I just recently completed my second woodstove for hot-tent camping. The new stove was made out of 26ga galv sheet metal and designed to be a large 11"x11"x24" for longer heat retention. I added the same old features as my old stove but also some new practical details.
Rather than re-writing my comments from the "construction" process, please check the link below. You can also click on each picture for a closer look.
http://life-outside.smugmug.com/gallery/7229725_4oBJh
Enjoy!!!