Commercial water heatersENERGY STAR certified
A. O. Smith PWH0400NP*
399 kBtu/h gas tankless water heater.
Input rate
399 kBtu/h
Storage
4 gal
Thermal efficiency
0.99
Fuel
Gas, Propane
Of 207 certified gas tankless commercial water heaters, 0 have a higher thermal efficiency than the PWH0400NP* (0.99).
- Maker
- A. O. Smith
- Model
- PWH0400NP*
- Type
- Gas Tankless
- Fuel
- Gas, Propane
- Storage
- 4 gal
- Thermal efficiency
- 0.99
- Input rate
- 399 kBtu/h
- Vent
- Direct Vent
- On the market since
- Apr 2022
- ENERGY STAR certified
- 25 Sep 2024
Source: ENERGY STAR certified commercial water heaters dataset, US EPA, record 2400011, data build 2026-09-29. Figures are as the maker certified them. How we use this data.
Other makers
Machines comparable to the PWH0400NP*
Certified commercial water heaters from other makers, same color class, within 20% of its speed.
| Model | Type | Fuel | Storage | Input rate |
|---|---|---|---|---|
| Trinity LX400WH | Gas Tankless | Gas, Propane | 2 gal | 399 kBtu/h |
| Lochinvar AWH0400N SERIES 1** | Gas Tankless | Gas | 4 gal | 399 kBtu/h |
| Lochinvar AWH0400L SERIES 1** | Gas Tankless | Propane | 4 gal | 399 kBtu/h |
| HTP ELX-400FVWH | Gas Tankless | Gas, Propane | 3 gal | 399 kBtu/h |
| Laars NT2V0399 | Gas Tankless | Gas | 4 gal | 399 kBtu/h |
| Bradford White BNT2V0399 | Gas Tankless | Gas | 4 gal | 399 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 |