Can someone tell me how to use this kind of stove ? Is it true that only works with metallic pots, since the top is flat, I must use flat bottom pots to get larger area of contact ? & K8 J6 B# } @2 e' v 3 @9 s' V# a4 W7 L+ wAlso what's the difference between current model of Malata Karaoke player compare with earlier models $ q- s% L8 \# e/ G' {5 l/ F3 ?Thanks for help.