Rinnai V53eNG Natural Gas External Whole House Natural Gas Tankless Water Heater 5.3 Gallons Per Minute Less Isolation Valves

- Item #: BCI1840419

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Natural Gas
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  • Why Go Tankless Over a Tank Water Heater
    For your convenience Rinnai has provided this quick video about Tankless Water Heaters. This video will help you choose a Rinnai Tankless Water heater over a Tank Water heater.
  • What is a Rinnai Tankless Water Heater
    Rinnai tankless water heaters provide endless streams of clean, hot water to your whole house. It heats water only when you need it, saving you up to 40% on your energy bill.

Value Collection Natural Gas, External Whole House Tankless Water Heater with 5.3 GPM at 35° Rise for Two Bath Home

Rinnai's V53e exterior-mount tankless water heater efficiently delivers up to 5.3 gallons per minute (GPM) of hot water, making it perfect for your one- or two-bathroom home. This easy-to-install, ultra-compact unit lets you enjoy all the benefits of Rinnai tankless water heating. You'll experience clean, reliable hot water at a consistent pre-set temperature, while saving energy and precious floor space in your home.

Qualifies For Federal Tax Credit

A tankless water heater is an energy-efficient water heating system that heats water only when it’s needed. These space-saving, long-lasting water heaters provide an endless stream of clean, hot water for all your appliances simultaneously without temperature fluctuations. And all while saving you up to 40% in energy costs!


  • Appropriate for 2 Showers and 1 Sink
  • ENERGY STAR® Qualified
  • Lightweight and Compact
  • Certified for Installation in Manufactured (Mobile) Homes
  • Hot Water Capacity: 0.6 to 5.3 GPM @ 35° F Rise
  • 82% Thermal Efficiency
  • Natural Gas Fuel
  • Outdoor Installation Only
  • Pre-set at 120°F
  • 98° F to 140° F Temperature Range
  • Gas Rate Input BTU's: 19,000 - 120,000
  • Electronic Ignition
  • Unit Does Not Include Temperature Controller
  • Meets California and Texas NOx Emissions Standards
  • Integrated LED Error Code Indicator On Front Panel
  • Compatible with Full Line of Rinnai Digital Controllers
  • GSA Approved
  • 10-Year Warranty on Heat Exchanger, 5 Year Parts, 1 Year Labor


  • Width: 13-3/4"
  • Height: 20-7/8"
  • Depth: 6-3/4"
  • Weight: 34.2 lbs
  • Factory Set Temperature: 120°
  • Gas Connection: 3/4"
  • Water Connection: 3/4"

Additional Rinnai Links

Our SKU: Rinnai V53eNG

This product is listed under the following manufacturer number(s):

  • Rinnai V53eNG
    Natural Gas

*Denotes a finish or option that has been discontinued

Rinnai V53eNG Product Specifications

Specification Sheet
Owners Manual
CSA Approved Yes
Collection Value
Configuration Tankless Water Heater
Default Temperature 120
Depth 6.73
Direct Vent Yes
Energy Factor .82
Energy Star Yes
Fuel Type Natural Gas
Function Non-condensing
Gas Connection 3/4"
Height 20.86
Ignition Type Electronic
Indoor Installation No
Low Lead Compliant No
Maximum Flow Rate 5.3
Maximum Gas Input 120000
Minimum Flow Rate .6
Minimum Gas Input 19000
Natural Gas Pressure (Max) 10.5
Natural Gas Pressure (Min) 5
Natural Gas Thermal Efficiency 82%
Outdoor Installation Yes
Product Weight 35
Temperature (Max) 140
Temperature (Min) 98
UL Listed Yes
Voltage 120
Water Connection 3/4"
Water Pressure (Max) 150
Water Pressure (Min) 20
Width 13.78

Installation Resource Center

Whether you are installing the product yourself or hiring a professional, our installation Resource Center has everything you need to get your project done. Visit the Installation Resource Center to get started.

Rinnai V53eNG Reviews

  • #NAME?

    A. Thank you for your question. Yes, The Rinnai V53eNG is energy efficient. Please let me know if you have any other questions. I am happy to help. Have a great day!
  • Is there a step by step manual for installment? Could it be done without a plumber's help?

    A. The Rinnai V53eNG does include an instruction manual, but it is strongly recommended that this be installed by a professional plumber.
  • What is the part number for the correct isolation valves?


    The Rinnai V53eNG uses the WRIK-LF-F isolation valves.

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