Particulate and gaseous emissions from manually and automatically fired small scale combustion systems

► Emissions were tested for combustion of briquettes, logs and pellets in modern stoves. ► Automatically fired systems emit an order of magnitude less PM10, mainly inorganics. ► Levoglucosan accounts for 5% of PM10 emitted by manually fired stoves. ► Levoglucosan was mostly below detection limit in automatically fired systems. ► Levoglucosan/mannosan ratios were of 2-4 for softwood and >10 for hardwood.