>>4507922nd alternative way = lay can on its side. resting the ends on whatever.
light and place 2 to 3 candles along under side to warm up soup.
place half can (split vertically) undernieth to reflect heat back onto soup can.
damn, i must be fubar......
but, hey. trying out crazy ideas is how i ended up making over 110 songs on my guitar...... (^^,)
PIC = virtical heating idea
2nd more efficent way = horizontal can heating......
