Test result: StoveTec Charcoal Prototype
Water boiling test (WBT)
Stove and fuel
Stove description
StoveTec Charcoal, charcoal fuel (Wet), StoveTec "Superpot"
Stove characteristics
Non-traditional, Ceramic-lined, Pot skirt
Fuel type
Charcoal
Fuel description
Charcoal, wet
Fuel moisture content
0.078%
Fuel net calorific value
28.2 MJ/kg
Test information
Test details
WBT 4.1.2, 5 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 17.7 g/MJ-del 1.95 0.11
IWA high power PM 415.0 mg/MJ-del 90.0 0.22
IWA low power CO 0.084 g/min/L
IWA low power PM 1.397 mg/min/L
IWA efficiency  
Metric Value SD (σ) Cv
IWA high power thermal efficiency 30.7% 2.15 0.07
IWA low power specific consumption 0.014 MJ/min/L
IWA indoor emissions  
Metric Value SD (σ) Cv
IWA CO 0.814 g/min
IWA PM 16.783 mg/min
Efficiency, energy consumption and fuel use
Metric Value SD (σ) Cv
Fuel consumed 60.0 g/task
Hot start thermal efficiency 29.5% 2.2 0.07
Cold start thermal efficiency 31.9% 2.1 0.07
Output
Metric Value SD (σ) Cv
Cold start firepower 2991.0 W 425.0 0.14
Hot start firepower 4354.0 W 163.0 0.04
Simmer firepower 1038.0 W 91.0 0.09
Mean time to boil 29.0 min 1.85 0.06
Emissions
Metric Value SD (σ) Cv
CH4 emissions factor (2) 4.32675 g/kg fuel
CO emissions factor (2) 171.075 g/kg fuel
PM2.5 emissions factor (2) 3.315 g/kg fuel
CO emissions rate 0.814 g/min
PM2.5 emissions rate 16.59026189 mg/min