VEVOR Electric sauna heater 9 kW dry 380 V-415 V with internal controller sauna stainless steel household bath shower spa sauna heating working range 9-13 m³ stone not included : Amazon.nl: DIY & Tools
Amazon.com: Cryfokt Sauna Heater, 380V Sauna Stove, 3 Phase Stainless Steel for Home Hotel (18KW) : Patio, Lawn & Garden