<div dir="ltr"><div dir="ltr"><div class="gmail_default" style="font-size:small">Hi Rok,</div><div class="gmail_default" style="font-size:small"><br></div><div class="gmail_default" style="font-size:small">Here is a video on using the <a href="https://drive.google.com/file/d/1cHEysp4XfZheuQKXYb9kn9GIeUgwjdzq/view?usp=sharing">cooking hole</a> and a video on making <a href="https://drive.google.com/file/d/1qFTEJjGhFrJ5RrA0_WJYrVSPdE-bNbOn/view?usp=sharing">liner bricks</a> for the cooking hole. The cooking hole is a 25x25x25 cm hole dug in a three-stone cookstove. When fuel is piled in the hole, it burns without tending, uses less fuel and emits less smoke than in unmodified three-stone cookstoves. The following can be used as fuel: crop waste (maize stalks, cassava stems, banana peels, bean stems, etc.) any size wood except very thin twigs, elephant grass, bamboo, cow dung patties, bamboo, sawdust briquettes and more.</div><div class="gmail_default" style="font-size:small"><br></div><div class="gmail_default" style="font-size:small">Please let me know if you would like an introduction to my colleague in Kasese who has extensively tested the cooking hole.</div><div class="gmail_default" style="font-size:small"><br></div><div class="gmail_default" style="font-size:small">Kevin</div><div class="gmail_default" style="font-size:small">Sun24</div></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Tue, Jun 28, 2022 at 1:42 PM Rok Oblak <<a href="mailto:rok.stoves@gmail.com">rok.stoves@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr">Hej Crispin and Richard, great to hear your reactions;<div><br></div><div>I was working with hi density briquettes in Kampala (Nguvu briquettes & coffee), but no hole as well. It also seemed the density was kind of not giving enough air, tho we got it going in the stove. I remember the machine was a huge steam thing :) <a href="https://briquettestoves.com/2009/07/17/nguvu-stove/" target="_blank">https://briquettestoves.com/2009/07/17/nguvu-stove/</a></div><div><br></div><div>Richard, we used the cube mold as it was ready to go; i imagine the round would not be so easy to make and disassemble, maybe a metal barrow cut into 3 pieces. We liked the modern cube format as well :)</div><div><br></div><div>I didn't see Kevin’s square hole in the ground kinda-TLUD, can you show me a photo/link to it?</div><div><br></div><div>I will send you a photo of the big cob stove when its ready, it will take a month to dry probably! I like the fact that with cob you can make a whole kitchen bord/desk, with shelves and all, as its so nice to have a surface for pots right next to your fire</div><div><br></div><div>Cheers!</div><div>Rok</div><div><br></div><div><br></div><div><br></div><div><br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Mon, Jun 27, 2022 at 11:45 PM Richard Stanley <<a href="mailto:rstanley@mind.net" target="_blank">rstanley@mind.net</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="auto">Rok, <div>Good to hear from you! Thanks as ever for your work on finding practical ways to extend the life of ceramic liners . Its an issue which has promised alot of folks as much -in terms of thermal insulation and resulting thermal efficiency as it frustrates-in terms of your mentioned issue of low structural durability. </div><div>Do you find it easier to use a cubic shape for the clay sand exterior? I wonder because , it seems that a simple cylindrical form would be easier to shape and use less material and still be as effective as a thermal ‘ cushion given the cylindrical shape of the rocket stove itself .