| ENERGY STAR Partner |
| A.O. Smith Corporation |
A.O. Smith Corporation |
| Brand Name |
| GSW WATER HEATERS |
GSW WATER HEATERS |
| Model Name |
| ATHR-180M 1** |
ATHR-160M 1** |
| Model Number |
| GTHR-180X3 1** |
GTHR-160X3 1** |
| Fuel Type |
| Natural Gas, Propane |
Natural Gas, Propane |
| Vent Type |
| Power Vent,Power Direct Vent |
Power Vent,Power Direct Vent |
| Storage Volume (gallons) |
| 1 |
1 |
| Maximum Gallons Per Minute |
| 5 |
4.8 |
| Minimum Gallons Per Minute |
| 1 |
1 |
| Draw Pattern (Intended Usage) |
| High-Usage |
High-Usage |
| Uniform Energy Factor (UEF) |
| 1 |
0.95 |
| Therms/year for Natural Gas |
| 178 |
178 |
| Gallons/year for Propane |
| 195 |
194.53 |
| Max. Input Rate for Gas Products (Btu/hr) |
| 180,000 |
160000 |
| Max. Amps |
| 5 |
5 |
| Recovery Efficiency (%) |
| 97 |
98 |
| Tank Height |
| 1 inches / 2.54 cm |
1 inches / 2.54 cm |
| Height to Vent |
| 1 inches / 2.54 cm |
1 inches / 2.54 cm |
| Tank Diameter |
| 1 inches / 2.54 cm |
1 inches / 2.54 cm |
| Vent Size |
| 3 inches / 7.62 cm |
3 inches / 7.62 cm |
| Vent Size 2 |
| 2 inches / 5.08 cm |
2 inches / 5.08 cm |
| Water Heater Depth |
| 16 inches / 40.64 cm |
16 inches / 40.64 cm |
| Water Heater Height |
| 27 inches / 68.58 cm |
27 inches / 68.58 cm |
| Water Heater Width |
| 17 inches / 43.18 cm |
17 inches / 43.18 cm |
| Connected Capable |
| No |
No |
| Date Available On Market |
| February 1, 2024 |
February 1, 2024 |
| Date Certified |
| December 18, 2023 |
December 18, 2023 |
| Markets |
| Canada |
Canada |
| CB Model Identifier |
| ES_92897_GTHR-180X3 1**_12152023003248_2441759 |
ES_92897_GTHR-160X3 1**_12152023003254_8207736 |
| 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 |
