DoesTheMath

ELIOS EROD150N0000 vs Midea MGWH150IXPP: which uses less energy?

At the high draw pattern the ELIOS EROD150N0000 and the Midea MGWH150IXPP use the same energy, 178 therms a year each, on the same federal test. Both are filed as a gas tankless unit, so the comparison holds; what separates them is below. Enter your ZIP to price either one on your own rate.

Side by side

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

Filed and computed figures
ELIOS EROD150N0000 Midea MGWH150IXPP
UEF (Uniform Energy Factor) 0.95 0.95
Energy use per year (therms) 178 178
Max flow (GPM) 4.2 4.1
Installed cost range $2,358–$3,405 $2,358–$3,405
ENERGY STAR certified yes yes
On the market since 2026-01-28 2025-09-01
DOE CCD · 2026-09-19

What it costs to run

Enter your ZIP to price both units on the same rate where you live.

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 ELIOS EROD150N0000 since 2026-01-28, the Midea MGWH150IXPP since 2025-09-01. A sale date, not a lifespan.

Which should you pick?

  • Pick the ELIOS EROD150N0000 if its price or availability suits you — on energy the two are level.
  • Pick the Midea MGWH150IXPP if it is the one you can get installed sooner or for less — on the filed figures it has no advantage over the ELIOS EROD150N0000.
  • Neither if you need more than 4.2 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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