Kenyan Domestic Ceramic Jiko Stove

KENGO

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Snapshot
Manufacturing & delivery
Performance & use
Research & standards
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Product description Brand name and product description

Kenyan Domestic Ceramic Jiko Stove (Also called Kimathi Jiko): A lightweight, portable, fuel efficient stove with a ceramic inner lining and metal cladding catered to standard cooking methods in Kenya.

Target region(s) Target region for distribution/implementation (listed by country if specified)

Kenya.

Distributors/implementing organizations Organization(s) distributing/deploying this product directly to communities/individuals?"

NGOs (KENGO, CARE (Kenya), UNICEF, Bellerive Foundation), Various local distributors in Kenya listed here.

Market suggested retail price Price per unit or service price per usage/terms (USD). Subsidies noted.

$2 – $3 USD (55 to 75 Kenyan shillings).

$4 – $10 USD.

Competitive landscape Similar products available on the market. May not be a comprehensive listing.

Almost 200 clean cookstoves. Full list is available via the Clean Cooking Catalog.

Three stone fires and inefficient, traditional stoves.

SDG targeted United Nations Sustainable Development Goals (SDGs) targeted with this product/application/service

Goal #7: Ensure access to affordable, reliable, sustainable and modern energy for all

Target user(s) Target user/consumer base (country, income segment)

Rural and urban low-income families in Kenya.

Manufacturing/building method(s) Detail regarding solution production or construction method (instructions, mass production capacity, custom made,etc...)

Large-scale promotion, production, sales, and repair network.

Product Intellectual Property Open source/IP protected (note patent)/trade secret/other?

Trade Secret.

User Provision Model Where can the product be purchased/acquired by end users?

Through Kenya Energy and Environment Organisations in Nairobi, Kenya, or varous local distributors, listed here.

Distribution to date Number of units that have been deployed, downloads or users to date

There were over 700,000 KCJ’s in use in Kenya; the stoves are found in over 50% of all urban homes, and roughly 16% of rural homes. The current distribution to date is unknown. Production volume is 20,000/month, so most likely very large.

Fields marked are sourced values that have been evaluated by the manufacturer or a third party, all others are design specifications.

Cold start firepower (W)

3048-3859

Cold start thermal efficiency (%)

23.2-24.4

Fuel consumed (g/task)

65.0-72.0

Fuel types

Wood, charcoal

Hot start firepower (W)

3495-3595

Hot start thermal efficiency (%)

33.9-41.4

IWA efficiency: IWA high power thermal efficiency (%)

29.2-32.3

IWA emissions: IWA high power CO (g/MJ-del)

30-41.35

IWA high power PM (mg/MJ-del)

298.5-647.5

IWA indoor emissions: IWA CO (g/min)

Unknown

IWA low power CO (g/min/L)

0.08-0.12

IWA low power specific consumption (MJ/min/L)

0.01

Mean time to boil (mins)

27-39.7

Pot type accommodated (Flat bottom/Round bottom)

Round bottom (based on images)

Design specifications Component and Operation overview including power, portability, facility requirements, preventative maintenance and user training requirements

Dimensions: Diameter varies from 30 to 50 cm. Weight (kg): 3 – 6 kg

Product schematics Design and assembly illustrations

The Kenya Ceramic Jiko (KCJ) stove is a portable improved charcoal burning stove consisting of an hour-glass shaped metal cladding with an interior ceramic liner that is perforated to permit the ash to fall to the collection box at the base. A thin layer of vermiculite or cement is placed between the cladding and the liner. A single pot is placed on the rests at the top of the stove.

Technical support Technical support provided by

Training courses are available for stove manufacturers, vendors, and end-users through various NGOs (not specified).

Replacement components Availability of replacement components (in-country, by order,...)

Unknown.

Lifecycle Disposal and warranty

30 months expected lifecycle. No warranty.

Manufacturer specified performance targets Designer / Manufacturer specified targets

The manufacturer (KENGO) has not listed any specific targets of the product.

Vetted performance Findings of manufacturer evaluations or independent testing centers

Testing results for the stove are summarized and can be downloaded from the Clean Cooking Catalog.

Testing organizations Independent lab, academic research centers, etc.

Aprovecho Research Center, U.S. EPA, University of California, Irvine, University of Nairobi.

Safety Potential hazards / risks related to operation of this product

Unknown.

Complementary technical systems Performance of this product is improved with another technology (eg. Cookstoves and Wind-blocking skirts)

Unknown.

Academic research Academic research related to the product (e.g. published papers in peer-reviewed journals)

Kammen, D.M., Research, Development and Commercialization of the Kenya Ceramic Jiko and Other Improved Biomass Stoves in Africa [Internet]. Berkeley (CA): University of California; 2011 [cited 2015 Jun 15].

Hyman E.L., The Experience with Improved Charcoal and Wood Stoves for Households and Institutions in Kenya [Internet]. 1985 Dec 19 [cited 2015 Jun 16].

About 1,000 additional aritcles on cookstoves in Kenya.

Compliance with regulations Product certifications and standards referenced by designer/manufacturer

Unknown.

Evaluation methods Evaluation methods/protocols/guidelines referenced by designer or manufacturer.

Extensive evaluation methods of U.S. EPA, University of California, Irvine, Aprovecho Research Center, and University of Nairobi are available on the Clean Cooking Catalog.

Other information

Research, Development and Commercialization of the Kenya Ceramic Jiko and other Improved Biomass Stoves in Africa, Daniel M. Kammen, Ph.D.

The institutional ceramic jiko can be used in hospitals, schools, prisons, and any institutions that use fuelwood or charcoal for cooking.

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Kenyan Domestic Ceramic Jiko Stove

KENGO

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