A gas water heater

The present invention discloses a gas water heater, comprising: a combustion chamber, the combustion apparatus is provided with a lower portion thereof; a heat exchanger disposed in the combustion chamber, located above the combustion apparatus; first water inlet pipe, with the heat exchanger inlet communication; second water inlet pipe, which is disposed below the combustion chamber; outlet pipe, one end of the heat exchanger outlet in communication, the other end is provided with a first temperature sensor; storage means is provided in the combustion chamber, comprising a micropump and a water storage container, the storage container is provided with a second temperature sensor; micropump communicates through a first pipeline and the other end of the outlet pipe, and communicates at a first flow rate control valve is provided, via a second pipeline and communication with the second inlet conduit. High pressure spray apparatus, comprising a plurality of nozzles and create pressure means, create pressure means in communication with second water inlet pipe, connected to the pressure made by a plurality of high-pressure line a plurality of nozzles, a plurality of spaced nozzle opening in the heat exchanger, and more ejection direction of nozzles vary.