[Stoves] Briquette stove in cob

[Crispin Pemberton-Pigott]

Dear Rok

Great to hear from you.  I really like that fact that the cob stove is sitting on a wooder table!  That is so cool.

I am wondering if there is a briquetting machine making hollow high density briquettes that would burn fast enough to give you decent heat.  I have seen such "logs" made from peanut shells. But they were too small to accomplish the task.  It seems that he shape is right but the size is too small.

I have some 90mm (or 100) diameter sawdust logs bough at vast expense from a hardware store.  But sadly, no central hole.

What did you think of Kevin's square hole in the ground kinda-TLUD?  I am thinking of trying a round one, with a pipe to provide controllable under-air.  If it had a metal ring on top to restrict the outlet diameter, and air underneath, it would have some measure of cooking control for a very low price.  A cob version would be a breeze to make.

Best regards
Crispin



From: Stoves <stoves-bounces at lists.bioenergylists.org> On Behalf Of Rok Oblak
Sent: Monday, June 27, 2022 6:18
To: Discussion of biomass cooking stoves <stoves at lists.bioenergylists.org>
Subject: [Stoves] Briquette stove in cob

Dear stovers,

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.

It showed up as a great update to the holey Roket stove https://briquettestoves.com/<https://nam12.safelinks.protection.outlook.com/?url=https%3A%2F%2Fbriquettestoves.com%2F&data=05%7C01%7C%7C00db0f1daee549e699b708da584c413d%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637919381857760488%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=T%2FfuwWvP14n9K2F3k0TT8mT9l4FjqToOj9yhHI6xelQ%3D&reserved=0> 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.

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.

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.

Happy and healthy cooking!
Rok

--
Rok Oblak, MAA Design

rok.stoves at gmail.com<mailto:rok.stoves at gmail.com>
briquettestoves.com<https://nam12.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.holeyroket.com%2F&data=05%7C01%7C%7C00db0f1daee549e699b708da584c413d%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637919381857760488%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=qOmWd7u6gsxiHaSLPI5nmu6KubWZh0DseykfP4aiH00%3D&reserved=0>

Gregorciceva ulica 5
4224 Gorenja vas
Slovenia
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