d2 Boiler central heating system in staffordshirre

[SafeGasInstall]

any one has fitted a D2 as in plastic 22mm ? Please let me know what is called

 

[Koogatubac]

Uponor? I thought d2 in unvented had to be a rigid pipe such as copper inc high temp

 

[SafeGasInstall]

That is correct but this one will make my life a lot easy if I could run it in plastic pip work , I know there is on type that can be used ..... but I don't know which one

 

[Masood]

Polybutylene (PB), or Polyethylene cross-bonded (PE-X)

Class S of BS7291

 

[kozak1968]

As Masood says PB or PEX.. Just done the unvented re sit..... Chris Watkins is the expert on this if you want more info.

 

[kozak1968]

Trade names are John Guest, Polyplumb Hep20 ect

 

[SafeGasInstall]

so 22mm polyplumb will do?

 

[Destroyer2813]

If I remember the last discussion mate it had to be push fit waste not solvent and a dedicated pipe straight to the stack clipped every 300mm and marked up it was for unvented discharge and to have a hep trap inline

 

[gassafe]

Trade names are John Guest, Polyplumb Hep20 ect

I don't think you can use any of these... The updated regs allow plastic pipe, but only the push fit plastic waste, it can also go into a soil stack etc, a hepvo inline trap is also needed I think.

Alot of misunderstanding on the topic, maybe a technical type bulletin needs to be released on this reg update in one of the trade mags if your reading anyone...!!!

 

[kirkgas]

Uponor? I thought d2 in unvented had to be a rigid pipe such as copper inc high temp

You need to keep yourself up to speed with the current regs

 

[kirkgas]

I don't think you can use any of these... The updated regs allow plastic pipe, but only the push fit plastic waste, it can also go into a soil stack etc, a hepvo inline trap is also needed I think.

Alot of misunderstanding on the topic, maybe a technical type bulletin needs to be released on this reg update in one of the trade mags if your reading anyone...!!!

As long as everyone goes for their update assessment (haha, as I put on my tin hat) then they reckon they will update most people by 2014, but as we all know its everyone's duty to keep updated anyway, so maybe a TB would be good, but to be honest there are tons of qualified people who never go near the TB's, re-assessed a guy about 6 weeks ago who argued ( silly boy haha) that I was talking bovine excrement when I mention TB on FSD's for multi occupancy cookers, and how long has that been out?

 

[lame plumber]

I don't think you can use any of these... The updated regs allow plastic pipe, but only the push fit plastic waste, it can also go into a soil stack etc, a hepvo inline trap is also needed I think.

Alot of misunderstanding on the topic, maybe a technical type bulletin needs to be released on this reg update in one of the trade mags if your reading anyone...!!!

Discharge pipe should not to connect to a soil discharge pipe unless such pipe can withstand the high temperatures of discharge water; in which case it should: (a) contain a mechanical seal, not incorporating a water trap to prevent foul air from venting through the tundish; (b) be a separate branch pipe with no sanitary appliances connected to it. (c) where branch pipes are plastic they should be either polybutalene (PB) to class S of BS 7291-2:2006 or cross linked polyethylene (PE-X) to Class S of BS 7291-3:2006 and; (d) be continuously marked with a warning that no sanitary appliances can be connected to the pipe. NOTES: (i) Plastic pipes are to be joined and assembled with fittings appropriate to the circumstances in which they are used as set out in BS EN ISO 1043-1:2002.

according to regs you can use pex ie hep20 or equivalent which makes sense to me being its able to carry hot water upto 90 degrees.

 

[Koogatubac]

Thanks lame, ive got another year until i need to resit my unvented and ive heards theres been alot thats changed.

Even though ive got my unvented. I always read MI just to cover my back and double check.