What is a sauna?

•  Finnish steam bath in which the steam is produced by pouring water over heated rocks,bathhouse or room for taking such a steam bath. 
• A dry heat bath.
• A room or an enclosure for taking a dry heat bath 

What are the different types of saunas?

 Infrared lamp saunas use incandescent infrared heat lamps for heating.  They emit mainly

near infrared, some middle infrared and perhaps a tiny amount of far infrared energy.  They

also emit a small amount of red, orange and yellow visible light, providing warming and

stimulating color therapy.  These colors may assist the eliminative organs.

Far infrared saunas use ceramic or metallic elements for heating that mainly emit in the

far infrared range.

Conventional saunas may be electric or wood fired and usually include rocks, which may have

water thrown on them to create steam.

Most saunas are made from wood.