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When you build a traditional fire you think that those rolling flames and glowing coals are about as good as it can get. Well, just ask a blacksmith, the fire gets better, hotter and more effective if you add one thing – air.
The idea behind a rocket stove is to allow air into the base of the fire and create a fire that burns hotter. These “stoves” are not often stoves at all but more like DIY projects made of everything from brick, stone, tin cans, aluminum or any other scraps that can be cobbled together.
Knowing how to build one from bricks or stones is practical knowledge, that if held by people, such as those recovering from a disaster or Hurricane Katrina-like flooding, can help them get hot food prepared, without outside assistance, and get people fed.
So, Why do I Need One?
Well, maybe having one is not as important as having the skills to build one. Sure you can create a rocket stove, to go, out of a simple ammo can and it will hold up. However, it might not be worth the weight to carry.
You should get out and make a few different varieties. Cook on them. Burn them for a while and start to understand what makes the best ones work. You see, some things are about skills and not gear.
The rocket stove is much more about a concept than it is about having a THING to carry. However, in a survival situation, there is nothing like having a stove that starts up with little fuel and runs on little fuel.