HOT-WATER HEATER MANUFACTURING METHOD AND HOT-WATER HEATER MANUFACTURED BY THE SAME

摘要

Provided is a hot-water heater manufacturing method capable of obtaining stable heat exchange characteristics by applying a moderate contact surface pressure between heating-medium circulating tubes and heater members that constitute a hot-water heater, and capable of improving the reliability by enhancing the joint strength between the heating-medium circulating tubes, with a simple and easy manufacturing process.