MARATHON MRG85245
MARATHON MRG85245 is in the DOE listing as of Oct 26, 2026.
It has a certified storage volume of 84 gallons, a certified UEF of 0.92, and a certified first-hour rating of 77 gallons of hot water.
- Grid-enabled water heater
- 1 listed model
ENERGY STAR certification does not cover this type of water heater.
Certified figures
- Storage volume
- 84gallons
- UEF
- 0.92Uniform energy factor
- First-hour rating
- 77gallonsHot water in the first hour
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Change your hourCertified figures by listed model
| Model number | Storage volume (gal) | UEF | First-hour rating (gal) | Recovery efficiency | Draw pattern |
|---|---|---|---|---|---|
| MRG85245 | 84 | 0.92 | 77 | 98% | High |
UEF is the uniform energy factor. A dash means the model has no such figure.
Over one hour from a full tank, it gave 77 gallons in the test (its first-hour rating). Among 21 grid-enabled models, 17 have a higher first-hour rating. The median grid-enabled model gives 85 gallons in its first hour.
In the test, 8% of its energy does not reach the hot water (UEF 0.92). Its test ran at the high level of daily hot water use. Of 21 grid-enabled models with the same draw pattern, 2 have a higher UEF. Its UEF is the median for its type and draw pattern. Of the energy spent to reheat water, 98% goes into it (its recovery efficiency).
There is one more basic model with the same test figures. That one is listed under the Ruud brand.
Also listed as
They carry every figure in the table above.
Not covered
- Advertised figures. We have none on file for this model.