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 ? ) C) x, U1 }. c! O' b3 h 5 `6 I. P/ |* B" KAlso what's the difference between current model of Malata Karaoke player compare with earlier models ( r/ @$ T) L2 \; E* v' |Thanks for help.