Model
Comfee CERM33B0AIX
Rank #277 means 276 of the 1,000 refrigerator models we track cost less to run each year; the 14th efficiency percentile means it uses less energy for its size than 14% of those models.
What does the Comfee CERM33B0AIX cost to run per year?
At about $48 a year, the Comfee CERM33B0AIX undercuts most refrigerator models we track on running cost, rank #277 of 1,000. It uses 10% less energy than the U.S. federal standard model in its class, which would cost about $54/yr to run, a saving of roughly $6 a year. Its size-adjusted efficiency percentile of 14 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 3.3 cu ft (the class spans 1.2 to 31.7), size is the clearest lever we can point to for this model's running cost.
Immediately around it on the leaderboard, the Xo XOU15ORSL at $48/yr runs a little cheaper and the Ellipse EFVC13S at $48/yr runs a little more, a sense of how tightly models are packed at this point in the ranking. A refrigerator typically stays in service for somewhere around 12 years; over that span, the Comfee CERM33B0AIX's $48/yr adds up to roughly $576 in electricity alone, before purchase price or repairs.
Also sold as: Insignia NS-CF33WH6, Made4 Supply 1814812, Midea MERM33S1AST, Seasons 189975, Vissani MDAR33BK5.
By the numbers
The Comfee CERM33B0AIX 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 Comfee CERM33B0AIX adds up to before purchase price, water, or repairs enter the math.
Left running for a decade at today's US average rate, the Comfee CERM33B0AIX costs about $480. That is roughly $60 less than a standard model in its class, which would run closer to $540 over the same ten years.
How the Comfee CERM33B0AIX compares
The refrigerator class we track runs from $8 to $149 a year. At $48/yr, it runs about $16 a year cheaper than the class median of $64, and it is about $40 a year more than the cheapest refrigerator to run at $8. Against the US federal standard model for its class at about $54/yr, the Comfee CERM33B0AIX uses 10% less energy.
What drives its running cost
At 3.3 cu ft, the Comfee CERM33B0AIX is a small refrigerator for its class, which spans 1.2 to 31.7 cu ft with a median of 12.6 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. More cubic feet of cold air to maintain generally means a bigger compressor and a higher running-cost figure, even among efficient models.
- Counter depth vs standard depth. Standard-depth models generally offer more interior volume per unit of width than counter-depth models, a tradeoff between built-in looks and cubic feet.
- Compressor technology. How a compressor cycles, full on/off versus a variable-speed inverter design, is one of the biggest hidden differences behind two fridges with similar cubic feet but different running costs.
- Placement and ventilation. Ventilation clearance around the back and top matters more than most owners expect; a fridge starved of airflow runs its compressor longer to hold the same temperature.
Common questions
Is the Comfee CERM33B0AIX cheap to run?
Yes. Its $48/yr running cost puts it at rank #277 of 1,000, below what most refrigerator models we track cost to run.
How much does the Comfee CERM33B0AIX cost per month?
About $4.02 a month, which is the $48 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: 260 kWh from ENERGY STAR times the US average of $0.1856/kWh comes to about $48 a year. It covers electricity only, not the purchase price, water, or installation.
How efficient is the Comfee CERM33B0AIX for its size?
14th percentile once size is factored in, a fairly typical result for the class.
Cheaper to run in the same class
| Rank | Model | Cost/yr |
|---|---|---|
| 276 | Xo XOU15ORSL3.3 cu ft | $48 |
| 275 | Xo XOU15BCOFL3.3 cu ft | $48 |
| 274 | Xo XOU15BCGBSR3.3 cu ft | $48 |
| 273 | Vissani HVAR32BEF3.3 cu ft | $48 |
| 272 | Perlick HH24R*4C-**-*****3.2 cu ft | $48 |
Source
ES_1030337_CERM33B0AIX_05232025082516_80251537View certified refrigerator listingsENERGY STAR data as of July 2026Comfee and CERM33B0AIX 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.