Sun Stream Infrared Saunas is the ONLY Infrared sauna company to provide thermal imaging evidence of our heaters’ superior Infrared heat output. Forget the mumbo jumbo marketing claims from other sauna companies and see the Infrared heat output from our Sun Stream ‘Nano-Carbon’ heaters. Sun Stream’s shoulder height heaters’ direct MORE Infrared heat at your body than competitors’ taller and weaker heaters. (Thermal imaging video filmed with the FLIR E75 camera. Temperature data extracted from image with the FLIR Thermal Studio software.)