PTC heater with shell1. Configuration.TypeSpecialtyExcellenceshortcomingOthersAluminium shellAluminium shell, with wire and insulating filmFast heat conduct, large powerThe shell is electric conductor, may affect the circuit ... ℃ temperature. Main appliances: hair straightener, hair curler (crimper), wax melting heater, humidifier, water boiler, liquid warmer, coffee warmer, polymer press-coating ...