Entries by Kim Still

International Support for Cook Stoves and Climate!

WASHINGTON, DC, April 22, 2021 — At the Leaders Summit on Climate hosted by President Biden, the U.S. government pledged to help countries achieve their climate ambitions through expanding access to clean cooking. “Providing clean energy to households is critical to achieving global climate and sustainable development goals,” said Helena Molin Valdés, Head of the Climate and Clean Air […]

How Do We Know?

When I went to UC Berkeley, studying psychology as an undergrad, lots of people made fun of Freud, Jung, and Adler who wrote (a lot) about divergent theories of what makes people tick. UCB liked to think of itself as a scientific institution, and facts are proven by statistical validity. Why should we believe speculation from the dear departed? I eventually agreed and I was […]

Detailed Observations At Work

Last week we shared some thoughts about the importance of gathering detailed data and making direct observations when testing stoves. Here’s a question we recently considered. Did a partial cover over the sticks entering the combustion chamber help reduce emissions in the CQC stove with Jet-Flame? No, not in this preliminary test series, although lots […]

Detailed Observations with the LEMS Emissions Hood

Having an emissions hood allows ARC to make more detailed observations. We try to do one ISO 19867 test every day, establishing an in-house culture of data driven inquiry. Now, having a hood isn’t necessary for creating amazing stoves. Larry Winiarski, Tom Reed, Paul Anderson, Kirk Harris, and many other people have spent happy hours […]

More Good News from C-Quest Capital (CQC)

C-Quest Capital recently announced a collaboration with Macquarie Group Ltd., a financial services company with A$550 billion in assets under management and 16,000 employees in 35 countries. The two firms will fund and deploy efficient cook stoves with pot skirts to one million rural households across Malawi, Zambia and Tanzania. CQC’s preferred rural stoves project standard […]

Cooling Fins on a Downdraft Rocket Stove

We used to have problems with the upper portion of the sticks catching fire in Dr. Winiarski’s down-feed downdraft Rocket stoves. The draft had to be strong, and the sticks at the right moisture content and size/weight to burn up completely without any smoke back drafting up into the room. The vertical metal feed tube […]