</div><div><br></div><div>Richard Stanley</div><div><br><br><div dir="ltr">Sent from my iPhone</div><div dir="ltr"><br>On Jun 27, 2022, at 7:46 AM, Rok Oblak <<a href="mailto:rok.stoves@gmail.com" target="_blank">rok.stoves@gmail.com</a>> wrote:<br><br></div><div dir="ltr"><div dir="ltr">Dear stovers,<div><br></div><div>it's been a long time since I've written in the list, but we recently organized a Building with Earth workshop and one detail in the cob table was an integrated cooking stove - a ceramic liner, using biomass briquettes, same type as from Richard Stanley. </div><div><br></div><div>It showed up as a great update to the holey Roket stove <a href="https://briquettestoves.com/" target="_blank">https://briquettestoves.com/</a> as durability is a big issue as ceramic liners tend to crack and break pretty easily due to temperature shocks, but the cob here is making it last for a long time. </div><div><br></div><div>I have mixed local found clay and a lot of fine sawdust in the liner and it doesn't make any smoke, only when you push in a new briquette, there is black fumes for a few seconds, until a new one ignites.</div><div><br></div><div>If you happen to know any projects this principle would be good to integrate, even for other types of wood, I would be happy to share my experiences and possibly collaborate on redesigning existing stoves with this alternative solution. </div><div><br></div><div>Happy and healthy cooking!</div><div>Rok<br clear="all"><div><br></div>-- <br><div dir="ltr"><div><b>Rok Oblak, MAA Design</b><br><br><a href="mailto:rok.stoves@gmail.com" target="_blank">rok.stoves@gmail.com</a><br><a href="http://www.holeyroket.com/" target="_blank">briquettestoves.com</a><br><br>Gregorciceva ulica 5<br>4224 Gorenja vas<br>Slovenia<br></div></div></div></div>
<img id="gmail-m_-481690000350578716gmail-m_-6914601674896782656f_l4wp83jr0" alt="IMG_1230.jpg" src="cid:181aa1170d15108bb4d1"><img id="gmail-m_-481690000350578716gmail-m_-6914601674896782656f_l4wp8bf91" alt="IMG_1191.jpg" src="cid:181aa1170d1266dab472"><img id="gmail-m_-481690000350578716gmail-m_-6914601674896782656f_l4wpaed42" alt="IMG_1161.jpg" src="cid:181aa1170d1214f216a3"><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" target="_blank">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" target="_blank">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/" target="_blank">http://stoves.bioenergylists.org/</a></span><br><span></span><br></div></div></div>_______________________________________________<br>
Stoves mailing list<br>
<br>
to Send a Message to the list, use the email address<br>
<a href="mailto:stoves@lists.bioenergylists.org" target="_blank">stoves@lists.bioenergylists.org</a><br>
<br>
to UNSUBSCRIBE or Change your List Settings use the web page<br>
<a href="http://lists.bioenergylists.org/mailman/listinfo/stoves_lists.bioenergylists.org" rel="noreferrer" target="_blank">http://lists.bioenergylists.org/mailman/listinfo/stoves_lists.bioenergylists.org</a><br>
<br>
for more Biomass Cooking Stoves, News and Information see our web site:<br>
<a href="http://stoves.bioenergylists.org/" rel="noreferrer" target="_blank">http://stoves.bioenergylists.org/</a><br>
<br>
</blockquote></div><br clear="all"><div><br></div>-- <br><div dir="ltr"><div><b>Rok Oblak, MAA Design</b><br><br><a href="mailto:rok.stoves@gmail.com" target="_blank">rok.stoves@gmail.com</a><br><a href="http://www.holeyroket.com/" target="_blank">briquettestoves.com</a><br><br>Gregorciceva ulica 5<br>4224 Gorenja vas<br>Slovenia<br></div></div>
_______________________________________________<br>
Stoves mailing list<br>
<br>
to Send a Message to the list, use the email address<br>
<a href="mailto:stoves@lists.bioenergylists.org" target="_blank">stoves@lists.bioenergylists.org</a><br>
<br>
to UNSUBSCRIBE or Change your List Settings use the web page<br>
<a href="http://lists.bioenergylists.org/mailman/listinfo/stoves_lists.bioenergylists.org" rel="noreferrer" target="_blank">http://lists.bioenergylists.org/mailman/listinfo/stoves_lists.bioenergylists.org</a><br>
<br>
for more Biomass Cooking Stoves, News and Information see our web site:<br>
<a href="http://stoves.bioenergylists.org/" rel="noreferrer" target="_blank">http://stoves.bioenergylists.org/</a><br>
<br>
</blockquote></div>