Takagi T-KJr Tankless Water Heater (also known as Takagi Jr). Free set of service valves and a pressure relief valve are included. Perfect for domestic hot water applications in smaller residential homes or apartments with 1-2 bathrooms and can replace a 40-gallon standard storage tank-type water heater. Takagi Jr can also be used for residential heating applications.
ASTM International develops international standards for materials, products, systems and services used in construction, manufacturing and transportation. ASTM standard specifications and test methods define uniform requirements and procedures.
The Plastics Pipe Institute (PPI) is the trade association representing the plastic pipe industry. Site includes technical information about the use of plastic pipe for water, drainage, fuel gas, conduits, plumbing, and heating. Membership rosters available for all pipe divisions.
PEX Tubing, Pipe PVC fittings. PEX tubing has also become the most popular way to transport water in hydronic radiant heating systems. PEX tubing with an oxygen barrier must be used when ferrous components are present in a radiant heating system.