[en] Using a Zimbabwe improved metal stove, pollutant emissions from rice husk briquettes were compared to emissions from wood in terms of emission factor, acidity levels and emission performance indices. Emission factors for rice husk briquettes were found to range from 50.1 to 179.7, and 12.4 to 24.3 g/kg for carbon monoxide and total suspended particulates, respectively, as compared to emission factors for wood which were found to range from 30.2 to 60.6, and 9.9 to 14.0 g/kg for carbon monoxide and total suspended particulates, respectively. Acidity levels from the emitted hydrocarbons for rice husk briquettes were higher compared to those for wood. (author)