| 摘要 |
PROBLEM TO BE SOLVED: To allow an electric control of a solar water heater, without the need of power supply from the outside or installation of a power supply device by solar power generation or hot water thermal differential power generation to the solar water heater, unlike the conventional technique in which the electric control of the solar water heater needs the power supply by a cable or the like from the outside or the need of the installation of the solar water heater by the solar power generation or the hot water thermal differential power generation to the solar water heater.SOLUTION: A hydraulic generator is installed to a water inlet path or a hot water output path to the solar water heater, and the electric control of the solar water heater is performed by the electric power. Status data of the solar water heater is received/transmitted wirelessly, and the electric control is performed by the solar water heater by itself. |
