Updated on January 9, 2024


Created on June 18, 2014

Envirofit G-3300

Upcoming Update

Designed by Envirofit, the M-3300 is a lightweight, rocket-type cookstove for cooking with wood.

Tested By
  • Berkeley Air Monitoring Group
  • Colorado State University: Engines and Energy Conversion Lab (EECL)
  • Columbia University
  • U.S. Environmental Protection Agency
Content Partners


Product Description

Envirofit M-3300 is a lightweight (3.5 kgs), portable, single-pot, wood-burning rocket-type cookstove. It reduces fuel consumption by up to 60% and harmful emissions by 80%.

Envirofit has regional headquarters in East Africa, West Africa, Asia, and Latin America that offer the local production and distribution of clean cookstoves.

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

Evans Outdoor Store (U.S. domestic distribution company) Interview with representative

Manufacturing/Building Method

Mass produced in China but, for 2018 and according to the Global Alliance for Clean Cookstove, its no longer manufactured.

Intellectural Property Type


User Provision Model

Only available for purchase in U.S. through evansoutdoorstore.com (No longer available on Envirofit website) Interview with representative

Distributions to Date Status

The exact distribution number of the Envirofit M-5000 is unknown, however, and for 2018, Envirofit has sold more than 1 million stoves across 45 countries.  

Fuel type

Biomass, wood

Chimney (yes/no)


Forced or passive


Pot type

Flat or round bottom

Pot capacity (L)


Thermal efficiency (%)

36.2% – 38.0%

PM emissions (g/MJ delivered to pot)

0.25 – 0.50 g/MJ

CO emissions (g/MJ delivered to pot)

3.10 – 5.09 g/MJ

Time to boil (min/L)

18 – 32 min per 5 L

Design Specifications

Design specifications include the stove body, a single-pot combustion chamber at the bottom and two handles. Envirofit’s designs were developed using advanced computational fluid dynamics and robust emissions and durability testing to optimize the stove geometry and materials. It is portable as it weighs 3.5 kgs and its dimensions are (height x width x depth): 28.8 x 26.1 x 27.5 cm.

Product Schematics

Technical Support

Instruction video available and Envirofit offers contact information for its customers in various regions.

Replacement Components



Lifecycle is unknown.  

Manufacturer Specified Performance Parameters

Manufacturer's performance targets: • 3 times more efficient than an open fire. • 80% reduction in harmful emissions: carbon dioxide reduction by 60% and carbon monoxide by 65% and particulate matter reduction by 45%. • 60% reduction in wood, biomass, and charcoal use.

Vetted Performance Status

Testing results for the G-3300 are summarized and can be downloaded from the Clean Cooking Catalog.


Guidelines provided by Envirofit must be followed when manipulating the stove to avoid burns and spill-overs. Furthermore, keep all flammable items away from the surrounding area of the stove, and do not enclose the area you are cooking within; proper ventilation is always required. Do not touch the body of the stove while in use.

Complementary Technical Systems

Using a pot skirt will increase the efficiency of the cookstove. A G3300 pot skirt is available on Evans Outdoor Store's website.

Academic Research and References

Adkins, E., et al (2010). Field testing and survey evaluation of household biomass cookstoves in rural sub-Saharan Africa. Energy for Sustainable Development. 2010;14 (3): 172–85.

Clean Cooking Alliance – Clean Cooking Catalog: Results Report – Envirofit G-3300. n.d. www.catalag.cleancookstoves.org. Global Alliance for Clean Cookstoves.

Patents. n.d. Envirofit.

CSR Programs | off Grid Appliances | Clean Cooking Stoves. n.d. Envirofit.

Envirofit’s Original Rocket Stove Design. n.d. Evan’s Outdoor Store.

Contact. n.d. Envirofit.

Envirofit G-3300 Cookstove Training Video. 2009. www.youtube.com.

Envirofit. n.d. Clean Cooking Alliance.

Media. n.d. Envirofit.



Compliance with regulations

All of the Envirofit cookstove products meet the Global Alliance Tier 2 level standard or higher. Envirofit is also a Certified B Corporation.

Evaluation methods

All Envirofit products undergo the Envirofit Quality Testing Services (EQTS) to ensure high quality. Envirofit’s designs were developed using advanced computational fluid dynamics and robust emissions and durability testing to optimize the stove geometry and materials.

Other Information

Envirofit has won several awards: • 2013 Energy and The Environment Innovators of the Year Award by the Economist • 2013 Spark Award Envirofit Institutional Cookstove Gold Award • 2011 Special Achievement Award: Partnership for Clean Indoor Air Other various awards, available here. 

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