... stainless steel shell, self controlling heater, long life, easy to assemble. Configuration.TypeSpecialtyExcellenceshortcomingOthersTransflux heaterWater transflux hole ... , ducking bath, footbath, washing hand, vegetable and dish. PTC water heater for drink warmer and boiler, vapor generater, detailed introduction can ... twice or decrease of 1/2, for the same PTC heater.