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RV53i (VB2020FFU-US)

Tankless Water Heater

Rinnai's V53i interior-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.

ENERGY STAR® Qualified
Lightweight and Compact
Certified for Installation in Manufactured (Mobile) Homes
Pre-set at 120°F (adjustable to 140° by installer)
Natural Gas and Propane Models Available
Meets California and Texas NOx Emissions Standards
Energy Factor of .82 for Both Gas Types
Integrated Error Code Indicator
Compatible with Full Line of Rinnai Digital Controllers
Temperature Range with Controllers: 98°F - 140°F
10-Year Warranty on Heat Exchanger, 5 Year Parts, 1 Year Labor

Width: 13.88 Inches
Height: 23.60 Inches
Depth: 8.80 Inches

51 Pounds

Indoor, Residential Only

Hot Water Capacity
0.6 to 5.3 GPM at 45°F Rise

Approved Gas Types
Natural Gas or Propane

Minimum/Maximum Gas Rate (Input BTUs)
Natural Gas: 15,000 – 150,000 BTU
Propane: 15,000 – 150,000 BTU

Energy Factor
Natural Gas: 0.82
Propane: 0.82

Thermal Efficiency
Natural Gas: 84%
Propane: 84%

AC 120 Volts, 60 Hz

Electrical Consumption
Normal: 55 Watts
Standby: 2 Watts
Anti-Frost Protection: 184 Watts

Gas Connection
Gas Supply: ¾ Inch MNPT
Cold Water Inlet: ¾ Inch MNPT
Hot Water Outlet: ¾ Inch MNPT

Temperature Settings
120°F (factory default) or 140°
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