Test result: Jiko, Metal
Water boiling test (WBT)
Stove and fuel
Stove
Stove description
Jiko Metal, charcoal fuel (Wet)
Stove characteristics
Traditional
Fuel type
Charcoal
Fuel description
Charcoal, wet
Fuel moisture content
0.069%
Fuel net calorific value
28.2 MJ/kg
Test information
Test details
WBT 4.1.2, 2 Liters of water
Testing organization
Reporting type
Third party
Country
United States
Year performed
2012
Test environment
Lab
Altitude
not available
Number of replicate tests
3
Test result IWA tiers of performance
Show subtiers
unrated
Emissions
unrated
Efficiency
unrated
Indoor emissions
unrated
Safety
Performance metrics
IWA emissions  
Metric Value SD (σ) Cv
IWA high power CO 25.65 g/MJ-del 3.65 0.14
IWA high power PM 575.5 mg/MJ-del 170.0 0.3
IWA low power CO 0.083 g/min/L
IWA low power PM 0.667 mg/min/L
IWA efficiency  
Metric Value SD (σ) Cv
IWA high power thermal efficiency 24.3% 0.8 0.03
IWA low power specific consumption 0.047 MJ/min/L
IWA indoor emissions  
Metric Value SD (σ) Cv
IWA CO 0.708 g/min
IWA PM 10.133 mg/min
Efficiency, energy consumption and fuel use
Metric Value SD (σ) Cv
Fuel consumed 133.0 g/task
Hot start thermal efficiency 34.3% 1.1 0.03
Cold start thermal efficiency 14.3% 0.5 0.03
Output
Metric Value SD (σ) Cv
Cold start firepower 3149.0 W 168.0 0.05
Hot start firepower 2799.0 W 431.0 0.15
Simmer firepower 1166.0 W 66.0 0.06
Mean time to boil 24.6 min 3.7 0.15
Emissions
Metric Value SD (σ) Cv
CH4 emissions factor (2) 5.7715 g/kg fuel
CO emissions factor (2) 164.175 g/kg fuel
PM2.5 emissions factor (2) 1.95225 g/kg fuel
CO emissions rate 0.708 g/min
PM2.5 emissions rate 8.586940893 mg/min