Kiln

A kiln, comprising:

• a stove, including a cavity and an entry;
• a combustion device disposed in the stove and including at least one burner and an infrared ray generation assembly, wherein the at least one burner includes a flame outlet, and the at least one burner is adapted to burn gas to generate flames through the flame outlet;
• the infrared ray generation assembly is corresponding to the flame outlet and is heated by the flames generated by the at least one burner to generate infrared ray;
• a thermometer disposed in the cavity to detect a temperature inside of the cavity;
• a flow rate regulation device which communicates with the at least one burner and is controlled to adjust a gas flow output to the at least one burner;
• and
• a control device, electrically connected to the thermometer and the flow rate regulation device, wherein the control device controls the output gas flow via the flow rate regulation device based on a setting temperature and the temperature detected by the thermometer so as to keep the temperature in the cavity at a constant temperature.