Building on the iconic design of the Drayton TRVs. The Wiser Radiator Thermostat maintains the simplistic style and builds on years of success as a leading TRV manufacturer with a host of additional features. Radiator thermostats enable your Wiser system to enter a whole new level of smart. With a connection to the boiler, via the Heat HubR, they allow you to control the on/off times and temperatures of individual rooms using the intuitive app.