One bedroom cottage is electrically heated no central heating.
Sized the bathroom and need a 500 watts electric towel radiator to keep it at 21C when it is 0C outside.
So when it is say 5C to 10C outside how do you control the temperature as I assume you cannot have a thermostat on the towel radiator in the bathroom. Wet hands on electrical controls etc.
Can you get a remote thermostatic sensor in the bathroom controlled from a box in the hall outside.
For safety I assume it must go through an RCD.