Model
Frigidaire FHDD3534Y1
Rank #301 means 300 of the 519 dehumidifier models we track cost less to run each year; the 49th efficiency percentile means it uses less energy for its size than 49% of those models.
What does the Frigidaire FHDD3534Y1 cost to run per year?
At $70 a year to run, the Frigidaire FHDD3534Y1 sits close to the middle of its class on cost, ranking #301 of 519 dehumidifier models we track. Once capacity is factored in, its efficiency percentile of 49 is fairly typical for the class, neither a standout nor a laggard. Its IEF of 2.01 reflects integrated energy factor, one of the class's core efficiency levers.
Immediately around it on the leaderboard, the Baseaire AirWerx 55S at $70/yr runs a little cheaper and the Glowells PD120A at $70/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 Frigidaire FHDD3534Y1's $70/yr adds up to roughly $560 in electricity alone, before purchase price or repairs.
By the numbers
The Frigidaire FHDD3534Y1 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 $70/yr, here is what the Frigidaire FHDD3534Y1 adds up to before purchase price, water, or repairs enter the math.
Left running for a decade at today's US average rate, the Frigidaire FHDD3534Y1 costs about $700. That is roughly $60 more than the class median, which would run closer to $640 over the same ten years.
How the Frigidaire FHDD3534Y1 compares
The dehumidifier class we track runs from $19 to $521 a year. At $70/yr, it runs about $6 a year above the class median of $64, and it is about $51 a year more than the cheapest dehumidifier to run at $19.
What drives its running cost
At 35.85 pints/day, the Frigidaire FHDD3534Y1 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. 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 Frigidaire FHDD3534Y1 cheap to run?
It is about average. At $70 a year it ranks #301 of 519 dehumidifier models we track, close to the middle of its class on running cost.
How much does the Frigidaire FHDD3534Y1 cost per month?
Roughly $5.86/mo, spreading the $70/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 379 kWh from ENERGY STAR and multiply it by the US average residential electricity rate of $0.1856/kWh, giving about $70 a year. It is an electricity-only estimate and does not include purchase price, water, or installation.
How efficient is the Frigidaire FHDD3534Y1 for its size?
49th percentile once size is factored in, a fairly typical result for the class.
Cheaper to run in the same class
Source
ES_1021080_FHDD3534Y1_08062025140935_80259133View certified dehumidifier listingsENERGY STAR data as of July 2026Frigidaire and FHDD3534Y1 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.