HUUM Air TunnelAir Tunnel for Hive Sauna Heaters Internal air tunnel for HIVE sauna heaters speeds up sauna heating by 25% and extends the life span of heating elements. It is made of stainless steel and installed in the middle of the heater. When using the air tunnel, you need approximately 2 boxes fewer stones. Features Compatible with all HIVE heaters Shortens heat up time Increases life of heating elements Less stones needed to fill heater Constructed of

Installation Manual

Forte Series

For sauna rooms from 177 to 494 cu

Heating Element Air Tunnels (3)

ensuring efficient heating and proper air circulation during sauna use

Olivine diabase sauna stones

Silky-smooth seating is made from beautiful Thermo-Aspen that is 50% thicker than in lesser saunas

Chimney element bracket

The heater is designed so that its sauna rocks are in direct contact with its heating elements for more efficient heat transference

The Harvia black powder coated steel chimney is an easy-to-install stylish chimney solution

Scandinavian elegance

Compatible with Harvia 10 heater