Im installing a combi boiler and all radiators.
I would like to know what is the cheapest pipe to use that will look neat running down the wall and not shorten the life of my boiler. As I understand it:
1) Plastic pipe is cheap but allows ingress of oxygen unless you get stuff that's more expensive than copper once fittings are included.
2)copper pipe is the best most reliable but very expensive
Please could somebody advise a good product that matches my needs. Thanks in advance.