The Himalaya electric sauna heater has several unique features: a rock tower design with 210 pounds of rocks and standard BioWater Technique technology (an integral water tank that emits soft steam during the sauna session). The combination of soft heat from the large rock mass and the humidity from the BioWater Technique is a game changer in the sauna industry, creating a much more pleasant sauna experience. Use in corner installations, mid-sauna installations, or other through-bench installations.