat-Sun, every day or separate days.
  • Holiday programme, can be set by date and time.
  • Measurement range from 0…50°C per 0.1°C.
  • Adjustment range from 6…30°C per 0.2°C.
  • Automatic switching between summer/winter.
  • Option for manual comfort or eco mode can be set for temporary extension or interruption.
  • Corporate failure report on the display.
  • (Burner) failure reset with the OK button.
  • Power reserve clock approx. 20 minutes.
  • Option to connect an external room temperature sensor.
Fixed programme (10 years).

Article code

  • 0629072


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