SD Exhaust Fan w/ Shutters 1 Speed 18 inch 3200 CFM Direct Drive S18-F1

Build Time:
4 to 6 Weeks ?
Ships By:
FedEx Ground

Build Time

The product Build Time you see represented on this site is only a typical number of days the manufacturer states it needs to build the product(s) when ordered. Build times are based on business days (excludes weekends & holidays).

The build time does not include the time it will take to ship the order to you (the customer). If an order has multiple items and comes from multiple warehouses, you may receive part of your order on one day, and then receive the remaining part(s) of your order at a later date.

*Please be aware that seasonal demand of certain equipment may cause build times to run longer than what is typical.

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Canarm / LFI’s standard fans follow a tradition of quality in design, materials and construction. All our standard fans are developed to be efficient and economically priced. Fans are available in single, two and variable speed models. All variable speed standard fans use an energy efficient variable speed, dual voltage motor and blade combination.

To determine the proper Canarm/LFI fan for your applications, use the following formula.

Number of cubic feet in room / Number of minutes per air change = Required C.F.M. Capacity



Available in 8” to 42” sizes.
Single, two and variable speed models are available.
All fans use a totally enclosed, thermally protected motor.
The rugged steel welded box housing has a durable powder coated finish.
Aluminum louver shutters are supported by long life nylon bushings
(30”, 36” & 42” have PVC louvers).
8” - 24” models have heavy wire chrome plated OSHA guards on intake side of fan.
30”, 36” & 42” models have grey powder coated guards.
All fans are shipped completely assembled.

*NOTE: The motor Full Load Amperage ratings are meant to be used as a General guideline only. The ratings are from the primary motor supplier. These amperage ratings may vary slightly if a different motor supplier is used. It is also possible that a motor manufacture may modify / improve / update a motor in which the amperage rating will change slightly.








DIMENSIONS  (inches):

a = 23-1/4" Square
b = 15"
c = 6"
d (center to center) = 22"
e = 20-3/4"
n = 4 Louvers

Model No.:
S18 -F1
New York
Exhaust Fans
Blade Material:
Heavy-Gauge Aluminum
Blade Size (Inches):
No. of Blades:
CFM High:
Decibels (dBA):
73 @ 5ft
Dimension Inches:
Width: 23-1/4" Depth: 6" Height: 23-1/4"
Drive Type:
Limited Warranty:
1 Year Limited
Motor Type:
RPM High:
Weight lbs.:
Notice: Manufacturer's products features and specifications are subject to change without notice.
California Residents: warning WARNING- This product may contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, please visit


Ask a Question
  • I have 10 of these fans and just ordered 2 more, I am wondering if you sell parts for this model S18-F1 I am looking for a new fan blade and a spare motor. Thank you

    Yes, we do have the blade and motor for this unit.  You will need to call 866.727.1060 to place the order, since these parts are not avaialable online.

  • What is the maximum operating temperature of this fan?

    This fan, like many other fans, has an ambient temperature rating of 104 degrees F.

  • What type of fan would you recommend for a 90'x30' greenhouse? Thank you, Karoly

    Since there are others questions we would have, please contact one of our knowledgeable sales team members at 866.727.1060

  • i just received this 1 speed Cananm fan and it is installed and working fine. But the directions seemed to indicate that I could put in a 2 step switch and have a high and low. The installer thought that was possible too. I would like to know if that is the case.

    The instructions most likely cover all of the S and SD series fans. This particular fan uses a 1 speed motor On / Off.  A 2 speed or variable speed controller should not be used with this fan.

  • I am about to order this Canarm single speed wall fan from you. It seems like it is one of the better built units, but is there something else you would recommend. I have a hot 3 car garage and a single speed is fine for application. Is there a simple on/off switch on the motor to turn it on and off, manual does not say. If not can a heavy duty power cord be attached to wiring instead of hard wire because I have a outlet above it in ceiling.

    The S18-F1 is a very high quality fan.  This fan does not come with an On / Off switch built in, since it is designed to be hard-wired to a switch.  Yes, you or an electrical contractor can wire a 115 volt cord / plug to the fan.