| 摘要 |
PROBLEM TO BE SOLVED: To provide a hybrid hot water supply system capable of enhancing energy efficiency in a whole system.SOLUTION: A hybrid hot water supply system 1 includes: control means 30 for selecting one of a first heating operation for heating water in a tank 8 by first heating means (heat pump device 2), a second heating operation for heating the water in the tank 8 by second heating means (boiler 3), and a combination heating operation for heating the water in the tank 8 by the first heating means and the second heating means; and water temperature and water amount detection means for detecting the temperature and amount of the water in the tank 8. In the first heating means, energy efficiency decreases as the inflow water temperature increases, and also, the time required from startup to a rated operation state is longer than that in the second heating means. The control means 30 performs determination based on a detection result of water temperature and water amount detection means when selecting one of the first heating operation, the second heating operation and the combination heating operation.SELECTED DRAWING: Figure 1 |
