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18" Heavy Duty Exhaust Fan

Quick Overview

This exhaust fan requires adequate air intake area.

This MaxxAir 18" Industrial Exhaust Fan is a powerful fan that can be used in garages, barns, greenhouses, and a variety of other locations. The fan is well suited to ventilate many types of substances from dust to humidity, excluding hazardous chemicals or fumes. The fan has 2 OSHA-compliant features including a safety grille and a fully enclosed, thermally protected, PSC energy efficient motor. The exterior shutters close tightly to prevent a draft when not in operation and open automatically when powered on. The housing is made of galvanized steel which prevents rust and has pre-drilled holes for easy mounting. Rolled flange edges offer handling protection during installation.

The product is backed by a 1 Year Limited Warranty.

  • Totally enclosed energy efficient thermally protected PSC motor
  • Flange has pre-drilled holes for easy installation
  • Rolled flange edges for handling protection during installation
  • Quickly removes unwanted odors and humidity
  • Integrated precision formed exterior shutters prevent drafts from entering through the external opening
  • Shutters open and close automatically
  • Balanced 4-blade fan assembly totally enclosed for protection & OSHA compliance
  • Housing constructed of durable 20-gauge rust-resistant galvanized steel
  • OSHA compliant removable interior grille
  • May be used with the Adjustable Thermostat with Firestat™ (Model No. XXFIRESTAT)
  • Fans do not come with electrical plugs. Requires wiring to your building's electrical system.
  • 1-year limited warranty
Instructions General Operating Instructions

Wiring Instructions
Sales Sheet IF Fan Sales Sheet
Primary Color Mill
Secondary Color None
CFM Up to 3000
Motor Details 1-Speed Fully Enclosed PSC Motor
Motor Specs 120V / 60 Hz / 5.34 Amps / 640 Watts / 1100 RPM / 3/10 HP
Dimensions 21" x 21" x 13" (Overall); 20.75" x 20.75" (Rough-In Opening)
Unit Weight 36 LBS
Box Dimensions 25" x 15" x 28"
Warranty 1-Year Limited
Listings None
Associated Brands MaxxAir
Alias SKU(s) IF18
Single Product UPC No
Multi UPC Info IF18: 047242642469; 047242642551 (QTY 12)
IF18UPS: 047242642520; 047242990034 (QTY 12)
Country of Origin - Assembly US from Domestic and Imported Components
Other Details Requires 6.5 sq ft of NFA

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18" Heavy Duty Exhaust Fan is rated 5.0 out of 5 by 1.
Rated 5 out of 5 by from Works better than expected!! I recently built a 30' x 48' metal building and put the epoxy on the floor which caused a serious moisture issue. I purchased the IF18 fan and installed it in the gable on my building. I turned it on at 7pm and by 7am the interior of the shop was completely dry! My floors looked like someone sprayed them with a water hose and this fan completely removed all the moisture within 12 hours, I would highly recommend this fan to anyone. The product was assembled very well, runs quiet and performs flawlessly. I'm going to add the Duostat that Ventamatic offers to accent the fan as I live in Jacksonville Florida where both temperature and humidity can be a challenge.
Date published: 2018-01-22
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Are You Ordering a Replacement Part?

If you are ordering a replacement part and are unsure about your part number please call our Customer Service Department toll-free at 800-433-1626 to speak with our friendly customer service representatives who can assist you in purchasing the correct item.

Please note that replacement parts are only intended for use with products manufactured by Ventamatic, Ltd. Use or installation of parts outside of Ventamatic products are at the customer's discretion and may void any warranty extended on the part. Ventamatic is not responsible for issues arising from parts used or installed outside of Ventamatic products. 

Improperly ordered items are subject to a 25% restocking fee.

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Because of our ongoing commitment to the development and manufacture of high quality products, product specifications are subject to change without notice.