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Rinnai C53e-N (REU-V2020WC-US-N)
Commercial, Exterior, 5.3 GPM, Natural Gas, 80% Efficiency Tankless Water Heater

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Experience a never-ending supply of fresh hot water with this energy-efficient water heating system that uses a gas-powered heat exchanger to heat water.  Compact in size, Rinnai's innovative tankless technology heats water only as needed when water flow is detected, resulting in endless hot water.  Unlike traditional tank systems, the Rinnai system can deliver hot water to multiple water sources simultaneously at a constant user-set temperature.


•Temperature controlled, continuous flow, gas hot water system
•Direct vented forced combustion
•Direct electronic ignition
•Simulation feed forward and feed back
•Water flow sensor, electronic water control device, no bypass
•Flame rod
•Boiling protection: 210°F
•Automatic frost protection
•Setpoint temperature: 140°F
•Temperature range with included MC Controller: 120°F to 185°F
•Meets California and Texas NOx Emission Rules
•Five-year heat exchanger / five-year parts warranty


Instructions & Brochures

Rinnai R42e & R53e Installation Instructions (PDF, 4.98 MB)
Rinnai Hot Water System Design Manual (pdf, 1.15 MB)
Rinnai C53e Spec Sheet (pdf, 152 KB)
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(800) 865-5931
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1901 N. Clybourn Avenue
Suite 200
Chicago, IL 60614
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