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Next question, thanks for all the help so far........... We have an 8mm microbore system. We need a new boiler (probably not a combi......) The system is OLD. So far we have flushed the system with a cleaner, removed and cleaned out every single radiator individually (and both manifolds)...

I've read the thoughts here on TRVs. Do all TRVs work equally well with microbore 8mm pipework using reducers? Thank you for any assistance!

This could be the first of many...........sorry! We need an entirely new central heating system - no question! Reading past views on this forum, the apparent ratio of problems arising, newspaper articles and the vehement opinion of one plumbing business owner we definitely got the impression...

Back in 2004 on this forum (and in other places) no-one seemed to have a good word for combi boilers - except as a never ending source of repair work. Have opinions changed? Has reliability improved sufficient to make them worthy of consideration? We have a 35yr old microbore system which is...

We have a 30+ year old house with a microbore (10mm) CH system of the same age. A new Glow-worm Spacesaver boiler - now kaputt - was fitted about 20 years ago. So far as we are aware there has been little or no maintenance on any part of the system since the house was built. Can a combi...

Why do radiators on microbore systems have the feed and return at the same end?. Where we have double radiators they are f&r one end, the single radiators which have an internal pipe to circulate the hot water are also f&r from the same end - but we have some which have f&r in line. We are...