I believe this is an old fashioned system and the bathroom radiator is separate to the rest of the systems radiators. This is fine normally, nice warm , dry towells all year round. But right now it is a problem as I want to change this radiator.
I assumed it was on the hot water system , instead of the same system as all the other rads, but I have tried turning the hot water off and still water is supplied to this rad. Do I need to drain down my main radiator system even though this rad seems to be separate?
Any help would be greatly appreciated.