Circulating fans are mounted inside the building and operate at zero static pressure. They are an essential part of an agricultural operation and play an important role in livestock health and production. The air movement circulating fans provide is critical during hot and/or humid conditions because it reduces animal stress and possible production losses.
Fan efficiency is measured by the amount of air moved per watt of power (cfm/watt).
| Fan Size
| 12-23 inch
|| 11.0 cfm per watt
| 24-35 inch
|| 16.5 cfm per watt
| 36-47 inch
|| 18.2 cfm per watt
| 48-49 inch
|| 22.0 cfm per watt
| 50 inch or greater
|| 27.0 cfm per watt
2013 Minnesota Livestock Circulating Fans Rebate Claim Form
Fan-motor combinations must also meet these additional specifications:
- Tested by the Bioenvironmental and Structural Systems lab at the University of Illinois. Call Alliant Energy-IPL at 1-866-ALLIANT for qualifying models.
- Wired for 208-volt or 240-volt service.