| 摘要 |
An electric boiler is provided to increase the heat exchange area by extension of the water and air conduits and the supply amount of hot water, thereby increasing the heating area and the supply amount of hot water. An electric boiler comprises a duct(32), an electric heater(34), a blower(35), and a heat exchange unit(50). The duct has an air circulating passage(33) installed on a duct body(31). The electric heater is built in the duct to be located on one side of the air circulating passage and generates heat from electricity. The blower is located close to the electric heater and circulates the air heated by the electric heater through the air circulating passage. The heat exchange unit exchanges the heated air, and water and includes an air conduit(56) through which the heated air passes, and a double pipe(54,55) including a water conduit(57) for inflow/outflow of water. |
