Model
Zephyr PRRFD24C2AS
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 PRRFD24C2AS cost to run per year?
Ranking #149 of 622, the Zephyr PRRFD24C2AS is in the cheaper half of its class to run, at about $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. Adjusted for size, it is only more efficient than 6% of freezer models we track, so its headline cost is mostly a function of its capacity rather than efficiency. At 3.9 cu ft, it is a small 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 Zephyr PRRFD24C2AP at $61/yr runs a little cheaper and the Zephyr PRRFD24C2AS-OD 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 PRRFD24C2AS's $61/yr adds up to roughly $854 in electricity alone, before purchase price or repairs.
Also sold as: Zephyr PRRFD24C2AP.
By the numbers
The Zephyr PRRFD24C2AS 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 PRRFD24C2AS 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 PRRFD24C2AS 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 PRRFD24C2AS 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 PRRFD24C2AS uses 22% less energy.
What drives its running cost
At 3.9 cu ft, the Zephyr PRRFD24C2AS 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. 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 Zephyr PRRFD24C2AS cheap to run?
Yes, relatively. At $61 a year it ranks #149 of 622 freezer models we track, in the cheaper part of its class to run.
How much does the Zephyr PRRFD24C2AS cost per month?
Roughly $5.1/mo, spreading the $61/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 330 kWh from ENERGY STAR and multiply it by the US average residential electricity rate of $0.1856/kWh, giving about $61 a year. It is an electricity-only estimate and does not include purchase price, water, or installation.
How efficient is the Zephyr PRRFD24C2AS 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 |
|---|---|---|
| 149 | Zephyr PRRFD24C2AP3.9 cu ft | $61 |
| 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 |
Source
ES_1058337_PRRFD24C2AS_05302025134425_80255078View certified freezer listingsENERGY STAR data as of July 2026Zephyr and PRRFD24C2AS 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.