How to install your Wiser Radiator Thermostat

For optimum comfort and savings, each radiator in your home should be fitted with a Wiser Radiator Thermostat. These can be purchased and installed individually.

As radiator valve bodies are not all the same, Wiser Radiator Thermostats come with two valve adapters; M30x1.5mm and Danfoss RA (if neither work with your radiator valves, consult the Wiser Valve Adapter Guide)

First, remove the old thermostatic head from the valve body. You are now ready to install your new Wiser Radiator Thermostat.
When fitting and tightening the adapter to the Radiator Thermostat, please make sure that the O-ring is firmly seated above the thread as to avoid damaging the O-ring. Tighten by hand only.

Place the small black plastic adapter serrated face down onto the valve. Position the metal ring nut over the black plastic adapter and screw it onto the valve. Now screw the Radiator Thermostat onto the black plastic adapter until tight. If the Wiser Radiator Thermostat is not facing the right direction, slacken the metal ring nut and rotate the Radiator Thermostat as required and re-tighten the metal ring nut.

Fitting the Danfoss RA

Slide the larger black plastic adapter small end first over the valve. Make sure that the hole containing the grub screw is facing away from you. This way, once its mounted, the markings of the Wiser Radiator Thermostat will be in the required position. Use an appropriate size Allen key to tighten the grub screw. Now screw the Wiser Radiator Thermostat onto the larger black plastic adapter until tight.