DoesTheMath

Noritz NRCR92DV (GQ-C2661WXQ-FF US) vs VESTA VTP-150: which uses less energy?

At the high draw pattern the Noritz NRCR92DV (GQ-C2661WXQ-FF US) uses 173 therms a year and the VESTA VTP-150 176 — 4 therms (2%) less, about 36 therms over ten years. Both are filed as a gas tankless unit, so the comparison holds. Enter your ZIP below to price the difference.

Side by side

Compared within one class only: models filed as a gas tankless unit at the high draw pattern.

Filed and computed figures
Noritz NRCR92DV (GQ-C2661WXQ-FF US) VESTA VTP-150
UEF (Uniform Energy Factor) 0.98 (better) 0.96
Energy use per year (therms) 173 (better) 176
Max flow (GPM) 4.7 4.7
Installed cost range $2,499–$3,570 $2,405–$3,460
ENERGY STAR certified yes yes
On the market since 2025-05-01 2023-10-16
DOE CCD · 2026-09-19

What it costs to run

Noritz NRCR92DV (GQ-C2661WXQ-FF US): 173 therms a year VESTA VTP-150: 176 therms a year

Noritz NRCR92DV (GQ-C2661WXQ-FF US) — 173 therms a year VESTA VTP-150 — 176 therms a year

Noritz NRCR92DV (GQ-C2661WXQ-FF US) is 3 therms a year lower than VESTA VTP-150.

DOE CCD · 2026-09-19

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Reliability

Not published: Reliability, failure rates and each model’s actual warranty term.

The registries these figures come from certify energy performance under a federal test; none of them records how long a unit lasts or how often it fails, so this page does not rank the two on reliability.

What is here instead:

  • The filed efficiency, capacity and tank size of both models, side by side below.
  • Both are ENERGY STAR certified, which requires a manufacturer warranty of at least six years; the actual term for each model is not published.
  • Time on the market, as filed with ENERGY STAR: the Noritz NRCR92DV (GQ-C2661WXQ-FF US) since 2025-05-01, the VESTA VTP-150 since 2023-10-16. A sale date, not a lifespan.

Which should you pick?

  • Pick the Noritz NRCR92DV (GQ-C2661WXQ-FF US) if running cost matters most: it uses 4 therms less a year on the same test.
  • Pick the VESTA VTP-150 if it is the one you can get installed sooner or for less — on the filed figures it has no advantage over the Noritz NRCR92DV (GQ-C2661WXQ-FF US).
  • Neither if you need more than 4.7 GPM at the same time — neither unit lists more. Check how to size a tankless unit by GPM.

Each model on its own

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