But in cities, electric and gas heated saunas are the most practical. Although electric stoves outsell gas stoves by far, gas is three times cheaper than electricity in most parts of the country. Some times they require specific types of stoves, fire insulation, flues and chimneys. But generally, since most saunas are not used as habitual rooms, building regulations are minimal. Size of the sweat room where the heater will be placed.
Size depends on the number of bathers, the capacity of stove and bench arrangement.
Specific dimensions are discussed later. A provision for washing. In either case, plan a means of producing hot water. This can be a simple placement of wind breakers or even an open porch adjoining the sweat room. A clean, simple design using wood.