Jim... I've posted this before, and you may have seen it...from the vids I've viewed, it seems that the isopropyl stoves need some form of glowing wire preheat and lots of air, low in the combustion chamber... I used 1/4" hardware cloth... two rings on the outside for a pot support and an inner ring for a vaporization chamber...screen in bottom to tie the mesh together... hand paper punch for the air holes... this is burning 70% isoproply... needs to preheat until the wire mesh glows, then needs the pot to sit on top