Running cost for the Perfect aire 4PFDP50
ENERGY STAR certifies the Perfect aire 4PFDP50 at 525 kWh/yr, one of the more expensive models in its category to run for its category.
That $99 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
The category average is 378 kWh/yr; this model runs 38.9% above it, ranking 478 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 $28/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 Perfect aire 4PFDP50: Perfect aire 4PFD50 ($99/yr, 525 kWh/yr), then Seasons SD50CP1 ($99/yr, 525 kWh/yr).
Within the Perfect aire lineup
Of the 4 ENERGY STAR certified dehumidifiers Perfect aire makes, the 4PFDP50 costs the most to run, $46/year more than Perfect aire's cheapest, the 3PFD22.
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.
Weighing a replacement
The Perfect aire 4PFDP50 runs above its category average. If the dehumidifier you actually own is older still, likely well past ENERGY STAR's efficiency baseline when it was made, a current certified model could cost meaningfully less than this model's $99/year every year.
Worth comparing a few current certified models before deciding.
If you're keeping it
$99/year to run is the predictable cost of the Perfect aire 4PFDP50; a protection plan covers the unpredictable one, a repair bill.
Where this number comes from
Two sourced numbers, nothing modeled: ENERGY STAR's certified kWh/yr for this exact model, and EIA's published state electricity rate. Ranked 478 of 546, the Perfect aire 4PFDP50 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.