Condensing wall -mounted gas boiler

The utility model discloses a condensing wall -mounted gas boiler, including furnace frame, heat exchanger, water pump, gas valve body and the water valve body, heat exchanger, water pump, gas valve body and water valve body disposed on furnace frame surperficial and with furnace frame fixed connection, last water cavity, water inlet and the delivery port of being provided with of heat exchanger, be provided with the inlet tube on the water pump, be provided with the outlet pipe on the water valve body, inlet tube and water inlet threaded connection, outlet pipe and delivery port threaded connection, inlet tube, mistake water cavity and outlet pipe communicate in proper order, be provided with the combustion chamber in the heat exchanger, be provided with the combustor on the combustion chamber, combustor and gas valve body intercommunication, the heat exchanger bottom is provided with heat transfer fin and condenser pipe, the utility model discloses overall structure is little, heat transfer area is big, the thermal efficiency is high, simple to operate.