Durable primary heat exchanger is made of commercial-grade copper while the secondary heat exchanger is made of Type 316L stainless steel, preventing corrosion and prolonging the life of the heater
Can be vented using ULC S636 PVC, CPVC, polypropylene pipe or Cat. III/IV stainless steel
Available inputs: 160,000, 180,000 and 199,000 BTU
540P model with integrated recirculation pump
15-year limited heat exchanger warranty and 5-year limited parts warranty