Please can someone help. My central heating system is open vented, but just above the boiler where the pump is, I have a return pipe just after the pump which feeds back into the returning water from the radiators.
There is a gate valve in the pipe which is partially open - should it be? and what's the point of having this return loop? basically hot water leaving the boiler and before the electronic valve, can feed back into the boiler?
What's the point and should I close it. All help very much appreciated!!
There is a gate valve in the pipe which is partially open - should it be? and what's the point of having this return loop? basically hot water leaving the boiler and before the electronic valve, can feed back into the boiler?
What's the point and should I close it. All help very much appreciated!!