Rinnai Water Heater Manuals
Select your Rinnai model number below for installation steps, settings, maintenance schedules, troubleshooting and the full specification sheet. Your model number is printed on the rating plate.
Rinnai water heaters by model number
| Model | Description | Certified |
|---|---|---|
| (CX160I) REU-NB2530FFC-US | 160,000 Btu/h gas tankless water heater | January 2024 |
| (CX199I) REU-NB3237FFC-US | 199,000 Btu/h gas tankless water heater | January 2024 |
| (CXP160I) REU-NBP2530FFC-US | 160,000 Btu/h gas tankless water heater | January 2024 |
| (CXP199I) REU-NBP3237FFC-US | 199,000 Btu/h gas tankless water heater | January 2024 |
| (RX130I) REU-NB2024FF-US | 130,000 Btu/h gas tankless water heater | January 2024 |
| (RX160I) REU-NB2530FF-US | 160,000 Btu/h gas tankless water heater | January 2024 |
| (RX180I) REU-NB2934FF-US | 180,000 Btu/h gas tankless water heater | January 2024 |
| (RX199I) REU-NB3237FF-US | 199,000 Btu/h gas tankless water heater | January 2024 |
| (RXP160I) REU-NBP2530FF-US | 160,000 Btu/h gas tankless water heater | January 2024 |
| (RXP199I) REU-NBP3237FF-US | 199,000 Btu/h gas tankless water heater | January 2024 |
| REHP50 | 46-gallon heat pump water heater | March 2026 |
| REHP50BM | 46-gallon heat pump water heater | March 2026 |
| REHP50CREHP50 | 46-gallon heat pump water heater | March 2026 |
| REHP50CW | 46-gallon heat pump water heater | July 2026 |
| REHP50W | 46-gallon heat pump water heater | July 2026 |
| REHP65 | 60-gallon heat pump water heater | March 2026 |
| REHP65BM | 60-gallon heat pump water heater | March 2026 |
| REHP65C | 60-gallon heat pump water heater | March 2026 |
| REHP65CW | 61-gallon heat pump water heater | July 2026 |
| REHP65W | 61-gallon heat pump water heater | July 2026 |
| REHP80 | 75-gallon heat pump water heater | March 2026 |
| REHP80BM | 75-gallon heat pump water heater | March 2026 |
| REHP80CREHP80 | 75-gallon heat pump water heater | March 2026 |
| REHP80CW | 75-gallon heat pump water heater | July 2026 |
| REHP80W | 75-gallon heat pump water heater | July 2026 |