Model
Koolatron KTUF600-W-E
Rank #409 means 408 of the 1,000 refrigerator models we track cost less to run each year; the 99th efficiency percentile means it uses less energy for its size than 99% of those models.
What does the Koolatron KTUF600-W-E cost to run per year?
The Koolatron KTUF600-W-E costs about $58 a year to run, a middle-of-the-pack figure at rank #409 of 1,000. It uses 11% less energy than the U.S. federal standard model in its class, which would cost about $65/yr to run, a saving of roughly $7 a year. Efficiency-wise, once its capacity is accounted for, it edges out 99% of the class, about as strong a result as this ranking produces. At 21.2 cu ft, it is a large refrigerator for the class, which runs 1.2 to 31.7 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 Element EHUF21CECW at $58/yr runs a little cheaper and the Professional Series PS-UFR211-I3B at $58/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 Koolatron KTUF600-W-E's $58/yr adds up to roughly $696 in electricity alone, before purchase price or repairs.
Also sold as: Black+Decker BUC2120M*.
By the numbers
The Koolatron KTUF600-W-E 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 $58/yr, here is what the Koolatron KTUF600-W-E adds up to before purchase price, water, or repairs enter the math.
Left running for a decade at today's US average rate, the Koolatron KTUF600-W-E costs about $580. That is roughly $70 less than a standard model in its class, which would run closer to $650 over the same ten years.
How the Koolatron KTUF600-W-E compares
The refrigerator class we track runs from $8 to $149 a year. At $58/yr, it runs about $6 a year cheaper than the class median of $64, and it is about $50 a year more than the cheapest refrigerator to run at $8. Against the US federal standard model for its class at about $65/yr, the Koolatron KTUF600-W-E uses 11% less energy.
What drives its running cost
At 21.2 cu ft, the Koolatron KTUF600-W-E is a large refrigerator for its class, which spans 1.2 to 31.7 cu ft with a median of 12.6 cu ft, among refrigerator models, bigger capacity is the most common reason a running-cost figure lands on the high side, all else being equal.
- Interior volume. Cubic feet of interior volume is the first thing that scales a fridge's running cost up or down, before compressor quality even enters the picture.
- Counter depth vs standard depth. Counter-depth models sit flush with cabinets but usually hold less interior volume than a standard-depth model of the same width, which can nudge the per-cubic-foot running cost either way.
- Compressor technology. Newer variable-speed (inverter) compressors modulate output instead of cycling fully on and off, which tends to use less energy for the same cooling job than an older fixed-speed compressor.
- Placement and ventilation. A fridge pushed tight against a wall or cabinet, or standing next to an oven or in direct sun, works harder to shed the heat its compressor produces, which can push real-world cost above the published figure.
Common questions
Is the Koolatron KTUF600-W-E cheap to run?
It is about average. At $58 a year it ranks #409 of 1,000 refrigerator models we track, close to the middle of its class on running cost.
How much does the Koolatron KTUF600-W-E cost per month?
Roughly $4.86/mo, spreading the $58/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 314 kWh from ENERGY STAR and multiply it by the US average residential electricity rate of $0.1856/kWh, giving about $58 a year. It is an electricity-only estimate and does not include purchase price, water, or installation.
How efficient is the Koolatron KTUF600-W-E for its size?
99th percentile once size is factored in, a fairly typical result for the class.
Cheaper to run in the same class
| Rank | Model | Cost/yr |
|---|---|---|
| 410 | Element EHUF21CECW21.2 cu ft | $58 |
| 409 | Black+Decker BUC2120M*21.2 cu ft | $58 |
| 408 | Miele K 2911 SF20.6 cu ft | $58 |
| 407 | Upstreman BD3213.2 cu ft | $58 |
| 406 | Rca RFR834-C3.2 cu ft | $58 |
Source
ES_1137414_KTUF600-W-E_10302024112529_80229426View certified refrigerator listingsENERGY STAR data as of July 2026Koolatron and KTUF600-W-E 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.