Gas pipe connection to boiler ?

Question

Hi could someone tell me what connections for 1/2 inch copper pipe are satisfactory for a gas main,(local to boiler) I am a fitter and am replacing my own boiler for a high efficiency one and the gas main requires a bit of modification to hook up to the new boiler. I have not done gas piping in years.
Should i use solder fittings or compression
Thanks

Answer 1

22mm soldered copper pipe.



Because you get the odd DIY'er making a botch and an explosion, the Gov brought CORGI rules out which is just really a licence for plumbers to print money.



After speaking to building control, it's all down to common sense and just being competent. More red tape. If you read the regs and complete the work (plumbing, electrics, whatever) to the correct standard then it isn't dangerous. The number of times I've earth bonded bathrooms but I'm not Part P but the electrician and building control officer sign it off is too many to count.

Answer 2

Sorry, I cant believe your a Corgi Gas fitter.

Is the Gas main pipe copper or lead?

Is the connection onto a Gas meter?



Solder is always more reliable, but the meter and the boiler connecting plate are compression as they can bee seen and easily tested.



Get pressure safety tests done before and after you start work. That way you know in advance about any leaks.



You will have to have a Corgi qualified engineer to register / safety check any work (the law), best to arrange this first, as many might refuse too if your work is not up to standard.



1/2 " copper pipe. Do you mean 15mm or do you have old imperial sizes? Also 22mm size should be used as 15mm will restrict the gas flow to your new boiler, unless its a very very short run.



£1200 sounds about the mark. You cant register your boiler install with a Corgi account and Corgi number.

To do the Corgi test to try to obtain a Corgi account cost £1,000. if one pass's or fails. They need to be updated regularly too. Hence this charge has to be pass on to the customers in the end.

Same goes for the Electrical part 'p' certificate needed for electrical connections.



The same rules for commercial contracts too. Steel pipes are often used in commercial sites as pipes can get knocked when surface mounted.

Answer 3

You have to use a compression fitting when connecting a gas supply to a boiler, something like a 15 mm tap connector, but are you sure that the boiler doesn't need a 22mm connection for the gas supply.

Answer 4

Use solder ring..... 22 mm from meter to boiler , last few inches use a 22 to 15 reducer , then a short piece of 15mm copper to connect to your gas tap on your boiler, 15 mm is too small and wouldn't handle the volume of gas

Answer 5

USA Your best bet is threaded steel pipe ASTM A-53 or the CSST, Corrugated Stainless Steel Tubing. You need to be manufacturer certified to install CSST, and most gas utilities require it to be bonded to the electrical service ground electrode.



Copper Type K or L is allowed by the Fuel Gas Code, but check with your local gas utility first if using natural gas. Solder joints cannot be used. Flared joints are allowed. Brazed joints are allowed.



Check with your gas supplier. I also recommend a licensed HVAC technician or plumber do the work.

Answer 6

it is preferable to use solder fittings but if you are not a registered gas fitter you could face jail for working with live gas, sorry but that is the law?

Answer 7

I could tell you but as you think most corgi guys are idiots why would you believe me? Just bodge it yourself and I hope you don't go bang!

Answer 8

if your in the usa a lic plumber is the only one qualified to do this

Answer 9

sophisticated stuff. check out in a search engine. it may help!

Answer 10

Oh Oh- goodbye.