Incazelo yesichazamazwi ethi "umlilo kagesi" iyidivayisi ekhiqiza ukushisa isebenzisa ugesi, ngokuvamile eklanyelwe ukufana neziko noma isitofu esivamile. Imililo kagesi ivamise ukusetshenziswa njengomthombo wokushisa okungeziwe ezindlini noma ezindaweni zezentengiselwano, futhi ngokuvamile inikwa amandla ngokuxhunywa odongeni. Bangase basebenzise ubuchwepheshe obuhlukahlukene bokushisisa, okuhlanganisa ukufudumeza okukhazimulayo, ukushisisa okuhambisayo, noma ukufudumeza komoya okuphoqelelwe, futhi kungase kuklanyelwe ukusetshenziswa ezilungiselelweni ezihlukahlukene, okuhlanganisa amakhaya, amahhovisi, nezikhala zangaphandle.