Reboiler Selection Chart: VERY HEAVY PUMPTHROUGH REBOILER RELATIVELY CLEAN SERVICE FLUID FOULING CHARACTERISTICS FOULING SERVICE EXTENT OF FOULING LOW TO MODERATELY HEAVY LESS THAN ATMOSPHERIC GREATER THAN ATMOSPHERIC VERY HIGH SMALL TO MODERATE PRESSURE KETTLE REBOILER VERTICAL THERMOSIPHON PUMPTHROUGH REBOILER (CRITICAL OPERATIONS) HORIZONTAL THERMOSIPHON VISCOSITY PUMP-THROUGH REBOILER LOW TO MODERATELY HIGH AREA INTERNAL REBOILER KETTLE REBOILER VERTICAL THERMOSIPHON VERTICAL THERMOSIPHON KETTLE REBOILER SYMBOLS FOR VARIOUS TYPES OF REBOILERS HEAT MEDIUM IN VAPOR BOTTOMS FEED VAPOR & LIQUID VAPOR & LIQUID HEAT MEDIUM IN HEAT MEDIUM IN HEAT MEDIUM OUT HEAT MEDIUM OUT KETTLE REBOILER HEAT MEDIUM OUT VERTCIAL FEED LARGE FEED PUMP-THROUGH REBOILER
