Can we put thermostatic valves on our radiators?

John Conlin / 20 February 2018

A reader would like to replace a single thermostat with thermostatic valves on the radiators.


I want to make our existing central heating system more efficient. At the moment it is controlled by a single thermostat and the existing radiator valves do not provide much control between on and off. Is it possible to replace the existing valves with thermostatic ones?


That should not be a problem. In some cases the existing valve can be converted by fitting a new thermostatic ‘top half’ without detaching the body of the valve from the radiator.

See if the existing valve has a name and model number. Failing that, take a close-up photo and your local plumber’s merchant may be able to identify it.

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