| 摘要 |
PROBLEM TO BE SOLVED: To provide a technology capable of eliminating an influence of erroneous determination regarding the length of an air passage in a combustion device.SOLUTION: This specification discloses a combustion device. In the combustion device, a controller can execute processing for determining the length of an air passage based on a detection result by detection means when a fan is operated. In the case where the determination result of the length of the air passage is not retained, the controller is configured so as to execute processing for determining the length of the air passage before the ignition of a burner, and retains the determination result of the length of the air passage acquired in the processing. In the case where the determination result of the length of the air passage is retained, the controller is configured so as to execute the processing for determining the length of the air passage after the extinction of the burner, and in the case where the determination result of the length of the air passage acquired in the processing is different from the retained determination result, it discards the retained determination result. |
