Bidirectional valve body Green star claim - A thermostatic radiator valve allows you to set a radiator at a different temperature, so you can heat your home only where required. This can help reduce your home's energy consumption.* TRV's are used to give you greater control of room temperatures by automatically closing when heat is not required, with the lockshield valve being used to balance the heating system. Both valves can be used to isolate the radiator Programmes: Manually adjustable temperature range of 7°c - 28°c Box Includes Trv & Lockshield Valve Positive off on trv to prevent accidental operation when radiator is removed A Rated 'tell' approved 15mm
