Are the two heating methods the same for the foot bath? Does aluminum alloy PC heating tube and PTC heating mean the same?

Aluminum alloy heater is a new type of heater specially designed for moisture-proof and dehumidification of electric equipment. PTC heater is a heating device designed by using constant temperature heating PTC thermistor constant temperature heating characteristics. In small and medium power heating occasions, PTC heater has constant temperature heating, no open flame, high heat conversion rate, minimal influence by power supply voltage, and long natural life. .