Test result
Water boiling test (WBT)
Stove and fuel
Stove description
A carefully operated laboratory three-stone fire made with three bricks 9.5 cm high.
Stove characteristics
Three stone fire
Fuel type
Wood
Fuel moisture content
not available
Fuel net calorific value
not available
Test information
Test details
WBT-3.0, 5 Liters Boiled
Testing organization
Reporting type
Not available
Country
United States
Year performed
2010
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 8.522 g/MJ-del
IWA high power PM 572.743 mg/MJ-del
IWA low power CO 0.162 g/min/L
IWA low power PM 4.778 mg/min/L
IWA efficiency  
Metric Value SD (σ) Cv
IWA high power thermal efficiency 19.5170013%
IWA low power specific consumption 0.048 MJ/min/L
IWA indoor emissions  
Metric Value SD (σ) Cv
IWA CO 0.868 g/min
IWA PM 38.685 mg/min
Efficiency, energy consumption and fuel use
Metric Value SD (σ) Cv
Specific energy consumption 21800.0 kJ/task
Fuel consumed 1253.0 g/task
Hot start thermal efficiency 19.6%
Cold start thermal efficiency 19.4%
Output
Metric Value SD (σ) Cv
Cold start firepower 7761.0 W
Hot start firepower 8243.0 W
Simmer firepower 3130.0 W
Mean time to boil 26.7 min
Emissions
Metric Value SD (σ) Cv
CO emissions factor (2) 51.39741438 g/kg fuel
CO emissions rate 0.868259594 g/min