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Central heating thermostats

A room thermostat is usually found in a hallway.  It monitors the temperature in your home and tells the boiler to switch off when the house is warm enough.

Thermostats are normally set between 18 and 21°C.

Turning a room thermostat to a higher setting will not make the room heat up faster.  How quickly the room heats up depends on the design of the heating system, e.g. size of boiler and radiators.

Neither does the setting affect how quickly the room cools down.  Turning a room thermostat to a lower temperature will result in the room being controlled at a lower temperature, and saves energy.
The way to set and use your room thermostat is to find the lowest temperature you are comfortable with, and the leave it alone to do its job.

To do this, set the room thermostat to a low temperature, say 18°C, and then turn it up by one degree each day until you are comfortable with the temperature.  You won’t have to adjust the thermostat further.  Any adjustment above this setting will waste energy and cost you more money.

Room thermostats need a free flow of air to sense the temperature, so they must not be covered by curtains or blocked by furniture.  Nearby electric fires, televisions, wall or table lamps may prevent the thermostat from working properly. 

Standard room thermostat 

Simply set the desired room temperature on the control knob against the setting mark.

Digistat+RF thermostat

To operate:

  • The display normally shows the current room temperature to within 0.5°C
  • To adjust the required temperature, turn the dial clockwise to increase, or anti-clockwise to decrease (1 click = 1°C). The LCD will display the temperature setpoint as it is being adjusted and ‘SET’ will be displayed.  After a few seconds, the display will return to normal operation and will display the actual room temperature.

If you reach the maximum possible setting while adjusting the temperature during normal operation, the display will flash to indicate you cannot adjust the thermostat further.

There is a helpful video on how to set minimum and maximum temperature limits on this type of thermostat or you download the user guide here.