On Fri, 21 Jan 2005 14:24:05 -0600, (m Ransley)
wrote:

Is the furnace on its own circuit, is panel 60 A? A furnace should pull
load at startup but not enough to dim other lights unless 60A is your
service. AC on the other hand pulls alot more. More info needed.

Obviously you've never seen an old belt drive blower motor with a bad
start winding. What exactly do you do because it sure isnt this.
Bubba