plumbing a house including Radiators

[aes_handyman]

I am currently re wireing a house and  also re plumbing the water pipes, i am fully aware that i cant connect the gas up but I am competant enough to run the hot\cold water pipes, and the feeed\return to the boiler aswell as the cold feed, as long as he gets a gas safe plumber to do all the gas work is this ok to do i am planning on leaving him 4 pipes under the boiler c|h F\R and cold feed, hot out, my only question is what size pipes should i use under the boiler 22mm or 15?
cheers
jonny
aes handyman

 

[Mike Jackson]

Before you get too far find a gas safe registered installer that is willing to do the work for you and ask his advise.

 

[aes_handyman]

Before you get too far find a gas safe registered installer that is willing to do the work for you and ask his advise.

I Already have a gas safe engineer who will deal with all the gas pipes and connect it up all he wants me to do is run the cold feed and flow return + hot water pipes to under the boiler dothey need to be in copper so near the boiler and what diameter plz many thanks
Jonny

 

[Howsie]

Depends on the boiler.

 

[aes_handyman]

Depends on the boiler.

not quite sur



e what boiler he has but i i was to get al the water carriening pipes to the boiler location in 15mm if he needs he can put some expanders in to get 22mm init

 

[markfxy]

If you're competent then you'll already know the pipe sizes if you don't then you're incompetent.

 

[TomLane]

Surely if you're on good enough terms with a GSR who is willing to risk their professional status to allow you to do any pipework before the boiler and said GSR will do the last connections to the boiler & all gas work then you are able to contact him or have already spoken to him about pipe sizing?!?

Even my GSR states he does ALL pipe work on any work he does for me & I've known the guy for 20 years! It's not that he doesn't trust me it just ensures he knows 100% he can guarantee all pipe work being sized correctly & in the right place. This doesn't offend me, quite the opposite! He's the one that's put money, time & effort in becoming professional & highly competent GSR so I leave him to it.

Perhaps that's the best advice you can be given, leave it to your GSR!!

 

[Howsie]

not quite sur



e what boiler he has but i i was to get al the water carriening pipes to the boiler location in 15mm if he needs he can put some expanders in to get 22mm init

Not really but you crack on lad.

 

[dancinplumba]

Stick to handyman ing

 

[glenno1]

You will struggle to get that advice on here mate because we need to make a wage as well

 

[AlexGas]

It's not that he doesn't trust me it just ensures he knows 100% he can guarantee all pipe work being sized correctly & in the right place.

Also, … soldered correctly, so it’s not gonna pop off the following day and flood the house. Seen that before…

 

[AlexGas]

Needs to be pressure tested too!

 

[aes_handyman]

i can solder water pipes with my eyes closed i was just asking what diametre pipe he will want on the hot water and also on the feed and return, i have done plenty of plumbing in my time just never with a combi boiler inolved, my gsr just wants all the water pipes in the regioun of where the boiler is to be sited then he is going to fit the gas pipe, its not rocket science is it

 

[dancinplumba]

If its not rocket science why you asking ?

 

[aes_handyman]

Needs to be pressure tested too!

i Know but im not touching ANY GAS PIPE, Just the water,