Kujiejun "苦節君 kujiejun" (other spellings koojiejun/kojiejun) this is a type of bamboo stove and is also a special term for "chazao茶灶" tea stove.
Popular during Song Dynasty, the bamboo windscreen stove frame would fit on top of a brazier.
This is special name for a windscreen stove. This type of stove was also used during the Tang dynasty when tea was boiled.