Model
Whirlpool WHAD321AW
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 Whirlpool WHAD321AW cost to run per year?
Among the 519 dehumidifier models we track, the Whirlpool WHAD321AW's $64/yr running cost ranks it #256, close to dead center. Efficiency-wise, once size is accounted for, it sits right around the class median, ahead of 51% of the 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 Garvee SAYRAM-RCS32(Y)-N4-3 at $63/yr runs a little cheaper and the Homelabs HME0089 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 Whirlpool WHAD321AW'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 Whirlpool WHAD321AW 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 Whirlpool WHAD321AW adds up to before purchase price, water, or repairs enter the math.
Left running for a decade at today's US average rate, the Whirlpool WHAD321AW 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 Whirlpool WHAD321AW 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 Whirlpool WHAD321AW 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, putting it squarely in the middle of the class on the size lever that drives most of the cost. 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 Whirlpool WHAD321AW 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 Whirlpool WHAD321AW 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 Whirlpool WHAD321AW for its size?
51st percentile once size is factored in, a fairly typical result for the class.
Cheaper to run in the same class
Source
ES_1055302_WHAD321AW_091620250854240_5069597View certified dehumidifier listingsENERGY STAR data as of July 2026Whirlpool and WHAD321AW 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.