Carbon Fiber Infrared Heaters 1.800W for 15m2 2.high efficiency up to 99% 3.energy saving,comfort,safe Carbon Fiber Infrared ... 50% energy saving more than other heaters, 30% thermal transition higher than other heaters.Features: Carbon fiber heating panels, new technology, ... dissipation, super large heat areaStandard design, internal use of carbon fiber heating panel, out shell is made of aluminum ...