The main sources of sauna room temperature are:
1. Electric heater: Electric heaters use electricity to heat the air, gradually raising the temperature inside the sauna room.
2. Steam: Water is often added to the sauna room, and this steam also raises the room temperature.
3. Stones: Stones are often placed inside the sauna room. They absorb heat and slowly release it, maintaining the room's temperature.
4. Fireplace: Some traditional saunas use a wood stove for heating. The burning wood releases a large amount of heat, which raises the room temperature.
