| 摘要 |
<p>The heater has a gas burner to determine the required heat for heating the water. A controlled gas stream is supplied to gas burner over a gas valve, which is controlled by a control device (10). An alternating current is supplied from a generator into direct current, working as a source of current, for operating the device, which is integrated in a water pipeline, and generates current from the flow energy of the heated water flow, to operate the device, with a rectifier circuit (11) connected between the generators. A charging circuit (19) is provided to charge a rechargeable battery (18).</p> |
