Kutenthetsakutanthauza njira yomwe imawotchera kutentha kwathunthu kapena m'malo owotcherera musanawotchere. Makamaka zinthu zabwino kuwotcherera mlingo mkulu mphamvu, kuumitsa chizolowezi chitsulo, madutsidwe matenthedwe, makulidwe zowotcherera zazikulu, ndipo pamene yozungulira kutentha ndi otsika kwambiri, kuwotcherera zone nthawi zambiri amafuna matako kutentha pamaso kuwotcherera.

Cholinga cha preheating ndi kuchepetsa liwiro kuzirala kwa welded mfundo ndi kutentha preheating. Zitha kuwoneka kuchokera patebulo, kutentha kumatha kuchepetsa kuzizira, koma sikunakhudze nthawi yokhala mu kutentha kwakukulu, komwe kuli kofunikira kwambiri. Choncho pamene kuwotcherera zitsulo ndi chizolowezi kuumitsa, kuchepetsa mlingo kuzirala amachepetsa kuumitsa chizolowezi miyeso waukulu ndondomeko, ndi konzekera, osati kuonjezera athandizira mphamvu.