When shopping for an infrared sauna, heaters should be the first thing to look at. Mainly there are two types of heaters, ceramic and carbon fiber.
Generally speaking, ceramic heaters are a metallic coil inside a ceramic tube (most likely covered with another material such as Incoloy). The ceramic tube emits infrared waves when heated by the metallic coil. Because of the small heating surface area, the ceramic heaters tend to get very hot (above 380° F) in order to heat the entier sauna room. This can create hot spots near the heaters and cold spots away from the heater.
Carbon fiber heaters were developed as a solution for ceramic heaters issues. Carbon fiber heaters are thin and have a large surface area which heats at a lower temperature. Carbon fiber heaters are created by impregnating carbon ink (carbon in nanometer form) into a fiber glass sheet, which is sealed between two fiber glass sheets to eliminate any gases. The heaters do not use any glues or plastics.
Infrared is basically a light, but it can pass through light objects (e.g. clothing or skin) to a certine level. However, it cannot pass through wood. When infrared hits the wooden frame, the wood gets hot and only radiate heat (not infrared), which negates the benefits of infrared. This is why heaters with condence frames are not desired in infrared saunas. It might looks like it provides extra support, but a quality carbon heater is flexiable and does not break when someone leans on it. The wooden frame should only provide structure support and should cover the least surface space.
Far Infrared Technology
|Heating Surface Area||up to 960 square inches||up to 620 square inches||12 to 56 square inch|
|Lifetime Expectancy||100,000 hours||20,000 hours||5,000 hours|
|Emissivity Rate||96%||94%||85% - 94%
(rate will drop as
heater get hotter)
|Wavelength Range||6-14 micorns||4-22 micorns||3-18 microns|
If you still have questions about how to compare saunas or need any more details, feel free to contact us:
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