What is the loss of induction melting furnace?

בתהליך העבודה של אינדוקציה כור ההיתוך, generally only 70-74% of the energy is used for the smelting of the charge, and the other 30-26% of the energy is lost through the various ways we mentioned above, of which the copper consumption is as high as 13%, followed by 7% of furnace consumption, the rest is additional loss.