My nice and neat little alcohol stove that Ken Cook made for me. Chicken wire screen inside the can and the outer can started out life as a short, tubby can of Dinty Moore Beef Stew.
You put it all together and put the old lid on it and it's a nice little set up, don't you think? You use a stainless steel cup that holds about one cup of water and it will boil it in 12 minutes when it is several degrees below freezing outside. This larger canteen cup take about 15-17 minutes, holds a larger amount of water that you can get a cup of coffee and a small container of Cup of Noodles going on.
The best fuel for it, the cleanest burning, is HEET (yellow bottle). HEET is methanol (methyl alcohol).
When I worked midnight shift, this little kit was a great companion on bitter cold nights as I didn't really have so much as a "kitchenette" to use at work.