ʻO kahi pahu pahu pahu ahi kahe i kū i ke ahi kūlū he kū i ka pahu i ka nui o ka pahu i ka nui o ka pahu. Hoʻopau i nā pahu ahi ahi i ka pahu a ʻo ka pā wai wai hoʻoneʻe e paʻa i nā ʻaoʻao ʻākau a ʻaoʻao hema o ka lua. Me ke kaulahao uila uila māmā no ka hānai ʻana i ka mīkini a e ka peʻahi a me ka blower no ka ea ʻana o ka mīkini, ʻike i ka taphole mīkini e ka remover slag remover.
Hāʻule ka hopper o ka wahie e hoʻopaʻa i ka pā, a laila komo i ka umu ahi no ke puhi ʻana, e ka lumi lehu ma luna o ke kia hope, komo ka lapalapa ma loko o ka pahu ahi backhaul mua i smokebox mua, a laila huli hoʻi mai smokebox mua i ka lua flue no economizer a ʻO ka mea hōʻiliʻili lepo, i ka hope loa, hoʻokuʻu ʻia i ka lewa e ka peʻahi draft ma o ka chimney.