| ENERGY STAR Partner |
| A.O. Smith Corporation |
A.O. Smith Corporation |
| Brand Name |
| RELIANCE WATER HEATERS |
RELIANCE WATER HEATERS |
| Model Name |
| T-H3-OS-N 1** |
Heat Pump |
| Model Number |
| TS-540X3-GEH 1** |
6-66-DHPHT 1** |
| Fuel Type |
| Natural Gas |
Electric |
| Vent Type |
| Power Vent |
N/A |
| Maximum Gallons Per Minute |
| 6 |
N/A |
| Minimum Gallons Per Minute |
| 1 |
N/A |
| Draw Pattern (Intended Usage) |
| High-Usage |
High-Usage |
| Uniform Energy Factor (UEF) |
| 1 |
3.42 |
| Therms/year for Natural Gas |
| 178 |
N/A |
| Gallons/year for Propane |
| 195 |
N/A |
| Max. Input Rate for Gas Products (Btu/hr) |
| 199,000 |
N/A |
| Max. Amps |
| 5 |
22 |
| Vent Size |
| 3 inches / 7.62 cm |
N/A |
| Water Heater Depth |
| 11 inches / 27.94 cm |
N/A |
| Water Heater Height |
| 22 inches / 55.88 cm |
N/A |
| Water Heater Width |
| 18 inches / 45.72 cm |
N/A |
| Connected Capable |
| No |
No |
| Date Available On Market |
| October 29, 2018 |
April 5, 2019 |
| Date Certified |
| February 23, 2023 |
February 23, 2023 |
| Markets |
| United States, Canada |
United States |
| CB Model Identifier |
| ES_92897_TS-540X3-GEH 1**_02212023100204_515693 |
ES_92897_6-66-DHPHT 1**_02222023141811_9394284 |
| 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 |
Heat Pump |
| Meets ENERGY STAR Most Efficient 2024 Criteria |
| No |
No |
