

Rinnai's V53eP exterior mounted tankless water heater delivers up to 5.3 gallons of hot water per minute efficiently, making it perfect for houses that have one or two bathrooms. This ultra-compact, easy-to-install unit lets you enjoy all of the benefits that come with Rinnai's tankless water heating. You will experience reliable, clean hot water at a consistent temperature you pre-set, while saving precious floor space and energy in your home.
Features
• ENERGY STAR Qualified
• Certified for installation in mobile homes
• Lightweight and compact
• Meets Texas and California NOx emission standards
• Propane and natural gas models available
• Compatible with a full range of Rinnai digital controllers
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Value Series Warranty Warranty (some restrictions apply) Heat exchanger: 10 years for residential and/or space heating use; 12 years for residential use if installed with an isolation valve kit All other parts: 5 years Labor: 1 year residential |
Click here for more information about the warranty.
Temperature rise (or delta T) in °F at various flow rates
Feature Table
Model* |
Capacity |
Input BTUs |
Hot Water Capacity |
Energy |
Energy Use |
Temperature Settings |
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Normal, |
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Min |
Max |
Activation | Min | Max | Indoor model |
Outdoor model |
Residential |
Commercial** |
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Value Series - Value and comfort for small to medium homes | |||||||||||
V53eN V53eP |
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19 (N) 20.2 (P) |
120 | 0.6 | 0.6 | 5.3 | 0.82 |
55 Watts, 2 Watts, 184 Watts |
33 Watts, 2 Watts, 74 watts |
120°F - 140°F | Residential only |
V65iN V65iP V65eN V65eP |
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10.3 | 150 | 0.4 | 0.26 | 6.6 | 0.82 | 76 Watts, 2 Watts, 120 Watts |
57 Watts, 2 Watts, 104 Watts |
98°F - 140°F | 98°F - 160°F (indoor) 98°F - 185°F (outdoor) |
V75iN V75iP V75eN V75eP |
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10.3 | 180 | 0.4 | 0.26 | 7.5 | 0.82 | 76 Watts, 2 Watts, 120 Watts |
57 Watts, 2 Watts, 104 Watts |
98°F - 140°F | 98°F - 160°F |
Luxury Series - High output for larger homes | |||||||||||
RL75iN RL75iP RL75eN RL75eP |
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10.3 | 180 | 0.4 | 0.26 | 7.5 | 0.82 | 76 Watts, 2 Watts, 104 Watts |
57 Watts, 2 Watts, 104 Watts |
98°F - 140°F | 98°F - 160°F |
RL94iN RL94iP RL94eN RL94eP |
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10.3 | 199 | 0.4 | 0.26 | 9.8 | 0.82 | 97 Watts, 2 Watts, 184 Watts |
65 Watts, 2 Watts, 104 Watts |
98°F - 140°F | 98°F - 185°F |
Ultra Series - Ultimate efficiency, largest capacity |
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RU80iN RU80iP RU80eN RU80eP |
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15.2 | 152 | 0.4 | 0.26 | 8 | 0.96 | 42 Watts, 2 Watts, 146 Watts |
41 Watts, 2 Watts, 168 Watts |
98°F - 140°F | 98°F - 185°F |
RU98iN RU98iP RU98eN RU98eP |
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15.2 | 199 | 0.4 | 0.26 | 9.8 | 0.95 | 64 Watts, 2 Watts, 146 Watts |
63 Watts, 2 Watts, 168 Watts |
98°F - 140°F | 98°F - 185°F |
* e = Exterior/Outdoor; i = Interior/Indoor; N = Natural Gas; P = Liquid Propane
** Commercial controller must be purchased separately
Technical Specifications:
→Type of Appliance: Temperature controlled, continuous flow, gas hot water system for residential application
→Rinnai model number: REU-VAM1620W
→Operation: With or without remote controls (controller not included; error codes displayed on front panel LED indicator
→Exhaust System: Forced combustion
→Minimum/Maximum Gas Rate (Input): 20,200-120,000 BTU/h (Propane); 19,000-120,000 BTU/h (Nat.Gas)
→Electrical: Appliance: AC 120 Volts - 60 Hzm Remote Controller (Optional): DC 12 Volts
→Electrical Consumption: Normal: 33 watts. Standby: 2 watts. Anti-frost protection: 74 watts.
→Ignition System: Direct electronic ignition
→Hot Water Capacity: 0.6 to 5.3 GPM at a 35°F rise
→Temperature: 98°F - 140°F (when using optional controller)
→Temperature (without remote): 120°F (factory default) or 140°F
→Approved Gas Types: Natural or Propane (ensure unit matches gas type)
→Installation: Outdoor only; residential only
→Energy Factor (EF): Natural Gas: 0.82 Propane: 0.82
→Service Connections Natural Gas: Gas supply: 3/4 inch MNPT. Cold water inlet: 3/4 inch MNPT. Hot water outlet: 3/4in, MNPT.
→Water Flow Control: Water flow sensor, electronic water control device and fixed by-pass
→Minimum/Maximum Water Supply Pressure: 20 - 150 PSI (30-80 PSI for maximum performance)
→Water Temperature Control: Simulation feed forward and feedback
→Remote Controller (Optional): MC-91-2US, Deluxe controller: MC-100V-1US, Bathroom controller: BC-100V-1US, 98°-140°F
→Controller Cable: Non-polarized two-core cable, minimum 22 AWG
→Safety Devices: •Flame failure - Flame Rod •Boiling protection •Combustion fan rpm check •Over current - glass fuse •Remaining flame (OHS) •Thermal fuse, •Automatic frost protection
→Clearances from Combustibles: •Top of heater - 12 inches, •Front (Panel) - 24 inches, •Front (Exhaust) - 24 inches, •Back of heater - 0 inches, •Bottom of heater - 12 inches, •Sides of heater - 6 inches,
→Clearances from Non-combustibles,* 24 inches required for serviceability: •Top of heater - 2 inches, •Front (Panel) - 0 inches *, •Front (Exhaust) - 24 inches, •Back of heater - 0 inches, •Bottom of heater - 2 inches, •Sides of heater - 1/8 inch
→Min. / Max. Gas Supply Pressure: Natural Gas: min 5” W.C. max 10.5” W.C., Propane Gas: min 8” W.C. max 13.5” W.C.
→Manifold Gas Pressure (inches W.C.): Natural Gas: high fire 2.50” W.C. low fire 0.73” W.C., Propane Gas: high fire 2.40”W.C. low fire 0.75” W.C.
→Front cover material: Powder coated galvanized steel
Dimensions
Measurement in inches (millimeters)
• Weight: 34.2 lbs
Documents
• Installation and Operation Manual
• Warranty Information
• Detailed Specifications
• Hot Water Design Manual
Frequently Asked Question
Q1: Can this heater be used with 1/2" pipe?
A1: The normal connection for both gas and water supply is 3/4" MNPT. For gas, you can use other pipe sizes as long as you maintain between 8 and 13.5" of water column. For water, you can use other pipe sizes; but since that will affect your flow rate, your output water temperature will be different from the calculations shown with 3/4" MNPT.
Installation Help and Recommendations
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