Model
Megalight PD-MPC720-WT
Rank #163 means 162 of the 519 dehumidifier models we track cost less to run each year; the 39th efficiency percentile means it uses less energy for its size than 39% of those models.
What does the Megalight PD-MPC720-WT cost to run per year?
Among the 519 dehumidifier models we track, the Megalight PD-MPC720-WT sits in the below-average-cost group, rank #163, at roughly $53 a year. Efficiency-wise, once size is accounted for, it trails most of the class, ahead of only 39% of the models we track. The IEF figure of 1.85 on this model captures integrated energy factor, the main efficiency lever ENERGY STAR tracks for this class.
Immediately around it on the leaderboard, the Midea MDUDA-25AEN8-BB0F at $53/yr runs a little cheaper and the Tcl T25DC9R at $53/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 Megalight PD-MPC720-WT's $53/yr adds up to roughly $424 in electricity alone, before purchase price or repairs.
Also sold as: Tcl T25DC9R, Waykar CTH80D, Whirlpool WHAD251AW.
By the numbers
The Megalight PD-MPC720-WT 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 $53/yr, here is what the Megalight PD-MPC720-WT adds up to before purchase price, water, or repairs enter the math.
Left running for a decade at today's US average rate, the Megalight PD-MPC720-WT costs about $530. That is roughly $110 less than the class median, which would run closer to $640 over the same ten years.
How the Megalight PD-MPC720-WT compares
The dehumidifier class we track runs from $19 to $521 a year. At $53/yr, it runs about $11 a year cheaper than the class median of $64, and it is about $34 a year more than the cheapest dehumidifier to run at $19.
What drives its running cost
At 24.84 pints/day, the Megalight PD-MPC720-WT 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 1.85 on this model, below 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 Megalight PD-MPC720-WT cheap to run?
Yes. Its $53/yr running cost puts it at rank #163 of 519, below what most dehumidifier models we track cost to run.
How much does the Megalight PD-MPC720-WT cost per month?
About $4.38 a month, which is the $53 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: 283 kWh from ENERGY STAR times the US average of $0.1856/kWh comes to about $53 a year. It covers electricity only, not the purchase price, water, or installation.
How efficient is the Megalight PD-MPC720-WT for its size?
39th percentile once size is factored in, a fairly typical result for the class.
Cheaper to run in the same class
Source
ES_1041489_PD-MPC720-WT_030620260320481_4907397View certified dehumidifier listingsENERGY STAR data as of July 2026Megalight and PD-MPC720-WT 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.