Enfab double wall heat exchangers are ideal for potable water heating systems and other applications where cross contamination of fluids is a potential hazard. Many state and local agencies now require double wall exchangers in potable water installations. All of Enfab's double wall designs meet these specifications. In addition, all Enfab double-wall units conform to ASME Code requirements.

Enfab double-wall designs are available in both the U-series configuration and the A-series configuration. All dimensions are the same and replacement bundles will fit in existing units! Enfab can also build double-wall bundles to fit in other manufacturers' shells. Double-wall units offer comparable performance to existing copper tube exchangers.