Updated on January 9, 2024

·

Created on August 27, 2015

Envirofit M-5000

Upcoming Update

Designed by Envirofit, the M-5000 is a lightweight, rocket-type cookstove that boils 1 litre of water in 5 minutes.

Tested By
  • Colorado State University: Engines and Energy Conversion Lab (EECL)
Content Partners
  1. Global Alliance for Clean Cookstoves

Author

Product Description

Envirofit M-5000 is a lightweight (4.2 kgs), portable, wood-burning Rocket-type cookstove designed for rural and peri-urban households composed of up to 8 people. It reduces fuel consumption by up to 66%, cooking time up to 50% and harmful emissions by 82%.

Video available about the M-5000.

Target SDGs

SDG 7: Affordable and Clean Energy

SDG 3: Good Health and Well-Being

Market Suggested Retail Price

$110.00

Target Users (Target Impact Group)

Household

Distributors / Implementing Organizations

Envirofit International works with local distributors in various countries around the world and is looking for further distributors. Amazon also ships directly to certain users.

Manufacturing/Building Method

Mass produced

Intellectural Property Type

Patent

User Provision Model

Users can obtain it directly from the manufacturer through its international distributors or by online purchase on Amazon.  

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)

No

Forced or passive

Passive

Pot type

Flat or round bottom

Pot capacity (L)

Unknown

Thermal efficiency (%)

29.7% – 38.8%

PM emissions (g/MJ delivered to pot)

0.43 g/MJ

CO emissions (g/MJ delivered to pot)

2.26 – 3.30 g/MJ

Time to boil (min/L)

Unknown

Design Specifications

Design specifications include a tired pot support, cast iron drip pan, wooden handles, emissions reduction ring, lightweight heat-reflecting shield, patented heat-resistant alloy chamber, high fire-power chamber design, foot-supported base. With a pot diameter capacity of up to 30 cm, the M-5000 stove weighs 4.2 kgs and its dimensions are (LxWxH) (cm): 32 x 32 x 28.

Product Schematics

Technical Support

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

Replacement Components

None.

Lifecycle

This stove has a 1-year warranty and an expected lifespan of 4 to 7 years.  

Manufacturer Specified Performance Parameters

Improve efficiency three-fold Five-year lifespan Seven minutes to boil 1L of water Reduction of fuel: 66% Cooking time reduction: 50% Toxic emission reduction: 82%

Vetted Performance Status

A summary of the testing results for the M-5000 can be downloaded from the Clean Cooking Catalog.

Safety

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

Envirofit also commercializes the following accessories for the M-5000 model: a round-bottom pot skirt or flat-bottomed pot skirt, the G-3355 double pot attachment and GoGrill premium grill accessory.

Academic Research and References

Lombardi, F., Riva, F., Colombo, E (2018). Dealing with small sets of laboratory test replicates for Improved Cooking Stoves (ICSs): Insights for a robust statistical analysis of resultsBiomass and Bioenergy.  Volume 115, August 2018, Pages 27-34.

Stokes, D (2015). Final Technical Report: Thermoelectric-Enhanced Cookstove Add-on (TECA) for Clean Biomass Cookstoves. OSTI.GOV. U.S. Department of Energy Office of Scientific and Technical Information.

Ehrensperger, A., et al (2017). What future for cooking with solid biomass? The benefits of improved stoves and micro-gasifiers. Bern Open Repository and Information System.

Dischino, K (2015). Methods for particulate matter emissions reduction in wood-burning cookstoves. Colorado State University.

Patents. n.d. Envirofit.

Contact. n.d. Envirofit.

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

Amazon.com: Envirofit M-5000 Rocket Stove. n.d. www.amazon.com.

Envirofit International Presents the Institutional Stove HD. 2014. www.youtube.com.

M-5000. n.d. Envirofit.

Envirofit. n.d. Clean Cooking Alliance.

Global Alliance for Clean Cookstoves. 2015. Clean Cookstoves and Fuels: A Catalog of Carbon Offset Projects and Advisory Service Providers (2nd Edition). Cleancooking.org. Global Alliance for Clean Cookstoves.

 

Compliance with regulations

The independent testers rated this stove on emissions, indoor emissions and efficiency (but it was not tested on safety).

Evaluation methods

All Envirofit products undergo the Envirofit Quality Testing Services (EQTS) to ensure high quality. Envirofit is also a Certified B Corporation. 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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