ʻO ka mea mua i hoʻohanaʻia i nā pōpilikia a me nā haunaele hakakā i kapaʻia he keleawe haʻahaʻa haʻahaʻa haʻahaʻa haʻahaʻa haʻahaʻa haʻahaʻa haʻahaʻa haʻahaʻa, he maʻamau ka pae. A hiki i ka hoʻohanaʻiaʻana o ka boiler me ka wana carbon haʻahaʻa, e like me 20g,ʻaʻole iʻoi aku ka nui o ka mahana. Me ka hoʻonuiʻana o ka hoʻohanaʻana i nā mea kanu like, ua hoʻonui ka ikaika o ka hana ma ka 700. ʻO ka mahana o ka mahana o ka wela o ka wela-resistantʻo 200 ~ he 300 degree, he nui ka hana o ka mīkini i kahi o ka mika maʻalahi a me keʻano he nui.
