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Rinnai R53e-NG (Item No. 610099)
Exterior, 5.3 GPM, Natural Gas, 80% Efficiency Tankless Water Heater

Product has been discontinued.
Please call us for a suitable alternate product.

Mon - Fri 8:30am - 5:00pm Central
This Rinnai R53e-NG 5.3 GPM Tankless Water Heater Exterior, 5.3 GPM, Natural Gas, Tankless Water Heater has some denting on the front cover. For detailed photos please click 'See Additional Images' above. This Rinnai R53e-NG 5.3 GPM Tankless Water Heater Exterior, 5.3 GPM, Natural Gas, Tankless Water Heater meets the full manufacturer's specifications, comes with the full manufacturer's warranty, and includes Alpine's premium guarantee.

For product specs and photographs of product in its original condition, click here.

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
  • Power vented forced combustion
  • Direct electronic ignition
  • Simulation feed forward and feed back
  • Water flow sensor, electronic water control device, fixed bypass
  • Boiling protection: 203°F
  • Automatic frost protection
  • Setpoint temperature: 120°F
  • Temperature range with MC Controller: 96°F to 140°F
  • 10-year heat exchanger / 5-year parts warranty

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