MARATHON MRG85245
0.92 UEF DOE CCD · 2026-09-19Grade C: where this UEF sits among the 21 models in its class, lowest (G) to highest (A). A position, not an official label. How the grade is set
An electric tank your utility can shift to off-peak hours, high draw pattern (a larger household, or one where showers and laundry overlap).
If you are checking the MARATHON MRG85245 against its listing, it uses 5,392 kWh of electricity a year at the high draw pattern, the standard daily hot-water usage DOE tests against. That equals its class median of 5,392 kWh, a difference of 0 kWh, and ranks 3rd lowest in energy use of 21 models.
Energy use per year
5,392 kWh a year
Computed by this site from the registry's UEF and the federal test's daily hot-water draw for this draw pattern. What it costs depends on the electricity rate where you live.
That is equal to the median of 5,392 kWh for the 21 models registered in the same heater type and draw pattern; it ranks 3 of 21, lowest energy first.
Solid line: this model (5,392 kWh). Dashed line: the class median.
Min 5,334 kWh Median 5,392 kWh Max 5,512 kWh
What it costs to run where you live
What the registry files
- UEF (Uniform Energy Factor) how much hot water you get for each unit of energy the heater uses
- 0.92 DOE CCD · 2026-09-19 Compared only with other models registered as an electric tank your utility can shift to off-peak hours at the high draw pattern.
- Draw Pattern the standard daily usage profile DOE tests the unit against
- High DOE CCD · 2026-09-19
- First Hour Rating how many gallons of hot water the unit can deliver in one hour, starting from a full tank
- 77 gal DOE CCD · 2026-09-19
- Rated Storage Volume the tank size in gallons
- 84 gal DOE CCD · 2026-09-19
What it costs to install
Not published: Installed cost range
This model's rated tank size lies outside the range NLR REMDB's cost model was fitted on, and the range is not stretched past it.
The annual energy figure on this page does not depend on this range and is unaffected.
Safety record
No CPSC recall names this model.
Checked against the CPSC recall database. CPSC does not publish a model-level match for this product category, so this list is curated by hand from the manufacturer's recall filings.
CPSC · 2026-09-24What these figures mean
How this compares
The closest models in the same class — same fuel, type and draw pattern.
Keep going
How every figure on this page is calculated
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What a water heater costs to run
Prices a unit's efficiency against your own utility's filed tariff for your ZIP code.
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Water heaters
Every model on file with the Department of Energy, by heater type.
UEF 0.92 · Grade C Price it on your ZIP
The 5,392 kWh figure is not a registry measurement. This site computed it from the registry's UEF, the ratio of hot water delivered to energy used, which is 0.92 for this model, and from the daily hot-water draw the DOE test assigns to the high draw pattern. The fuel is electricity, and the source is the DOE CCD, retrieved 2026-09-19. The class is the 21 models registered as an electric tank your utility can shift to off-peak hours at the high draw pattern. The class median is 5,392 kWh, so this model differs from it by 0 kWh. Its rank of 3rd lowest energy use places it in the lowest quarter of its class.
The high draw pattern describes a larger household, or one where showers and laundry overlap. The figure applies to that pattern only. This model's first hour rating, the gallons of hot water available in the first hour from a full tank, is 77 gallons, and its rated volume is 84 gallons. The data used on this page gives no energy figure for any other draw pattern, so that value is not available here. The rank of 3rd lowest is measured only against models at the high draw pattern and does not carry over to another one. To compare by fuel, space and size, use the water heater selector. To look for a same-class replacement by model number, use the replacement finder.
Running cost depends on the electricity tariff you pay, so it is not written in this text. Multiply 5,392 kWh by your own rate per kilowatt-hour to get a yearly cost at the high draw pattern. The cost calculator does this from your ZIP, and the calculation method explains how the annual cost is worked out. Energy use in a home can differ from the test draw, and this page does not estimate by how much. The installed price range for the MARATHON MRG85245 is not published: this model's ratings lie outside the range the cost database's model was fitted on, and the range is not stretched past it.
DOE CCD · 2026-09-19