What it sauna? Sauna is a small room that is heated to temperatures between 150°F and 195°F (65°C to 90°C). It’s a tradition historically linked to Finland, where pits dug in the sides of slopes were heated with fireplaces, hot stones, and steam. Luckily, it’s possible to build one of these cozy relaxation rooms at home without digging a hole in the side of a hill. The tension-easing relief a sauna offers will give you a new life. Anyone who builds or buys a sauna thinks firstly of its design. Not without reason: You want to feel comfortable, to relax and unwind, but just as important as the furnishing of the sauna is for the well-being that arises, so is the associated sauna. A modern, electric sauna provides a pleasant temperature in the sauna, gates and/or a ventilation system for fresh air. Both a sauna and the ventilation system deliver constant power only if they are controlled accordingly. This task is performed in a sauna. You can either buy a control unit to ...