"Vey" wrote in message
ink.net...
wrote:
On Tue, 17 Jul 2007 21:04:05 GMT, (Joe) wrote:

Lasko Premium 20" three-speed box fan

http://www.amazon.com/gp/product/pro...4507&s=kitchen

170 watts

This is the next to useless number I mentioned in my post. It is the
theoretical maximum amount based on the theoretical voltage. In the field,
voltage can vary and so can the usage. I know it sounds nutty, but I've
seen variations of more than 15% from the theory and that, to me, is
unacceptable.

If its a ventilation fan exposed to the great outdoors, wind direction could
easily account for a 15% variation in power draw.