Gas water heater and control method thereof

The invention discloses a gas water heater and a control method thereof. The gas water heater comprises a shell, a water inlet pipe and a water outlet pipe, wherein the shell is provided with a water inlet pipe and a water outlet pipe; the combustor is used for combusting fuel gas; the heat exchanger is used for water flowing heat exchange; the inner circulation module comprises a circulation pump, a first water storage container and a bypass pipe, and the first water storage container is connected between the circulation pump and the bypass pipe to form an inner circulation path; the electric heating module comprises an electric heating component and a second water storage container, and the electric heating component is configured to be electrified to heat water in the second water storage container; wherein the internal flow path is connected with the heat exchanger to form an internal circulation flow path, and the second water storage container is connected between the heat exchanger and the water outlet