On Thu, 4 Nov 2004 16:04:47 -0600, "twfsa" wrote:

The temp stays more constant thru out the house with the fan on 24-7,
especially in the winter, its been on for a year. The fan on my furnace is a
variable speed so its running at a very low speed when the heat or a/c is
not in operation.


It is still costing you. May not be much, but not much running all
the time may still be a lot. Besides the wear and tear on the motor
itself, and those aren't cheap.