Model
Keystone KSTAD224F
Rank #136 means 135 of the 519 dehumidifier models we track cost less to run each year; the 7th efficiency percentile means it uses less energy for its size than 7% of those models.
What does the Keystone KSTAD224F cost to run per year?
At $52 a year to run, the Keystone KSTAD224F runs cheaper than most models in its class, ranking #136 of 519 dehumidifier models we track. Once capacity is factored in, its efficiency percentile of 7 is among the lowest in its class. Its IEF of 1.7 reflects integrated energy factor, one of the class's core efficiency levers.
Immediately around it on the leaderboard, the Tabyik D025F-25Pt3M-P at $51/yr runs a little cheaper and the Danby DDR020BJ2WDB at $52/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 Keystone KSTAD224F's $52/yr adds up to roughly $416 in electricity alone, before purchase price or repairs.
Also sold as: Comfort Aire BHD-22B.
By the numbers
The Keystone KSTAD224F 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 $52/yr, here is what the Keystone KSTAD224F adds up to before purchase price, water, or repairs enter the math.
Left running for a decade at today's US average rate, the Keystone KSTAD224F costs about $520. That is roughly $120 less than the class median, which would run closer to $640 over the same ten years.
How the Keystone KSTAD224F compares
The dehumidifier class we track runs from $19 to $521 a year. At $52/yr, it runs about $12 a year cheaper than the class median of $64, and it is about $33 a year more than the cheapest dehumidifier to run at $19.
What drives its running cost
At 22.31 pints/day, the Keystone KSTAD224F is a small dehumidifier for its class, which spans 1.91 to 172.13 pints/day with a median of 32.46 pints/day, less capacity to service is usually the first reason a running-cost figure lands on the low side, before efficiency even enters the picture. Its IEF of 1.7, below 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). 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 Keystone KSTAD224F cheap to run?
Yes, relatively. At $52 a year it ranks #136 of 519 dehumidifier models we track, in the cheaper part of its class to run.
How much does the Keystone KSTAD224F cost per month?
Roughly $4.3/mo, spreading the $52/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 278 kWh from ENERGY STAR and multiply it by the US average residential electricity rate of $0.1856/kWh, giving about $52 a year. It is an electricity-only estimate and does not include purchase price, water, or installation.
How efficient is the Keystone KSTAD224F for its size?
7th percentile once size is factored in, a fairly typical result for the class.
Cheaper to run in the same class
Source
ES_1055302_KSTAD224F_11222024074938_8499804View certified dehumidifier listingsENERGY STAR data as of July 2026Keystone and KSTAD224F 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.