Waykar CHWA80B: running cost
At 260 kWh/yr, the Waykar CHWA80B's ENERGY STAR certification puts it one of the cheaper models in its category to run against every other certified dehumidifier.
That $49 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 31.2% less, ranking 108 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 $22/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 Waykar CHWA80B: Waykar CHWA80A ($49/yr, 260 kWh/yr), then Waykar CHWA80E ($49/yr, 260 kWh/yr).
Same brand, different models
Ranked 12 of Waykar's 39 certified dehumidifiers, this sits between the CTH30A ($22/yr, the brand's cheapest) and the CTH150PB ($97/yr, its priciest).
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
Efficient as certified dehumidifiers go, $49/year is a reasonable baseline if you're comparing what else is on the market.
See what else is certified in this category before you decide.
If you're keeping it
A dehumidifier like the Waykar CHWA80B is a real household expense whether or not it needs replacing yet; a protection plan is one way to budget for a repair rather than a full replacement.
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 108 of 546, the Waykar CHWA80B 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.