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Viessmann Vitotrol 100 Wired OpenTherm Thermostat (7511618)


106 in stock

Viessmann Vitotrol 100 Wired OpenTherm Thermostat (7511618)

If you have any questions or need any questions answered about the Viessmann Vitotrol 100 OpenTherm Programmable Room Thermostat, please contact Mid Wales Plumbing & Heating Supplies on 01686 626 314 (8-4pm Mon-Fri) before purchasing this item.

Box Contains:

  • 1x Viessmann Vitotrol 100 OpenTherm Wired Room Unit
  • 1x Wall Mount Backplate
  • 1x Installation & User Instructions

Product Features:

  • OpenTherm Modulation (Load or Weather Compensation*)
  • Max Flow Temp Setpoint & DHW Temp Setpoint Via OpenTherm
  • 7 Day Programmable – 4 Independent Time Periods
  • Holiday Function
  • Easy User Interface
  • Built-in memory holds the user program indefinitely so that it is never lost
*Weather Compensation only works when boiler has weather compensation sensor fitted.

The Viessmann Vitotrol 100 was discontinued in 2018 but was (and still is) a very good hard wired OpenTherm Thermostat. It had the ability to weather compensate any Viessmann boiler with an outside sensor fitted, and has 40 weather compensation curves you can select.

The Viessmann Vitotrol 100 was made by Honeywell and this thermostat is what is known as a CM737 which is essentially a hard wired OpenTherm modulation thermostat.

I believe it will work with any OpenTherm Boiler (Intergas, Alpha, Viessmann, Atag, Baxi & Ideal) as it has the ability to set the maximum heating flow temperature and hot water temperature.


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