| ENERGY STAR Partner |
| Rinnai America Corporation |
Rinnai America Corporation |
| Brand Name |
| Rinnai |
Rinnai |
| Model Name |
| CU199e (REU-N3237WC-US) |
(RXP199I) REU-NBP3237FF-US |
| Model Number |
| CU199E (REU-N3237WC-US) |
(RXP199I) REU-NBP3237FF-US |
| Fuel Type |
| Natural Gas, Propane |
Natural Gas, Propane |
| Vent Type |
| Direct Vent |
Power Direct Vent |
| Maximum Gallons Per Minute |
| 6 |
5.8 |
| Minimum Gallons Per Minute |
| 0 |
0.1 |
| Draw Pattern (Intended Usage) |
| High-Usage |
High-Usage |
| Uniform Energy Factor (UEF) |
| 1 |
0.98 |
| Therms/year for Natural Gas |
| 178 |
173 |
| Gallons/year for Propane |
| 195 |
189.07 |
| Max. Input Rate for Gas Products (Btu/hr) |
| 199,000 |
199000 |
| Max. Amps |
| 4 |
4 |
| Vent Size |
| 1 inches / 2.54 cm |
2 inches / 5.08 cm |
| Water Heater Depth |
| 11.5 inches / 29.21 cm |
11.4 inches / 28.96 cm |
| Water Heater Height |
| 26.4 inches / 67.06 cm |
25.8 inches / 65.53 cm |
| Water Heater Width |
| 18.5 inches / 46.99 cm |
18.5 inches / 46.99 cm |
| Connected Capable |
| No |
No |
| Date Available On Market |
| May 15, 2022 |
January 18, 2024 |
| Date Certified |
| April 11, 2023 |
January 25, 2024 |
| Markets |
| United States, Canada |
United States, Canada |
| CB Model Identifier |
| ES_97439_CU199E (REU-N3237WC-US)_04052023093732_3349877 |
ES_97439_(RXP199I) REU-NBP3237FF-US_01212024003107_1517776 |
| Tax Credit Eligible |
| Yes |
Yes |
| Product Category |
| Water Heaters - Non Solar Electric and Non Solar Gas |
Water Heaters - Non Solar Electric and Non Solar Gas |
| Type |
| Gas Tankless |
Gas Tankless |
| Meets ENERGY STAR Most Efficient 2024 Criteria |
| No |
No |
