Positive temperature coefficient thermistor heat generator

A heat generator comprising:

• a high output heating element for heating an object;
• a temperature controller thermally coupled with the object and connected to the high output heating element to deenergize the high output heating element when the object reaches a target temperature;
• and
• a positive thermal coefficient thermistor being connected to the high output heating element and the temperature controller and thermally coupled with the object so that the high output heating element and the positive thermal coefficient thermistor jointly heat the object, the positive thermal coefficient thermistor being formed so as to reduce an amount of power consumed by the positive thermal coefficient thermistor when a temperature of the positive thermal coefficient thermistor is within a temperature control region and to maintain the object at the target temperature even when the high output heating element has been deenergized by the temperature controller in response to the object reaching the target temperature.

A method of heating an object, the method comprising the steps of:

• supplying power to a high output heating element and a positive thermal coefficient thermistor each thermally coupled to the object so that the high output heating element and the positive thermal coefficient thermistor jointly heat the object;
• damping power consumption of the positive thermal coefficient thermistor when a temperature of the positive thermal coefficient thermistor is within a temperature control region;
• stopping a supply of power to the high output heating element when a temperature of the object reaches a target temperature;
• maintaining the object at the target temperature by continuing the supply of power to the positive thermal coefficient thermistor.