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I've got to connect to some old 1/2 inch copper pipes. Is there enough clearance in the 15mm speedfit type connectors, or have I got to find some 1/2 inch olives from somewhere? Or any other way?

I didn't expect the Spanish Inquisition! No-one told me anything except I must have Corgi registered installer by law. Naively I believed that this would be sufficient. I'm beginning to think that the law is an ass.

Thanks for the interest. Surely the differential, or lack of, would not cause the roaring noise? Didn't know about Energy Efficiency Certificate and can't find any reference to it on the Corgi web-site. I just wanted a bit of background knowledge so that I can argue with him as he's trying...

He is currently Corgi registered. I have checked with their website. I have not yet received Corgi certificate. I don't have much faith in him as I had to sort the electrical wiring for him to enable the control system to work at all. To be fair, the pre-wired module on the hot water tank was...

My recently installed unvented C/H system boiler occasionally produces a loud roaring noise on start up. This sometimes lasts a couple of seconds but usually remains until it shuts down. The noise sounds to me as if the air/gas mixture is wrong, like we used to have on a bunsen burner back in...

The boiler is an old Buderus and is very noisy. Been living on borrowed time for some years. I got it cheap as obsolete stock about 28 years ago so I guess it doesn't owe me anything. We had no gas in the village until fairly recently. We also suffer lots of electricity outages. I want to get...

Thanks for reply. I'm more interested in getting rid of tanks etc but also as I'm over 60 I can get combined fixed price fuel bill for gas and electricity.

I was going to have our ancient oil fired boiler replaced with a gas combi, but having read through the various postings, I now think it would be better to fit a conventional unit. I have only researched combi units so far, so the question is, are all boilers now balanced flue? As it looks...

What year is it?