I have collected antique stoves from around Europe for years
and finally have made my own. The stove is called ‘The Hobbit’
and is a small stove designed specifically for small places.
you can see a video of the stove at http://www.stoveworld.info.
I would like to find a US based individual or company who would like to
import and sell my little stove.
The stove has EN approval and has an energy efficiency of 75%.
Additional components can also be included which improves the efficiency
to 82% and allows the stove to be operated in the strictest smokeless zones.

Here are the inside air flow properties. All those interested in secondary combustion may find this interesting