For various reasons, including using the things fitted in a holiday let, I have become interested in heated towel rails.
The towel rail in this location is a decent size and would appear adequate to heat the bathroom. It only heats when the central heating combi boiler is on. Even at this early part of the year, this week we have felt little or no need for general heating.
The towel rail itself has no controls on it (yes - lock shield but not TRV, etc.). So all we can do is go round the place, turn down the TRVs on all radiators, and play with the room thermostat to get the CH running. Then the towel rail warms up nicely - if not too much!
Far more handy would be if there were a push-button which allowed you to get the towel rail heated for, maybe, half an hour primarily to warm and dry the towels. Without having to do anything else.
Another place uses TRV on the towel rails - at least you have local control in the bathroom. But even then, you have to remember to turn it down again and it might be rather more than is needed in warmer weather.
Is there a satisfactory answer to towel rail control? I am well aware of the electric option but want to see of there is another answer.