john zeiss > wrote:

> The pot looks like a miniature witches cauldron with a curved bottom and
> three tiny little stumpy legs to rest on. The fact that the pot surface
> area in contact with the induction heater surface is reduced to three little
> legs, would that mean that electricity is actually being wasted in heating
> such a pot or is it that it just would not heat up very much using an
> induction heater ?

To achieve a measurable - in practice - effect, there will have to be
some contact and, with a concave pot bottom, there will be hardly any.
So, an induction heater will have to be concave, too, something on these
lines: <http://www.trendir.com/archives/000363.html>. However, to be at
all efficient, the curvature of the pot will have to match that of the
heater - and that can be a problem with any pot not specifically matched
with the heater. Besides, those little legs will probably make it
impossible anyway.

Victor