Model
Finlux 2451 DUF1650WH
Rank #100 means 99 of the 622 freezer models we track cost less to run each year; the 33rd efficiency percentile means it uses less energy for its size than 33% of those models.
What does the Finlux 2451 DUF1650WH cost to run per year?
Few freezer models we track cost less to run than the Finlux 2451 DUF1650WH: about $48 a year, rank #100 of 622. It uses 21% less energy than the U.S. federal standard model in its class, which would cost about $61/yr to run, a saving of roughly $13 a year. Adjusted for size, it is only more efficient than 33% of freezer models we track, so part of its running cost comes from its capacity rather than efficiency alone. At 6.6 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 Criterion CUF36C1W at $47/yr runs a little cheaper and the Kenmore 111. 2206**** at $48/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 Finlux 2451 DUF1650WH's $48/yr adds up to roughly $672 in electricity alone, before purchase price or repairs.
By the numbers
The Finlux 2451 DUF1650WH 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 $48/yr, here is what the Finlux 2451 DUF1650WH adds up to before purchase price, water, or repairs enter the math.
Left running for a decade at today's US average rate, the Finlux 2451 DUF1650WH costs about $480. That is roughly $130 less than a standard model in its class, which would run closer to $610 over the same ten years.
How the Finlux 2451 DUF1650WH compares
The freezer class we track runs from $25 to $120 a year. At $48/yr, it runs about $27 a year cheaper than the class median of $75, and it is about $23 a year more than the cheapest freezer to run at $25. Against the US federal standard model for its class at about $61/yr, the Finlux 2451 DUF1650WH uses 21% less energy.
What drives its running cost
At 6.6 cu ft, the Finlux 2451 DUF1650WH is a small freezer for its class, which spans 1.1 to 23 cu ft with a median of 13.8 cu ft, less capacity to service is usually the first reason a running-cost figure lands on the low side, before efficiency even enters the picture.
- 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 Finlux 2451 DUF1650WH cheap to run?
Yes, relatively. At $48 a year it ranks #100 of 622 freezer models we track, in the cheaper part of its class to run.
How much does the Finlux 2451 DUF1650WH cost per month?
Roughly $3.96/mo, spreading the $48/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 256 kWh from ENERGY STAR and multiply it by the US average residential electricity rate of $0.1856/kWh, giving about $48 a year. It is an electricity-only estimate and does not include purchase price, water, or installation.
How efficient is the Finlux 2451 DUF1650WH for its size?
33rd 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
Source
ES_1143390_2451 DUF1650WH_053020220812645_7898950View certified freezer listingsENERGY STAR data as of July 2026Finlux and 2451 DUF1650WH 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.