Āhuahira
1. Ko te ararewa oumu ka pehia ki te kawemai i te kōwae muka refractory, e whakakapi ana i te hanganga pereki whakaahuru taketake.
2. Ka whakamahi i te taputapu mana pāmahana uru, te mana PID, te mana pumau o te oumu i te ≤±5°C;