Iimpawu kunye nezinto eziluncedo:
1. Ngokwezinto ezahlukeneyo zokumisa, isakhiwo esifanelekileyo se-cylinder sinokukhethwa.
2. Ukusebenza okugudileyo nokuthembekileyo.
3. Imithombo eyahlukeneyo yokushisa iyafumaneka: igesi yendalo, idizili, amalahle, amasuntswana e-biomass, njl.
4. Ukulawula ubushushu obukrelekrele.