Best Tankless Water Heaters · head-to-head

Rinnai RU199iN vs Noritz NRC711-DV-NG

A sourced, side-by-side comparison. Noritz NRC711-DV-NG is cheaper at $1295.62. Every spec and price links to its source.

Which is better: the Rinnai RU199iN or Noritz NRC711-DV-NG?

The Noritz NRC711-DV-NG wins 1 of the 1 specs we compare head to head; the other wins 0.

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Full spec sheet

✓ marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.

Spec Rinnai RU199iN Noritz NRC711-DV-NG
US price — $1295.62
BrandRinnaiNoritz
Released——
Fuel type natural-gas natural-gas
Max flow rate (gpm) 11 7.1
Max btu per hour 199000 157000
Power input (kW) — —
Uniform energy factor 0.95 0.89
Condensing type condensing condensing
Min activation flow (gpm) — 0.5
Vent type — pvc
Max temp (°F) — 140
Heat exchanger warranty yrs 15 12
Wi-Fi enabled No —
Weight (lb) 64 41

Sources — Rinnai RU199iN: rinnai.us (verified 2026-07-11). Noritz NRC711-DV-NG: noritz.com (verified 2026-07-11).

What's the difference between the Rinnai RU199iN and Noritz NRC711-DV-NG?

Where the two actually differ on the specs we track (5 of 12). Matching specs are omitted.

  • Max flow rate (gpm): Rinnai RU199iN 11 vs Noritz NRC711-DV-NG 7.1
  • Max btu per hour: Rinnai RU199iN 199000 vs Noritz NRC711-DV-NG 157000
  • Uniform energy factor: Rinnai RU199iN 0.95 vs Noritz NRC711-DV-NG 0.89
  • Heat exchanger warranty yrs: Rinnai RU199iN 15 vs Noritz NRC711-DV-NG 12
  • Weight (lb): Rinnai RU199iN 64 vs Noritz NRC711-DV-NG 41

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