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kozak1968

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Gas Engineer
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Can we use Polyplumb PB for unvented discharge or is it only PEX plastic as an alternative to copper.
 
As far as I know its push fit as long as the manufacturer says its suitable . I stand to be corrected !!
 
No can't use plastic push fit pipe eg 15-22mm etc Needs to be high temp rated eg 100-110c

Either copper or waste pipe
 
I remember Chris Watkins saying about it on the G3 course but would like clarification of it. It would help out on some new build we are doing.
 
It appears that Polyplumb pipe is BS 7291 - 1 2010 which is suitable for unvented discharge pipe.
 
It appears that Polyplumb pipe is BS 7291 - 1 2010 which is suitable for unvented discharge pipe.

That's for supply and hot distribution
 
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