The invention discloses a control method of a supercharged gas
water heater and the gas
water heater. The gas
water heater comprises a
combustion cavity and a gas inlet pipeline communicating with thecombustion cavity, a
waste gas discharge pipeline is arranged on the
combustion cavity, a
turbine device is arranged in the
waste gas discharge pipeline, a supercharging device and a
gas pressure detection device are arranged on the gas inlet pipeline, the
turbine device is connected with the supercharging device, the gas water heater controls the
waste gas flow direction according to pressure value, detected by the
gas pressure detection device, of gas, through the
turbine device, the supercharging device is driven / closed, and the gas is supercharged / stopped supercharging. According to the gas water heater,
kinetic energy and
thermal energy of waste gas can be recycled, when it is detected that
gas pressure is low, gas is supercharged, the gas
inlet pressure and stability are ensured, itis ensured that the optimal
combustion working condition is matched, the water outlet temperature and stability are ensured,
energy consumption and cost are reduced, and the user
bathing experience can be greatly improved.