Bathroom Fan Ratings - Code Compliance Brief
Overview:
If the bathroom fan is part of the whole-house mechanical ventilation system (WHMV), there are code provisions that should be verified during plan review and field inspection depending upon codes enforced in your jurisdiction.
Plan Review:
- Review fan specifications meet cfm and cfm/W (efficacy/energy efficiency)
2012 IECC, Table 403.5.1
- Verify all fans that are part of the WHMV meet efficacy requirements
Field Inspection:
- Confirm fan(s) meet the approved efficacy (matches what was plan reviewed)
Note: the cfm/W might not be shown on the fan (label), refer to technical specifications.
Technical Validation(s):
Building Energy Codes Program -
Code Note - Residential Fan Efficiency
http://www.energycodes.gov/sites/default/files/documents/cn_residential_...