| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a solar heat water heater which can be dealt with any auxiliary heat source without complication of execution at a site even when the heat source is thereafter mounting. SOLUTION: The water heater comprises a solar heat collector 2, hot water storage tank 1 connected to the collector 2 via a circulation pipe 5, and water supply pipe 7 for draining hot water from the tank 1. A bypass pipe 8 branched from the pipe 7 is further branched, and connected to different constant temperature hot water and water mixing valves 12. A hot water supply pipe 9 is connected to a three-way valve 10 at a downstream side of the tank, branched to two ways, and connected to the valve 12. Thus, a difference is provided at set temperatures of the two valves 12, and the opening direction of the valve 10 is selected according to hot water temperature in the tank 1.</p> |
