How does Infrared Sauna Heat work?
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The Infrared Sauna offers a modern twist to an age-old experience. Traditional saunas raise the temperature of the air in order to warm the body. Infrared saunas work differently. Instead of heating the air within the enclosure, far-infrared radiant (FIR) saunas emit an infrared wavelength that heats the body. Because the rays are absorbed directly into the body, one can work up a sweat at less intense temperatures than a traditional sauna (100 - 130° F. vs. 185-195° F.) Far-infrared radiant heat is a form of naturally occurring energy that heats objects by direct light conversion.
FIR warms only the object and does not raise the temperature of the surrounding free air. To understand how infrared heat works, picture yourself outdoors on a summer day with the sun beaming overhead. Your body feels warm from the sun and you become hot. Then a cloud passes overhead, blocking out the sun. The temperature outside has not changed, but you feel cooler in the shade. Your body was being heated by the Sun’s infrared rays. Infrared heaters warm the body in the same manner as natural sunlight. Infrared emitters in the sauna emulate the infrared rays produced by the sun.
All life requires FIR heat from the sun. FIR heat is not ultraviolet radiation but a narrow band of energy within the 5 to 15 micron level. This type of energy travels 2-3" deep into the body to increase circulation and nourish damaged tissue. The sun is the primary source of radiant energy, but not all of this energy is beneficial. Sunlight also contains harmful solar radiation. Although life needs energy from the sun, too much sunlight damages the skin. FIR heat provides all the healthy benefits of natural sunlight without any of the dangerous effects of solar radiation.
FIR heat therapy uses the wavelength of the visible and non-visible light spectrum of sunlight that heats the body normally. For years, the healthcare industry recommended infrared heat lamps as a source of FIR heat but the lamps were cumbersome, extremely hot and difficult to maintain at a constant temperature. The recent development of ceramic infrared heaters created a new and convenient source of FIR heat therapy.
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