Model
Koolmore FLW-5CWH
Rank #174 means 173 of the 388 washing machine models we track cost less to run each year; the 61st efficiency percentile means it uses less energy for its size than 61% of those models.
What does the Koolmore FLW-5CWH cost to run per year?
At $20 a year to run, the Koolmore FLW-5CWH sits close to the middle of its class on cost, ranking #174 of 388 washing machine models we track. Once capacity is factored in, its 61th efficiency percentile puts it ahead of most peers in its class. The IMEF figure of 2.76 on this model captures integrated modified energy factor, the main efficiency lever ENERGY STAR tracks for this class.
Immediately around it on the leaderboard, the Kenmore 4120# at $20/yr runs a little cheaper and the Lg WT7250C* at $20/yr runs a little more, a sense of how tightly models are packed at this point in the ranking. A washing machine typically stays in service for somewhere around 10 years; over that span, the Koolmore FLW-5CWH's $20/yr adds up to roughly $200 in electricity alone, before purchase price or repairs.
Also sold as: Black+Decker BFLW45M.
By the numbers
The Koolmore FLW-5CWH 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 $20/yr, here is what the Koolmore FLW-5CWH adds up to before purchase price, water, or repairs enter the math.
Left running for a decade at today's US average rate, the Koolmore FLW-5CWH costs about $200. That is roughly $0 less than the class median, which would run closer to $200 over the same ten years.
How the Koolmore FLW-5CWH compares
The washing machine class we track runs from $7 to $58 a year. At $20/yr, it sits right on the class median of $20, and it is about $13 a year more than the cheapest washing machine to run at $7.
What drives its running cost
At 4.6 cu ft, the Koolmore FLW-5CWH is a mid-size washing machine for its class, which spans 1.9 to 6 cu ft with a median of 4.5 cu ft, neither the size advantage of a small unit nor the size penalty of a large one applies here, so its running cost is a fairer test of efficiency alone. Its IMEF of 2.76, above the class median of 2.76, reflects integrated modified energy factor: a higher figure means it wrings more useful work out of every kilowatt-hour, so it is the efficiency lever to weigh against raw size.
- Spin and wash efficiency (IMEF). A higher Integrated Modified Energy Factor means the machine wrings more useful washing (and a drier spin) out of every kilowatt-hour and gallon it uses.
- Drum volume. Drum volume sets the ceiling on how much a single cycle can wash, and it is usually the first driver of a washer's per-cycle energy use.
- Water heating. Cycle temperature, more than drum size, is usually what separates a cheap wash cycle from an expensive one on models with an internal water heater.
Common questions
Is the Koolmore FLW-5CWH cheap to run?
It is about average. At $20 a year it ranks #174 of 388 washing machine models we track, close to the middle of its class on running cost.
How much does the Koolmore FLW-5CWH cost per month?
Roughly $1.7/mo, spreading the $20/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 110 kWh from ENERGY STAR and multiply it by the US average residential electricity rate of $0.1856/kWh, giving about $20 a year. It is an electricity-only estimate and does not include purchase price, water, or installation.
How efficient is the Koolmore FLW-5CWH for its size?
61st percentile once size is factored in, a fairly typical result for the class.
Cheaper to run in the same class
| Rank | Model | Cost/yr |
|---|---|---|
| 188 | Kenmore 4120#2.2 cu ft | $20 |
| 187 | Kenmore 405.4227##4.6 cu ft | $20 |
| 186 | Fulgor Milano FM4WM24W12.2 cu ft | $20 |
| 185 | Finlux WM3228SCH2.2 cu ft | $20 |
| 184 | Finlux WM3225WCH2.2 cu ft | $20 |
Source
ES_1147715_FLW-5CWH_101820221051330_7129094View certified washing machine listingsENERGY STAR data as of July 2026Koolmore and FLW-5CWH 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.