Search results

Thanks, might have to try that. But am still mystified as to exactly what might be going on...

Have tried testing with a match but whatever it is, it doesn't seem to burn readily. When system was drained for conversion to pressurised system, the water coming out looked clean and fresh. I should mention this problem has been ongoing now for at least 2 years. Presumably if anything...

Hello: Sorry to bother everyone again :cry: I asked a question a while ago about how to deal with air getting into my heating system. The solution recommended here and by others was to convert it to a pressurised system. This I have now done - BUT still the problem persists. System...

Thanks again for all the responses - especially on a bank holiday! Looks like sealed system is the best bet. I guess this is probably not a DIY job...?

Thanks for the advice. In fact another plumber did suggest the conversion to sealed system, but for some reason I wasn't convinced. Being paranoid I worry that the increased presure might cause a big leak somewhere in the (possibly-dodgy) pipework; or alternatively that the air problem would...

OK, Some more info: Old boiler was a Baxi (Bermuda?) back boiler New is a Potterton Suprima 40L Not sure about water content - both similar heat output so may be about the same? It is a small system (5 radiators) in a top floor flat with header tank in loft (just above ceiling level). The...

I have a big problem of air (or some other gas?) in the central heating. Need to vent radiators every day. Noise of bubbles moving around in the pipes all the time. A bit of history: Problem started after the system was cleansed with an acidic cleaner (Fernox DS40) Has been drained...

I Recently cleaned my system using "Fernox DS40" (plus neutraliser). Drained + flushed 4 times as per instructions, then refilled + Fernox protector added. Ever since, it continually fills with air and needs venting every day. Only happens when the boiler is hot, no problem when the stat is...