Self-Regulating, automatic constant temperature heating, not depend on the thermostat
Never glowing red, don't burn the halogen-light, safe and reliable
Heating quickly,higher in heating efficiency
Anti-oxidation, corrosion resistance,survive 15 times longer than the heating wire
For Flow through PTC Water Heater, water flow through middle flow channel, PTC Heater directly heat flow water. Two available designs are single-pass and multi-pass systems.