Recent content by Simmarian

Thank you very much for that helpful suggestion. AN airlock is interesting! Would that be consistent with the intermittent/ hot water only nature of my problems? Are your suggestions about pening the valve intended to address the air lock, or (as I think is more likely) to facilitate the flow...

I am grateful to both of you for these comments. I can confirm that the magnetic filter has beeen regularly cleaned. What puzzles me most is the intermittent nature of the problem: it is only now and again that it occurs, and I would have expected it to be fairly constant if there was an...

I have an intermittent boiler venting problem which has proved difficult to diagnose. Background: I have lived in the same house for some thirty years, and the core pipes (I believe they are cast iron, and quite thick) for the heating system must be at least 10 years older than that. Various...