Model
Danby DDY040D1DSDB
Rank #79 means 78 of the 615 clothes dryer models we track cost less to run each year; the 72nd efficiency percentile means it uses less energy for its size than 72% of those models.
What does the Danby DDY040D1DSDB cost to run per year?
At $59 a year to run, the Danby DDY040D1DSDB is among the cheapest clothes dryer models we track, ranking #79 of 615. Its 72th size-adjusted efficiency percentile is a step ahead of the class median, though not among the very top results. The CEF figure of 2.68 on this model captures combined energy factor, the main efficiency lever ENERGY STAR tracks for this class.
Immediately around it on the leaderboard, the Aeg DC240 at $59/yr runs a little cheaper and the Kenmore 8120# at $59/yr runs a little more, a sense of how tightly models are packed at this point in the ranking. A clothes dryer typically stays in service for somewhere around 13 years; over that span, the Danby DDY040D1DSDB's $59/yr adds up to roughly $767 in electricity alone, before purchase price or repairs.
Also sold as: Aeg DC240.
By the numbers
The Danby DDY040D1DSDB 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 $59/yr, here is what the Danby DDY040D1DSDB adds up to before purchase price, water, or repairs enter the math.
Left running for a decade at today's US average rate, the Danby DDY040D1DSDB costs about $590. That is roughly $540 less than the class median, which would run closer to $1130 over the same ten years.
How the Danby DDY040D1DSDB compares
The clothes dryer class we track runs from $23 to $128 a year. At $59/yr, it runs about $54 a year cheaper than the class median of $113, and it is about $36 a year more than the cheapest clothes dryer to run at $23.
What drives its running cost
At 4 cu ft, the Danby DDY040D1DSDB is a small clothes dryer for its class, which spans 3.8 to 9.2 cu ft with a median of 7.4 cu ft, and smaller clothes dryer models generally cost less to run for the same job, all else being equal. Its CEF of 2.68, below the class median of 3.93, reflects combined 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.
- Heat source and Combined Energy Factor (CEF). CEF combines drying performance with standby and off-mode energy use; for a given drum size, a higher CEF means less energy per pound of laundry dried, and heat-pump models usually post the highest figures in the class.
- Drum capacity. Drum capacity sets how much laundry one cycle can hold, and heating a bigger volume of air generally costs more energy per cycle.
Common questions
Is the Danby DDY040D1DSDB cheap to run?
Yes, relatively. At $59 a year it ranks #79 of 615 clothes dryer models we track, in the cheaper part of its class to run.
How much does the Danby DDY040D1DSDB cost per month?
Roughly $4.9/mo, spreading the $59/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 317 kWh from ENERGY STAR and multiply it by the US average residential electricity rate of $0.1856/kWh, giving about $59 a year. It is an electricity-only estimate and does not include purchase price, water, or installation.
How efficient is the Danby DDY040D1DSDB for its size?
72nd 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
| Rank | Model | Cost/yr |
|---|---|---|
| 79 | Aeg DC2404 cu ft | $59 |
| 78 | Fulgor Milano FM4CD24W14 cu ft | $59 |
| 77 | Equator Advanced Appliances CD 4040 **4 cu ft | $59 |
| 76 | Magic Chef MCSDRY24W14 cu ft | $59 |
| 75 | Bosch WTG865H4UC4 cu ft | $59 |
Source
ES_31682_DDY040D1DSDB_062620232018728_1485379View certified clothes dryer listingsENERGY STAR data as of July 2026Danby and DDY040D1DSDB 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.