Make Your Own Cheap and Efficient Rocket Stove

Keith Levy of New Zealand whipped up this neat little rocket stove out of two small cans cut and fit together inside of a larger can. He says:

I love cooking on an open flame and I love rocket stoves. That doesn’t make me a pyrothingamee, it just means I like getting back to basics. In fact if I don’t get back to basics at least once a day then it hasn’t been a good day.

I like that! So much that I made it large: