"Wes" wrote in message
...
"Artemus" wrote:

Another option not mentioned yet is to add a diode in series
with the heater element. It has to be rated right, 25A @400V
will do nicely, and heatsunk. Note: any control circuitry that
also needs 120V will need to have a step-down xformer as the
diode trick will not work with xformers and some relays. But
now the step-down xformer is a small relatively inexpensive one.
Art


iirc, if you double the voltage you quadruple the power output. Clipping half of
sine
wave should give you twice the original power output and might over temp the
element.

Wes

Oops, major brain fart. You're right. Cancel that.
Art