He wāhanga whakawhiti wera nui te matua o te radiator. I te wā e hangaia ana, he maha ngā wā me neke ki ngā teihana mahi rerekē hei tukatuka. Ko te tikanga tuku iho o te kawe ko te kawe ā-ringa. Mō te matua radiator he nui te rahi, he nui te mahi me te wā e hiahiatia ana mō te kawe ā-ringa, ā, ka nui ake ngā utu whakaputa me te iti o te whai huatanga o te whakaputa. Hei tāpiri, he ngāwari te tukinga tangata i te wā e kawe ana, ka puta he rerekētanga o ngā tara, ka pā ki te kounga o te hua kua oti.
