Dear Rajan >In TLUD, the fuel bed is comparatively thick and the resistance to air flow can be quite high.
I am proposing that no attempt be made to bring air through the fuel bad at all. The stove we were discussing last week that was burning the huge 24" long logs with a cross draft fire at the back is certainly getting no air at all through the fuel - it is sealed on top. I think it is worth looking into a fire that is perhaps on its side introducing air in a way that pushes it towards the open end of the sawdust container. John Davies does this with his secondary air supply. I have done it with a TLUD coal stove. There is nearly no air coming through the fuel and they burn pretty well. The worst cases for sawdust seem to be bottom lit with a small (and growing) hole in the centre (a-la-VITA handbook). Regards Crispin _______________________________________________ Stoves mailing list to Send a Message to the list, use the email address Stoves mailing list to UNSUBSCRIBE or Change your List Settings use the web page http://lists.bioenergylists.org/mailman/listinfo/stoves_lists.bioenergylists.org for more Biomass Cooking Stoves, News and Information see our web site: http://www.bioenergylists.org/ [email protected] http://lists.bioenergylists.org/mailman/listinfo/stoves_lists.bioenergylists.org
