Traditional saunas involve an electric heater that heats up sauna stones which then radiate heat throughout the sauna room. It takes approximately 30 to 40 minutes to heat up a traditional sauna. While in the sauna, most bathers pour water over the rocks to increase the humidity in the sauna. This often moistens the nasal passages and makes the room more comfortable. At Great Atlantic Hot Tubs, Pools & Saunas, we offer several traditional saunas from Finnleo. Finnleo Saunas are the most well built products available in the sauna and steam suite world. Built in the Finnish tradition, there is a model perfect for your home or office.