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[I_want_an_Omega]

I have a question about what's good practice when installing heating pipework.

Was poking around under a floor and have found where the installers have routed the main flow and return 28mm pipes to the (conventional) boiler in my fully pumped system.

The pipes are separated and insulated over the majority of their length - except for a 2 foot section where they run through a thick wall. The pipes are uninsulated, but are also touching along this short section.

Almost looks as if it's been done deliberately.


Any comments please?

[skyblue]

PM Millwall, as im sure this is his line of work

[I_want_an_Omega]

ta

[Bionic]

Well, you will soon know if they start to leak and the 'plumber' goes directly to the leaking area!
Seriously now! No pipes should touch each other. As they are copper they will expand and contract under temperature changes and so rub together causing wear over a long (maybe short) period of time enough to make them leak.
Where they go through a wall or whatever they are usually put through a plastic sleeve which bis inserted first and has a few mm's gap for pipe expansion.
Sounds like a real undercutting wally did yours.....probably even local council and wev all know how bad their work can be. In Leicester they now use outside contractors who carry real certs! Not the 6 month wonders they trained and then found they were costing them a fortune.....
Its easy enough to do it yourself m8 with a bit of guidance. Give it a go and save the coin you work hard for....

[I_want_an_Omega]

Fair comment, but where they go through another wall they are separate and each pipe is inside another larger one for protection.

What I forgot to mention is that the whole bundle is well wrapped in insulation - with just these 2 pipes touching - and it looks deliberate.

Was just wondering if there was a reason or it was a bodge @ the time.

[Bionic]

As before m8, there would be no reason why it should have been done like that. Only thing I can think that it may have been done for was that the pipes had started to 'rattle' due to air locking or similar and so by wrapping them like that it stopped it. Not the right way to reslove a problem like that, if it was, but it would probably work.
 

[millwall]

pm sent robert  let me know if i can be of any more help

[I_want_an_Omega]

Good outcome. 

Have finally got round to having the new boiler installed the plumber had factored in re-doing all this & as the walls are 2 foot thick stone it wasn't an insignificant task.

He chipped away at the cement edging and discovered that the pipes were all sleeved - but for some reason a cement edging had been added making it look as if there was no sleeving.

No disruption and a days labour saved