Model
Dreo Home DR-HDH004S
Rank #242 means 241 of the 519 dehumidifier models we track cost less to run each year; the 54th efficiency percentile means it uses less energy for its size than 54% of those models.
What does the Dreo Home DR-HDH004S cost to run per year?
Among the 519 dehumidifier models we track, the Dreo Home DR-HDH004S's $62/yr running cost ranks it #242, close to dead center. Efficiency-wise, once size is accounted for, it sits right around the class median, ahead of 54% of the models we track. Its IEF of 2.01 reflects integrated energy factor, one of the class's core efficiency levers.
Immediately around it on the leaderboard, the Dreo DR-HDH004S at $62/yr runs a little cheaper and the Aeocky LEO-RCS32(Y)-N4-3(B) at $62/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 Dreo Home DR-HDH004S's $62/yr adds up to roughly $496 in electricity alone, before purchase price or repairs.
Also sold as: Dreo DR-HDH004S.
By the numbers
The Dreo Home DR-HDH004S 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 $62/yr, here is what the Dreo Home DR-HDH004S adds up to before purchase price, water, or repairs enter the math.
Left running for a decade at today's US average rate, the Dreo Home DR-HDH004S costs about $620. That is roughly $20 less than the class median, which would run closer to $640 over the same ten years.
How the Dreo Home DR-HDH004S compares
The dehumidifier class we track runs from $19 to $521 a year. At $62/yr, it runs about $2 a year cheaper than the class median of $64, and it is about $43 a year more than the cheapest dehumidifier to run at $19.
What drives its running cost
At 31.71 pints/day, the Dreo Home DR-HDH004S 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. The IEF of 2.01 on this model, above the class median of 2.01, measures integrated energy factor; it is the number to compare directly against another model's IEF if capacity is similar.
- 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 Dreo Home DR-HDH004S cheap to run?
Roughly, yes. Its $62/yr figure is close to the class median, ranking #242 of 519, neither a bargain nor a splurge on running cost.
How much does the Dreo Home DR-HDH004S cost per month?
About $5.18 a month, which is the $62 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: 335 kWh from ENERGY STAR times the US average of $0.1856/kWh comes to about $62 a year. It covers electricity only, not the purchase price, water, or installation.
How efficient is the Dreo Home DR-HDH004S for its size?
54th percentile once size is factored in, a fairly typical result for the class.
Cheaper to run in the same class
Source
ES_1147142_DR-HDH004S_03142026133123_8978675View certified dehumidifier listingsENERGY STAR data as of July 2026Dreo Home and DR-HDH004S 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.