Institutional Barrel Stoves in Northern Uganda: Theory vs. Reality
Damon Ogle, Aprovecho Research Center, February-March 2007
FredaFredaPerforms Controlled Cooking Tests

Fish Smoker
Andrew Parker, UN Online Volunteering Service, Cameroon April 17, 2007

I am looking for some help in adapting Dr. Winiarski's wood-fired food dehydrator for fish smoking.

I am looking for some help in adapting Dr. Winiarski's wood-fired food dehydrator for fish smoking.

Laboratory Testing of Rocket Stoves of Various Capacities As Compared to the Three Stone Fire
Dean Still, Nordica MacCarty, Aprovecho Research Center, April 2007

In an effort to understand the relationship between stove capacity and fuel use and emissions the performance of three sizes of rocket stoves were compared.


The stoves were tested with the 2003 UCB revised Water Boiling Test. Pots that were integral to the stoves were used without a lid. Kiln dried Douglas fir at approximately 10% moisture content was burned in all tests. Only one test was performed on the household stoves. Therefore, results are not statistically valid but should be useful for general comparison. The [attached] graphs show results from three Rocket type stoves as compared to a carefully tended Three Stone Fire.

HUAMANZAÑA, PERU: Phase II Assessment and Plan for Future Projects
Shannon M. Brink, EWB–PRINCETON UNIVERSITY, Princeton, NJ March 2007
Trip: 27 December 2006 –10 January 2007
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I am member of a student chapter of Engineers Without Borders. We have built two Inkawasi stoves with somewhat disappointing results. (We are still not achieving complete combustion, the sunken pot chambers are problematic for accommodating a variety of cooking utensils, and the smoke escapes from the gap around the pot skirts.) The engineers on the team are discouraged and have given up on the rocket elbow stove design. Though I'm not an engineer, I am skeptical that the stoves were built according to specifications (one was tiny, the other huge); outside engineers who have experience with similar stoves have suggested that our combustion chamber (which was short‹only a little more than 12") was too short.

As seen at ETHOS 2007, we have put together a step be step video on how to build Damon Ogle's design of an Institutional Barrel Stove. The stove is constructed from 200L barrels.

The stove was able to bring 45L of water to boil in 37 minutes using only 2150g of wood.

In a Controlled Cooking Test the Institutional Barrel Stove used 73% less fuel than an open fire!!

The video is available in multiple part downloads here on our website

The video is also available on DVD for $10 + Shipping.

Rocket Stove Questions and Answers: Rocket Stove Air Supply - Primary and Secondary Air
Hugh Burnham-Slipper (UK) and Kevin Chisholm (CAN), Dean Still (Aprovecho), AD Karve (ARTI, India) November 25-26, 2006

Rocket DesignRocket Design (Aprovecho)

Select to Enlarge

Dear Stovers,
The fuel magazine that sticks out the side of a rocket stove is divided into two: above the shelf is where the fuel goes, and air passes under the shelf. Am I right in thinking that the fuel should be packed in as much as possible, to try and minimise the amount of air entering the stove through the fuel inlet? If so, why? My experience is that char builds up at the bottom of the elbow, so air is needed to burn the char (which in turn pyrolises the fuel), and a second air supply is required to burn the volatile gases. Any pointers would be warmly received.
Confused, Hugh.


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