A heat exchanging device includes first and second disk members coupled together to form a disk unit having a chamber. The first disk member has an inlet and the second disk member has an outlet. At least one of the disk members has first and second connecting members coupled to the other disk member. The connecting members are arranged on opposite sides of a line extending axially through the inlet and outlet to define therebetween an inlet flow path above the line and outlet flow path below the line. A medium directing member is disposed within the disk unit. The medium directing member, the first and second connecting members and the chamber are arranged such that heat exchange media is directed to flow from the inlet, through the inlet flow path, through the chamber, through the outlet flow path, and into the outlet.