1. E like me ke ʻano o ka ʻāpana keʻa o ka ʻeke kānana lepo, hiki ke hoʻokaʻawale ʻia i: nā ʻeke pālahalaha (trapezoidal a pālahalaha) a me nā ʻeke pōʻai (cylindrical).
2. E like me ka ea inlet a me ka puka puka 'ano, hiki ke maheleia i: lalo ea inlet a me luna ea puka, luna ea inlet a me lalo ea puka, a pololei 'ano o keia manawa (palena i ka papa-ʻano palahalaha eke).
3. E like me ke ʻano kānana o ka ʻeke kānana lepo, hiki ke hoʻokaʻawale ʻia i: ʻano kānana waho a me ke ʻano kānana kūloko.
4. E like me ka mahana hoʻomanawanui o ka lepo kānana eke, ua maheleia lakou i: kiʻekiʻe wela 'ano, waena wela 'ano, a maʻamau 'ano wela . 5. palapala noi kahua noi: hao a me ke kila wili, ferroalloy mea kanu, refractory mea kanu, foundries, mana mea kanu, sima mea kanu, kemika mea kanu, palaoa mea kanu, kalapona eleele mea kanu, aluminika mea kanu, etc.
(1) ʻAno wela haʻahaʻa, kūpono no ka ʻeke lepo ohi ma nā wahi lepo lepo e like me nā wili mea maka, nā wili sima, luna a lalo o nā silos, a me nā mea ʻē aʻe, a ke hoʻohana ʻia ma lalo o nā kūlana haʻahaʻa kiʻekiʻe, pono e mālama ʻia ka ʻili me ka ʻaila -repellent a me nā mea mālama wai;
(2) ʻAno maʻamau a me ke kiʻekiʻe wela, kūpono no ka ʻeke lepo ʻohi no ke kiʻekiʻe o ka wela hoʻopau kinoea hoʻomaʻamaʻa e like me ka cement vertical kilns, rotary kiln huelo, coolers, dryers, etc., a ke hoʻohana ʻia ma lalo o ke kūlana kiʻekiʻe o ka wela a me ka haʻahaʻa haʻahaʻa, pono e mālama ʻia ka ʻili me ka ʻaila -repellent a me nā mea mālama wai.