BrettS
Active Member
(assuming per hour but not sure)
Just FYI, watts is an instantaneous measure of power. It can easily be converted to watt hours or kilowatt hours based on how long it runs. For example, if you run the fan on high at 490W for one hour then it will use 490Wh (490 x 1). If you run it it for three hours it will use 1470Wh (490 x 3) or 1.47kWh (1470 / 1000)