Model
Waykar CTH120D
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 CTH120D cost to run per year?
Ranking #256 of 519, the Waykar CTH120D runs at roughly $64 a year, neither the cheapest nor the priciest in its class. Normalized for capacity, it beats 51% of dehumidifier models we track, an average result for the 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 CTH120B at $64/yr runs a little cheaper and the Ge ADSE35W**# at $66/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 CTH120D'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 CTH120D 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 CTH120D 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 CTH120D 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 CTH120D 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 CTH120D 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. 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). Two dehumidifiers rated for the same pints per day can carry very different IEF figures, and IEF is what actually separates their running costs.
- Water removal capacity (pints/day). Pints-per-day rating scales with the space it is built for, and that rating is the first driver of how much power the compressor needs.
- Humidistat accuracy. How tightly a humidistat holds its target humidity determines how much of the day the compressor actually runs, on top of the unit's rated capacity and IEF.
Common questions
Is the Waykar CTH120D cheap to run?
It is about average. At $64 a year it ranks #256 of 519 dehumidifier models we track, close to the middle of its class on running cost.
How much does the Waykar CTH120D cost per month?
Roughly $5.31/mo, spreading the $64/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 343 kWh from ENERGY STAR and multiply it by the US average residential electricity rate of $0.1856/kWh, giving about $64 a year. It is an electricity-only estimate and does not include purchase price, water, or installation.
How efficient is the Waykar CTH120D 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 |
|---|---|---|
| 265 | Waykar CTH120B32.46 pints/day | $64 |
| 264 | Waykar CTH120A32.46 pints/day | $64 |
| 263 | Tcl W32D9332.46 pints/day | $64 |
| 262 | Tcl T32DC9R32.46 pints/day | $64 |
| 261 | Tcl T32DC3S32.46 pints/day | $64 |
Source
ES_1148178_CTH120D_042420260519344_1195846View certified dehumidifier listingsENERGY STAR data as of July 2026Waykar and CTH120D 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.