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Rinnai E Series 50000-BTU Natural Gas Boiler

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Awarded the energy star most efficient mark in 2016 – up 95.5% AFUE
A modulating pump varies the flow of water (GPM) to maximize efficiency
Flexible venting options with approved concentric, PVC, CPVC, stainless steel, polypropylene (rigid and flex), for single-pipe exhaust, room air and two-pipe systems

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Awarded the energy star most efficient mark in 2016 – up 95.5% AFUE
A modulating pump varies the flow of water (GPM) to maximize efficiency
Flexible venting options with approved concentric, PVC, CPVC, stainless steel, polypropylene (rigid and flex), for single-pipe exhaust, room air and two-pipe systems
Approved for room and closet installations (zero clearance to combustibles)
Outdoor reset sensor included (in the box)
Complies with South Coast Air Quality Management District 14 ng/J or 20 ppm NOx emission levels
Professional installation recommended
Residential warranty: 12-year on heat exchanger, 2-year on parts, 1-year on labor
Commercial warranty: 5-year on heat exchanger, 2-year on parts, 1-year on labor