Original Gyapa
Original Gyapa

The Original Gyapa has been benefiting users in Ghana since 2002. This is locally produced by certified, Ghanian ceramists and metal artisans. This portable charcoal burning stove has been developed to match local cooking habits and meet household needs especially for urban and semi-urban users. The stove has a ceramic liner and metal exterior and comes in five sizes to accommodate cooking needs for domestic as well as commercial users.

IWA tiers of performance
Show subtiers
0
Emissions
2
Efficiency
0
Indoor emissions
unrated
Safety
Information for consumers
Maximum pot capacity
not available
Approximate lifetime
3 years
People fed per meal
1-50
Pot type accommodated
(Flat bottom/Round bottom)
Both
Countries deployed
Ghana
Common foods cooked
banku, fufu, stews, rice
Manufacturer's warranty available?
Yes
Warranty details
with certified warranty, replacement for first year
General information
Manufactured in
Ghana
Suggested retail price
USD 7
Availability
On the market
Dimensions (l/w/h)
200/200/350 mm
Weight
5.0 kg
Shipping dimensions
not available
Shipping weight
not available
Local assembly possible?
Yes
Materials needed for local assembly
not available
Includes instructions?
No
Other information
not available
Characteristics
Batch loaded, Non-traditional, Household, Portable, Ceramic-lined
Fuels
Charcoal
Materials
Ceramic, Metal
Performance details
IWA emissions  
Metric Min value Max value Number of tests
IWA high power CO 36.8 g/MJ-del 44.3 g/MJ-del 2
IWA high power PM 476.5 mg/MJ-del 791.5 mg/MJ-del 2
IWA low power CO 0.239 g/min/L 0.281 g/min/L 2
IWA low power PM 1.277 mg/min/L 2.3 mg/min/L 2
IWA efficiency  
Metric Min value Max value Number of tests
IWA high power thermal efficiency 26.5 % 27.0 % 2
IWA low power specific consumption 0.026 MJ/min/L 0.026 MJ/min/L 2
IWA indoor emissions  
Metric Min value Max value Number of tests
IWA CO 1.69 g/min 1.996 g/min 2
IWA PM 16.192 mg/min 26.792 mg/min 2
Efficiency, energy consumption and fuel use
Metric Min value Max value Number of tests
Cold start thermal efficiency 22.5 % 22.6 % 2
Hot start thermal efficiency 30.3 % 31.5 % 2
Fuel consumed 85.0 g/task 86.0 g/task 2
Output
Metric Min value Max value Number of tests
Cold start firepower 3439.0 W 3615.0 W 2
Hot start firepower 3609.0 W 3866.0 W 2
Simmer firepower 1759.0 W 1766.0 W 2
Mean time to boil 35.7 min 37.4 min 2
Emissions
Metric Min value Max value Number of tests
PM2.5 emissions factor (2) 2.485 g/kg fuel 4.3675 g/kg fuel 2
CO emissions factor (2) 300.575 g/kg fuel 361.375 g/kg fuel 2
CH4 emissions factor (2) 4.94625 g/kg fuel 6.097 g/kg fuel 2
PM2.5 emissions rate 14.53800244 mg/min 24.51411535 mg/min 2
CO emissions rate 1.69 g/min 1.996 g/min 2