Shell and Tube Evaporator vs. Condenser
| Feature | Evaporator | Condenser |
| Purpose | Absorbs heat to boil/evaporate a liquid. | Rejects heat to condense a vapor. |
| Phase Change | Liquid → Vapor (on one side) | Vapor → Liquid (on one side) |
| Common HVAC Use | In the chiller to cool water. | In the chiller to reject heat to the outside. |
| Temperature | Operates at lower temperatures/pressures. | Operates at higher temperatures/pressures |