COMBUSTION DEVICE

PROBLEM TO BE SOLVED: To provide a combustion device capable of improving correct combustion by automatic processing on the basis of correct evaluation even in a large disturbance occurring environment such as a strong wind and a sudden gust of wind. SOLUTION: When the CO concentration exceeds 300 ppm, a fan rotating speed is increasingly corrected. The CO concentration D1of correction time Ta and the CO concentration D2of Tb just after its correction are stored. When the CO concentration D3of time Tc becoming a balance state after the correction is higher than 300 ppm, availability is determined on the setting of the correction in Ta to the UP side without taking the influence of disturbance into consideration. The fan rotating speed is decreasingly corrected only when D2becomes higher than D1, and when the D2becomes lower than D1, an UP correction is made again. COPYRIGHT: (C)2006,JPO&NCIPI