Forced Draft vs. Induced Draft (Closed Circuit)
| Feature | Forced Draft (V-Flow) | Induced Draft (Typical) |
| Fan Location | At air inlet (bottom/side) | At air discharge (top) |
| Air Pressure | Positive inside tower | Negative inside tower |
| Airflow Path | Horizontal across coil | Vertical through coil |
| Fan Energy | Fan handles cooler, drier air | Fan handles warm, saturated air |
| Maintenance | Fan & motor are accessible at ground level, in dry air stream. | Fan & motor on top, exposed to corrosive exhaust plume. |
| Spray Drift | Slightly easier to control | Requires efficient eliminators |