HEAT EXCHANGER AND WATER HEATER INCLUDING THE SAME

摘要

There is provided a heat exchanger and a water heater having the heat exchanger including a uniform thickness of tin plating layer on the inner surface of a water feeding pipe. The heat exchanger H includes copper pipes 8 and 10 disposed in a casing 1 as a water feeding pipe 4 and a turbulent flow generator 13 disposed in the copper pipes 8 and 10. The turbulent flow generator 13 has a copper plating layer 14 on the surface portion thereof. The tin plating layers 17 and 18 are disposed on the inner surface of the copper pipes 8 and 10 and the surface of the turbulent flow generator 13.