Aura Roof Exhaust Fan with Curb Mount Flange | CFM: 250 8″ Diameter 8″ Tall Collar | Model AF-8-C8-CMF


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8 Inch Aura Attic Fan with Curb Mount Flange | AF-8-C8-CMF | 250 CFM

The 8 inch Aura Attic Fan with Curb Mount Flange is 8 inches in diameter and has an 8 inch tall collar. The model number is AF-8-C8-CMF and exhausts air out at 250 CFM. All 8 inch gravity fans come with a standard 12″ x 12″ flange to fit over roof curbs.

Installation: For low slope or flat roof ventilation

The Aura Gravity Fan exhausts air continuously even when the motor is off. This attic fan works passively because of the Venturi Effect. When the wind blows against the outer louvers this creates an upward draft which allows air to freely flow in and out of the vent. This Attic Fan is also available with an optional Shut-Off Switch, Thermostat and Humidistat (THSOS).

The curb mount flange allows for easy installation on roof curbs of the same diameter. In addition, the curbed flange can be used as a hatch to access the ductwork below. We recommend installation on roofs with a pitch of 2/12 or less.

Motor Type: Shaded Pole C – Frame

With 1/55 horsepower and 250 CFM, this 8 inch vent is perfect for ventilating smaller attic spaces.

How it works:

Even when the motor is off, the attic fan will still ventilate passively. In other words, even the smallest breeze can create exhaust ventilation to draw air out of the fan.

This movement of air is proportional to the wind speed and is measured in cubic feet per minute (CFM). Therefore, wind speeds of 11 mph for an 8 inch attic fan produces 185 CFM of air exhaust for attic ventilation.

For any questions please see the frequently asked questions page. If you still have questions, email the sales team at [email protected] or call 845-565-7770

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A Roof Curb below would fit this 8 inch diameter product

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  • Roof Curb 12 inch Tall for 8 inch Diameter Vents or Fans

    Roof Curb (Inside Throat Diameter: 10” Outside Length & Width: 11” Height: 12”) | Model RC-8-H12

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  • Roof Curb 6 inches tall for 8 inch Diameter Vents

    Roof Curb (Inside Throat Diameter: 10” Outside Length & Width: 11” Height: 6”) | Model RC-8-H6

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Base Price (Not Including Shipping and Options):


Shut-off Switch Options:
SOS - Simple Shut-Off Switch
THSOS - Temperature and Humidity Sensor Shut-off Switch
TSOS - Temperature Sensor Shut-off Switch

Our products can be painted with a durable baked-on powder coating surface finish.
Click in a color square to choose a paint color.
Click "Premium Colors" to see the full set of color options.

Brand: Active VentilationUPC(GTIN): 843951002545 Model AF-8-C8-CMF Category:
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