Methane (CH4) he kinoea ʻaʻa ʻole a waihoʻoluʻu ʻole a lawelawe ʻo ia ma ke ʻano he kumu wahie ʻoi aku ka maikaʻi. Ho'ā ia ma kahi o 538 ° C, hoʻopau wale i ka wā e hiki ai i nā mahana kikoʻī.
Hōʻike ʻia e ka lapalapa uliuli, Hiki i ka methane ke piʻi i ka wela kiʻekiʻe ma kahi o 1400°C. I ka hui ʻana me ka ea, lilo ia pahū ma waena 4.5% a 16% nā manaʻo. Ma lalo o kēia paepae, e puhi ikaika ana, oiai maluna, hoomau ia i ka oi aku o ka haahaa puhi ahi.