I need to replace my aged c/h system completely and wondered whether anyone knows of an 'enlightened' designer? One that embraces new products and technology. The last time I installed a system, some 20 years ago, I used a flexible plastic pipe system called Arbak which was so easy to use. Looking at the Hep20 pipe now and I see it comes in a barrier version - is this recommended for c/h pipes?
Any thoughts gratefully received
Rob