induction heater? Answered

Pretty much all you'd want to know here:

http://www.neon-john.com/Induction/Index.htm

This one is probably the best, as it is available from us (fluxeon.com) as a kit.

http://www.neon-john.com/Induction/Roy/Roy.htm

John

 
There's a pretty good writeup on the design and build of a small induction heater HERE.