Why Do New Boilers Need A 22mm Supply?

[spiv]

Hi Having checked this forum for gas pipe size feel more confused than ever, due to new boilers using less gas.

Now will be having a new comb fitted and after laying new suppy pipe before fitting kitchin units ( boiler will be fitted by a engineer), run is about 15m with a tee of for cooker which is 12m from meter.

Now am I right in saying I need a 28mm up to cooker then to boiler a 22mm pipe.

Also service pipe from gas main to house is a steel pipe that has been lined with a plastic pipe, which may (not sure) be smaller than 28mm.

 

[littleleaks]

You should not be laying the pipework for the gas at all.

 

[swbjackson]

Also service pipe from gas main to house is a steel pipe that has been lined with a plastic pipe, which may (not sure) be smaller than 28mm.

The service pipe is at higher pressure.

 

[spiv]

You should not be laying the pipework for the gas at all.

Cannot see no reason why I can not, if its not connected by me and it is checked out by a engineer.

From wot I can understand I can connect up a gas boiler provided I do not connect to gas and leave the rest to a engineer.

Or will I be doing you out of a job

OR will I need a plumber to connect the water

 

[littleleaks]

Not doing me out of a job quite simply you should not touch anything gas related unless you are competant, most rgi`s won`t sign off your pipework either. You can connect all pipework to the new boiler bar the gas. And tell me how will the rgi check your pipework if you have it buried behind the kitchen units.

 

[doitall]

I've always asked the question.

"If Condensing boilers are more efficient why do they need a bigger gas pipe"

 

[David937]

Our old boiler had a complete 22mm supply

Quite close to the meter too.

 

[simond]

Fascinating. Do tell us more.

 

[namsag]

Dont encourage him simond, he has become quite the expert now, perhaps he and JohnD will set up in business together . Called the BLB. LTD.

 

[David937]

Fascinating. Do tell us more.

Why are you so sarcastic?

If you don't have anything good to say just keep it shut.

 

[kevplumb]

why aint the OP involved in this discussion

 

[nashville]

why aint the OP involved in this discussion

Because after posting this question almost a year ago, the answers told me all I needed to know.

A lot has happened in the year since posting. Where have you been Kevplumb

 

[kevplumb]

err america oddly enough just outside of nashville

 

[spiv]

Thanks for some of the helpful replys guys

In reply to Littleleaks ' He will put on his exray glasses the same way he condemed the old pipe that was in a concrete floor'