Original Gyapa
Manufacturer
Website
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
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)
(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 |