Recent content by Max1s

Thanks ... I am running the system between 1.5 and 2 bar. The boiler is a Glow Worm Micron 50FF. The manual says that it can be installed used for both open vented and sealed systems.

Hi, I've not been able to find anything similar so hope someone is able to advise. 12 months ago I had my open vented heating system converted into a unvented system due to a loft installation. Recently I noticed that the boiler was making interesting noises... It's summer now, so...