Model
U-Line UHFZ124-WS01B
Rank #208 means 207 of the 622 freezer models we track cost less to run each year; the 7th efficiency percentile means it uses less energy for its size than 7% of those models.
What does the U-Line UHFZ124-WS01B cost to run per year?
At roughly $72 a year to run, ranking #208 of 622, the U-Line UHFZ124-WS01B costs less than the typical freezer model we track. It uses 11% less energy than the U.S. federal standard model in its class, which would cost about $81/yr to run, a saving of roughly $9 a year. Its size-adjusted efficiency percentile of 7 means the low running cost, where it exists, is driven almost entirely by capacity rather than efficiency. This class has no published efficiency-factor figure beyond annual kWh itself, so at 4.8 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 U-Line UHFZ124-SS01B at $72/yr runs a little cheaper and the U-Line UOFZ124-SS01B at $72/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 U-Line UHFZ124-WS01B's $72/yr adds up to roughly $1008 in electricity alone, before purchase price or repairs.
Also sold as: U-Line 1224FZRA.
By the numbers
The U-Line UHFZ124-WS01B 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 $72/yr, here is what the U-Line UHFZ124-WS01B adds up to before purchase price, water, or repairs enter the math.
Left running for a decade at today's US average rate, the U-Line UHFZ124-WS01B costs about $720. That is roughly $90 less than a standard model in its class, which would run closer to $810 over the same ten years.
How the U-Line UHFZ124-WS01B compares
The freezer class we track runs from $25 to $120 a year. At $72/yr, it runs about $3 a year cheaper than the class median of $75, and it is about $47 a year more than the cheapest freezer to run at $25. Against the US federal standard model for its class at about $81/yr, the U-Line UHFZ124-WS01B uses 11% less energy.
What drives its running cost
At 4.8 cu ft, the U-Line UHFZ124-WS01B 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 U-Line UHFZ124-WS01B cheap to run?
Yes. Its $72/yr running cost puts it at rank #208 of 622, below what most freezer models we track cost to run.
How much does the U-Line UHFZ124-WS01B cost per month?
About $6.03 a month, which is the $72 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: 390 kWh from ENERGY STAR times the US average of $0.1856/kWh comes to about $72 a year. It covers electricity only, not the purchase price, water, or installation.
How efficient is the U-Line UHFZ124-WS01B for its size?
7th percentile once size is factored in, a fairly typical result for the class.
Cheaper to run in the same class
| Rank | Model | Cost/yr |
|---|---|---|
| 212 | U-Line UHFZ124-SS01B4.8 cu ft | $72 |
| 211 | U-Line UHFZ124-IS01B4.8 cu ft | $72 |
| 210 | U-Line UHFZ124-BS01B4.8 cu ft | $72 |
| 209 | U-Line FZ1244.8 cu ft | $72 |
| 208 | U-Line 1224FZRA4.8 cu ft | $72 |
Source
ES_92283_UHFZ124-WS01B_062720222018726_2467842View certified freezer listingsENERGY STAR data as of July 2026U-Line and UHFZ124-WS01B 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.