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Spec Sheet Install Manual

Current RL and 4 of the V models will be discontinued and replaced with the New RE•SERIES™ Non-Condensing models including the REP models with a Built-In Pump and Smart-Circ™ Intelligent Recirculation™

Rinnai has been manufacturing top quality water heaters since 1921, and they have quickly become the number one seller of tankless water heaters in the United States and Canada. Rinnai's water heaters save homeowners money by only heating water when needed, and tankless water heaters save space due to their small size compared to a tank water heater. Other models have the ability to save more money by recirculating hot water heating it to the right temperature instead of always heating cold water.


  • ENERGY STAR® Qualified through 2016
  • Energy Factor of .82 for Natural Gas and Propane
  • Certified for Installation in Manufactured (Mobile) Homes
  • Enhanced scale detection lessens possibility of serious, long-term damage to unit
  • Temperature lock prevents accidental or unauthorized changes to water temperature
  • Complies with South Coast Air Quality Management District 14 ng/J or 20 ppm NOx emission levels

Isolation Valves Sold Seperately

Jomar Tankless Water Heater Valves 810-504G

The Rinnai V65iN requires isolation valves during installation. This valve kit includes hot and cold water shut-off valves, hot and cold water drain valves, and an ANSI approved pressure relief valve. Use of these valves will allow flushing of the heat exchanger and aid in servicing and troubleshooting of your Rinnai. You can purchase them with your water heater above or separately.


Dimensions Width: 14 Inches (355.6 mm)
Height: 23 Inches (584.2 mm)
Depth: 9 Inches (228.6 mm)
Weight 45.6 lbs (20.7 kg)
Installation Type Indoor
Minimum/Maximum BTU 10,300 / 150,000 Natural Gas
Energy Factor 0.82 for Natural Gas
Temperature Range Residential Only: 98°F - 140°F (37°C - 60°C)
Minimum Activation Rate 0.4 gpm (1.5 lpm)
Flow Rate (70° / 50° Temperature Rise) 3.6 / 5.0 gpm (13.6 / 18.9 lpm)
Hot Water Flow Rate Range 0.26 - 6.5 gpm (0.98 - 24.6 lpm)
Controllers Standard: MC-91-2US
Optional: MC-100-1, BC-100V-1
Ultra Lox NOx Yes
Warranty (Residential)* Limited 10-year on heat exchanger, 5-year on parts, 1-year on labor
Warranty (Commercial)* Residential Only
Mobile Home Certified Yes
Valves Shipped in Box No
High Altitude Approved Up to 10,200 ft. (3,109 m)
Certifications AHRI and CSA
Venting Options Concentric
Tankless Rack System (TRS/TRW) Compatible No
1/2" Gas Line Compatible Yes

Rinnai is continually updating and improving products; therefore, specifications are subject to change without prior notice. Local, state, provincial and federal codes must be adhered to prior to installation.

* It is recommended that a trained and qualified professional who has attended a Rinnai training class complete the installation. The warranty may be voided due to any improper installation.
— Installation and service must be performed by a licensed professional.

Installation Type:
Indoor Only

Fuel Type:
Natural Gas

Energy Star Rated:

BTU (Max):

BTU (Min):

Energy Factor:

Temperature Range (F):
98°F to 140°F

Flow Range (GPM):
0.26 - 6.5


Vent Type:


Flow Rate at 70F Temp Rise (GPM):

Flow Rate at 40F Temp Rise (GPM):

Flow Rate at 60F Temp Rise (GPM):

Flow Rate at 50F Temp Rise (GPM):


Gas Connection:

Hot Water Outlet (NPTF):

Cold Water Inlet (NPTM):

Height (Inches):

Width (Inches):

Depth (Inches):

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