Enlighten InfraNature Duet Diamond 4-Person Slope Roof Hybrid Infrared/Traditional Outdoor SaunaThis is a hybrid type sauna in the Diamond line that seats up to four people comfortably. Hybrid saunas combine two or more types of heating. Our saunas use electrical heaters from Harvia and specifically designed infra red lamps to achieve the sought after effect quickly and efficiently. Bringing together the best of both worlds, electrical heat, and infra red heat means that the moment you enter the sauna you feel the warmth. Then youre ready to