● Ua hana ʻia nā ʻāpana koʻikoʻi o nā resistors me nā mea insulating a me nā mea wela kiʻekiʻe e like me ke ʻano o ka pale pale, e ʻeha like me nā uea wili kiʻekiʻe.
● Metala alumini pūpū ipu me ka kiʻekiʻe insulation non-combustible uila paʻi, no laila, i ka aluminika shell a me ke kū'ē kumu mea e pili kokoke i hui i loko o ka paʻa mea,ʻaʻole pili i waho ea, vibration a me ka lepo, me kiʻekiʻe paʻa a me ka thermal conductivity.
● Hana ʻia ka pūpū alumini me ka alumini 6063 ʻoihana kiʻekiʻe, a ʻo ka ʻili he kiʻekiʻe-mehana anodized e hoʻokō ai i nā hiʻohiʻona nani a me ka hoʻopau wela nui.
● Hoʻohana ʻia ka insulation ma o ke kaʻina hana wela kiʻekiʻe.