Dehumidifier Electricity Cost
Estimate dehumidifier daily and monthly cost.
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Formula
Calculation logicFrequently asked questions
How much does a dehumidifier cost to run?
A 300W unit at 60 percent duty for 10 hours uses 1.8 kWh daily, about $9 a month.
What humidity setting is best?
45 to 50 percent balances comfort, mold control, and runtime. Lower targets run far longer.
Does room temperature matter?
Cold basements cut efficiency. Compressor models struggle below 60 F; desiccant suits cold spaces.
How can I cut runtime?
Seal air leaks, vent dryers outdoors, and drain continuously so the bucket never pauses the unit.
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