The Backcountry Boiler is a new chimney kettle
that is being produced on a small scale here in the U.S.A. It is a lightweight and efficient way to boil water either for cooking or treatment and has the advantage of shaving off loads of weight in fuel. This is a very cool new product to the world of lightweight backpacking.
Taken from website
Why you want one
Light – Roughly the same size and weight as a wide-mouthed water bottle
Versatile - Can operate on virtually anything flammable (so no fuel to carry, but also unlimited hot water. It’s basically like perpetual motion.)
Fast – depending on fuel and operator skill, it can boil 2 cups of water in under 5 minutes
Delicious – Makes hot drinks, rehydrates backpacking meals (yum)
Quenching – Can be used as a canteen to carry water when not in use
Sanitary – Creates potable water through boiling
Hard Core – Works in almost any weather – moderate wind actually makes it burn hotter!
Low Impact – Burns efficiently so it requires little kindling and leaves little ash
Awesome – seriously. Once this thing gets going, it’s like the bellows of Hades.