Question: how many kwh does dehumidifier use?
Answer: An average model of dehumidifier works at 280 Watts- hour. Let us assume your present power rate is 15 cents/kW, the Unit uses 4.2 cents of power every 60 minutes. Hence, if you put it on for 12 hours daily, the cost will become 12 * 4.2 cents = 50.4 cents.