Temperature control apparatus for a heater using an encoder switch and method thereof

A temperature control method for a heater using an encoder switch that controls an indoor temperature by driving a burner in accordance with a change of an indoor temperature and ventilating heated air indoors, the method comprising the steps of:

• converting a temperature set by a user into a digital signal of a predetermined number of bits through the encoder switch and inputting the digital set temperature;
• sensing the indoor temperature changed in real time through a thermistor and inputting the sensed indoor temperature;
• comparing the indoor temperature inputted in real time with the digital set temperature inputted from the encoder switch, and driving the burner if the indoor temperature is lower than the set temperature by less than a predetermined temperature T1;
• checking and displaying various kinds of error modes occurring while the burner is driven;
• stopping the driving of the burner if the indoor temperature rising according to the driving of the burner is high than the set temperature by more than a predetermined temperature T2;
• and
• maintaining the indoor temperature uniformly with the set temperature by sensing the indoor temperature dropping according to the stop of the driving of the burner, driving the burner if the indoor temperature is lower than the set temperature by less than a predetermined temperature T1, and stopping the driving of the burner if the indoor temperature rising according to the driving of the burner is high than the set temperature by more than a predetermined temperature T2.