Model
Fhiaba S240FZ3IU
Rank #550 means 549 of the 622 freezer models we track cost less to run each year; the 27th efficiency percentile means it uses less energy for its size than 27% of those models.
What does the Fhiaba S240FZ3IU cost to run per year?
Not many freezer models we track cost more to run than the Fhiaba S240FZ3IU: about $94 a year, rank #550 of 622. It uses 10% less energy than the U.S. federal standard model in its class, which would cost about $103/yr to run, a saving of roughly $9 a year. Normalized for capacity, it beats only 27% of freezer models we track, a below-average efficiency result. At 12.1 cu ft, it is a mid-size freezer for the class, which runs 1.1 to 23 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 Midea MRU21C7B** at $93/yr runs a little cheaper and the Fhiaba S240FZ6IU at $94/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 S240FZ3IU's $94/yr adds up to roughly $1316 in electricity alone, before purchase price or repairs.
Also sold as: Fhiaba S240FZ6IU, Viking Range,Llc FDFZIC7240L, Viking Range,Llc FDFZIC7240R.
By the numbers
The Fhiaba S240FZ3IU 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 $94/yr, here is what the Fhiaba S240FZ3IU 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 S240FZ3IU costs about $940. That is roughly $90 less than a standard model in its class, which would run closer to $1030 over the same ten years.
How the Fhiaba S240FZ3IU compares
The freezer class we track runs from $25 to $120 a year. At $94/yr, it runs about $19 a year above the class median of $75, and it is about $69 a year more than the cheapest freezer to run at $25. Against the US federal standard model for its class at about $103/yr, the Fhiaba S240FZ3IU uses 10% less energy.
What drives its running cost
At 12.1 cu ft, the Fhiaba S240FZ3IU is a mid-size freezer for its class, which spans 1.1 to 23 cu ft with a median of 13.8 cu ft, putting it squarely in the middle of the class on the size lever that drives most of the cost.
- Interior volume. Cubic feet of frozen storage is the first lever behind a freezer's running cost, ahead of insulation or defrost type.
- Insulation and defrost type. Two freezers of the same size can differ meaningfully on running cost based on insulation quality and whether they run an automatic-defrost heater.
- Chest vs upright design. Chest freezers open from the top, so cold air, which sinks, stays inside when the lid opens; upright freezers lose more cold air per door opening for a similar capacity.
Common questions
Is the Fhiaba S240FZ3IU cheap to run?
Not especially. At $94 a year it ranks #550 of 622 freezer 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 Fhiaba S240FZ3IU cost per month?
Roughly $7.83/mo, spreading the $94/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 506 kWh from ENERGY STAR and multiply it by the US average residential electricity rate of $0.1856/kWh, giving about $94 a year. It is an electricity-only estimate and does not include purchase price, water, or installation.
How efficient is the Fhiaba S240FZ3IU for its size?
27th 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 |
|---|---|---|
| 549 | Midea MRU21C7B**20 cu ft | $93 |
| 548 | Vissani VS217HSUPW21.8 cu ft | $93 |
| 547 | Vissani VS217HSUPSS21.8 cu ft | $93 |
| 546 | Sks SKSCF2401*13.9 cu ft | $93 |
| 545 | Signature Kitchen Suite SKSCF2401*13.9 cu ft | $93 |
Source
ES_1148036_S240FZ3IU_032520261301247_7215233View certified freezer listingsENERGY STAR data as of July 2026Fhiaba and S240FZ3IU 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.