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Never a truer word written by a typo.

Dick! I've missed you!

Colloquially known as a double-bagger, so I am told. You wear a bag over your head, in case the one you've put over hers should fall off.

The output from most inverters isn't a true sine-wave and many electronic devices won't work with an inverter I forget which ones, have a search on the internet. A single car battery wouldn't last very long.

I don't think he did. Some people can't afford to pay Gas Safe rates. Some won't pay, others just can't. It's just a fact of life. £25/hr is cheap compared to most, though.

Probably because, if it's a by-pass, it is a direct connection between flow and return, there will be a large differential pressure across it and the smaller pipe will provide a greater restriction and make the by-pass flow rate easier to regulate. Imagine a tradesman not knowing that...

Silicone grease? The devil is in the detail.

Yes. And that will cause the pressure relief valve to open when the water heats up, hence the trickling tundish.

Search the archives? http://www.diynot.com/forums/viewtopic.php?t=50732

The law is clear; it just does not say what some people think it should say. The HSE have said somewhere that they had no plans to amend the law on DIY gas installation because they had not found it to be a problem.

Exactly. The BOOM! alone demonstrates you weren't competent, if it is proved to be the result of your work. If you were Gas Safe registered, such a BOOM! would show that you were competent but had been negligent.

No, Dean. Where do the Gas Safety Regulations require proof of competence? They don't, except in the case of those working on gas as employees or self-employed, in which case you have to be a member of a 'class of persons', etc., i.e., Gas Safe. Corgi and Gas Safe have blocked...

No. But the Gas Safety (Installation and Use) Regulations only requires the ACS qualification for those working on gas as employees or as self-employed. The only general requirement is that the person is competent. You're supposed to know this stuff if you're a gas fitter. You...

I'm appalled by the number of gas fitters who call themselves engineers and who persistently misrepresent the contents of the Gas Safety (Installation and Use) Regulations to members of the public.

Bobby. It's a copper tube. You must mean a gas fitter. That's not what the Gas Safety Regulations say, as you're probably well aware. He has to be competent, that's the only requirement.

A coin? You can see the 'joins' where the tool has been rolled forward from one V mark to the next. Otherwise something with a circular tip. There's a building I know that used to be Sunday school. The red bricks have many hemi-spherical holes in them, most the size of old pennies or...

Whilst I was reading the answers above, it was slowly dawning on me that I was a dinosaur, since I'd used pipe coils in the distant past. I glad my species isn't quite extinct yet. The copper pipes will work much as a towel rail bathroom radiator. The heat emission figures for uninsulated...

I would probably have done as I said in my first post, modulating condensing boiler, or planned to achieve that eventually. However, I don't want to pretend to be wise after the event; I didn't know how big the system was and that was an 'off the cuff' comment. You've installed the system...

Unfair. I did not say the Kanmor unit was rubbish, nor did I slag it off. I think the bit in the manual that I flicked through (setpoint = Tf - 1/2 Tdiff?) is wrong. I specified commercial control systems and IMHO have a better understanding of such control systems than most. I'm just...

It was/is most probably gas, rather than something that smells similar, from what you've said. But "near the piping" to the boiler? Not "near the boiler"?