On Sunday, March 4, 2012 11:42:35 PM UTC, Rod Speed wrote:

If it was JUST there to move the air, you'd have it at the top,
and where it doesnt radiate to the bi metallic strip. AND
you'd have it on all the time, not just when the load is on.

Who said it was JUST there to move the air?
It does move the air though.