Ishubhu lokufudumeza ihhavini lenziwe nge-MgO eguquliwe yekhwalithi ephezulu njenge-filler kanye nensimbi engagqwali njengegobolondo. Ngemva kokunciphisa ishubhu, lingena kuhhavini ukuze likhiphe umswakama. Lingagoba noma yisiphi isimo ngokwezidingo zomsebenzisi. Lisetshenziswa kabanzi kwamanye amahhavini nakwezinye izinto zasekhaya.
Ngaphambi kophenyo, sicela usithumelele imininingwane engezansi:
1. Ukusithumelela umdwebo noma isithombe sangempela;
2. Usayizi we-heater, amandla kanye ne-voltage;
3. Noma yiziphi izidingo ezikhethekile ze-heater.
















