Starting up the stove:
Boiling water in about 5 minutes:
The Woodgas Stove used in the demonstration for about 68.00 USD
The stove is shipped from this company: http://www.woodgascampstove.com
How gasification works:
http://www.ienergyinc.com/content/view/20/34/
Links:
http://hearth.com/econtent/index.php/wiki/Downdraft_Stove_Operation
http://www.crest.org/discussiongroups/resources/stoves/Reed/T1.htm