Model
Keystone KSTAD506PG
Rank #437 means 436 of the 519 dehumidifier models we track cost less to run each year; the 56th efficiency percentile means it uses less energy for its size than 56% of those models.
What does the Keystone KSTAD506PG cost to run per year?
At $97 a year to run, the Keystone KSTAD506PG is among the more expensive dehumidifier models we track to run, ranking #437 of 519. Its 56th size-adjusted efficiency percentile is unremarkable, close to what a typical model in the class scores. Its IEF of 2.01 reflects integrated energy factor, one of the class's core efficiency levers.
Immediately around it on the leaderboard, the Keystone KSTAD504G at $97/yr runs a little cheaper and the Amazon Basics B0GR2TN8YX at $97/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 KSTAD506PG's $97/yr adds up to roughly $776 in electricity alone, before purchase price or repairs.
Also sold as: Amazon Basics B0GR2TN8YX.
By the numbers
The Keystone KSTAD506PG 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 $97/yr, here is what the Keystone KSTAD506PG 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 KSTAD506PG costs about $970. That is roughly $330 more than the class median, which would run closer to $640 over the same ten years.
How the Keystone KSTAD506PG compares
The dehumidifier class we track runs from $19 to $521 a year. At $97/yr, it runs about $33 a year above the class median of $64, and it is about $78 a year more than the cheapest dehumidifier to run at $19.
What drives its running cost
At 49.74 pints/day, the Keystone KSTAD506PG is a large dehumidifier for its class, which spans 1.91 to 172.13 pints/day with a median of 32.46 pints/day, among dehumidifier models, bigger capacity is the most common reason a running-cost figure lands on the high side, all else being equal. 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). 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 KSTAD506PG cheap to run?
Not especially. At $97 a year it ranks #437 of 519 dehumidifier models we track, in the pricier part of its class to run, though its size and features may still justify that for your needs.
How much does the Keystone KSTAD506PG cost per month?
Roughly $8.12/mo, spreading the $97/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 525 kWh from ENERGY STAR and multiply it by the US average residential electricity rate of $0.1856/kWh, giving about $97 a year. It is an electricity-only estimate and does not include purchase price, water, or installation.
How efficient is the Keystone KSTAD506PG for its size?
56th percentile once size is factored in. That means its size-adjusted efficiency is a real factor in the running-cost figure above; its capacity plays a large role too.
Cheaper to run in the same class
Source
ES_1055302_KSTAD506PG_102820250309742_9489859View certified dehumidifier listingsENERGY STAR data as of July 2026Keystone and KSTAD506PG 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.