Quick electric water heater

A quick electric water heater comprises a water inlet/outlet tube, an electric heater and a controller. The electric heater is a reflux water tube heater, and a water storage barrel is arranged outside the electric heater. One end of the reflux water tube heater is connected with the water storage barrel of which the other end is connected with a water pump, and the other end of the water pump isconnected with the reflux water tube heater which is connected with a water storage tank. The water flowing on the electric heater is quickly heated and flows into the water storage barrel, the upperlayer of the water storage barrel is used for storing hot water which flows in and out the upper layer of the water storage barrel so that the hot water can be obtained since the electric water heateris turned on and the hot water is intensively stored along with the heating time. The electric water heater discharges water according to the set time, and the water is heated according to the desired water quantity, without w