I like copper coil alcohol burners for the small hot focused flame but I don't like how tall they tend to be or how so much of the flame is wasted hitting the coil so I came up with this. Two copper arches with wicks going up about half way spaced about 1.5 cm apart at the top and spanned by a piece of steel mesh. The mesh catches the flame and enough heat transfers to the copper to keep the reaction going. I haven't done a boil test yet but it looks promising. Fuel lasts a long time too. The whole unit is about 2.5 inches high. I don't have the ability to weigh it. The only thing I don't like is it's a pain to prime with a flat top like that, pop cans would be better to make it from in that respect.