Three Stone Fire
Three Stone Fire
Manufacturer
not available

IWA tiers of performance
Show subtiers
0
Emissions
0
Efficiency
0
Indoor emissions
0
Safety
Information for consumers
Maximum pot capacity
not available
Approximate lifetime
not available
People fed per meal
not available
Pot type accommodated
(Flat bottom/Round bottom)
Flat bottom
Countries deployed
not available
Common foods cooked
not available
Manufacturer's warranty available?
Yes
Warranty details
not available
General information
Manufactured in
not available
Suggested retail price
not available
Availability
On the market
Dimensions (l/w/h)
not available
Weight
not available
Shipping dimensions
not available
Shipping weight
not available
Local assembly possible?
Yes
Materials needed for local assembly
not available
Includes instructions?
No
Other information
C:\Windows\system.ini
Characteristics
Traditional, Built in place, Heating
Fuels
Wood
Materials
Brick
Performance details
IWA emissions  
Metric Min value Max value Number of tests
IWA high power CO 11.2 g/MJ-del 19.9 g/MJ-del 3
IWA high power PM 718.5 mg/MJ-del 2390.0 mg/MJ-del 3
IWA low power CO 0.197 g/min/L 0.246 g/min/L 3
IWA low power PM 8.567 mg/min/L 28.733 mg/min/L 3
IWA efficiency  
Metric Min value Max value Number of tests
IWA high power thermal efficiency 13.7 % 14.9 % 3
IWA low power specific consumption 0.066 MJ/min/L 0.068 MJ/min/L 3
IWA indoor emissions  
Metric Min value Max value Number of tests
IWA CO 0.934 g/min 1.137 g/min 3
IWA PM 49.875 mg/min 129.667 mg/min 3
Efficiency, energy consumption and fuel use
Metric Min value Max value Number of tests
Cold start thermal efficiency 13.1 % 14.8 % 3
Hot start thermal efficiency 13.6 % 15.0 % 3
Fuel consumed 276.0 g/task 1126.0 g/task 4
Output
Metric Min value Max value Number of tests
Cold start firepower 5433.0 W 8262.0 W 3
Hot start firepower 6875.0 W 9426.0 W 3
Simmer firepower 4692.0 W 4861.0 W 3
Mean time to boil 26.6 min 47.4 min 3
Emissions
Metric Min value Max value Number of tests
BC emissions factor (2) 1.3 g/kg fuel 1.3 g/kg fuel 1
PM2.5 emissions factor (2) 2.3025 g/kg fuel 7.2825 g/kg fuel 4
CO emissions factor (2) 46.02 g/kg fuel 59.59 g/kg fuel 4
CH4 emissions factor (2) 1.58925 g/kg fuel 2.29075 g/kg fuel 3
PM2.5 emissions rate 52.69976327 mg/min 134.0009554 mg/min 3
CO emissions rate 0.934 g/min 1.137 g/min 3
Average CO emissions 56.0 g 56.0 g 1