<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto"><div>I watched the video. Based on the essentially unlimited primary air, I have to conclude the goal is pure mineral ash.</div><div><br></div><div>The insulation is interesting as the rice hulls should reduce to carbon and form insulating air pockets- sort of like foam.</div><div><br></div><div>If anyone knows how to reach the makers, it would be interesting to change the secondary air as follows:</div><div><br></div><div>1. Larger holes for better fuel - air ratio;</div><div><br></div><div>2. Put the three levels of holes on a 45 degree line, rather than vertically - as shown, to increase swirling turbulence for cleaner combustion of the wood gases.</div><div><br></div><div>Otherwise it looks like a very nice TLUD indeed. Elegantly simple. Not having to dump out, quench, and store Biochar increases the simplicity very nicely. It also will use less feedstock than a stove making Biochar. A version off this design that made Biochar is easy to imagine, if the demand for such a unit develops.</div><div><br></div><div>I wish them every success.</div><div><br></div><div>Cheers,</div><div><br></div><div>Jock</div><div><br></div><div><br></div><div><br><br><div><div style="font-family: UICTFontTextStyleBody; -webkit-text-size-adjust: auto;">Jock Gill</div><div style="font-family: UICTFontTextStyleBody; -webkit-text-size-adjust: auto;">P. O. Box 3</div><div style="font-family: UICTFontTextStyleBody; -webkit-text-size-adjust: auto;">Peacham, VT 05862</div></div><div style="font-family: UICTFontTextStyleBody; -webkit-text-size-adjust: auto;"><br></div><div><a href="https://plus.google.com/_/notifications/emlink?emr=02164940119180120523&emid=CIn6jOiavboCFcgLTAodARYAAA&path=%2F102260924343967128597%2Fop%2Fu&dt=1383089746165&ub=50" style="font-weight: bold; background-color: rgba(255, 255, 255, 0);"><font color="#000000">google.com/+JockGill</font></a></div><div><br></div>Extract CO2 from the atmosphere!</div><div><br>On Nov 29, 2014, at 1:18 PM, <a href="mailto:acparker@xmission.com">acparker@xmission.com</a> wrote:<br><br></div><blockquote type="cite"><div><span>I noticed several views of ash spilling out the air opening (I think they are explaining it at 22:05). Is it designed to burn to ash? Is that the purpose of the lower tier of air holes (above the grate support holes)?</span><br><span></span><br><span></span><br><span></span><br><span>_______________________________________________</span><br><span>Stoves mailing list</span><br><span></span><br><span>to Send a Message to the list, use the email address</span><br><span><a href="mailto:stoves@lists.bioenergylists.org">stoves@lists.bioenergylists.org</a></span><br><span></span><br><span>to UNSUBSCRIBE or Change your List Settings use the web page</span><br><span><a href="http://lists.bioenergylists.org/mailman/listinfo/stoves_lists.bioenergylists.org">http://lists.bioenergylists.org/mailman/listinfo/stoves_lists.bioenergylists.org</a></span><br><span></span><br><span>for more Biomass Cooking Stoves, News and Information see our web site:</span><br><span><a href="http://stoves.bioenergylists.org/">http://stoves.bioenergylists.org/</a></span><br><span></span><br></div></blockquote></body></html>