Plastic or Copper Pipes for Radiators? | Screwfix Community Forum
KIAB said: ↑. Drawbacks/disadvantages of plastic pipe, rats/mice gnawing them, failed fittings (might be less of a problem now) fittings pulling apart where pipe is unsupported,bulky fittings, & brittleness if exposed to excessive high temperature. For appearance if pipes are on show,say to a radiator, then nice straight copper runs every time.