Model
Waykar CHWA120E
Rank #268 means 267 of the 519 dehumidifier models we track cost less to run each year; the 88th efficiency percentile means it uses less energy for its size than 88% of those models.
What does the Waykar CHWA120E cost to run per year?
At about $67 a year, the Waykar CHWA120E lands in the middle third of dehumidifier models we track on running cost, rank #268 of 519. Its size-adjusted efficiency percentile of 88 means the low running cost is not just a function of size; it is genuinely efficient for its class. At a IEF of 2.01, its integrated energy factor is the single figure that best explains how it earns its running-cost number.
Immediately around it on the leaderboard, the Waykar CHWA120B at $67/yr runs a little cheaper and the Noma 043-8818-6 at $67/yr runs a little more, a sense of how tightly models are packed at this point in the ranking. A dehumidifier typically stays in service for somewhere around 8 years; over that span, the Waykar CHWA120E's $67/yr adds up to roughly $536 in electricity alone, before purchase price or repairs.
Also sold as: Waykar CHWA120B.
By the numbers
The Waykar CHWA120E 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 $67/yr, here is what the Waykar CHWA120E adds up to before purchase price, water, or repairs enter the math.
Left running for a decade at today's US average rate, the Waykar CHWA120E costs about $670. That is roughly $30 more than the class median, which would run closer to $640 over the same ten years.
How the Waykar CHWA120E compares
The dehumidifier class we track runs from $19 to $521 a year. At $67/yr, it runs about $3 a year above the class median of $64, and it is about $48 a year more than the cheapest dehumidifier to run at $19.
What drives its running cost
At 35.2 pints/day, the Waykar CHWA120E is a mid-size dehumidifier for its class, which spans 1.91 to 172.13 pints/day with a median of 32.46 pints/day, right in the middle of the capacity range, so capacity is roughly a wash compared with the rest of the class. Beyond size, its IEF of 2.01, above the class median of 2.01, is the class's own efficiency yardstick, integrated energy factor, and it is what separates two similarly sized models with different running costs.
- Integrated Energy Factor (IEF). IEF measures liters of water removed per kilowatt-hour; a higher IEF means less energy per pint of moisture removed for a given capacity.
- Water removal capacity (pints/day). A dehumidifier rated to remove more pints per day is built for a larger space or a more humid room, and generally draws more power to do it.
- Humidistat accuracy. A unit with a more precise humidistat cycles the compressor off once the target humidity is reached, rather than running continuously.
Common questions
Is the Waykar CHWA120E cheap to run?
Roughly, yes. Its $67/yr figure is close to the class median, ranking #268 of 519, neither a bargain nor a splurge on running cost.
How much does the Waykar CHWA120E cost per month?
About $5.57 a month, which is the $67 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: 360 kWh from ENERGY STAR times the US average of $0.1856/kWh comes to about $67 a year. It covers electricity only, not the purchase price, water, or installation.
How efficient is the Waykar CHWA120E for its size?
88th percentile once size is factored in, a fairly typical result for the class.
Cheaper to run in the same class
| Rank | Model | Cost/yr |
|---|---|---|
| 268 | Waykar CHWA120B35.2 pints/day | $67 |
| 267 | Ge ADSE35W**#35.34 pints/day | $66 |
| 266 | Waykar CTH120D32.46 pints/day | $64 |
| 265 | Waykar CTH120B32.46 pints/day | $64 |
| 264 | Waykar CTH120A32.46 pints/day | $64 |
Source
ES_1148178_CHWA120E_04012026013310_1416953View certified dehumidifier listingsENERGY STAR data as of July 2026Waykar and CHWA120E 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.