The way of cutting bamboo differs; when it is used with Furo (a portable brazier used in summer season), the bamboo node is situated at the top, which is called Tenbushi; when it is used with Ro (a fixed hearth used in winter season), the bamboo node is almost in the middle, which is called Chubushi.
また炉と風炉の場合で切り方が異なり、天節と呼ばれる上端に節があるものが風炉用、中節と呼ばれる節が真中あたりに来るものが炉用である。