DoesTheMath

Noritz NRC711-OD-NG vs TECNOLOVE JSLG44-26VE1(2"): which uses less energy?

At the high draw pattern the TECNOLOVE JSLG44-26VE1(2") uses 184 therms a year and the Noritz NRC711-OD-NG 190 — 6 therms (3%) less, about 62 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 NRC711-OD-NG TECNOLOVE JSLG44-26VE1(2")
UEF (Uniform Energy Factor) 0.89 0.92 (better)
Energy use per year (therms) 190 184 (better)
Max flow (GPM) 4.3 4.1
Installed cost range $2,075–$3,074 $2,216–$3,239
ENERGY STAR certified not matched not matched
DOE CCD · 2026-09-19

What it costs to run

Noritz NRC711-OD-NG: 190 therms a year TECNOLOVE JSLG44-26VE1(2"): 184 therms a year

Noritz NRC711-OD-NG — 190 therms a year TECNOLOVE JSLG44-26VE1(2") — 184 therms a year

TECNOLOVE JSLG44-26VE1(2") is 6 therms a year lower than Noritz NRC711-OD-NG.

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.
  • The actual warranty term is printed in each model’s documentation, not in any registry.

Which should you pick?

  • Pick the TECNOLOVE JSLG44-26VE1(2") if running cost matters most: it uses 6 therms less a year on the same test.
  • Pick the Noritz NRC711-OD-NG if you run more fixtures at once: it lists 4.3 GPM against 4.1.
  • Neither if you need more than 4.3 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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