A typical Frigidaire dehumidifier uses between 300 and 700 watts of electricity, depending on the model and capacity. Most common residential units—those designed to remove 30 to 70 pints of moisture per day—fall in the 400 to 600-watt range during normal operation.
Actual energy consumption depends on several factors: the dehumidifier's size and extraction capacity, the humidity level in your home, room temperature, and how often the unit runs. A larger capacity model rated for 70 pints per day typically uses more power than a compact 30-pint unit. The dehumidifier will cycle on and off based on your target humidity setting, so it doesn't run continuously at full power. During the compressor cycle, it draws peak wattage; during standby or when the humidity target is reached, consumption drops significantly.
To estimate monthly energy costs, you can multiply the wattage by hours of operation and divide by 1,000 to get kilowatt-hours, then multiply by your local electricity rate. For example, a 500-watt unit running 8 hours daily costs roughly 120 kilowatt-hours monthly. Check your specific model's manual or the EnergyGuide label, which provides estimated annual operating costs based on standard usage patterns. This gives you a more accurate figure than wattage alone, since it accounts for typical run cycles and climate conditions.