Hi guys, this is my first post here, and I need help. I've built a very small rocket stove and I think I may have done something wrong, since the outer part of the stove heats up and I don't think it's supposed to, and it's generating much smoke. I haven't taken much time playing with it and trying to figure out the best way to burn wood. I made the rocket stove out of metal cans, and ash+soil+cement for the insulation. I think something's wrong with the insulation. This is my first try though, and mistakes do happen. But I sure would like to have a working, efficient and preferably self-feeding rocket stove. I also prefer it to be movable (if not portable), so laying bricks won't do. I live in the Philippines by the way.