<div dir="ltr"><div class="gmail_default" style="font-family:tahoma,sans-serif;font-size:small">Ron and everybody;<br><br>First, several of us, apparently mostly David Evitt, tried to arrange a spatial chat for clean burning TLUDs. As far as I can tell it was a dismal failure. I really tried to contribute but, we are on Starlink beta internet access. When it works it's incredibly fast. The problem is in a 40 minute video it will cut out 6 to 7 times or slow down so much that it is not usable. So, I went to town to a Wi-Fi hotspot where we discovered we did not have sufficient bandwidth for spatial chat. I could bring up my own picture and I heard someone say hello norm and that was it. After several attempts, it was clear it was not going to work even at the third Wi-Fi hotspot. As far as I can tell, insufficient bandwidth is going to be a problem for all potential rural attendees for at least a year or two.<br><br>Second, I really like the new way ethos was presented this year. But, what can you expect from such a talented Board of Directors and organizers. This was in my opinion a game changing way to have a meeting. Please keep it up and do it again next year. Of course, face-time is great at a physical meeting, but the new method of presentation is excellent. Like Ron, I really appreciate the power points being available before the actual meeting time.<br><br>Third, it seems to me with the benefits and the new easier inclusion of members and participants with the way ethos was organized this year, physical meetings should be encouraged for subtopics much like the TLUD Summit we had in recent years at Aprovecho. I have personally always found that meetings concentrated on one subject matter like the old stove camps at Aprovecho, are far more beneficial.<br><br>Norm<br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Fri, Jan 29, 2021 at 1:19 PM <<a href="mailto:stoves-request@lists.bioenergylists.org" target="_blank">stoves-request@lists.bioenergylists.org</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">Send Stoves mailing list submissions to<br>
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Today's Topics:<br>
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1. ***SPAM*** Comment on ETHOS 21 (Ronal Larson)<br>
2. Re: A low-cost hood possibility (<a href="mailto:ajheggie@gmail.com" target="_blank">ajheggie@gmail.com</a>)<br>
3. Re: on ETHOS 21 (<a href="mailto:ajheggie@gmail.com" target="_blank">ajheggie@gmail.com</a>)<br>
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<br>
Message: 1<br>
Date: Thu, 28 Jan 2021 23:39:36 -0700<br>
From: Ronal Larson <<a href="mailto:rongretlarson@comcast.net" target="_blank">rongretlarson@comcast.net</a>><br>
To: Discussion of biomass cooking stoves<br>
<<a href="mailto:stoves@lists.bioenergylists.org" target="_blank">stoves@lists.bioenergylists.org</a>><br>
Subject: [Stoves] ***SPAM*** Comment on ETHOS 21<br>
Message-ID: <<a href="mailto:86BC6B1C-25DE-40E6-B2E2-8733ADF6A724@comcast.net" target="_blank">86BC6B1C-25DE-40E6-B2E2-8733ADF6A724@comcast.net</a>><br>
Content-Type: text/plain; charset="utf-8"<br>
<br>
List:<br>
<br>
I?ve been asked a few times why so little messaging these days on this list. I was glad to be able to say that last night I had sent in a message on using a (possibly) cheap quarter barrel as a hood to help on health issues. Anyone else able to expand on any stove topic?<br>
<br>
But this is to report after 4 of 5 days in ETHOS-2021 - that for COVID reasons is being conducted on a combination of ZOOM and a new-to-me program called ?spatial.chat?. For organizers of on-line conferences like this one - this last app is worth investigating. You have to use it to understand what it can do.<br>
<br>
I personally prefer the ETHOS format this year over an in-person meeting. Of course we all miss personal contact, but the formatting has included plenty of time (can be more than one-on-one) for interesting dialogs. Five half days is a lot better for me than 2.5 full days and two half-days lost in travel time. Also able to have many more papers from over-seas.<br>
<br>
<br>
At the ETHOS site, we have been able to read/view Ppts in advance of meetings with the air time with emphasis on questions - this I much prefer: See <a href="http://www.ethoscon.com/ethos-agenda-2/" rel="noreferrer" target="_blank">http://www.ethoscon.com/ethos-agenda-2/</a><br>
<br>
We all (maybe 75-100??) paid $20 - which is a bargain for what can be almost 20 hours (almost half in semi-public group discussion on spatial.chat. I have no idea whether those who have not paid their $20 can see the many agenda PPts, but if so, I strongly recommend doing so.<br>
<br>
From my biochar-prejudiced perspective, the best Ppt was that of Tom Miiles - of course on biochar. Tom gave a new term for biochar I haven?t seen before - and recommend that char-making stove enthusiasts advance it: biochar in soil can be thought of as bio-geo batteries. Many of us have been pushing biochar as a lower cost back-up for wind and solar than batteries -- so I appreciate Tom's word ?storage? here. Unfortunately not much on biochar use from cookstoves (but see next to last paragraph).<br>
<br>
The shortage of TLUD discussions will be fixed tomorrow when Paul Anderson will be speaking (see above agenda for timing details of Paul ?s talk. Also Dean Still tomorrow, with a minute or so on Kirk Harris? latest stove - which Dean calls the best he has seen. Both will be on about noon EST (the full day starts 2 hours earlier).<br>
<br>
I also recommend a talk by Kevin McLean on Monday. Partly because of the big cost savings he described using rock beds - but also because of the way the method is being rapidly accelerating. - with a cost of 2c per new adopter (using church groups), I recommend Kevin?s work also on really low cost TLUDs - not discussed <br>
