1、电加热管采用外绕波纹式不锈钢带，增加了散热面积，大大提高了热交换效率。

1, the electric heating pipe adopts the outer wound corrugated stainless steel belt, which increases the heat dissipation area and greatly improves the heat exchange efficiency.

2、加热器设计合理，风阻小，加热均匀，无高、低温死角。

2, the heater is designed reasonably, the wind resistance is small, the heating is uniform, and there is no high and low temperature dead angle.

3、双重保护，安全性能好。在加热器上安装了温控器、熔断器，可以用来控制风道空气温度超温和无无风的情况下工作，确保万无一失。

3, double protection, good safety performance. A thermostat and a fuse are installed on the heater, which can be used to control the air temperature of the air duct over mild and no wind.