Charcoal in the ARC stoves in Majuro
Michael Trevor, Marshall Island, December 13, 2008

Charcoal From ARCCharcoal From ARC
Fuel and CharFuel and Char
Prepping Flower Shoots Covers UtakPrepping Flower Shoot Covers Utak

It was asked if the ARC's stoves here in the Marshall make charcoal Absolutely

I went back and looked after we had to use the stove because the propane ran out, here in town. you answer pulpy punky material or not yes the stove does produce charcoal.

The charcoal in the pictures is charred copra used to light the stove and the pieces of the flower shoot that even show the grain and structure of the original pieces.

The flower shoot cover Spathe or Utak is an often used fuel anyway. Ripped by hand into small strips it works particularly well in the ARC rocket stoves. Copra, dried coconut meat, is the major cash crop and source of income for most. Its use would be limited to only a few chips as a starter material.

I find a spritz of kerosene from a old 409 bottle or even a squirt of WD-40 does fine as a starter too. Various pieces of fronds and leaflets are really bio trash stuff and if they can be use effectively a really handy application.

As for char structure, after it goes through my blender I am not at all sure there is much left.
Remember I have been using Charcoal slurppees for a while. Charcoal, fish scraps if there are and a touch of 20/20/20 and a pinch of sugar.

So better cooking and may your terra preta plot grow too.

Michael N Trevor
Marshall Islands

"Cocos nucifera"

Cooking With The Aprovecho Rocket Stove in the Marshall Islands
Michael Trevor, Marshall Islands, December 11, 2008

Frying with a little copra and udakFrying with a little copra and udak

For some of you this may be old hat but for others maybe new bits of information

How to Make a Tin Can Rocket Stove
Larry Winiarski, Aprovecho Research Center, September 2008

How to Make a 16 Brick Rocket Stove
Larry Winiarski, Rotary International, Santiago Tlautla, Mexico, July 2008

Dr. Larry Winiarski makes a clean burning rocket stove using 16 adobe bricks at the Rotary International-sponsored Integrated Cooking Workshop in Tlautla, Mexico

Wood-Charcoal: Two Door Rocket Stove
Dean Still, Stoversource, May 2008

Dean Still shows the new two-door rocket stove designed by Aprovecho Research Center and being made in China.


Stoversource: One Door Rocket Stove

Dean Still, Stoversource, May 2008

Dean Still shows off the new one door rocket stove designed by Aprovecho Research Center and being made in China.


Assessing Cook Stove Performance: Field and Lab Studies of Three Rocket Stoves Comparing the Open Fire and Traditional Stoves in Tamil Nadu, India on Measures of Time to Cook, Fuel Use, Total Emissions, and Indoor Air Pollution
Nordica MacCarty, Dean Still, Damon Ogle, Thomas Drouin, Aprovecho Research Center, January 2008

Testing Results of the Ecocina Cooking Stove from El Salvador
Nordica MacCarty, Aprovecho Research Center, March 5, 2008
Nancy Hughes, Stove Team International, April 5, 2008
La Disminuicion de las Emanaciones de HumoLa Disminuicion de las Emanaciones de Humo

AIDG Rocket Box
Catherine Laine, Appropriate Infrastructure Development Group, January 22, 2008
AIDG Rocket BoxAIDG Rocket Box

Making Rocket Stoves in China
Dean Still, Aprovecho Research Center, March 28, 2008

Hi Stovers!

A lot of the folks on the List saw the Rocket stoves that we are making in China at ETHOS. John Page and I just spent ten days at the factory near Shanghai. Here’s a quick update on the China project.

The big news is that the lightweight, refractory ceramic combustion chambers are now being extruded at the rate of about one thousand per day. You can imagine that John and Dean were grinning ear to ear, watching the materials being mixed three times in the big grinders. When thoroughly mixed, the clay is extruded into the combustion chamber shape, pushed by a 100HP motor, and every twenty seconds or so, another combustion chamber is ready for drying. (There are photos of all this.) Drying takes about 30 days and then firing takes place in the huge coal fired kiln, as big as a supermarket. I think that we can fire about 20,000 combustion chambers at one go. The kiln is being fired and emptied simultaneously. The clay deposit is located one kilometer from the kiln.

The cast iron stove top was adjusted; raising the pot supports two millimeters, after further emission testing in the lab showed a reduction in CO and PM with a little higher clearance.

We have the first order for a container of stoves, which is going to India. The factory has arranged for a good set up price (about $600) for the packaging. The six sided box can be printed in the local language with desired designs and logos.

We are investigating shipping costs to and duties for all countries. There are different duties for whole stoves and for stove parts. We’re going to write up our experience and send it around to everyone, bit by bit, trying to share what we learn from this project.

You can contact me for the stove catalog, questions, etc…

All Best,

Aprovecho Research Center
541-767-0287 Oregon, USA

New Factory Under ConstructionNew Factory Under Construction


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