<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto"><div>Tom,</div><div><br></div><div>I find that the use of a gap for the secondary air, NOT holes, combined with the use of washers as deflectors, greatly improves turbulence [fuel air mixing] as well as residence time in the combustion zone. This technique generally keeps the flames within the TLUD. Long flames coming out of a tLud are going to carry a lot of particulate matter out with them. Fan not required.</div><div><br></div><div>Checkout my post on Greater Democracy on Pyro-Grilling.</div><div><br></div><div>Cheers,</div><div><br></div><div>Jock</div><div><br><div>Jock Gill</div><div>P.O. Box 3</div><div>Peacham, VT 05862</div><div><br></div><div>Cell: (617) 449-8111</div><div><br></div><div><span style="font-weight: bold; text-decoration: underline; background-color: rgba(255, 255, 255, 0);"><a href="http://google.com/+JockGill">google.com/+JockGill</a></span></div><div><br></div><div><span style="background-color: rgba(255, 255, 255, 0);">:> Extract CO2 from the atmosphere! <:</span></div><div><br></div>Via iPad</div><div><br>On Feb 26, 2014, at 1:06 AM, Tom Miles <<a href="mailto:tmiles@trmiles.com">tmiles@trmiles.com</a>> wrote:<br><br></div><blockquote type="cite"><div><span>Tlud users can comment but in general the gas that the TLUD generates is about the same density as the air it reacts with. To get a good tight flame you need energy (pressure) to mix the two gases. That's where a fan is handy. </span><br><span></span><br><span>Tom</span><br><span></span><br><span>Sent from my iPad</span><br><span></span><br><blockquote type="cite"><span>On Feb 25, 2014, at 9:31 PM, "<a href="mailto:revjcsd@juno.com">revjcsd@juno.com</a>" <<a href="mailto:revjcsd@juno.com">revjcsd@juno.com</a>> wrote:</span><br></blockquote><blockquote type="cite"><span></span><br></blockquote><blockquote type="cite"><span>Is there a discussion on how to control DIY TLUD's flame somewhere in the archive? Or elsewhere?</span><br></blockquote><blockquote type="cite"><span></span><br></blockquote><blockquote type="cite"><span>Other than the Belonio-Olivier burner, I have yet to see a TLUD without the long tail of flame.</span><br></blockquote><blockquote type="cite"><span></span><br></blockquote><blockquote type="cite"><span>Thanks.</span><br></blockquote><blockquote type="cite"><span></span><br></blockquote><blockquote type="cite"><span>_______________________________________________</span><br></blockquote><blockquote type="cite"><span>Stoves mailing list</span><br></blockquote><blockquote type="cite"><span></span><br></blockquote><blockquote type="cite"><span>to Send a Message to the list, use the email address</span><br></blockquote><blockquote type="cite"><span><a href="mailto:stoves@lists.bioenergylists.org">stoves@lists.bioenergylists.org</a></span><br></blockquote><blockquote type="cite"><span></span><br></blockquote><blockquote type="cite"><span>to UNSUBSCRIBE or Change your List Settings use the web page</span><br></blockquote><blockquote type="cite"><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></blockquote><blockquote type="cite"><span></span><br></blockquote><blockquote type="cite"><span>for more Biomass Cooking Stoves, News and Information see our web site:</span><br></blockquote><blockquote type="cite"><span><a href="http://stoves.bioenergylists.org/">http://stoves.bioenergylists.org/</a></span><br></blockquote><blockquote type="cite"><span></span><br></blockquote><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>