You are required to provide the structural framing, insulation, vapor barrier and exterior panelling, which are all easily available at your local building supplier. Finns who immigrated to the United States centuries ago brought with them a unique bathing custom which is now only beginning to become popular here. Often confused with a steam bath, a true sauna bath is very different, even though both types of baths offer the same therapeutic benefits. The extremely low humidity present in the sauna makes these temperatures tolerable. This permits the copious amount of perspiration produced by the body to dry quickly thus having a cooling effect.
All saunas have a radiant air heater which has a container of volcanic stones.
These stones retain and radiate heat more consistently, which is why the Tylo electric sauna heaters have such a deep stone compartment. By contrast, a steam bath makes use of a steam generator. This device heats water directly, not air. The steam room enclosure fills completely with condensed vapor. Because of their very different modes of operation, the choice of construction materials is critical.