I know from other posts that at least 300mm of copper pipe must be used when connecting plastic pipework to a boiler, but what if you are just running pipes from the hot water Cylinder past the boiler, and not connecting to it. Can I run plastic pipe and plastic pushfit connections? or should it be copper and compression? Pipework will pass within 100mm of HW cylinder and 200mm of the boiler.
Many thanks
Many thanks