Ruud MRG85245
Ruud MRG85245 is in the DOE listing as of Oct 19, 2026.
- Grid-enabled water heater
- 1 listed model
ENERGY STAR certification does not cover this type of water heater.
Its figures are also listed under MARATHON MRG85245.
Certified figures
- Storage volume
- 84gallons
- UEF
- 0.92Uniform energy factor
- First-hour rating
- 77gallonsHot water in the first hour
Your busiest hour
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.
It delivers 77 gallons of hot water in the test's first hour. In the first hour, 17 of the 21 grid-enabled models give more hot water. The median grid-enabled model gives 85 gallons in the first hour of the test.
In tests, 92% of the energy went to hot water, so its UEF is 0.92. In the test, daily hot water use was set to high (its draw pattern). Of 21 grid-enabled models with the same draw pattern, 2 have a higher UEF and 9 a lower one. On its draw pattern, its UEF is also the median grid-enabled UEF. When it reheats water in the test, 98% of the energy it uses ends up in the water.
All of its test figures are shared by one other basic model. That one carries the MARATHON brand name. For the full group, see the MARATHON MRG85245 page.
Also listed as
They carry every figure in the table above.
Not covered
- Advertised figures. We have none on file for this model.