Model
Waykar CTH120A
Rank #256 means 255 of the 519 dehumidifier models we track cost less to run each year; the 51st efficiency percentile means it uses less energy for its size than 51% of those models.
What does the Waykar CTH120A cost to run per year?
The Waykar CTH120A holds rank #256 of 519 on running cost, at about $64 a year, an unremarkable but typical figure for the class. Size-adjusted, this model sits close to the class median on efficiency, ahead of 51% of dehumidifier models we track. 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 Tcl W32D93 at $64/yr runs a little cheaper and the Waykar CTH120B at $64/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 CTH120A's $64/yr adds up to roughly $512 in electricity alone, before purchase price or repairs.
Also sold as: Homelabs HME0089.
By the numbers
The Waykar CTH120A 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 $64/yr, here is what the Waykar CTH120A 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 CTH120A costs about $640. That is roughly $0 less than the class median, which would run closer to $640 over the same ten years.
How the Waykar CTH120A compares
The dehumidifier class we track runs from $19 to $521 a year. At $64/yr, it sits right on the class median of $64, and it is about $45 a year more than the cheapest dehumidifier to run at $19.
What drives its running cost
At 32.46 pints/day, the Waykar CTH120A 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, 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 IEF of 2.01, above the class median of 2.01, reflects integrated 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.
- 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 CTH120A cheap to run?
Roughly, yes. Its $64/yr figure is close to the class median, ranking #256 of 519, neither a bargain nor a splurge on running cost.
How much does the Waykar CTH120A cost per month?
About $5.31 a month, which is the $64 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: 343 kWh from ENERGY STAR times the US average of $0.1856/kWh comes to about $64 a year. It covers electricity only, not the purchase price, water, or installation.
How efficient is the Waykar CTH120A for its size?
51st percentile once size is factored in, a fairly typical result for the class.
Cheaper to run in the same class
| Rank | Model | Cost/yr |
|---|---|---|
| 263 | Tcl W32D9332.46 pints/day | $64 |
| 262 | Tcl T32DC9R32.46 pints/day | $64 |
| 261 | Tcl T32DC3S32.46 pints/day | $64 |
| 260 | Tcl H32D44W32.46 pints/day | $64 |
| 259 | Newair NDH035WH0032.46 pints/day | $64 |
Source
ES_1148178_CTH120A_072520240327266_4343899View certified dehumidifier listingsENERGY STAR data as of July 2026Waykar and CTH120A 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.