How does a TRV work?
A TRV is a Thermostatic Radiator Valve and is found on many radiators.
A Thermostatic Radiator Valve (TRV) is a device that is installed on a radiator to control the temperature of a room. It works by sensing the air temperature in the room and adjusting the flow of hot water through the radiator to maintain a desired temperature.
A TRV typically consists of a valve body and a thermostatic head. The valve body is connected to the radiator and the heating system, while the thermostatic head contains a temperature-sensitive element (usually a wax-filled sensor) that expands or contracts in response to changes in the air temperature.
When the air temperature in the room rises above the desired level, the thermostatic head senses this and expands, causing the valve to close and reduce the flow of hot water through the radiator. This reduces the heat output of the radiator and helps to maintain a steady temperature in the room.
Conversely, when the air temperature in the room falls below the desired level, the thermostatic head senses this and contracts, causing the valve to open and increase the flow of hot water through the radiator. This increases the heat output of the radiator and helps to maintain a steady temperature in the room.
TRVs are a popular and cost-effective way to control the temperature of individual rooms in a home or building, as they can help to reduce energy consumption and improve comfort levels.