10mm plastic pipe for boiler

[AWheating]

10mm is fine for small to med sized rads( like on new build) with a run less than 5m from manifold/ larger pipework.

its all down to buget in the end, your the customer and if you want a certain thing and want to pay for it then thats what you should fit.

 

[cdodds2004]

15mm and 22mm for the win for sure! I use 10mm in places and don't mind plstic aslong as no joints buried etc.

BUT in my own house i fitted full system in 15/22