Ngenxa yokuthi abantu bajwayele ukubiza ama-boiler generator umusi, ama-jeneretha omusi ngokuvamile abizwa ngokuthi ama-boilers. Ama-boilers e-steam ahlanganisa ama-generator e-steam, kodwa ama-jeneretha e-steam awawona ama-boilers we-steam.
Ijeneretha yesitimu iyisisetshenziswa esiwumshini esebenzisa uphethiloli noma eminye imithombo yamandla ukushisisa amanzi ukuze kukhiqizwe amanzi ashisayo noma isitimu. Ngokwesigaba sesiteshi sokuhlola i-boiler, i-generator ye-steam ingeyomkhumbi wokucindezela, futhi ukukhiqizwa nokusetshenziswa kufanele kwenziwe lula.