Hi all, looking to replace a radiator in the bathroom. Central Heating system is open vented. The problem is I can't find a drain valve for the CH system and none of the radiators appear to have a drain/tap outlet either. Can I drain the system by closing one of the rad valves in the bathroom and opening the otherallowing the water to drain into a bucket/tray?? Do I just have to ensure the Boiler is turned off and the feed/expansion tank ball valve is secured closed?
Thanks.
Thanks.