CANPEX OXY Barrier tubing is ideally suited for HRH applications. Its light weight and flexibility make installation of hydronic heat exchanger loops fast and easy. CB Supplies oxygen barrier tubing is used for hydronic applications where the total amount of oxygen ingress into the system must be limited. Its versatile design provides a solution for every project. Used in both residential and commercial construction projects, Vanguard's radiant heating systems can be used as either a primary or secondary heating source for floor warming or as a snow or ice-melt system.