The far infrared heater circuit is shown in the figure. The electric heater integrates radiation and convection, and the interior is a high-efficiency aluminum alloy heat-dissipating fin with strong radiation capability and large radiation area. The electric heating film is used as a heating material. It is mainly heated by means of far infrared radiation and heat convection. The negative ion function keeps fresh air from time to time. Plug-In Connecting Terminals,Insulated Spade Terminals,Cable Connector Double Spade Terminals,Vinyl-Insulated Locking Spade Terminals Taixing Longyi Terminals Co.,Ltd. , https://www.lycopperlugs.com
In the figure, the input voltage is 220V; S2 is the power selection switch, S1 is the motor switch; EH1 and EH2 are the heaters.