Rinnai Ultra Series Tankless Water Heaters deliver innovation and technological leadership in condensing tankless water heating design. The NEW RUC90i available in natural gas, offerS an additional BTU option at energy savings, a space saving design and environmental benefits. These condensing units will have a maximum flow rate of 9.0 gallons per minute, increasing the choices for Ultra series condensing applications. From one project to the next, with Rinnai’s Ultra Series Tankless Water Heaters, the freedom of choice is yours.
- Min. BTU Input – 15,200
- Max. BTU Input – 180,000
- Warranty (Residential) – Limited 12-year on heat exchanger, 5-year on parts, 1-year on labor (5-year optional on labor)
- Warranty (Commercial) – Limited 5-year on heat exchanger, 5-year on parts, 1-year on labor (2-year optional on labor)