Prime Square Granular Regular
Prime Square Granular Regular
Manufacturer

PRODUCT FEATURES: Prime cookstoves can be fueled by a variety of biomass TECHNICAL PRINCIPLES: Top-lit updraft (TLUD) biomass stove that uses preheating, counter-flow and co-firing burning mechanism FUELS: Pellets, agro-waste such as palm kernel shells, rubber shells, coconut husk, wood chips. COUNTRY OF ORIGIN: Indonesia

IWA tiers of performance
Show subtiers
2
Emissions
2
Efficiency
1
Indoor emissions
unrated
Safety
Information for consumers
Maximum pot capacity
50 L
Approximate lifetime
5 years
People fed per meal
4-6
Pot type accommodated
(Flat bottom/Round bottom)
Both
Countries deployed
Bangladesh, Cambodia, Cameroon, Côte d'Ivoire, Ghana, Indonesia, Russian Federation, Nigeria, Norway, South Africa, Zambia
Common foods cooked
Wok, stew, fried foods
Manufacturer's warranty available?
Yes
Warranty details
1 year warranty
General information
Manufactured in
Indonesia
Suggested retail price
USD 25-45
Dimensions (l/w/h)
280/280/360 mm
Weight
3.5 kg
Shipping dimensions
300/300/380 mm
Shipping weight
3.9 kg
Local assembly possible?
No
Includes instructions?
No
Other information
not available
Characteristics
Non-traditional, Portable, Gasifier (TLUD), Household, Batch loaded
Fuels
Crop residues, Pellets, Other
Materials
Metal
Performance details
IWA emissions  
Metric Min value Max value Number of tests
IWA high power CO 7.0 g/MJ-del 7.0 g/MJ-del 1
IWA high power PM 274.0 mg/MJ-del 274.0 mg/MJ-del 1
IWA low power CO 0.029 g/min/L 0.029 g/min/L 1
IWA low power PM 1.42 mg/min/L 1.42 mg/min/L 1
IWA efficiency  
Metric Min value Max value Number of tests
IWA high power thermal efficiency 42.2 % 42.2 % 1
IWA low power specific consumption 0.03 MJ/min/L 0.03 MJ/min/L 1
IWA indoor emissions  
Metric Min value Max value Number of tests
IWA high power indoor CO 0.478 g/min 0.478 g/min 1
IWA high power indoor PM 19.3 mg/min 19.3 mg/min 1
Output
Metric Min value Max value Number of tests
Cold start firepower 2721.0 W 2721.0 W 1
Time to boil cold start 30.0 min 30.0 min 1
Turn down ratio 1.47 1.47 1
Emissions
Metric Min value Max value Number of tests
PM2.5 emissions factor (2) 0.61 g/kg fuel 0.61 g/kg fuel 1
CO emissions factor (2) 14.083 g/kg fuel 14.083 g/kg fuel 1