I-boiler iyithuluzi elisebenza ngomshini elisebenzisa amandla okushisa kaphethiloli noma eminye imithombo yamandla ukuze ashise amanzi emanzini ashisayo noma umusi. Incazelo yasekuqaleni yebhodwe ibhekisa esitsheni samanzi esifudumele emlilweni, futhi isithando somlilo sibhekisele endaweni lapho uphethiloli ushiswa khona. I-boiler ifaka izingxenye ezimbili: imbiza kanye nesithando. Amanzi ashisayo noma umusi okhiqizwe ku-boiler angahlinzeka ngokuqondile amandla okushisa ukuze akhiqizwe izimboni kanye nokuphila kwabantu, futhi aguqulwe abe amandla omshini ngesitshalo sikagesi nge-generator. I-boiler enikezela ngamanzi ashisayo ibizwa ngokuthi i-hot water boiler, esetshenziselwa kakhulu impilo, nayo inesicelo esincane ekukhiqizweni kwezimboni. I-boiler ekhiqizwayo eyenziwe nguSteam ibizwa ngeSteam Boiler, evame ukubizwa ngokuthi i-boiler, esetshenziswa kakhulu eziteshini zamandla ezishisayo, imikhumbi, izindawo eziphezulu kanye namabhizinisi wezimboni kanye nezimayini.
