Noritz
Noritz NRC711-DV-NG
$1295.62
Best Tankless Water Heaters · head-to-head
Noritz NRC711-DV-NG vs A.O. Smith ProLine XE ATI-540H-N
A sourced, side-by-side comparison. Noritz NRC711-DV-NG is cheaper at $1295.62. Every spec and price links to its source.
A.O. Smith
A.O. Smith ProLine XE ATI-540H-N
—
Full spec sheet
✓ marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.
| Spec |  Noritz NRC711-DV-NG |  A.O. Smith ProLine XE ATI-540H-N |
|---|---|---|
| US price | $1295.62 | — |
| Brand | Noritz | A.O. Smith |
| Released | — | — |
| Fuel type | natural-gas | natural-gas |
| Max flow rate (gpm) | 7.1 | 10 |
| Max btu per hour | 157000 | 199000 |
| Power input (kW) | — | — |
| Uniform energy factor | 0.89 | 0.93 |
| Condensing type | condensing | condensing |
| Min activation flow (gpm) | 0.5 | — |
| Vent type | pvc | pvc |
| Max temp (°F) | 140 | — |
| Heat exchanger warranty yrs | 12 | 15 |
| Wi-Fi enabled | — | — |
| Weight (lb) | 41 | — |
Sources — Noritz NRC711-DV-NG: noritz.com (verified 2026-07-11). A.O. Smith ProLine XE ATI-540H-N: hotwater.com (verified 2026-07-11).
What's the difference between the Noritz NRC711-DV-NG and A.O. Smith ProLine XE ATI-540H-N?
Where the two actually differ on the specs we track (4 of 12). Matching specs are omitted.
- Max flow rate (gpm): Noritz NRC711-DV-NG 7.1 vs A.O. Smith ProLine XE ATI-540H-N 10
- Max btu per hour: Noritz NRC711-DV-NG 157000 vs A.O. Smith ProLine XE ATI-540H-N 199000
- Uniform energy factor: Noritz NRC711-DV-NG 0.89 vs A.O. Smith ProLine XE ATI-540H-N 0.93
- Heat exchanger warranty yrs: Noritz NRC711-DV-NG 12 vs A.O. Smith ProLine XE ATI-540H-N 15