Combo heater long term use will not generate stifling people feel and weigh security design, safe and reliable, automatic protection against overheating, no noise, long service life. Two-heater made of high quality materials, the color is greyish white, oblong design. Two in one heater uses advanced quartz tube heating element, heating elements with high thermal efficiency, heat quickly and evenly, without oxygen. Two in one product suitable for use in small spaces such as bedrooms, dens, hotels.