| BTS 175 2** | BTH 251* 3** |
|---|---|
| ENERGY STAR Partner | |
| A.O. Smith Corporation | A.O. Smith Corporation |
| Product Category | |
| Commercial Water Heaters | Commercial Water Heaters |
| Type | |
| Gas Storage | Gas Storage |
| Brand Name | |
| A. O. Smith | A. O. Smith |
| Model Name | |
| Polaris | BTH 251* 3** |
| Model Number | |
| BTS 175 2** | BTH 251* 3** |
| Date Available On Market | |
| February 15, 2017 | September 1, 2020 |
| Date Certified | |
| November 9, 2021 | November 9, 2021 |
| Markets | |
| United States | United States |
| CB Model Identifier | |
| ES_92897_BTS 175 2**_10202020013929_2549407 | ES_92897_BTH 251* 3**_09042020125229_1015198 |
| Meets ENERGY STAR Most Efficient 2024 Criteria | |
| No | No |
| Fuel Type | |
| Gas,Propane | Gas,Propane |
| Vent Type | |
| Power Direct Vent | Power Direct Vent |
| Storage Volume (gallons) | |
| 50 | 119 |
| Tank Height | |
| 63.7 inches / 161.80 cm | 62.9 inches / 159.77 cm |
| Height to Vent | |
| 6.6 inches / 16.76 cm | 11 inches / 27.94 cm |
| Tank Diameter | |
| 22 inches / 55.88 cm | 24 inches / 60.96 cm |
| Vent Size | |
| 3 inches / 7.62 cm | 3 inches / 7.62 cm |
| Input Rate - Gas-fired (kBtu/hr) | |
| 175 | 250 |
| Thermal Efficiency (TE) | |
| 1 | 0.96 |
| Standby Loss (Btu/hr) | |
| 800 | 1200 |
| Date Qualified | |
| November 9, 2021 | November 9, 2021 |
Compare A.O.SMITH - BTS 175 2** With Other 33 Models
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- BTS 175 2** vs PWH2000(N,L)(P)(-CAN)
- BTS 175 2** vs PWH3000(N,L)(P)(-CAN)
- BTS 175 2** vs PWH4000(N,L)(P)(-CAN)
- BTS 175 2** vs BTH 251* 3**
- BTS 175 2** vs BTH 400* 3**
- BTS 175 2** vs BTH 300* 3**
- BTS 175 2** vs BTH 250* 3**
- BTS 175 2** vs BTH 199* 3**