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Rinnai RUCS75IP Ultra Series Tankless Water Heater, White

by Rinnai
Sold out
$ 1,135.90
See more Rinnai tankless water heaters on their brand page

Rinnai Ultra Series Tankless Water Heaters deliver innovation and technological leadership in condensing tankless water heating design, while providing homeowners with an endless supply of hot water, energy savings, a space-saving design and environmental benefits. The NEW RUCS75i at 160,000 BTUs, available in natural gas and propane, offer condensing technology with lower to mid-range capacity at attractive price points. As the only manufacturer to offer both concentric and PVC/CPVC dual pipe venting options on the same unit, the RUCS models join the Ultra Series lineup of innovative designs and enduring values.

These new Rinnai RUCS/RUS Condensing Tankless Water Heaters expand Rinnai's Ultra Series condensing lineup to 6 models, in both indoor and outdoor versions, ranging from 130,000 to 199,000 BTU with efficiencies from .93 EF to .96 EF, providing the most complete condensing lineup in the industry.


    • ENERGY STAR® Qualified - Energy Factor up to .93
      • The RUCS75i, with a maximum of 160,000 BTU, can deliver 7.5 GPM of continuous hot water
        • Built-in status monitor; easily upgradable to MC-91-2 controller for remote operation
          • Temperature Range of 120°F - 140°F, with four convenient pre-set temperatures
            • Stylish white cabinet and matching cover panel
              • Quiet Operation: RUCS75 @ 55dB
                • High Altitude Approved up to 5,400 feet
                  • Ultra Low NOx Compliant
                    • Built-in freeze protection down to -22°F for indoor models and -4°F for outdoor models (gas/electricity required)
                      • Mobile Home Certified
                        • Fuel conversion kits available

                        Isolation Valves Sold Seperately

                        The Rinnai RUCS75iP 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: 18.5 inches (469.9 mm)
                        Height: 26 inches (660.4 mm)
                        Depth: 10 inches (254 mm)
                        Weight 57.3 lbs (26 kg)
                        Installation Type Indoor
                        Minimum/Maximum BTU 10,300 / 160,000 Natural Gas and Propane
                        Energy Factor 0.93 for Natural Gas and Propane
                        Temperature Range Residential Only: 120°F - 140°F (49°C - 60°C)
                        Minimum Activation Rate 0.4 gpm (1.5 lpm)
                        Flow Rate (70° / 50° Temperature Rise) 4.2 / 5.9 gpm (15.9 / 22.3 lpm)
                        Hot Water Flow Rate Range 0.26 - 7.5 gpm (0.98 - 28.4 lpm)
                        Controllers Standard: Status Monitor
                        Optional: MC-91-2US
                        Ultra Low NOx Yes
                        Warranty (Residential)* Limited 12-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 5,400 ft. (1,646 m)
                        Certifications AHRI, CSA, Energy Star®
                        Venting Options Concentric or PVC / CPVC
                        Tankless Rack System (TRS/TRW) Compatible No
                        1/2" Gas Line Compatible*** Yes


                        FTC Energy Guide