What the HBN PD21MB-20 costs to run
The HBN PD21MB-20 is certified by ENERGY STAR at 182 kWh a year, one of the cheaper models in its category to run among dehumidifiers currently certified.
The $34 figure above uses the simple average of all 51 published state rates. Pick your state for the real number.
Where this ranks
That's 51.9% below the dehumidifier category average of 378 kWh/yr, and ranks 63 of 546 certified dehumidifiers for annual running cost, 1 being cheapest. Every one of the 546 currently-certified dehumidifiers feeds that average, putting this model about $37/year under it. See how it's calculated on the how it is calculated page.
The closest alternatives by cost
Sorted by running cost among dehumidifiers, one step cheaper is BEHOME PD21MB-20 ($34/yr, 182 kWh/yr), and one step pricier is Jack&Rose DH02 ($34/yr, 182 kWh/yr).
Within the HBN lineup
The HBN PD21MB-20 is the only dehumidifier from HBN 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.
Weighing a replacement
The HBN PD21MB-20 is already efficient for its category at $34/year. If you're shopping and comparing options, this is roughly what a well-chosen new dehumidifier costs to run.
Compare current ENERGY STAR certified dehumidifiers before buying.
Protecting what you have
Whether or not the HBN PD21MB-20 ever needs replacing, a repair is the more common failure for a dehumidifier, one a protection plan budgets for ahead of time.
The data behind this page
The full Dehumidifier category page shows all 546 dehumidifiers ranked by cost; the state-rate guide covers the half of this number that isn't the appliance. The 182 kWh/yr figure is ENERGY STAR's own certification, not a wattage estimate; exact dataset IDs are on the data sources page.