Hi all.
I have a question about my central heating. When i switch on the water and central heating (I have to together..my system is old) the water circulates fine etc around the system, you can hear it circulating. But when i switch them off, everything turns off and suddenly i hear a lot of water rushing in the pipes in the airing cupboard, i believe in the feedpipe.
While the system heats up the feedpipe heats up. But as soon as everything is turned off it goes immediately cold. I can't understand this rush of water in the system as the system is turned off, never happened before or i was aware of.
Any ideas?
Also i have turned off 3 of the rads downstairs...could this be an issue too?