Model
Fhiaba S180FZ3IU
Rank #398 means 397 of the 622 freezer models we track cost less to run each year; the 13th efficiency percentile means it uses less energy for its size than 13% of those models.
What does the Fhiaba S180FZ3IU cost to run per year?
At roughly $82 a year to run, ranking #398 of 622, the Fhiaba S180FZ3IU costs more than the typical freezer model we track. It uses 10% less energy than the U.S. federal standard model in its class, which would cost about $89/yr to run, a saving of roughly $7 a year. Capacity-normalized, it ranks ahead of just 13% of freezer models we track, a clearly below-average result. This class has no published efficiency-factor figure beyond annual kWh itself, so at 7.9 cu ft (the class spans 1.1 to 23), size is the clearest lever we can point to for this model's running cost.
Immediately around it on the leaderboard, the West Bend WB170VFLJM#** at $81/yr runs a little cheaper and the Fhiaba S180FZ6IU at $82/yr runs a little more, a sense of how tightly models are packed at this point in the ranking. A freezer typically stays in service for somewhere around 14 years; over that span, the Fhiaba S180FZ3IU's $82/yr adds up to roughly $1148 in electricity alone, before purchase price or repairs.
Also sold as: Fhiaba S180FZ6IU, Viking Range,Llc FDFZIC7180L, Viking Range,Llc FDFZIC7180R.
By the numbers
The Fhiaba S180FZ3IU 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 $82/yr, here is what the Fhiaba S180FZ3IU 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 S180FZ3IU costs about $820. That is roughly $70 less than a standard model in its class, which would run closer to $890 over the same ten years.
How the Fhiaba S180FZ3IU compares
The freezer class we track runs from $25 to $120 a year. At $82/yr, it runs about $7 a year above the class median of $75, and it is about $57 a year more than the cheapest freezer to run at $25. Against the US federal standard model for its class at about $89/yr, the Fhiaba S180FZ3IU uses 10% less energy.
What drives its running cost
At 7.9 cu ft, the Fhiaba S180FZ3IU is a small freezer for its class, which spans 1.1 to 23 cu ft with a median of 13.8 cu ft, at the small end of the class, capacity itself is doing a lot of the work to keep that figure down, separate from how efficient the unit actually is.
- Interior volume. As with refrigerators, more cubic feet of frozen storage generally means a bigger compressor and a higher annual energy figure.
- Insulation and defrost type. Better-insulated cabinets lose less cold to the surrounding room, and frost-free (automatic-defrost) freezers run a periodic heating element that a manual-defrost model does not.
- Chest vs upright design. Door orientation affects how much cold air escapes per opening: top-opening chest designs generally hold cold better than front-opening upright ones.
Common questions
Is the Fhiaba S180FZ3IU cheap to run?
Its $82/yr running cost, rank #398 of 622, is above what most freezer models we track cost to run, so this is not one of the cheaper picks on electricity alone.
How much does the Fhiaba S180FZ3IU cost per month?
About $6.81 a month, which is the $82 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: 440 kWh from ENERGY STAR times the US average of $0.1856/kWh comes to about $82 a year. It covers electricity only, not the purchase price, water, or installation.
How efficient is the Fhiaba S180FZ3IU for its size?
13th percentile once size is factored in. That means its size-adjusted efficiency is not the main reason for the running-cost figure above; its capacity plays a large role too.
Cheaper to run in the same class
| Rank | Model | Cost/yr |
|---|---|---|
| 397 | West Bend WB170VFLJM#**17 cu ft | $81 |
| 396 | Omnimax 3730-73917 cu ft | $81 |
| 395 | Midea WHS-625FWEW117 cu ft | $81 |
| 394 | Midea WHS-625FWESS117 cu ft | $81 |
| 393 | Midea MU170CWBR1RC117 cu ft | $81 |
Source
ES_1148036_S180FZ3IU_03252026125905_1229120View certified freezer listingsENERGY STAR data as of July 2026Fhiaba and S180FZ3IU 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.