Easy Oven Retained Heat Cooker
Easy Oven Retained Heat Cooker w/ Rocketworks Stove

Jo Kennard in Australia has developed a retained heat cooker the Easy Oven, and has developed an excellent table of recommended cooking times and recipes to go with it.

Inspired by traditional Haybox cookers, and made from modern materials, the EasyOven saves between 86% - 90% of energy used while cooking meals, keeps food hot (or cold) for up to 3 hours. It was field tested during the Christchurch earthquakes and the Brisbane floods, and it is at home both in rural kitchens and in suburban potlucks. For More information see http://www.easyoven.com.au

Potential Energy http://www.potentialenergy.org/ stoves are the stoves original designed in the Berkley labs for Sudan (the Darfur region). They are an energy efficient stove designed with the cook's needs in mind.

They have recently added an orange 'cool mesh' to the outside of their metal stove to help protect the stove user (and their children) from burns. The second photo is of a stove field test, where ladies in Africa can see for themselves the advantages and disadvantages of several designs.

The Berkley stove is created out of metal and then shipped to local artisans who assemble the stove in the field. This video shows part of the process.

The "Easy 5 Gallon Bucket Rocket Stove", is very easy to build. All materials anyone needs to cook a good hot meal is a metal 5 gallon bucket, some stove pipe and vermiculite, pearlite or similar insulation (even "wood ash" can be used). Since the insulation separates the heat from the housing, almost ALL of the flame and heat is directed up to the cooking pot or utensil. Almost NO heat is wasted, making it one of the most efficient rocket stoves I've seen. Definitely one one the EASIEST to build and transport!

Ron Ray

From Stuart Conway and Rogerio Miranda

Hola companeros,

Mandanadose un reporte algo grande, pero de interes sobre el trabajo que hice Rogerio y Winrock introduciendo una estufa tipo Justa pero modificado para Peru, la Inkawasi



Desarrollando la estufa Túumben  K´óoben, una estufa adecuada a las condiciones culturales y ambientales de la Peninsula De Yucatan

Hello stoves community,

At ETHOS 2009 we held a panel on stove safety, bringing in viewpoints from corporate standards development, national standards certification, and small to medium scale developers. The team led by Nathan Johnson (Iowa State University) included Crispin Pemberton-Pigott (New Dawn Engineering), Casper Thijssen (Philips), and Karabi Dutta.

The panel gave a comparative analysis of how different stove industries (multinational corporations, medium-scale companies, NGOs, small developers, etc.) addressed fundamental stove safety questions. These topics included:

a) applicability of standards and regulation;
b) incentives and benefits
c) facilities and equipment availability
d) cost vs. benefit
e) resulting action

We determined that each type of industry has a different perspective that influences their path or actions towards a safer stove. And that all sub-industries may not produce safer stoves given the same incentive mechanisms or policies. As such more than one path to safety may be needed to reach the greatest amount of end-users (and producers). The panel ended the discussion with an overview present work in stove safety with recommendations for next steps.

Please view the attached file for more details. I will be leading a group in 2009 to work on the following: assemble database of injury data, b) analyze incentive mechanisms, cost/ benefit, c) development of lab testing procedures for different stove categories, d) publication of findings/ results, and e) look for partnerships with international agencies to support safer stove design and production.

Please contact me if you have any questions. There will be more updates to follow. Best,
Nathan Johnson
PhD Candidate, Mechanical Engineering, International Development
Iowa State University


I wish to promote some of your product especially the stove and its boi fuel in my country as part of my contributions to the charity home. how do i go about this? My name is Dada Ayobami, a Nigerian, Manager of Alugoke nig limited(hydro-works)

Illustrations: Think Cooking Safety

Don O'neal, Helps International
Intercambio Mesoamericano Antigua. Guatemala August 16-18, 2001

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