Rinnai water heaters
30 basic models and 42 listed models.
Certified figures by basic model
| Basic model | Type | Storage volume (gal) | UEF | Flow at a 67°F rise (gal/min) | First-hour rating (gal) | Recovery efficiency | Model numbers |
|---|---|---|---|---|---|---|---|
| (RUCS65I) REU-KCM2025FFU-US | Gas tankless | — | 0.85 | 3.7 | — | 87% | (RUCS65I) REU-KCM2025FFU-US |
| (RUCS75I) REU-KCM2528FFU-US | Gas tankless | — | 0.90 | 4.5 | — | 92% | (RUCS75I) REU-KCM2528FFU-US |
| (RX130I) REU-NB2024FF-US | Gas tankless | — | 0.97 | 3.8 | — | 98% | (RX130I) REU-NB2024FF-US |
| (RX160I) REU-NB2530FF-US | Gas tankless | — | 0.97 | 4.6 | — | 98% | (CX160I) REU-NB2530FFC-US, (CXP160I) REU-NBP2530FFC-US, (RX160I) REU-NB2530FF-US, (RXP160I) REU-NBP2530FF-US |
| (RX180I) REU-NB2934FF-US | Gas tankless | — | 0.98 | 5.3 | — | 98% | (RX180I) REU-NB2934FF-US |
| (RX199I) REU-NB3237FF-US | Gas tankless | — | 0.98 | 5.8 | — | 99% | (CX199I) REU-NB3237FFC-US, (CXP199I) REU-NBP3237FFC-US, (RX199I) REU-NB3237FF-US, (RXP199I) REU-NBP3237FF-US |
| (V75I)REU-VC2528FFU-US | Gas tankless | — | 0.82 | 4.0 | — | 84% | (V75I)REU-VC2528FFU-US |
| RE140E (REU-VE1720WD-US) | Gas tankless | — | 0.81 | 3.2 | — | 83% | RE140E (REU-VE1720WD-US) |
| RE140I (REU-VE1720FFD-US) | Gas tankless | — | 0.81 | 3.1 | — | 83% | RE140I (REU-VE1720FFD-US) |
| RE160E (REU-VE2125WD-US) | Gas tankless | — | 0.81 | 3.7 | — | 83% | RE160E (REU-VE2125WD-US), REP160E (REU-VEP2125WD-US) |
| RE160I (REU-VE2125FFD-US) | Gas tankless | — | 0.81 | 3.5 | — | 83% | RE160I (REU-VE2125FFD-US), REP160I (REU-VEP2125FFD-US) |
| RE180E (REU-VE2432WD-US) | Gas tankless | — | 0.82 | 4.2 | — | 82% | RE180E (REU-VE2432WD-US) |
| RE180I (REU-VE2432FFD-US) | Gas tankless | — | 0.82 | 4.1 | — | 83% | RE180I (REU-VE2432FFD-US) |
| RE199E (REU-VE2737WD-US) | Gas tankless | — | 0.82 | 4.7 | — | 82% | RE199E (REU-VE2737WD-US) |
| RE199I (REU-VE2737FFD-US) | Gas tankless | — | 0.82 | 4.6 | — | 83% | RE199I (REU-VE2737FFD-US) |
| REHP50BM | Heat pump | 46 | 3.75 | — | 73 | 465% | REHP50, REHP50BM, REHP50C |
| REHP50W | Heat pump | 46 | 3.75 | — | 71 | 420% | REHP50W |
| REHP65 | Heat pump | 60 | 3.90 | — | 80 | 450% | REHP65 |
| REHP65BM | Heat pump | 60 | 3.90 | — | 80 | 450% | REHP65BM |
| REHP65C | Heat pump | 60 | 3.90 | — | 80 | 450% | REHP65C |
| REHP65W* | Heat pump | 61 | 4.00 | — | 80 | 450% | REHP65W* |
| REHP80BM | Heat pump | 75 | 4.00 | — | 91 | 454% | REHP80, REHP80BM, REHP80C |
| REHP80W | Heat pump | 75 | 4.00 | — | 91 | 450% | REHP80W |
| REP199E (REU-VEP2730WD-US) | Gas tankless | — | 0.81 | 4.9 | — | 82% | REP199E (REU-VEP2730WD-US) |
| REP199I (REU-VEP2730FFD-US) | Gas tankless | — | 0.82 | 4.8 | — | 84% | REP199I (REU-VEP2730FFD-US) |
| RETL12 | Electric tankless | — | 0.99 | 1.2 | — | 99% | RETL12 |
| US3-RSJ-15/190RDVN3-L4 | Heat pump | 46 | 3.75 | — | 71 | 420% | REHP50CW |
| US3-RSJ-15/250RDVN3-L4 | Heat pump | 61 | 4.00 | — | 80 | 450% | REHP65CW* |
| US3-RSJ-15/300RDVN3-L4 | Heat pump | 75 | 4.00 | — | 91 | 450% | REHP80CW |
| V53DE (REU-AM1620WD-US) | Gas tankless | — | 0.81 | 3.0 | — | 83% | V53DE (REU-AM1620WD-US) |
A range means the models under one basic model differ. A dash means the model has no such figure.
Per unit of energy, its heat into water, or UEF, reaches 4.00. This UEF belongs to a heat pump, which moves heat from the air. The REHP65W* is one of 5 basic models with that UEF. Its basic models with an ENERGY STAR certified model number come to 15 of 30.
This brand lists 3 kinds: gas tankless, heat pump, and electric tankless. The gas tankless group holds 18 of its 30 basic models. Of its tanks, 3 share the highest first-hour rating: 91 gallons. In the test, a full tank reheats while those 91 gallons are drawn. This brand's highest tankless flow belongs to the (RX199I) REU-NB3237FF-US. That flow is 5.8 gallons per minute for water warmed by 67°F.
On this site, 23 of the 117 brands list more model numbers than Rinnai's 42. This brand and Midea list one or more of the same basic model numbers. Of this brand's 30 basic model numbers, 3 are listed there too.
Basic models shared with other brands
| Brand | Shared basic models |
|---|---|
| Midea | 3 |