<br>
By far the best part of the day for me was Julian Winter saying (during discussions - not a paper) that TLUD implementation problems in Bangladesh are already over. There has been such NPP success with farmers using the biochar that their TLUD (a fine one built locally) can?t keep up with demand. In some cases, Julian's Bangladesh TLUD is being used only for making biochar (for soil application) - no cooking.<br>
<br>
I hope others can pipe in with other stove types (glad to again see some nice reports on solar stoves). I?ve not mentioned a lot of good new stove material.<br>
Ron<br>
<br>
<br>
<br>
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Message: 2<br>
Date: Fri, 29 Jan 2021 14:57:30 +0000<br>
From: <a href="mailto:ajheggie@gmail.com" target="_blank">ajheggie@gmail.com</a><br>
To: Discussion of biomass cooking stoves<br>
<<a href="mailto:stoves@lists.bioenergylists.org" target="_blank">stoves@lists.bioenergylists.org</a>><br>
Subject: Re: [Stoves] A low-cost hood possibility<br>
Message-ID:<br>
<CAPSaZebONrBrfCL3dV=<a href="mailto:1ffNCh1si2AEfja-0LuC-T6Bh256KMg@mail.gmail.com" target="_blank">1ffNCh1si2AEfja-0LuC-T6Bh256KMg@mail.gmail.com</a>><br>
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<br>
Ronal<br>
<br>
One would still need to have a pressure difference from the area above the<br>
stove to the outlet from the hood. Much of the temperature gradient from<br>
the fire to the chimney top has been lost in the mixing of flue gases and<br>
ambient air in the cooking area. In the absence of a fan what would<br>
determine what path the gases chose to take, if the hood presented an<br>
obstruction the gases would simply go round and up? In a windy area<br>
something like the cowl used in oast houses might produce enough<br>
depression but that also adds to cost and complication<br>
<br>
On Thu, 28 Jan 2021 at 11:17, Ronal Larson <<a href="mailto:rongretlarson@comcast.net" target="_blank">rongretlarson@comcast.net</a>><br>
wrote:<br>
<br>
> Stove list:<br>
><br>
> I?ve been talking with several list members about one drawback of TLUDs<br>
> being the complexity and cost of adding a chimney. As clean as TLUDs are,<br>
> they would certainly receive more favorable notice if the exhaust could be<br>
> easily vented.<br>
><br>
> A quarter of a converted waste 200 liter (55. gallon) barrel might do it<br>
> cheaply enough. .Can come in different colors - and 4 can be totally made<br>
> locally from one drum - dimensions about 28 x 28 x 82 cm (11 x 11 x 33<br>
> inches).<br>
><br>
> Is using a locally made quarter-barrel a new or old idea? Dimensions<br>
> close enough to ideal? I presume there are dozens of ways to mount and<br>
> allow different amounts of closure for winter and rainy conditions.. or if<br>
> electricity is possible - a fan and light.<br>
><br>
> Height above TLUD could be up to stove owner. This width looks like it<br>
> could handle 3-4 stoves in a row. US hoods seem to be standard at 30<br>
> inches width.<br>
><br>
><br>
> Ron<br>
><br>
><br>
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Message: 3<br>
Date: Fri, 29 Jan 2021 15:06:17 +0000<br>
From: <a href="mailto:ajheggie@gmail.com" target="_blank">ajheggie@gmail.com</a><br>
To: Discussion of biomass cooking stoves<br>
<<a href="mailto:stoves@lists.bioenergylists.org" target="_blank">stoves@lists.bioenergylists.org</a>><br>
Subject: Re: [Stoves] on ETHOS 21<br>
Message-ID:<br>
<<a href="mailto:CAPSaZeZPbpFEg2oh5xfF%2BOF-znHDSbjCj-d9Np5Dd0CoHsXRrw@mail.gmail.com" target="_blank">CAPSaZeZPbpFEg2oh5xfF+OF-znHDSbjCj-d9Np5Dd0CoHsXRrw@mail.gmail.com</a>><br>
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<br>
On Fri, 29 Jan 2021 at 07:47, Ronal Larson <<a href="mailto:rongretlarson@comcast.net" target="_blank">rongretlarson@comcast.net</a>> wrote:<br>
><br>
> List:<br>
><br>
> I?ve been asked a few times why so little messaging these days on this list.<br>
<br>
I cannot explain it but feel the server's bad habit of often<br>
prepending a spamflag not only puts people off but also means the<br>
message is discarded unseen. Unfortunately there is nothing we seem to<br>
be able to do to edit it out.<br>
<br>
>I was glad to be able to say that last night I had sent in a message<br>
on using a (possibly) >cheap quarter barrel as a hood to help on<br>
health issues. Anyone else able to expand on any stove topic?<br>
<br>
We have possibly fallen below the critical mass of regular posters so<br>
posts don't seem to be commented on.<br>
><br>
><br>
> I personally prefer the ETHOS format this year over an in-person meeting. Of course we all miss personal contact, but the formatting has included plenty of time (can be more than one-on-one) for interesting dialogs. Five half days is a lot better for me than 2.5 full days and two half-days lost in travel time. Also able to have many more papers from over-seas.<br>
<br>
This must be good for regular attendees' carbon footprint.<br>
><br>
<br>
> By far the best part of the day for me was Julian Winter saying (during discussions - not a paper) that TLUD implementation problems in Bangladesh are already over. There has been such NPP success with farmers using the biochar that their TLUD (a fine one built locally) can?t keep up with demand. In some cases, Julian's Bangladesh TLUD is being used only for making biochar (for soil application) - no cooking.<br>
<br>
Heartening news<br>
Andrew<br>
<br>
<br>
<br>
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End of Stoves Digest, Vol 125, Issue 17<br>
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</blockquote></div>