风道电加热器主要是用来将所需要的空气流从初始温度加热到所需要的空气温度，最高可达850℃。已被广泛的应用到航空航天、兵器工业、化工工业和高等院校等许多科研生产试验室。特别适合于自动控温和大流量高温联合系统和附件试验。空气电加热器使用的范围宽：可以对任何气体加热，产生的热空气干燥无水份、不导电、不燃烧、不爆炸、无化学腐蚀性、无污染、安全可靠、被加热空间升温快（可控）。
The main purpose of the duct electric heater is to heat the required air flow from the initial temperature to the required air temperature, up to 850 degrees Celsius. It has been widely used in many scientific research and production laboratories, such as aerospace, weapon industry, chemical industry and universities. It is especially suitable for automatic temperature control and large flow high temperature combined system and accessories test. Electric air heater can be used in a wide range of applications: any gas can be heated, resulting in hot air drying no moisture, no conductivity, no combustion, no explosion, no chemical corrosiveness, no pollution, safe and reliable, heating space quickly (controllable).