Running cost for the DGUAM V2
At 183 kWh/yr, the DGUAM V2's ENERGY STAR certification puts it one of the cheaper models in its category to run against every other certified dehumidifier.
That $34 is priced at 18.8¢/kWh, the average of all 51 state rates this site tracks. Your own state's rate is one click away.
Efficient, or not, for a dehumidifier
Against the category average of 378 kWh/yr, this model uses 51.6% less, ranking 65 of 546 dehumidifiers tracked here for running cost. That average is drawn from all 546 dehumidifiers ENERGY STAR currently certifies, not an outside number, a $37/year gap from this model at the national rate. Full sourcing is in the sourcing notes.
Right next to it on the list
A rank or two either side of the DGUAM V2: Jack&Rose DH02 ($34/yr, 182 kWh/yr), then COSTWAY ES10328US-WH ($36/yr, 191 kWh/yr).
Within the DGUAM lineup
The DGUAM V2 is the only dehumidifier from DGUAM that ENERGY STAR currently certifies, so there's no same-brand model to weigh it against here, only the full dehumidifier category.
Lifespan
NAHB's Study of Life Expectancy of Home Components does not publish a figure for dehumidifiers, so no lifetime cost is shown here rather than a guessed one. The annual and monthly figures above stand on their own.
Is it worth replacing?
Efficient as certified dehumidifiers go, $34/year is a reasonable baseline if you're comparing what else is on the market.
Worth comparing a few current certified models before deciding.
If you're keeping it
Whether or not the DGUAM V2 ever needs replacing, a repair is the more common failure for a dehumidifier, one a protection plan budgets for ahead of time.
Where this number comes from
Ranked 65 of 546, the DGUAM V2 sits in the middle of the dehumidifier category, see the guide to why your state changes this number for the other half of the math. The 183 kWh/yr figure is ENERGY STAR's own certification, not a wattage estimate; exact dataset IDs are on the data sources page.