Malinga ndi njira yotenthetsera, imatha kugawidwa mumphika wokhala ndi nthunzi yotenthetsera ndi poto yamagetsi yamagetsi. Kusankhidwa kwa mphika wokhala ndi nthunzi wotenthetsera kumapangidwa molingana ndi kutentha kwa zinthu kapena kukula kwa mphamvu ya nthunzi. Makulidwe ofunikira a mbale yachitsulo ndi yokulirapo. Mphika wamoto wamagetsi wamagetsi ulibe vuto la kupanikizika, koma poto yamoto yotentha yamagetsi imagwiritsa ntchito magetsi ambiri, omwe sangapulumutse mphamvu. Kutentha kwamagetsi ndikoyenera kumabizinesi ogulitsa mafakitale opanda ma boilers a nthunzi.