First and foremost, it is important to understand that WETT inspectors do not have any authority to prevent you from using your wood appliance; an Inspectors sole purpose is to inspect and advise.
read details
An Uponor plumbing system features Engel-method crosslinked polyethylene (PEX) tubing. This is a flexible plastic tubing product that has been used for more than 35 years in radiant floor heating, plumbing and fire safety systems.
Uponor Controls and Poly pipe cladding on boiler copper lines