Thanks for replying. I'm unsure what you mean by a dirvertor valve, however I do have a 2 port motorised valve on the primary flow to the coil within the cylinder.
The stat used for the heating is a room stat in the hallway. I've always believed the hot water temperature was controlled by a...
I have a Ideal classic FF250 Boiler installed. Its four years old and is part of a sealed system. Its linked to a Megaflow pressure water heater. A couple of days ago the boiler shut down and initially I could n't get it going. However I have now found that if I switch on the heating and turn...