https://www.sentiotec.com/en/categories/harvia-austria-sauna/ofen/viking_master

sentiotec sauna heaters with integrated control unit. The Viking impresses with its slim and simple design. The convenient height of the knobs makes it very user-friendly. The stainless steel outer case makes it very easy to care for, and very durable.

Innovative technology:
■ Sauna heater capacity: 4.5 kW, 6 kW, 8 kW and 9 kW
■ Integrated control unit
■ Quick and easy assembly
■ Suitable for monophase connection
■ Free choice of the side on which the knob is installed