SunRay The Southport, 3-Person Indoor Traditional SaunaThe Southport 3 Person Indoor Traditional Sauna is built from Canadian hemlock wood, offering a sturdy yet attractive design. The 4. 5kW Harvia Heater generates temperatures up to 170 degrees Fahrenheit. The included water cask and spoon enable you to add water to the heater stones to achieve your desired humidity level. Standard features include: Thermo hygrometer to show humidity levels Ergonomic seating for comfort and ease Interior lighting Sand