You can put an alcohol stove in a single pit or Dakota fire hole. You can dig that pit with a digging-stick, which you can cut from a branch, with a sharp knife or wood-saw. Line the pit with aluminum foil for better heat reflection.
Burning alcohol can be hard to extinguish, if it spills indoors while burning. So put the alcohol stove in a metal pot, on a safe place.
Filling the alcohol into the alcohol stove, is safer with a spoon, than with the bottle, since the flame is hardly visible. http://zenstoves.net/Stoves.htm