A heat exchanger includes an aluminum member coated with a resin. The resin-coated
aluminum member may be formed as a constituent part, e.g., a heat transfer member,
a heater core, or the like, of the heat exchanger. In such heat exchangers, the
aluminum member is connected to other resin-coated aluminum members by fusing the
resin. Energy consumed during the connection of the aluminum members of the heat
exchanger may be effectively reduced, and the manufacturing cost of the heat exchanger
may be reduced, compared with that of heat exchangers made according to known methods
that use a brazing filler metal.