BioSari Marble Infrared Heater MarboThermic® Technology Efficient and economical thanks to the long-lasting heat storage function, the BioSari Marble Infrared Heater provides cosy warmth on cool days. While ??torage??heaters have been around for a long time, the BioSari heater is a breakthrough in portable heating technology. Featuring Mongolian marble cut into slices and embedded with heating elements, this makes it the most efficient heating device on the market today in terms of radiant heat emitted...30% more far infrared rays than any other type of heating elements. ...