It means a device with a constant characteristic temperature coefficient. Below the critical temperature (Tc), the resistance is low and the electric flow is good, so it has the effect of increasing the initial amount of heat,
The effect that the electrical resistance increases in proportion to the temperature from the critical temperature to the melting point (Tm) is called the PTC effect,
According to the PTC effect, the insulation effect is obtained according to the remarkably increased resistance value at the melting point temperature, so useful effects such as prevention of overheating and reduction of power consumption can be realized.

In the P.T.C Heating Film, the particles of the heater themselves act as a temperature sensor and the temperature rises. Controls power consumption and prevents overheating by detecting only the current and controlling the amount of heat It is possible to realize a heating system that is more economical and safer than any other underfloor heating
P.T.C Heating Film adjusts the resistance of the film itself without a temperature controller when the temperature of the film heater changes. This is a smart heating film that automatically controls power consumption.

* General AC 220V power consumption is used

About 1 minute after power is supplied to the PTC heating film, the surface temperature has already reached 25℃ (Fig. ①)
According to the electrical resistance-temperature graph on the left, the power consumption is 220~240Watt/m2, which is almost the same level as the existing heating film.

When the film continues to heat up and reaches 40-45℃ suitable for heating, it will burn at 160-180Watts per square meter
The power consumption is reduced, and when the floor is installed, the time for the surface temperature of the PTC heating film to reach 40~45 ℃ (Fig. ②) is
It takes about 5 minutes (about 2 minutes in the case of a long board). Therefore, after about 5 minutes, it has already been reduced by 26% compared to the conventional heating film
It maintains 40~45℃ with only 160~180watt /㎡ of power.

When the temperature of the floor surface reaches 40 ℃ due to continuous heating, the surface of the floor in contact with the PTC heating film
The lower surface reaches 55℃ or higher and reaches ③ in the left graph to maintain heating at 150Watt/㎡
About 35% less than the existing heating film.