DoesTheMath

Chiltrix Inc. DHW80 vs Ruud PRO H80 T2 RH310BM: which uses less energy?

At the high draw pattern the Ruud PRO H80 T2 RH310BM uses 1,417 kWh a year and the Chiltrix Inc. DHW80 1,499 — 81 kWh (5%) less, about 814 kWh over ten years. Both are filed as an electric tank, 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 tank at the high draw pattern.

Filed and computed figures
Chiltrix Inc. DHW80 Ruud PRO H80 T2 RH310BM
UEF (Uniform Energy Factor) 3.31 3.5 (better)
Energy use per year (kWh) 1,499 1,417 (better)
First hour rating (gal) 88 87
Rated storage volume (gal) 71 72
Installed cost range $3,816–$4,206 $3,871–$4,405
ENERGY STAR certified not matched yes
Refrigerant not filed R-134a, GWP 1430
On the market since not filed 2020-04-30
DOE CCD · 2026-09-19

What it costs to run

Chiltrix Inc. DHW80: 1,499 kWh a year Ruud PRO H80 T2 RH310BM: 1,417 kWh a year

Chiltrix Inc. DHW80 — 1,499 kWh a year Ruud PRO H80 T2 RH310BM — 1,417 kWh a year

Ruud PRO H80 T2 RH310BM is 82 kWh a year lower than Chiltrix Inc. DHW80.

DOE CCD · 2026-09-19

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

Which should you pick?

  • Pick the Ruud PRO H80 T2 RH310BM if running cost matters most: it uses 81 kWh less a year on the same test.
  • Pick the Chiltrix Inc. DHW80 if you need more hot water in your busiest hour: it lists a first hour rating of 88 gallons against 87.
  • Neither if your household's busiest hour needs more than 88 gallons of hot water — neither lists more. Check whether a 75-gallon heater is enough.

Each model on its own

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