Commercial water heatersENERGY STAR certified
A. O. Smith BTHS 750A 1**
750 kBtu/h gas storage-type instantaneous water heater.
Input rate
750 kBtu/h
Storage
120 gal
Thermal efficiency
0.97
Fuel
Gas, Propane
Of 43 certified gas storage-type instantaneous commercial water heaters, 5 have a higher thermal efficiency than the BTHS 750A 1** (0.97).
- Maker
- A. O. Smith
- Model
- BTHS 750A 1**
- Type
- Gas Storage-type Instantaneous
- Fuel
- Gas, Propane
- Storage
- 120 gal
- Thermal efficiency
- 0.97
- Input rate
- 750 kBtu/h
- Standby loss
- 1,700 Btu/h
- Vent
- Power Vent
- On the market since
- Aug 2020
- ENERGY STAR certified
- 10 Aug 2026
Source: ENERGY STAR certified commercial water heaters dataset, US EPA, record 4687335, data build 2026-09-29. Figures are as the maker certified them. How we use this data.
Other makers
Machines comparable to the BTHS 750A 1**
Certified commercial water heaters from other makers, same color class, within 20% of its speed.
| Model | Type | Fuel | Storage | Input rate |
|---|---|---|---|---|
| State SUS 120 750NEA 1** | Gas Storage-type Instantaneous | Gas | 120 gal | 750 kBtu/h |
| State SUS 120 750PEA 1** | Gas Storage-type Instantaneous | Propane | 120 gal | 750 kBtu/h |
| BOCK OT800*-A | Gas Storage-type Instantaneous | Gas, Propane | 130 gal | 800 kBtu/h |
| BOCK OT700*-A | Gas Storage-type Instantaneous | Gas, Propane | 130 gal | 700 kBtu/h |
| BOCK OT900*-A | Gas Storage-type Instantaneous | Gas, Propane | 130 gal | 900 kBtu/h |
| BOCK OT600*-A | Gas Storage-type Instantaneous | Gas, Propane | 130 gal | 600 kBtu/h |
A. O. Smith
More A. O. Smith commercial water heaters
| Model | Type | Fuel | Storage | Input rate |
|---|---|---|---|---|
| PWH1250(N,L)(P)(-CAN) | Gas Tankless | Gas, Propane | 12 gal | 1,250 kBtu/h |
| PWH1500(N,L)(P)(-CAN) | Gas Tankless | Gas, Propane | 14 gal | 1,500 kBtu/h |
| PWH2000(N,L)(P)(-CAN) | Gas Tankless | Gas, Propane | 18 gal | 1,999 kBtu/h |
| PWH3000(N,L)(P)(-CAN) | Gas Tankless | Gas, Propane | 29 gal | 3,000 kBtu/h |
| PWH4000(N,L)(P)(-CAN) | Gas Tankless | Gas, Propane | 46 gal | 4,000 kBtu/h |
| BTH 251* 3** | Gas Storage | Gas, Propane | 119 gal | 250 kBtu/h |
| BTH 400* 3** | Gas Storage | Gas, Propane | 119 gal | 400 kBtu/h |
| BTH 300* 3** | Gas Storage | Gas, Propane | 119 gal | 300 kBtu/h |