KESNOS CTH30E: running cost
The KESNOS CTH30E is certified by ENERGY STAR at 117 kWh a year, one of the cheaper models in its category to run among dehumidifiers currently certified.
That $22 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 69% less, ranking 19 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 $49/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 KESNOS CTH30E: KESNOS CTH30B ($22/yr, 117 kWh/yr), then Waykar CTH30A ($22/yr, 117 kWh/yr).
Same brand, different models
Ranked 2 of KESNOS's 6 certified dehumidifiers, this sits between the CTH30B ($22/yr, the brand's cheapest) and the JD026N-150 ($95/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.
Is it worth replacing?
Efficient as certified dehumidifiers go, $22/year is a reasonable baseline if you're comparing what else is on the market.
Compare current ENERGY STAR certified dehumidifiers before buying.
If you're keeping it
At $22/year just to run, a dehumidifier is worth protecting against an unplanned repair bill on top of that.
Where this number comes from
At rank 19 of 546 for running cost, see the dehumidifier category page for the rest of the field, or the guide to how much your state matters. The 117 kWh/yr figure is ENERGY STAR's own certification, not a wattage estimate; exact dataset IDs are on the data sources page.