PTC heater, self controlling heater, long life, easy to assemble. Configuration.TypeSpecialtyExcellenceshortcomingOthersTransflux ... , footbath, washing hand, vegetable and dish. PTC water heater for drink warmer and boiler, vapor generater, detailed introduction can ... product.For getting higher power, let water flowing or convection, ensure compact assembling, and using high heat-conducting materials ...