Mute heating water heater with gas replaced by template

The utility model discloses a mute type plate heat exchange gas heating water heater which comprises a heater body, a combustion chamber, a main heat exchanger, a plate heat exchanger, a combustor, a proportional valve, a fan, a heating water path, a bathroom water path and a controller. An electric three-way valve is arranged between the water outlet end of the heating waterway and the plate heat exchanger; the plate heat exchanger is communicated with the bathroom waterway and can transfer heat of the heating waterway to the bathroom waterway; the water inlet end of the bathroom water path is provided with a bathroom water inlet temperature sensor, and the water outlet end is provided with a bathroom water outlet temperature sensor; and the fan is a variable-frequency speed-adjustable fan. According to the utility model, the controller can change the opening degree of the proportional valve and the air flow of the fan through matching according to the inlet and outlet water temperature of the bathroom water