HC

HEAT TRANSFER UNITS HAVING BATTERIES OF TUBES TRANSVERSELY ARRANGED IN AIR CHANNELS FORMED BETWEEN CLOSELY-SPACED METAL STRIPS SUPPORTED ON THE TUBES WHEREBY A FLUID PASSAGE THROUGH THE TUBES IS DISPOSED IN HEAT EXCHANGE RELATIONSHIP WITH A FLUID PASSAGE THROUGH THE AIR CHANNELS FOR USE IN COOLING WATER, GAS, AND/OR OIL INVOLVED IN THE OPERATION OF ALL KINDS OF HEAT-CREATING EQUIPMENT, SUCH AS GAS, GASOLINE, AND DIESEL ENGINES, FLUID COMPRESSORS, AND IN CONDENSING STEAM AND PETROLEUM VAPOR