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What is a room thermostat?
... an explanation for householders. A room thermostat simply 
switches the heating system on and o  as necessary. It works by 
sensing the air temperature, switching on the heating when the air 
temperature falls below the thermostat setting, and switching it o 
once this set temperature has been reached.
Turning a room thermostat to a higher setting will not make the 
room heat up any faster. How quickly the room heats up depends 
on the design of the heating system, for example, the size of boiler 
and radiators.
Neither does the setting a ect how quickly the room cools down. 
Turning a room thermostat to a lower setting will result in the room 
being controlled at a lower  temperature, and saves energy.
User Instructions
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