Model
Fhiaba S240FW6U
Rank #39 means 38 of the 1,000 refrigerator models we track cost less to run each year; the 99th efficiency percentile means it uses less energy for its size than 99% of those models.
What does the Fhiaba S240FW6U cost to run per year?
Rank #39 of 1,000 puts the Fhiaba S240FW6U at the very top of the cheapest-to-run leaderboard for its class, at roughly $33 a year. It uses 30% less energy than the U.S. federal standard model in its class, which would cost about $47/yr to run, a saving of roughly $14 a year. Size-adjusted, this model beats 99% of refrigerator models we track on efficiency, a standout even among the class's efficient models. Counter-depth construction, which this model has, generally means a shallower cabinet and less interior volume than a standard-depth model the same width, a tradeoff worth knowing if you are comparing it on cubic feet.
Immediately around it on the leaderboard, the Liebherr MW 2401 at $32/yr runs a little cheaper and the Viking Range,Llc FDWCIC7240R at $33/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 Fhiaba S240FW6U's $33/yr adds up to roughly $396 in electricity alone, before purchase price or repairs.
Also sold as: Viking Range,Llc FDWCIC7240R.
By the numbers
The Fhiaba S240FW6U 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 $33/yr, here is what the Fhiaba S240FW6U adds up to before purchase price, water, or repairs enter the math.
Left running for a decade at today's US average rate, the Fhiaba S240FW6U costs about $330. That is roughly $140 less than a standard model in its class, which would run closer to $470 over the same ten years.
How the Fhiaba S240FW6U compares
The refrigerator class we track runs from $8 to $149 a year. At $33/yr, it runs about $31 a year cheaper than the class median of $64, and it is about $25 a year more than the cheapest refrigerator to run at $8. Against the US federal standard model for its class at about $47/yr, the Fhiaba S240FW6U uses 30% less energy.
What drives its running cost
At 12.3 cu ft, the Fhiaba S240FW6U 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, putting it squarely in the middle of the class on the size lever that drives most of the cost.
- Counter depth vs standard depth. Standard-depth models generally offer more interior volume per unit of width than counter-depth models, a tradeoff between built-in looks and cubic feet.
- Interior volume. More cubic feet of cold air to maintain generally means a bigger compressor and a higher running-cost figure, even among efficient models.
- Compressor technology. How a compressor cycles, full on/off versus a variable-speed inverter design, is one of the biggest hidden differences behind two fridges with similar cubic feet but different running costs.
- Placement and ventilation. Ventilation clearance around the back and top matters more than most owners expect; a fridge starved of airflow runs its compressor longer to hold the same temperature.
Common questions
Is the Fhiaba S240FW6U cheap to run?
Yes. Its $33/yr running cost puts it at rank #39 of 1,000, below what most refrigerator models we track cost to run.
How much does the Fhiaba S240FW6U cost per month?
About $2.74 a month, which is the $33 annual estimate spread across twelve months at the US average rate of $0.1856/kWh. Your own bill scales with your local electricity rate and how heavily you use it.
How is this running-cost figure calculated?
The formula is annual kWh times price per kWh: 177 kWh from ENERGY STAR times the US average of $0.1856/kWh comes to about $33 a year. It covers electricity only, not the purchase price, water, or installation.
How efficient is the Fhiaba S240FW6U for its size?
99th 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 |
|---|---|---|
| 38 | Liebherr MW 240111.3 cu ft | $32 |
| 37 | Dometic C60G11.7 cu ft | $32 |
| 36 | Sub-Zero DEU2450R/*5.4 cu ft | $31 |
| 35 | Sks SKSCW181**9.7 cu ft | $30 |
| 34 | Zephyr PRPW24C01BG5.6 cu ft | $30 |
Source
ES_1148036_S240FW6U_112520251458361_1714396View certified refrigerator listingsENERGY STAR data as of July 2026Fhiaba and S240FW6U 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.