The VT117 Radiator Thermostat senses the air temperature around it and can limit room temperature by regulating individual radiator output in wet central heating systems. Radiator thermostats are particularly useful in taking advantage of uncontrolled heat gains (e.g. solar gain or an open fire in a living room). According to Building Regulations Part L1 radiator thermostats should be fitted “on all radiators except in rooms with a room thermostat” to satisfy either Minimum or Best Practice installations. The valve can be mounted vertically or horizontally at either end of a radiator. To work correctly, the VT117 should be installed to a two pipe heating system and also have a free flow of air around the head to sense temperature.

• Bi-directional valve body
• Wax sensor provides consistent and reliable performance
• Sensor head may be mounted vertically or horizontally by interchanging radiator tail and copper tube fittings
• Integral balancing adjustment
• Energy saving button alerts user to economical setting for comfort
• 6mm play on radiator tailpiece to allow for variation in radiator distance from valve