TRVs fitted to your radiators help your house to heat up more evenly, making your heating system more efficient and comfortable, saving you money in the process.
How do they work?
TRVs are fitted to one end of each radiator. You set the 'target' temperature for each room using the TRV. As a room heats up the TRV shuts off heating flow to it's radiator, sending heat to the cooler rooms. This means that your house heats up more evenly and prevents typically warmer rooms from being constantly overheated.
Teamed with a room thermostat positioned centrally in your house, TRVs make your heating system dramatically more efficient.