Model
Truarctic TWF3124HSB
Rank #1 means 0 of the 388 washing machine 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 Truarctic TWF3124HSB cost to run per year?
The Truarctic TWF3124HSB costs about $7 a year to run, a figure that only a handful of the 388 washing machine models we track can beat, rank #1. Efficiency-wise, once its capacity is accounted for, it edges out 99% of the class, about as strong a result as this ranking produces. The IMEF figure of 2.92 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 Premium Levella PWMF287HB at $7/yr runs a little cheaper and the Truarctic TWF3124HST at $7/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 Truarctic TWF3124HSB's $7/yr adds up to roughly $70 in electricity alone, before purchase price or repairs. At rank #1 of 388, it is one of the single cheapest washing machine models we track to run, in the top one percent on cost.
Also sold as: Hisense WF5S2845BB.
By the numbers
The Truarctic TWF3124HSB 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 $7/yr, here is what the Truarctic TWF3124HSB adds up to before purchase price, water, or repairs enter the math.
Left running for a decade at today's US average rate, the Truarctic TWF3124HSB costs about $70. That is roughly $130 less than the class median, which would run closer to $200 over the same ten years.
How the Truarctic TWF3124HSB compares
The washing machine class we track runs from $7 to $58 a year. At $7/yr, it runs about $13 a year cheaper than the class median of $20, and it is the cheapest washing machine to run in the class among the models we track.
What drives its running cost
At 2.8 cu ft, the Truarctic TWF3124HSB is a small washing machine for its class, which spans 1.9 to 6 cu ft with a median of 4.5 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. Beyond size, its IMEF of 2.92, above the class median of 2.76, is the class's own efficiency yardstick, integrated modified energy factor, and it is what separates two similarly sized models with different running costs.
- 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 Truarctic TWF3124HSB cheap to run?
Yes, relatively. At $7 a year it ranks #1 of 388 washing machine models we track, in the cheaper part of its class to run.
How much does the Truarctic TWF3124HSB cost per month?
Roughly $0.6/mo, spreading the $7/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 39 kWh from ENERGY STAR and multiply it by the US average residential electricity rate of $0.1856/kWh, giving about $7 a year. It is an electricity-only estimate and does not include purchase price, water, or installation.
How efficient is the Truarctic TWF3124HSB for its size?
99th percentile once size is factored in. That means its size-adjusted efficiency is a real factor in the running-cost figure above; its capacity plays a large role too.
Cheaper to run in the same class
Source
ES_1152481_TWF3124HSB_062320260222562_7499915View certified washing machine listingsENERGY STAR data as of July 2026Truarctic and TWF3124HSB 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.