On Mon, 20 Dec 2004 14:30:12 -0600, (m Ransley)
wrote:

It sound like you have a high efficency condensing furnace, the whine is
a motor blowing the system clear.

A motor, blowing the system clear?
Ransley. Where do you come up with these terms?
I believe you are talking about a Draft Inducer venter motor. It
doesnt blow. It provides a negative pressure inside the heat
exchanger.
Is it a Tempstar, Keeprite, Heil, ICP furnace?
How about a model and serial number?
Bubba