Attic Exhaust Fan Control Type Thermostat Blade Material Aluminum Exhaust Airflow @ 0.000 in SP 1 860 cfm Fire Safety Shut-Off No High-Efficiency Motor No Housing Material Aluminum Includes Humidistat No Includes Shutter Yes Includes Thermostat Yes Maximum Attic Area 2 300 sq ft Motor Horsepower 1/15 hp Mounting Location Gable Nameplate Voltage 120V AC Overall Height 21 1/4 in Overall Length 8 in Overall Width 21 1/4 in Dome Shape Not Applicable Dome Width Not Applicable