Depends on the unit. Look at the rating plate on the unit. Typical range is 6 to 12 amps.
To calculate the total electricity usage in 24 hours, you multiply the wattage by the number of hours: 820 watts * 24 hours = 19680 watt-hours or 19.68 kWh. To convert that to kilowatt-hours, divide by 1000: 19.68 kWh.
The EnergyStar site, reliable on these matters, points to an interactive calculator on myenergystar site. This estimates the real power consumption based on room size and its humidity (you must give a subjective evaluation). Another choice in the form, for determining power consumption, is to measure how much water is condensed inside every day. This works if you already have the dehumidifier running, The interactive dehumidifier power calculator is at http://www.myenergystar.com/ProductsAndDiscounts.aspx?type=dehumidifier&menu=calculator Guido (tguido56)
45 watts
Hoovers use 1000 - 2000 watts
Abut 20 watts.
650 watts
About 10 watts
189 watts
25 watts.
it may use 15 to 25 watts
250 Watts.
3/4 of watts