Model
Zephyr PRRFD24C2AP
Rank #149 means 148 of the 622 freezer models we track cost less to run each year; the 6th efficiency percentile means it uses less energy for its size than 6% of those models.
What does the Zephyr PRRFD24C2AP cost to run per year?
Among the 622 freezer models we track, the Zephyr PRRFD24C2AP sits in the below-average-cost group, rank #149, at roughly $61 a year. It uses 22% less energy than the U.S. federal standard model in its class, which would cost about $78/yr to run, a saving of roughly $17 a year. Its size-adjusted efficiency percentile of 6 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 3.9 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 Lg LROFC1104* at $60/yr runs a little cheaper and the Zephyr PRRFD24C2AS at $61/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 Zephyr PRRFD24C2AP's $61/yr adds up to roughly $854 in electricity alone, before purchase price or repairs.
Also sold as: Zephyr PRRFD24C2AS, Zephyr PRRFD24C2AS-OD.
By the numbers
The Zephyr PRRFD24C2AP 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 $61/yr, here is what the Zephyr PRRFD24C2AP adds up to before purchase price, water, or repairs enter the math.
Left running for a decade at today's US average rate, the Zephyr PRRFD24C2AP costs about $610. That is roughly $170 less than a standard model in its class, which would run closer to $780 over the same ten years.
How the Zephyr PRRFD24C2AP compares
The freezer class we track runs from $25 to $120 a year. At $61/yr, it runs about $14 a year cheaper than the class median of $75, and it is about $36 a year more than the cheapest freezer to run at $25. Against the US federal standard model for its class at about $78/yr, the Zephyr PRRFD24C2AP uses 22% less energy.
What drives its running cost
At 3.9 cu ft, the Zephyr PRRFD24C2AP is a small freezer for its class, which spans 1.1 to 23 cu ft with a median of 13.8 cu ft, and smaller freezer models generally cost less to run for the same job, all else being equal.
- 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 Zephyr PRRFD24C2AP cheap to run?
Yes. Its $61/yr running cost puts it at rank #149 of 622, below what most freezer models we track cost to run.
How much does the Zephyr PRRFD24C2AP cost per month?
About $5.1 a month, which is the $61 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: 330 kWh from ENERGY STAR times the US average of $0.1856/kWh comes to about $61 a year. It covers electricity only, not the purchase price, water, or installation.
How efficient is the Zephyr PRRFD24C2AP for its size?
6th percentile once size is factored in, a fairly typical result for the class.
Cheaper to run in the same class
| Rank | Model | Cost/yr |
|---|---|---|
| 148 | Lg LROFC1104*11.4 cu ft | $60 |
| 147 | Arctic King AU83ETWBR1RCM8.3 cu ft | $59 |
| 146 | Marathon MUF80W7.5 cu ft | $57 |
| 145 | Marathon MUF80BLS7.5 cu ft | $57 |
| 144 | Blomberg BRUF2814WH14.3 cu ft | $57 |
Source
ES_1058337_PRRFD24C2AP_05302025134420_80255078View certified freezer listingsENERGY STAR data as of July 2026Zephyr and PRRFD24C2AP 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.