Harvia The Wall SW80 Electric Sauna HeaterHarvia sauna heaters are made by Harvia Manufacturing of Finland. This heater will heat up to 423 cubic feet (length x width x height). These heaters boast stainless heating elements, a stainless interior and are approved for use wet or dry. The controls feature a built in, top mounted 1 Hour timer control (with 1 8 hour preset) that can be configured on the right or the left side of the unit and is illuminated for easy operation in low light. The