ʻI he kamataʻanga, ʻOku mahuʻinga ke ʻiloʻi ʻoku ʻikai ke ʻi ai ha nanamu ʻo e methane mo e kaponi kaponi, lolotonga biogas emits ha nanamu taʻe-fakafiemalie koeʻuhi ko ha ngaahi kasa kehe, ʻOku ne namuʻi ha meʻangaue ʻoku ʻikai ola lelei.
Ko e founga totonu ke fakaulo ʻa e ngaahi kasa ko ʻeni mo tauhi ʻenau ngaahi toʻonga afi. ʻOku ʻomi ʻe Methane afi ha vai lahi ange molecules ʻi hono fakafehoanaki ki he kaponi kaponi.
ʻI he igniting fakafoʻituitui ʻa e kasa takitaha pea toki ʻufiʻufi ʻa e ulo ʻo e afi mo ha momoa, fakaʻofoʻofa beaker, ʻOku ʻuhinga ʻa hono faʻu ʻo e vai ʻi he loto ʻo e beaker methane, ka ʻoku fakahaaʻi ʻe heʻene mavahe ʻa e kaponi kaponi.