| 摘要 |
<p>PROBLEM TO BE SOLVED: To maintain a combustion heating means of a hot water heating apparatus having a hot water storage type heat exchange can body at a constantly stable combustion state even when a secular change occurs. SOLUTION: The hot water heating apparatus is brought into a state that input and output of heat are not effected (S1, S2) on a condition that storage hot water is in a cooling state by a can body thermistor. First, a maximum combustion amount (No.9. 9) is inputted and set and burnt, a first temperature increasing time t1 required for an increase from a measurement starting temperature to a measurement completion temperature is detected (S2-S8), and an actually consumed fuel consumption amount Q1 is computed based on the t1 (S12). Thereafter, a minimum combustion amount (No.6. 7) is inputted and set and burnt and a second temperature increasing time t2 is detected in a similar manner (S13-S17), and an actually consumed fuel consumption amount Q2 is computed based on the t2 (S22). A relation (a combustion condition) between an input number initially set based on the Q1 and Q2 values and a fuel amount is corrected (S22).</p> |
