....The stove is a modification of the Avan http://e-avanstove.blogspot.com/ + Inverted Downdraft to reduce the height of it so that small food/noodle shop in rural area may be interested in trying it......- Monk Viravat Charoenbenchavong
http://www.bioenergylists.org/geoavanstove
http://www.youtube.com/watch?v=lzqE8_D-tTU&feature=share