RAC

Round Around Coils

RAC

PHE Cross

Heat Recovery Plate Exchangers (PHE)

PHE Cross

HHP, VHP

Heat Pipe Heat Recovery Exchangers (HP)

HHP, VHP

RRE

Rotary Wheel Type Heat and Total Energy Recovery Exchangers (RRE)

RRE

HPHS

Heat Pipe Heat Recovery Exchangers (HP)

HPHS