Prime Square Fuelwood Regular
Prime Square Fuelwood 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: Firewood, branches, cornobs, coconut husk COUNTRY OF ORIGIN: Indonesia

IWA tiers of performance
Show subtiers
2
Emissions
2
Efficiency
2
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, Denmark, Ethiopia, Germany, Ghana, Indonesia, Kenya, Malaysia, Nepal, Nigeria, Norway, Philippines, Senegal, Sri Lanka, Sweden, Timor-Leste, United States, Viet Nam, 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
Availability
On the market
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
Portable, Batch loaded, Gasifier (TLUD), Non-traditional, Household
Fuels
Briquettes, Wood
Materials
Metal
Performance details
IWA emissions  
Metric Min value Max value Number of tests
IWA high power CO 4.1 g/MJ-del 4.1 g/MJ-del 1
IWA high power PM 211.0 mg/MJ-del 211.0 mg/MJ-del 1
IWA low power CO 0.033 g/min/L 0.033 g/min/L 1
IWA low power PM 1.82 mg/min/L 1.82 mg/min/L 1
IWA efficiency  
Metric Min value Max value Number of tests
IWA high power thermal efficiency 34.1 % 34.1 % 1
IWA low power specific consumption 0.031 MJ/min/L 0.031 MJ/min/L 1
IWA indoor emissions  
Metric Min value Max value Number of tests
IWA high power indoor CO 0.239 g/min 0.239 g/min 1
IWA high power indoor PM 13.3 mg/min 13.3 mg/min 1
Output
Metric Min value Max value Number of tests
Cold start firepower 2814.0 W 2814.0 W 1
Time to boil cold start 38.0 min 38.0 min 1
Turn down ratio 1.5 1.5 1
Emissions
Metric Min value Max value Number of tests
PM2.5 emissions factor (2) 0.668 g/kg fuel 0.668 g/kg fuel 1
CO emissions factor (2) 12.49 g/kg fuel 12.49 g/kg fuel 1