HUUM Extension Box for Sauna Heaters over 10.5 kW HUUM Sauna Control Ideal for sauna rooms between

Ideal for sauna rooms between 353–882 ft³

Good for Sauna Rooms: 300-370 ft³

it provides excellent heating performance and smooth steam

The Narvi NC 24 is a powerful wood-burning sauna stove designed for larger sauna rooms (10–24 m³)

250 kg (551 lb) of sauna stones with a diameter of 5–10 cm (2-4 in)

HUUM Extension Box for Sauna Heaters over 10.5 kW HUUM Sauna Control Ideal for sauna rooms betweenHUUM Extension Box for UKU Sauna Control System is is necessary when the wattage of the sauna heater exceeds the power of the main module. It is for sauna heaters over 10. 5 KW. This box is mandatory for HUUM Hive 12, 15 and 18 kW.