There is a hole to supply wind called 'fumon' (wind's gate) at the front, and at the top section there is 'hibukuro' (burning place of toro), a hole to put charcoal in and place bofura (ceramic kettle).
正面に風を送り込むための穴「風門」、上部に炭を入れ、ボーフラを載せる穴「火袋」がある。