Graminheet Natural Draft Biomass Cook Stove
Graminheet Natural Draft Biomass Cook Stove

The Graminheet Natural Draft Biomass Stove (model KEP31NP) is a metallic, single pot, household-size stove.

IWA tiers of performance
Show subtiers
unrated
Emissions
unrated
Efficiency
unrated
Indoor emissions
unrated
Safety
Information for consumers
Maximum pot capacity
22 L
Approximate lifetime
7 years
People fed per meal
5-8
Pot type accommodated
(Flat bottom/Round bottom)
Round bottom
Countries deployed
Bangladesh, India, Nepal
Common foods cooked
not available
Manufacturer's warranty available?
Yes
Warranty details
Any Manufacturing defect 1 year warranty
General information
Manufactured in
India
Suggested retail price
USD 13-17
Availability
On the market
Dimensions (l/w/h)
267/267/257 mm
Weight
9.5 kg
Shipping dimensions
310/310/310 mm
Shipping weight
9.8 kg
Local assembly possible?
Yes
Materials needed for local assembly
Simple hand tools
Includes instructions?
Yes
Instruction details
Includes step-by-step usage instructions
Other information
Due to use of ceramic materials, it works longer than an ordinary wood stove and its four legs were designed to provide greater balance while cooking than previous models. Bakelite handles are attached for easy movement from one place to another even when it is working.
Characteristics
Household, Portable, Side-feed, Heating, Rocket, Ceramic-lined, Non-traditional
Fuels
Dung, Wood, Other
Materials
Ceramic, Metal
Performance details
IWA emissions  
Metric Min value Max value Number of tests
IWA high power CO 5.4 g/MJ-del 5.4 g/MJ-del 1
IWA high power PM 510.18 mg/MJ-del 510.18 mg/MJ-del 1
IWA low power CO 0.06 g/min/L 0.06 g/min/L 1
IWA low power PM 7.07 mg/min/L 7.07 mg/min/L 1
IWA efficiency  
Metric Min value Max value Number of tests
IWA high power thermal efficiency 25.39 % 25.39 % 1
IWA low power specific consumption 0.049 MJ/min/L 0.049 MJ/min/L 1
IWA indoor emissions  
Metric Min value Max value Number of tests
IWA CO 0.39 g/min 0.39 g/min 1
IWA PM 40.37 mg/min 40.37 mg/min 1
Safety metrics
Metric Min value Max value Number of tests
Total safety score 81.5 points 81.5 points 1