LOL

In the traditional heater, the heating elements heat the air and a mass of stones. This allows for a consistent heat and the custom of sprinkling water on the stones, which changes the environment in the sauna dramatically.

The infrared heaters have exposed heating elements, so that the heat radiates directly onto the bather in sort of a one sided fashion. These infrared heaters have a much lower capacity, so the most common complaint is that they fail to attain the heat typical for a genuine sauna, especially on the part of the body turned away from the heater.

You also sacrifice the ability to sprinkle water on the heater, and one must question whether it’s actually healthy to expose one’s self to such direct radiation, or how enjoyable such an experience is, compared to the traditional sauna.

In contrast, the traditional Scandinavian style saunas are centuries old (they were heated with wood before electricity), and their safety and therapeutic efficacy is well established.

As with tainted toothpaste, poisonous pet food and lead painted children’s toys, some of these infrared saunas are downright hazardous at least according to the Electrical Safety Authority in Ontario, Canada. See…

http://www.ofm.gov.on.ca/english/Fire%20Safety%20&%20Public%20Education/Recalls/2006/Saunas.asp

Sauna by Airwall, Inc. even recalled their saunas due to a fire hazard caused by faulty heating units and fuses. See…

http://www.lawyersandsettlements.com/case/airwall-saunas-recalled-due-to-fire-hazard-infra-red.html

Thank you
Joker