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

This is an experiment using biomass in the KEROSENE WICK STOVE. (for more photographs) The stove was lit at the top using a little amount of biomass soaked in kerosene. The fine holes of 1 to 2 mm located all along the inner and outer frame are useful in achieving very good bluish flames. The flames continued for 30 to 45 minutes duration. Only at the end the performance was bad, the option was that, a lid was used to shut down safely. The fire was very high (Reasons I am not sure). If one does not have enough kerosene, and in emergency one can use the kerosene stoves too with fine wood shavings as fuel. The end product is very good biochar. I am thankful to TOM REED for explaining the functioning of a Kerosene stove, which was the motivation for doing this experiment.
Also see

This is the prototype of Magh series "Magh Utham Woodgas Burner". This is a natural draft burner (forced air is optional). Low cost, low weight, easy of operation, easy to collect the biochar by rotating the combustion frame and easy to reload it. As it is can be used for boilers / institutional stoves / domestic cooking / etc. The performance is good. There could be some more improvements in its design to increase its performance. For details and photographs see the link . The term "Utham" refers to "Best" which is part of the name of Prof. K. Purushotham Reddy a very well known environmentalist in India.

Anila Biomass Gasifier Stove Designed and built by Professor U.N. Ravikumar (Eng) Mysore University, India In Biochar and SCAD presented by David Friese-Greene, The Schumacher Institute, Bristol (9.88MB pdf)

Anila Stove Anila Stove
Combustion Cycle Combustion Cycle
Cutaway Diagram of the Anila Stove Cutaway Diagram of the Anila Stove

Magh CM-II natural draft woodgas stove, it is a very low-cost stove for heating and generating charcoal. It can also be described as a mini-charcoal making metal kiln. Instead of incinerating biomass generated from home gardens / any other dry combustible material generated as household waste usually throw into the garbage bins, can be used here. The leaf litter, dry twigs / sticks, chips of wood, wood shavings, etc., are very much suitable.

Envirofit and BP Stoves
Tom Reed,, August 29, 2008
Envirofit and BP StovesEnvirofit and BP Stoves

On Fri, Aug 29, 2008 at 6:38 AM, Thomas Reed wrote:
Dear Stovers:

I am attaching [the image above]that may be of interest to the stovers.

Here is an unsolicited commentary on our new XL WoodGas Stove, available at
Woodgas stoveWoodgas stove
along with our gasification books.

We have recently learned that BP is manufacturing a VERY similar stove
and selling them (only in India) in their equivalent of Walmart. I hear
they have already sold 100,000. Sounds like we are well on the way to
getting a "Billion Improved Stoves" out to the developing world.

If you cover the combustion air holes with aluminum flashing or sheet
metal screws the stove also makes a good gasifier.



Servals Hybrid Pressure Stove
and Venus Energy Efficient Stoves
Rajan Philip, Servals Automation Pvt. Ltd., Chennai, India, July 2008 (Rev August 21, 2008)
Hybrid StoveServals Hybrid Stove
Servals Hybrid Stove 2Servals Hybrid Stove

Please visit for more details.

P. Mukundan (098403 56578)
Managing Director
Servals Automation Pvt. Ltd.,
5/1 Balaji Nagar, 1st Street,
Eekatuthangal, Chennai - 600 032.
Tamil Nadu, India
Ph: 044 - 64577181 / 182
Fax: 044 - 45540339
Email: /
Please visit for more details.

Posted July 26, 2008
"Probably you could try the Hybrid Pressure Stove developed by Servals Automation at Chennai, India. This stove uses 30 % vegetable oil and 70 % kerosene - kept in separate tanks. The stove is designed to use Straight Vegetable Oil ( ie. no processing involved ). The stove was developed under my guidance. Rajan Philip

Organisation Profile :

Servals Automation Pvt. Ltd. is a part of Servals Group of four decades experience.

Servals Specialize in manufacturing socially relevant products motivated by Rural Innovation Network –a NGO specializing in incubating and networking rural innovators.

Servals manufacture RAIN GUN –a mega sprinkler used for water management in irrigation and dust abatement and Energy Efficient Kerosene Stove\ Burners.

Servals are assisted by AAVISHKAAR INDIA Micro –Venture Capital fund have their Manufacturing base at Chennai India .

Venus Energy Efficient Stoves manufactured by SERVALS won an International Award in a competition held by Paraffin Safety Association in South Africa .

Venus Burners because of their special features are now used by many Original Equipment manufacturers in India .

Prakti Design Lab, Pondicherry, India
Mouhsine Serrar, Director, July 2008
Prakti Design LabPrakti Design Lab

BP Pellet Stove in India
Roger Samson, July 2008

A Small Stove With Big Ambitions
A $17 stove could reduce carbon emissions and improve women’s health in India, Margot Cohen, YaleGlobal, 7 April 2008

This is great 4 minute video

"FACTORS INFLUENCING COMMUNITY ADOPTION OF GOOD STOVES" is a paper written based on my experience and referring to literature.


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