Ive a problem with the flow and return central heating pipes on my oil boiler..
can any one tell me if the Flow pipe should be hotter than the return Pipe to the boiler... I think there round the wrong way!!
When the boiler shuts down there is a terrible gurgling noise in the pipes to the boiler?
Any ideas please or advice
can any one tell me if the Flow pipe should be hotter than the return Pipe to the boiler... I think there round the wrong way!!
When the boiler shuts down there is a terrible gurgling noise in the pipes to the boiler?
Any ideas please or advice