100 Liter Institutional Cookstove
100 Liter Institutional Cookstove

InStove’s clean-burning, ultra high-efficiency biomass cook stoves have been serving children and families in clinics, refugee camps, and schools around the world for years. Our stoves operate on tiny amounts of biomass which can include wood or our sustainable biomass briquettes. Two or three kilograms of such fuel is enough to cook a full pot of food. At the heart of these stoves is an advanced-design combustion chamber, built from 310 stainless steel and surrounded by lightweight insulation. At operating temperature, which can reach 1100 degrees Celsius, the stove literally “burns up the smoke.”

IWA tiers of performance
Show subtiers
3
Emissions
4
Efficiency
4
Indoor emissions
3
Safety
Information for consumers
Maximum pot capacity
100 L
Approximate lifetime
not available
People fed per meal
50-700
Pot type accommodated
(Flat bottom/Round bottom)
Other pot type (tapered pot is included)
Countries deployed
Democratic Republic of Congo, Senegal, Uganda, United States, Zambia
Common foods cooked
Beans, rice, curry, porridge, corn, etc.
Manufacturer's warranty available?
Yes
Warranty details
InStove stoves are fully warrantied to be free of defects in materials or construction for a period of one year.
General information
Manufactured in
United States
Suggested retail price
USD 995
Dimensions (l/w/h)
950/670/860 mm
Weight
50.0 kg
Shipping dimensions
1070/690/1010 mm
Shipping weight
63.0 kg
Local assembly possible?
Yes
Materials needed for local assembly
Successful mass production depends on establishing step-by-step operations and using the best possible tooling and custom jigs -- all of which force precision construction. This method of sending all needed material to build thousands of stoves is referred to as 'Stove-Factory-In-A-Box'.
Includes instructions?
No
Other information
At the heart of these stoves is an advanced-design combustion chamber, built from 601 nickel alloy and 310 stainless steel, and surrounded by lightweight insulation.
Characteristics
Chimney, Pot skirt, Sunken pot, Rocket, Institutional, Non-traditional
Fuels
Briquettes, Wood
Materials
Metal
Performance details
IWA emissions  
Metric Min value Max value Number of tests
IWA high power CO 1.3 g/MJ-del 1.3 g/MJ-del 1
IWA high power PM 102.0 mg/MJ-del 102.0 mg/MJ-del 1
IWA low power CO 0.008 g/min/L 0.008 g/min/L 1
IWA low power PM 0.5 mg/min/L 0.5 mg/min/L 1
IWA efficiency  
Metric Min value Max value Number of tests
IWA high power thermal efficiency 46.7 % 46.7 % 1
IWA low power specific consumption 0.009 MJ/min/L 0.009 MJ/min/L 1
IWA indoor emissions  
Metric Min value Max value Number of tests
IWA CO 0.362 g/min 0.362 g/min 1
IWA PM 27.2 mg/min 27.2 mg/min 1
IWA safety  
Metric Min value Max value Number of tests
IWA safety 3.0 3.0 1
Efficiency, energy consumption and fuel use
Metric Min value Max value Number of tests
Cold start thermal efficiency 48.0 % 48.0 % 1
Hot start thermal efficiency 45.0 % 45.0 % 1
Specific energy consumption 6690.0 kJ/task 6690.0 kJ/task 1
Fuel consumed 346.0 g/task 346.0 g/task 1
Output
Metric Min value Max value Number of tests
Cold start firepower 8506.0 W 8506.0 W 1
Hot start firepower 9328.0 W 9328.0 W 1
Simmer firepower 6441.0 W 6441.0 W 1
Safety metrics
Metric Min value Max value Number of tests
Sharp edges and points rating 4.0 4.0 1
Cookstove tipping rating 4.0 4.0 1
Containment of fuel rating 3.0 3.0 1
Obstructions near cooking surface rating 3.0 3.0 1
Surface temperature rating 1.0 1.0 1
Heat transmission to surroundings rating 4.0 4.0 1
Temperature of operational construction rating 4.0 4.0 1
Chimney shielding rating 2.0 2.0 1
Flames surrounding cookpot rating 4.0 4.0 1
Flames or fuel exiting chamber rating 4.0 4.0 1
Total safety score 84.5 points 84.5 points 1