Having just moved house, I want to change which radiator acts as the heat sink. All rads are fitted with TRV's except the sink. Can I remove TRV from one rad and move to another without draining down the system? Are there any rules on which radiators can be used as the sink (ie. assume it has to be a ground floor one)?
I'm new to plumbing so an idiot's guide would be appreciated.
I'm new to plumbing so an idiot's guide would be appreciated.