Lero, tikambirana kusiyana pakati pa uvuni ndi ng'anjo ya muffle. Choyamba, tiyeni tione zida ziwirizi.
Mavuvuni amagwiritsa ntchito ukadaulo watsopano-wopulumutsa mphamvu komanso wosamalira chilengedwe, ukadaulo wolimbikitsidwa ndi boma. Mphamvu yamagetsi imagwiritsidwa ntchito kutenthetsa machubu otenthetsera magetsi, kutulutsa kutentha komwe kumasinthidwa mwachindunji kukhala mphamvu yotentha ikatengeka ndi chinthu chotenthedwa. Izi zimabweretsa kuyanika mwachangu, kufupikitsa kapangidwe kazinthu, kupulumutsa mphamvu, komanso kukonza zinthu.
Miyendo ya muffle imagwiritsidwa ntchito powotchera ndipo imagwira ntchito pa kutentha kwambiri kuposa mauvuni.
Ma ng'anjo a muffle ali ndi zabwino zingapo:
1. Kuwongolera mwatsatanetsatane, kupatuka pang'ono, ndi kutentha kwachangu;
2. Kuwongolera kutentha kwanzeru kumachepetsa zolakwika za opareshoni ndikuwongolera magwiridwe antchito;
3. Amagwiritsa ntchito-zotsekera m'mphepete. Zokhalitsa, zogwira mtima, komanso zopatsa mphamvu-zopanda mphamvu.
Tafotokoza mwatsatanetsatane mawonekedwe a uvuni ndi ng'anjo za muffle, zomwe zimapereka zabwino m'mafakitale osiyanasiyana.