Amababi y'ibihumyo cornucopus ubwoko bwitara ryumunyu urwego rwigihugu rwabanyamerika
Ahantu hakoreshwa itara ryumunyuItara ryumunyu munsi ya 5KG: 7-25W, ibereye icyumba cya metero kare 3-5; Itara ry'umunyu 5–7KG: 15-25W, ibereye icyumba cya metero kare 5-9;Itara ry'umunyu 7–11KG: 15- 40W, ibereye icyumba cya metero kare 9-14;Itara ry'umunyu 11-16KG: 25- 40W, ibereye icyumba cya metero kare 18-18;Itara ry'umunyu 16-22KG: 40-60W, ibereye icyumba cya metero kare 25-25.