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Model AF-18-C8 | Aura Fan | 18" Diameter | 8" Tall Collar | Flat Flange | CFM: 2200

Model AF-18-C8 | Aura Fan | 18" Diameter | 8" Tall Collar | Flat Flange | CFM: 2200

AF-18-C8

843951001388

Aura Attic Fan  

Price: $587.00 USD

$587.00 USD
Sale Sold out
Shut-off Switch Options:
SOS - Simple Shut-Off Switch
TSOS - Temperature Sensor Shut-off Switch
THSOS - Thermostat/Humidistat Shut-off Switch

  • Aluminum Unpainted

    Aluminum Unpainted

  • Plain White STANDARD+$35

  • Plain Black STANDARD+$35

  • Pine Green STANDARD RAL 6028+$35

  • Quartz Grey [Weatherwood] STANDARD RAL 7039+$35

  • Terra Brown STANDARD RAL 8028+$35

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18-Inch Aura Attic Fan | Model AF-18-C8 | 2,200 CFM

The 18-inch Aura Attic Fan is 18 inches in diameter and has an 8-inch tall collar. The model number is AF-18-C8, which exhausts air at 2,200 CFM. All 18-inch attic fans have a standard 24" x 24" square flange.

This is an attic exhaust fan. It has an all-aluminum construction, making it durable and long-lasting.

Motor Type: PSC – Totally Enclosed

With 1/2 horsepower and 2,200 CFM, this 18-inch attic fan is perfect for ventilating attic spaces or plenums.

This Attic Fan also has an optional Shut-Off Switch, Thermostat, and Humidistat (THSOS).

Installation:

A collar height of 8 inches is typically used for low-slope or flat-roof ventilation. However, if installed on the upper portion of the roof, this attic fan can be used on a 0/12 to 5/12 pitch roof in all climate zones.

18-inch diameter attic fans are commercial size and should, therefore, be used in commercial settings. For those looking to ventilate their homes, please view attic fans with a smaller diameter.

The 18-inch Aura Attic 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, allowing air to flow freely.

How it works:

The exhaust fan pulls air out of the attic at 2200 cfm.

The 18-inch attic fan will remove heat and moisture from the attic during the summer and winter.

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

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Calculate number of Model  AF-18-C8  Vents Needed for a Given Area

Enter the Width and Length of the attic space you need to ventilate to calculate the area. You may also enter the area directly in the "Area" field. It is not necessary to hit the Return or Enter key (which will refresh this page), just enter numbers in the fields.

Enter width of space to calculate area (or enter Area below)
Enter width of space to calculate area (or enter Area below)

If you know it, you may enter the area directly here

The diameter size of all roof vents determines the Net Free Area, also known as the "NFA". NFA is the measured amount of opening each vent offers at each specific size. to be available for venting air through a specific vent size. The calculator below will find the overall number of vents needed to effectively ventilate the targeted attic space.

Once you have the area, the numbers shown below are the number of vents of that size which would ventilate the specified area with both 1/300 and 1/150 rule.

Results Appear Here





*Please note
The roof vent calculation values shown above are for the exhaust portion of the roof. The same amount of net free air inches is needed for air intake as well. Proper roof ventilation consists of 50% air exhaust and 50% air intake.