Gene Heskett <>:

> Looking at the whole system, about the only energy input that is not 
> converted to heat, would be the milliwatt or 3 of sound from the speaker 
> when it beeps at you, and the additional energy to spin the fans.

That all becomes heat as well.

The dust particles that stick to the ceiling would be an example of
energy not wasted as heat (gravitational potential energy).


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