The two most common materials used in far infrared heaters are ceramic and carbon. (infraredsauna.com)
A full spectrum infrared heater emits all three infrared wavelengths: near (IR - A), mid (IR - B) and far infrared (IR - C). (infraredsauna.com)
The majority of infrared heaters used were ceramic and metal, with ceramic being the preferred type because of higher infrared efficiency and infrared output. (infraredsauna.com)