Updated on January 10, 2024


Created on November 29, 2018

Kuniokoa Stove

Upcoming Update

Kuniokoa Stove is a natural-draft wood-burning rocket stove.  

Developed By
  1. BURN Design Lab
Tested By
  • The Partnership on Women’s Entrepreneurship in Renewables (wPOWER)
  • University of Washington Clean Cookstoves Lab
Content Partners


Product Description

The Kuniokoa Stove is a natural-draft woodstove with a ceramic insulation developed by BURN Design Lab through a partnership with the Mechanical Engineering Department at the University of Washington. The product is distributed and manufactured by BURN Stoves.


Target SDGs

SDG 7: Affordable and Clean Energy

SDG 3: Good Health and Well-Being

Market Suggested Retail Price


Target Users (Target Impact Group)


Distributors / Implementing Organizations

Burn Stoves has an extensive distribution network, having partner distributors like Tuskys supermarkets, Pamoja Life and Livelyhoods across Kenya. It can also be bought online through Amazon, eBay and JUMIA.

Competitive Landscape

Manufacturing/Building Method

The Kuniokoa Stove is manufactured by a locally trained workforce at BURN Stoves´s Kenyan solar-powered factory. The manufacturing site consists of an assembly line and production batches of each part. For wire and sheet metal, pneumatic bending and clamping jigs along with welding and drilling jigs are used. Additionally, a hydraulic press is used for forming, press brakes for bending, spot welders for assembly and laser etching machine to make customized name-plates. A stamping-tooling developed by a company called Hiparter in China is used for the more complex metal-sheet parts to obtain BURN Stoves specifications.

Intellectural Property Type


User Provision Model

Retail shops, middlemen, supermarkets, contracted distributors, partnerships with other product distributors. The main retail spots for shopping for Kuniokoa are supermarkets in Kenya like the Tuskys branches. Users can also obtain the product through the not-for-profit social enterprise LivelyHoods. BURN Stoves has additional chama networks, where the members sell the stoves in their communities for commission through credit options like the chama credit or BURN credit.

Distributions to Date Status

Exact number unknown. However, BURN Stoves has sold more than 400, 000 cookstoves since 2013 between their two main models: Jikokoa and Kuniokoa.

Fuel type

Biomass, wood

Chimney (yes/no)


Forced or passive


Pot type

Flat and round bottom

Pot capacity (L)

7 L

Thermal efficiency (%)


PM emissions (g/MJ delivered to pot)

0.1 g/MJ

CO emissions (g/MJ delivered to pot)

1.9 g/MJ

Time to boil (min/L)

27 min per 5 L

Design Specifications

The Kuniokoa Stove is a natural-draft rocket wood-burning stove and it's design is composed of a radiation shield and solid insulation as well of a high alloy stainless steel feed chamber, combustion chamber and riser. The stove is equipped with primary and secondary airflows to benefit the combustion process. Specifications: Maximum Pot Capacity: 7 L Dimensions (l/w/h): 280/280/320 mm

Product Schematics

Technical Support

47 Nationwide repair stations across Kenya. Full time customer care team.

Replacement Components

Not available.


3 years.

Manufacturer Specified Performance Parameters

Manufacturers specify a high power efficiency of 37%, high efficiency cook top, light weight construction, 31% less fuel used, reduction of emissions by 72% and 55% of savings on firewood as their performance targets.

Vetted Performance Status

The Department of Chemistry Laboratories from the University of Nairobi conducted the approved simulation of the cooking process, the Water Boiling Tests (WBT). The tests showed above average values for the measures of:

  • How efficiently a stove uses fuel to heat water in a cooking pot.
  • Quantity of emissions produced while cooking.
The Partnership on Women’s Entrepreneurship in Renewables (wPOWER), under their “Where are the women in the energy sector” series, developed a case study on a project undertaken by BURN Stoves which explores the gender distribution in their production. wPOWER stated the key findings on BURN Stoves’s good manufacturing and distribution performance as:
  • Policy: Providing a conducive working environment promotes women’s participation in the manufacturing industry.
  • Education: Gender disparity in technical and skilled jobs needs to be addressed in order to advance the employment of women in different areas of manufacturing.
  • Coaching and mentorship is vital in encouraging initiative and confidence in women employees.


The safety concerns associated with the usage of wood-burning cookstoves are primarily related with carbon dioxide, carbon monoxide and sulfur dioxide emissions. Another significant safety concern is domestic accidents such as accidental burning or spill-overs.

Complementary Technical Systems


Academic Research and References

2018. BURN Manufacturing Case Study: Where are the women in the energy sector? Partnership on Women’s Entrepreneurship in Renewables.

2017. Women’s Empowerment Fund Case Study – BURN Manufacturing. Global Alliance for Clean Cookstoves.

2016. Beyond dialogue: Building sustainable and inclusive business models in partnership with social entrepreneurs. University of Oxford.

Be a Distributor. n.d. Burn Stoves.

Pamoja Life Limited. n.d. Clean Cooking Alliance.

LivelyHoods. n.d. Clean Cooking Alliance.

Amazon.com: BURN Kuniokoa Natural Draft Rocket Stove, World’s Most Efficient and Durable, Safe and Easy Lighting, Wood Burning Camping Gear, Picnics, BBQ, Portable Fire Pit, Stainless Steel, Ceramic Insulation : Sports & Outdoors. n.d. www.amazon.com.

About. n.d. Burn Stoves.

benchapman4. 2018. BURN Kuniokoa Wood Stove. Ben Chapman. January 28, 2018.

Qingdao Hiparter Trade Co.,Ltd. Supply Stamping Dies, Progressive Dis, Plastic Moulds, Machining Parts. n.d. www.hiparter.com.

Burn Design Lab. 2024. The Kuniokoa. Burn Design Lab.

Clean Cooking Alliance – Clean Cooking Catalog: Results Report – Kuniokoa. n.d. www.catalag.cleancookstoves.org. Global Alliance for Clean Cookstoves.

Global Alliance for Clean Cookstoves . 2014. The Water Boiling Test (Version 4.2.3): Cookstoves Emissions and Efficiency in a Controlled Laboratory Setting. www.1library.net. Global Alliance for Clean Cookstoves.

International Standards Organization (ISO). n.d. Home. iso.org. ISO.

Global Alliance for Clean Cookstoves. 2013. Interim Reporting Requirements for IWA Tiers of Performance. cleancooking.org. Global Alliance for Clean Cookstoves.

About. n.d. wpowerhub.org.

Compliance with regulations

Complies with the following cookstoves rating for the International Workshop Agreements as a streamlined process of the International Organization for Standardization (ISO):

  • Tier 3 for emissions.
  • Tier 2 indoor emissions.
  • Tier 3 for safety.
  • Tier 2 for efficiency.

Evaluation methods

Water Boiling Test 4.2.3.

Other Information

BURN Stoves also manufactures the well renowned Jikokoa charcoal stove.

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