Wiser Radiator Thermostats vs TRVs - the differences explained Follow Related articles How to replace an existing TRV head with the Wiser Radiator Thermostat What should I do if one of my Wiser Radiator Thermostats is no longer connected to the system? Making The Most of The Wiser Smart Plug Do Wiser Radiator Thermostats fit on all radiator valves? Wiser Datasheet