Hi. Would it cause any problems if i run a section of heating pipe in 15mm from the 8mm thats there. Its just i need to run through a tight space, through some joists and was going to use 15mm poly pipe for it. The boiler is a combi style. thanks tony
Don't listen to that ***** he's the lastest pest on this forum. Mate yes you can do that, you will need an 15mm x 8mm coupling remember to use the appropriate pipe inserts on the plastic for strength, you need an insert for every plastic connection compression and push fit. Take the plastic straight to the radiator.
Thanks for the help. Was going to keep copper for down the wall. As it looks better. Just happy using plastic just for the tight bends. Thanks for letting me know. tony