... persons Material: Hemlock(Interior & Exterior) Heating System Ceramic Heater Type: Spa Capsule,Infrared sauna,Dry Sauna Control System: ... sensor Door: Tempered Glass Warranty : heaters, sauna cabin, electrical components for 2 years ,Radio/CD for1 year. Sauna ... board Compared with the traditional ceramic tube heater and the tourmaline heater, we choose infrared heater, which can kill micro-organisms ...