Radiator valves control the flow of water through each radiator on a wet heating system.  Each radiator has 2 valves – one to control the water coming in and one to control the outgoing water. The simplest valves on the incoming side are “wheelhead” or “manual” valves.  These basically have two positions – on or…

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This is only a concern if you are installing a multi-zone heating system. In this case, if all the radiators in a room are boxed in then the smart TRVs (thermostatic radiator valves) to be fitted on the radiators cannot accurately determine the temperature in the room.  So they cannot turn the radiators on or…

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Honeywell Evohome smart TRVs will replace most non-smart TRVs without problem.  We will also provide new valves for those radiators that you identified in your configuration as only having wheelhead (manual) valves. Before installation we ask you to provide photos of your radiator valves so that we have all the equipment necessary to fit the…

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