What is a Thermostatic Radiator Valve?
As its name implies, it is a radiator valve, but it incorporates an internal thermostat, so that the temperature of the individual radiator, and therefore that specific room, can be better controlled. It is commonly abbreviated to TRV. Because of the control knob and integrated thermostatic mechanism, they are quite a bit larger than a standard valve. NOTES: Flow direction CAN be important for these, so try to choose one that is BI-DIRECTIONAL (Valve Flow Selectable) such as a DANFOSS RAS-C2. This model has a half-turn device in the body that changes the flow choice, so it can be fitted to the most convenient side of the radiator. If possible, also try to fit TRVs with the thermostatic head pointing AWAY from the radiator side (that is horizontal, rather than vertical), to get more accurate sensing of the ambient room temperature. Otherwise the radiated heat and heat rising from the supply pipe may make it inaccurate by half a stop or more.
A thermostatic radiator valve (TRV) is shown in the image to the right. You will find it on the pipework at the top or bottom of your radiator. It gives you greater control over the heat from each individual radiator. Each TRV can be set to a temperature to suit you, so you can have different temperatures in different rooms. How should I set my thermostatic radiator valves? It’s best to set your TRV to a middle setting and see if the room is warm enough. If the room is too warm, turn the TRV down by 1, if the room is too cold, turn the TRV up by 1. A middle setting corresponds to approximately 20ºC (68F). Do NOT turn the TRV fully ON or fully OFF to make the room you are in warmer or cooler – this will waste fuel. Turn it a little way and let it do the work.
A thermostatic radiator valve (TRV) is shown in the image to the right. You will find it on the pipework at the top or bottom of your radiator. It gives you greater control over the heat from each individual radiator. Each TRV can be set to a temperature to suit you, so you can have different temperatures in different rooms. • How should I set my thermostatic radiator valves? It’s best to set your TRV to a middle setting and see if the room is warm enough. If the room is too warm, turn the TRV down by 1, if the room is too cold, turn the TRV up by 1. A middle setting corresponds to approximately 20ºC (68F). Do NOT turn the TRV fully ON or fully OFF to make the room you are in warmer or cooler – this will waste fuel. Turn it a little way and let it do the work. • Why does one radiator in my home not have a TRV? There may be one (or more) radiators in your home, usually the bathroom, which does not have a TRV. This does not mean that one is missing.
As its name implies, it is a radiator valve, but it incorporates an internal thermostat, so that the temperature of the individual radiator, and therefore that specific room, can be better controlled. It is commonly abbreviated to TRV. Because of the control knob and integrated thermostatic mechanism, they are quite a bit larger than a standard valve. Also see Radiator Hints (LINK HERE). Below are the 3 parts you tend to get in a TRV kit: NOTES: Flow direction CAN be important for these, so try to choose one that is BI-DIRECTIONAL (Valve Flow Selectable) such as a DANFOSS RAS-C2. This model has a half-turn device in the body that changes the flow choice, so it can be fitted to the most convenient side of the radiator. If possible, also try to fit TRVs with the thermostatic head pointing AWAY from the radiator side (that is horizontal, rather than vertical), to get more accurate sensing of the ambient room temperature. Otherwise the radiated heat and heat rising from the supply pipe may
