| 摘要 |
PROBLEM TO BE SOLVED: To provide a technology capable of rapidly eliminating a high temperature stable condition at a heating apparatus for changing-over a non-combustion heating operation and a combustion heating operation in response to a measured temperature of heat medium.SOLUTION: A heater device disclosed in this invention is constituted in such a way that control means operates a combustion device when the combustion device is stopped and a measured temperature at a heat medium temperature sensor is less than the first ignition temperature lower than a heating set temperature, stops the combustion device when the combustion device is being operated and a measured temperature at the heat medium temperature sensor is more than the first extinguishing temperature higher than the heating set temperature, and stops the combustion device when the combustion device is being operated and a state where the measured temperature at the heat medium temperature sensor exceeds the second extinguishing temperature continues for a predetermined period. The second extinguishing temperature is more than the heating set temperature and lower than the first extinguishing temperature.SELECTED DRAWING: Figure 2 |
