Hi all,
I have a vented CH system to drain system.
The only valve I should close is the expansion tank feed valve.
Will this drain the hot water cyclinder?
I tried to search for further info and have looked at FAQ where it tells the above.
Kenny
Hi all,
New to the forum I've got economy plus 50 boiler which starts up runs for abou 10-15 seconds then starts making banging noises like a valve or similar opening and shutting then it cuts off?