DoesTheMath

GE GE06SNHPDG01 vs RELIANCE WATER HEATERS UPVA-55E 1**: which uses less energy?

At the very small draw pattern the RELIANCE WATER HEATERS UPVA-55E 1** uses 642 kWh a year and the GE GE06SNHPDG01 649 — 7 kWh (1%) less, about 71 kWh over ten years. Both are filed as an electric 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 an electric tankless unit at the very small draw pattern.

Filed and computed figures
GE GE06SNHPDG01 RELIANCE WATER HEATERS UPVA-55E 1**
UEF (Uniform Energy Factor) 0.91 0.92 (better)
Energy use per year (kWh) 649 642 (better)
Max flow (GPM) 0.5 0.5
Installed cost range $1,292–$1,718 $1,294–$1,742
ENERGY STAR certified not matched not matched
DOE CCD · 2026-09-19

What it costs to run

GE GE06SNHPDG01: 649 kWh a year RELIANCE WATER HEATERS UPVA-55E 1**: 642 kWh a year

GE GE06SNHPDG01 — 649 kWh a year RELIANCE WATER HEATERS UPVA-55E 1** — 642 kWh a year

RELIANCE WATER HEATERS UPVA-55E 1** is 7 kWh a year lower than GE GE06SNHPDG01.

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 RELIANCE WATER HEATERS UPVA-55E 1** if running cost matters most: it uses 7 kWh less a year on the same test.
  • Pick the GE GE06SNHPDG01 if it is the one you can get installed sooner or for less — on the filed figures it has no advantage over the RELIANCE WATER HEATERS UPVA-55E 1**.
  • Neither if you need more than 0.5 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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