Electric Radiator Thermostatic Control Range
If the radiator is to be time controlled independently, there are various types of “Fused Spur” programmers available on the market. Grasslin manufacture a digital or mechanical model which is popular with installers and specifiers.
This particular method of control is proving popular with clients as it minimises the level of wiring when using existing outlets and also provides total control of every radiator to be able to work completely independently. They fit neatly in place of the fused Spur.

Grasslin THermostat
Delta Dore thermostat