For too long, sauna users have experienced unwanted temperature fluctuations in poorly designed saunas, resulting in less healing and higher energy bills. The insulation of a sauna is just as important as the heating system because it allows the temperature inside to remain constant. We have developed a design that works with our heating system, and uses the temperature inside the sauna to keep your sauna at a constant temperature. This means you can keep your sauna at the right temperature with less effort, and receive the maximum health benefits from our Medical Sauna™.