<html><head><meta http-equiv="Content-Type" content="text/html charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><div class="">Gordon, Andrew and list:</div><div class=""><br class=""></div><div class=""><span class="Apple-tab-span" style="white-space:pre"> </span>1. Some friends and I wrote about this topic 8 years ago; see:</div><div class=""><a href="http://stoves.bioenergylists.org/EverythingNice_WorldStove" class="">http://stoves.bioenergylists.org/EverythingNice_WorldStove</a>;</div><div class=""> I have forgotten most about the test - which I think we can repeat in a few weeks when my friends are back in town. Now I know better what to look for. </div><div class=""><span class="Apple-tab-span" style="white-space:pre"> </span>If Rob Lavoie (address unknown) is still on the list (he also commented favorably 8 years ago), I hope he will also comment on his experiences.</div><div class=""><br class=""></div><div class=""><span class="Apple-tab-span" style="white-space:pre"> </span>2. The instructions <span style="font-family: Verdana, Tahoma, 'DejaVu Sans', sans-serif; font-size: 12px; font-variant-ligatures: normal; orphans: 2; widows: 2; background-color: rgb(255, 255, 255);" class=""> </span><a href="http://worldstove.com/wp-content/uploads/2009/11/EverythingNice_Stove_Instructions.pdf" style="color: rgb(0, 119, 255); font-family: Verdana, Tahoma, 'DejaVu Sans', sans-serif; font-size: 12px; font-variant-ligatures: normal; orphans: 2; widows: 2; background-color: rgb(255, 255, 255);" class="">http://worldstove.com/wp-content/uploads/2009/11/EverythingNice_Stove_Instructions.pdf</a> </div><div class="">for my friends’ version of the ENS/TLOD led to the holes for the inner can being only 3/4 inch up from the bottom. Not the same issue about these higher “Venturi” hole locations in Gordon’s diagram (which is at <a href="http://worldstove.com/stoves" class="">http://worldstove.com/stoves</a>). I believe this diagram was only intended to get across the downdraft and Venturi principles; the holes for the main updraft outer air wouldn’t be as shown either (at the very bottom).</div><div class=""><br class=""></div><div class=""><span class="Apple-tab-span" style="white-space:pre"> </span>3. Note that the figure supplied by Gordon clearly shows no other holes for the inner can (none on the bottom surface); there is no way the stove in this figure could operate as a TLUD. The instructions violate everything we know about TLUDs. And it did operate. (As a TLOD.)</div><div class=""><br class=""></div><div class=""><span class="Apple-tab-span" style="white-space:pre"> </span>4. Nat’s commercial units operate much better. A typical World Stove sales pitch is at <a href="https://www.youtube.com/watch?v=wI0NvG5EAJg" class="">https://www.youtube.com/watch?v=wI0NvG5EAJg</a>, with 5 more short videos following. There are other "Nat” videos I’ll supply later.</div><div class=""><br class=""></div><div class=""><span class="Apple-tab-span" style="white-space:pre"> </span>5. More coming on Venturi principles - which have no place in TLUDs. </div><div class=""><span class="Apple-tab-span" style="white-space:pre"> </span>Andrew - this to remove your skeptical tendencies - hopefully others as well. The key to all the discussion is the Venturi effect. </div><div class=""><span class="Apple-tab-span" style="white-space:pre"> </span>Background: I was at the same table as Andrew has noted below - in Newcastle UK in 2008. I have had a great deal more interaction with Nat (and Andrew) after that.</div><div class=""><br class=""></div><div class=""><br class=""></div><div class=""><br class=""></div><div class="">Ron</div><div class=""><br class=""></div><div class=""><br class=""></div><br class=""><div><blockquote type="cite" class=""><div class="">On Mar 28, 2018, at 12:01 PM, Andrew Heggie <<a href="mailto:aj.heggie@gmail.com" class="">aj.heggie@gmail.com</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><div dir="ltr" class=""><br class=""><div class="gmail_extra"><br class=""><div class="gmail_quote">On 28 March 2018 at 15:51, Gordon West <span dir="ltr" class=""><<a href="mailto:gordon.west@rtnewmexico.com" target="_blank" class="">gordon.west@rtnewmexico.com</a>></span> wrote:<br class=""><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div style="word-wrap:break-word;line-break:after-white-space" class="">Is this the downdraft stove concept being discussed? (From the World Stove website)<div class=""><br class=""><div class="">
<div style="letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; word-wrap: break-word;" class=""><div style="letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; word-wrap: break-word;" class=""><div class=""><div class=""><span id="cid:D8EBEE31-89CF-48F6-9828-165FC6A1DBEA@PK5001Z"><stove-img10.jpeg></span></div></div></div></div>In this depiction, I do not understand how the feedstock that is below the “gas” holes would ever pyrolyze, whether updraft of downdraft, since no air would be passing through it.</div><span class="HOEnZb"><font color="#888888" class=""><div class=""><br class=""></div></font></span></div></div></blockquote><div class=""><br class=""></div><div class="">Good find Gordon, I had heard Nat talking over the table about this but never seen a schematic, I'm tending toward being sceptical.<br class=""><br class=""></div><div class="">Andrew <br class=""></div></div></div></div>
_______________________________________________<br class="">Stoves mailing list<br class=""><br class="">to Send a Message to the list, use the email address<br class=""><a href="mailto:stoves@lists.bioenergylists.org" class="">stoves@lists.bioenergylists.org</a><br class=""><br class="">to UNSUBSCRIBE or Change your List Settings use the web page<br class="">http://lists.bioenergylists.org/mailman/listinfo/stoves_lists.bioenergylists.org<br class=""><br class="">for more Biomass Cooking Stoves, News and Information see our web site:<br class="">http://stoves.bioenergylists.org/<br class=""><br class=""></div></blockquote></div><br class=""></body></html>