On Thu, 7 Dec 2006 21:53:26 EST, CAVM at aol.com wrote: >(http://www.sredmond.com/vthr_index.htm) It looks like a turbulent top lit top burning combustor as has been discussed a number of times on the stoves list. A picture of an old one of mine is at: http://www.wokingnursery.co.uk/agwaste/chipburner.html AJH