Model
Marathon MFF179WBM-RH
Rank #669 means 668 of the 1,000 refrigerator models we track cost less to run each year; the 78th efficiency percentile means it uses less energy for its size than 78% of those models.
What does the Marathon MFF179WBM-RH cost to run per year?
The Marathon MFF179WBM-RH is a relatively costly runner for its class: about $81 a year, rank #669 of 1,000. It uses 14% less energy than the U.S. federal standard model in its class, which would cost about $95/yr to run, a saving of roughly $14 a year. Its 78th size-adjusted efficiency percentile is a step ahead of the class median, though not among the very top results. At 18 cu ft, it is a mid-size refrigerator for the class, which runs 1.2 to 31.7 cu ft; size and efficiency are the two levers behind the figure above, and this dataset does not carry a separate efficiency-factor column for this class.
Immediately around it on the leaderboard, the Marathon MFF179SSBM-RH at $81/yr runs a little cheaper and the Truarctic TRBM1830SV at $81/yr runs a little more, a sense of how tightly models are packed at this point in the ranking. A refrigerator typically stays in service for somewhere around 12 years; over that span, the Marathon MFF179WBM-RH's $81/yr adds up to roughly $972 in electricity alone, before purchase price or repairs.
Also sold as: Hamilton Beach HBF1800.
By the numbers
The Marathon MFF179WBM-RH normalized against its whole class, so each figure means something.
What it costs you over time
Running cost is an every-year number, so it compounds. At $81/yr, here is what the Marathon MFF179WBM-RH adds up to before purchase price, water, or repairs enter the math.
Left running for a decade at today's US average rate, the Marathon MFF179WBM-RH costs about $810. That is roughly $140 less than a standard model in its class, which would run closer to $950 over the same ten years.
How the Marathon MFF179WBM-RH compares
The refrigerator class we track runs from $8 to $149 a year. At $81/yr, it runs about $17 a year above the class median of $64, and it is about $73 a year more than the cheapest refrigerator to run at $8. Against the US federal standard model for its class at about $95/yr, the Marathon MFF179WBM-RH uses 14% less energy.
What drives its running cost
At 18 cu ft, the Marathon MFF179WBM-RH is a mid-size refrigerator for its class, which spans 1.2 to 31.7 cu ft with a median of 12.6 cu ft, right in the middle of the capacity range, so capacity is roughly a wash compared with the rest of the class.
- Interior volume. Cubic feet of interior volume is the first thing that scales a fridge's running cost up or down, before compressor quality even enters the picture.
- Counter depth vs standard depth. Counter-depth models sit flush with cabinets but usually hold less interior volume than a standard-depth model of the same width, which can nudge the per-cubic-foot running cost either way.
- Compressor technology. Newer variable-speed (inverter) compressors modulate output instead of cycling fully on and off, which tends to use less energy for the same cooling job than an older fixed-speed compressor.
- Placement and ventilation. A fridge pushed tight against a wall or cabinet, or standing next to an oven or in direct sun, works harder to shed the heat its compressor produces, which can push real-world cost above the published figure.
Common questions
Is the Marathon MFF179WBM-RH cheap to run?
Not especially. At $81 a year it ranks #669 of 1,000 refrigerator models we track, in the pricier part of its class to run, though its size and features may still justify that for your needs.
How much does the Marathon MFF179WBM-RH cost per month?
Roughly $6.77/mo, spreading the $81/yr estimate evenly across twelve months at $0.1856/kWh. Actual monthly bills swing with your rate and usage pattern.
How is this running-cost figure calculated?
We take the model's published annual energy use of 438 kWh from ENERGY STAR and multiply it by the US average residential electricity rate of $0.1856/kWh, giving about $81 a year. It is an electricity-only estimate and does not include purchase price, water, or installation.
How efficient is the Marathon MFF179WBM-RH for its size?
78th percentile once size is factored in. That means its size-adjusted efficiency is a real factor in the running-cost figure above; its capacity plays a large role too.
Cheaper to run in the same class
| Rank | Model | Cost/yr |
|---|---|---|
| 670 | Marathon MFF179SSBM-RH18 cu ft | $81 |
| 669 | Hamilton Beach HBF180018 cu ft | $81 |
| 668 | Beko BFBF30116SSIM16.1 cu ft | $81 |
| 667 | Vitara VFFR1803ESE17.7 cu ft | $81 |
| 666 | Stovv F18HF01SW17.7 cu ft | $81 |
Source
ES_1137295_MFF179WBM-RH_012320241014372_1831440View certified refrigerator listingsENERGY STAR data as of July 2026Marathon and MFF179WBM-RH are used here for identification only and are not endorsements. Figures are computed by WattWise Labs from public ENERGY STAR data, not measured in our own lab.