HUUM Stone Cage HSTVEnhance both the performance and visual appeal of your HUUM wood burning sauna stove with the HUUM Cage HSTV Stone Cage. Designed to mount above the stove and encircle the flue, this accessory holds up to 88 lbs of sauna stones (sold separately), significantly increasing the units thermal mass and steam generating surface area. The result is improved heat retention and richer steam, contributing to a more soothing and immersive sauna experience.