This little stove is amazing!! Unlike your boy or girl scout version, you can boil water with a few small sticks, and the stove weighs almost nothing. The super efficient “rocket stove”was designed in the ’80s by a mechanical engineer for the alternative energy education outreach program, Aprovecho. This rocket stove link is a delight. You can buy an inexpensive version for $35 if you dare, and even better is their free pdf booklet on how to make this stove and things like a bread oven from a 55 gallon drum.