This slender version of the robust HIVE heater fits up to 374 lbs (308lbs with HIVE air tunnel) of sauna stones and has been engineered for sauna spaces up to 530 cubic feet (CF). The HIVE Mini 9kW sauna heater was thoughtfully designed with smaller sauna spaces in mind. The HIVE Mini 9 provides a traditional sauna experience by creating a consistent radiant heat each bathing session. The sauna unit features durable stainless-steel construction and comes equipped with industrial-quality heating elements. The Mini 9 sauna heater provides long-lasting beauty strength and durability. The unit s large 374-pound stone capacity ensures a soft consistent high heat. The heater is designed so that its sauna rocks are in direct contact with its heating elements for more efficient heat transference. The heater includes adjustable legs for added flexibility.