I want to make a home made induction furnace for melting cast iron of quantities of 50kg per batch.?

Question

I would like to know what would be the best design while keeping the cost low( both installation and working)

Answer 1

First you should figure how much electricity you would need to melt that quantity in the time you are willing to take. I guarantee you it will be monstrous, and perhaps your utility does not supply you with that much current.

In your calculations, don't forget to include a big hunk for heat losses while you are heating.