| 摘要 |
<p>Hot water supply system comprises a water input nozzle (12) connected to a cold water line (13) so that water flows at a low temperature through the heating body of a water heater (1), is heated and then flows through the nozzle. A return flow water line (2) is connected to a water outlet nozzle (14) of a water heater at the front end. A thermostat (31) controls the temperature of the water in the return flow line whilst a time pre-adjusting unit (32) controls the thermostat. A pump (4) is arranged on the return flow water line and is controlled by the thermostat of a main control (3). Preferred Features: The water heater supplies hot water having an adjusted temperature by controlling the main control. The adjusted temperature can be changed by a control unit (7).</p> |
