Dura is a lightweight, durable and rocket-type cookstove designed for cooking with a single pot and wood or solid biomass as fuel. Within a long-lasting refractory metal combustion chamber, it has a strong cast iron top, ceramic insulation and steel handles with silicone grips for easy movement and transportation.
Intellectural Property Type
User Provision Model
Distributions to Date Status
The exact number of Dura stoves distribution to date is unknown, however, EcoZoom has a production volume capacity of 60,000 stoves/month (considering all commercialized models) that can be scaled to fit any project.
Forced or passive
Flat or round bottom
Pot capacity (L)
Thermal efficiency (%)
PM emissions (g/MJ delivered to pot)
CO emissions (g/MJ delivered to pot)
Time to boil (min/L)
28 min per 5 L
Design specifications include a refractory-metal combustion chamber, lightweight and ceramic-abrasion resistant insulation, body painted sheet metal with a reinforced door frame, bottom tile kiln-fired with metal lining and stainless-steel handles with silicone. Dura stove weighs 8 kgs and its dimensions are (LxWxH) 24 x 24 x 33 cm. Further details here.
This stove has 1-year warranty including defects in materials and workmanship. Dura stove has a 5-year estimated lifecycle.
Manufacturer Specified Performance Parameters
The EcoZoom Dura rocket stove was designed to burn wood and other solid biomass fuel with a durable and lightweight product that can also be used for camping and off-grid cooking.
Vetted Performance Status
With a skirt, Dura stove has a thermal efficiency of 38%, an average fuel savings of 53% and emissions savings of 72%. When tested without a skirt, it proves a thermal efficiency of 27%, an average fuel savings of 43% and emissions savings of up to 55%. The complete vetted performance here. Results from DelAgua's testing in Rwanda show that follow-up surveys conducted by local Community Health Workers 1 month, 3 months and 6 months after stove placement show that 95% of recipients now use EcoZoom as their primary cooking method.
Designed for outdoor use only. 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
Use of the product with a pot skirt significantly increases the efficiency and overall performance of the cookstove.
Academic Research and References
Jetter, J.J., Kariher, P (2009). Solid-fuel household cookstoves: characterization of performance and emissions. Biomass and bioenergy. 2009;33:2294-305
Jetter, J., et al (2012). Pollutant emissions and energy efficiency under controlled conditions for household biomass cookstoves and implications for metrics useful in setting international test standards. Environ. Sci. Technol. 2012;46(19):10827-10834.
Anenberg, S.C., et al (2013). Cleaner cooking solutions to achieve health, climate, and economic co-benefits. Environ. Sci. Technol. 2013;47(9):3944-3952.
Compliance with regulations