Air King 9166 20 Inch 3560 CFM Whole House Window Mounted Fan with Storm Guard Housing from the Window Fans Collection

- Item #: BCI441363

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Personal comfort is something that no one should have to sacrifice during those sweltering summer months, and with Air King's 9166 whole house window fan, you'll find yourself cool and relaxed no matter what the outside weather might be. Featuring both intake and exhaust functions, stale, recirculated air becomes a thing of the past; the Air King 9166 is specifically designed to move stale air out of your home, and replace it with fresh, outside air, simultaneously keeping you cooler while also helping to maintain a clean, breathable atmosphere. Best to open all of the windows in the house only an inch and turn it to exhaust and on high.


  • Front Mounted Rotary Switch Controls
  • Impact Resistant Plastic Housing
  • Powder Coated Steel Front Grill and Blade
  • 3-Speed Motor with Fully Enclosed, Permanently Lubricated Ball Bearings
  • ETL and OSHA Compliant
  • Includes Innovative Storm Guard® System
  • Assembled in America

Product Technologies:

  • Storm Guard® System: Air King's innovative Storm Guard® housing system allows you to shut the window behind your fan during unexpected bouts of bad weather without having to physically remove the fan itself. Whether closing the window to keep the rain out, or securing your home when you leave, Air King's Storm Guard® system offers both convenience and comfort in one package.


  • Blade Size: 20"
  • CFM: 2510 - 3560
  • Window Size Requirement: 27" to 38" Length x 26.25" Height
  • Dimensions: 26-3/4" Length x 11-1/4" Width x 26-1/4" Height
  • Motor: 3-Speed, 1/6 Horsepower, Single Phase
  • Power Cord: 7' Black 3-Conductor SJT Type
  • Weight: 36.6 Lbs.
  • Volts: 120

In the Box:

  • Assembled Window Fan-Includes Storm Guard® Slider Panels
  • Mounting Wood Screws
  • Instructions Sheets

Product Variations:

  • 9155: 2470 CFM, 16 Inch Fan Blade Model
  • 9166: This Model

Looking for a company that strives to provide superior manufacturing quality, products with exceptional value, and remarkable customer service? Look no further than Air King. After 40 years of undertaking a solemn mission to make your home a healthier, more comfortable place to live, Air King still believes that a house can be so much more than just the place you hang your hat—it can be your sanctuary from the turmoil of the outside world. With the right products, you can begin to build that sanctuary, and Air King is proud to work with you every step of the way.

Additional Air King Links

Our SKU: Air King 9166

This product is listed under the following manufacturer number(s):

  • Air King 9166

*Denotes a finish or option that has been discontinued

Product Videos

  • Review of the Air King 9166 Window Fan
    Our media team shows you the benefits of the 9166 window fan by Air King!

Installation Resource Center

Whether you are installing the product yourself or hiring a professional, our installation Resource Center has everything you need to get your project done. Visit the Installation Resource Center to get started.

Air King 9166 Reviews

Rated 5 out of 5 by from Highly Recommend This fan fit like a glove into my window w/o the sides. I put a small strip of carpet on the window seal under the fan, but it probably isn't necessary. I installed an L bracket on each side at the top to hold it in place. This thing works great. I put it upstairs in the guest room and opened the windows on the opposite side of the house downstairs, and it brought my thermostat down 10 degrees in 10 mins. You don't even need it on high. Obviously this was during the cool evening nites, but it works just like an attic fan, and I can remove the fan as necessary with just 2 screws. It does exactly what I wanted it to do. I highly recommend it, as an option to an attic fan, which I didn't have space for anyway, and the install is much easier, faster, and cheaper overall. I love it.
Date published: 2012-07-04
Rated 1 out of 5 by from Surprised ATTENTION: I was very unhappy with the window fan I purchased from Venting Direct. It was noisy. You can't take it apart and clean it, it did not fit well in the window and the rubber inserts kept falling out. I was so mad I wrote a negative comment on THIS site!! OUT OF NOWHERE, the customer service person, "Angie" contacted me and was very helpful. She offered either a replacement or a refund. She took me at my word, did NOT try to make excuses or deny the faulty product. All this was done IMMEDIATELY. This is a RARE situation folks! I think this is the IDEAL way to "do business." Although I still feel the same way about the fan, the company Venting Direct is HONEST, professional, and care about the customers. Whenever I need another product I will certainly purchase from Venting Direct.
Date published: 2011-08-31
Rated 5 out of 5 by from Very Nice Whole House Fan The quality of the fan, wire shield, and plastic shroud is excellent. The reversible feature is also a huge plus. Noise: This is not a family room fan. I would mount it in a window in room that is less frequently used. We have second story room over the garage, it is mostly a play room, and the kids don't mind the fan noise when playing XBOX. On the lowest setting the noise is okay, this is the setting most used whether the kids are in the room or not. Mounting: Designed for a double-hung window. But I mounted it in removable slider window. I used MDF boards to as a border and mounted the shroud to the MDF frame, then secured the MDF frame to the window casing with a few drywall screws. I removed the screen and can still close the slider portion of the window when the fan is not in use. Only draw back is to remember to open the window before using the fan (had to teach the kids to do this). I will use this fan in the summer time and probably will store it in the winter. Moves air enough to keep the house cool in two-story, 3700 sq. foot home. Probably a little small, but the air movement is much better than just opening the windows. I live in Northern California, summer temps have been in the high 90's and low 100's. At night the air temp has been cooling off and the fan works great!
Date published: 2012-08-02
Rated 5 out of 5 by from Awesome! Best home improvement ever. This fan does a terrific job of exhausting the hot air out of our home. What the mfg doesn't tell you is how to use it most effectively. We open all of the windows in the house only an inch and turn it to exhaust and on high. You can feel the cool air rush into the house as the hot air is sucked out. Later we put it on intake and open everything up. It is installed in a horizontal sliding window. We had to have a casing built for it as it is not designed for that type of window. We can still close the window and will take it out once we get past the hot season. The screen is attached to the outside window casing rather than being in its track. (You need the screen or big crawly things can come in.)
Date published: 2012-09-19
Rated 5 out of 5 by from Great fan I have installed typical whole house fans and they are complicated and expensive. You have to cut a hole in the ceiling, provide power to the site, assure adequate attic ventilation to accommodate the cfm, and then you have a gaping hole in your attic insulation to deal with. This sweet little unit, placed in an upstairs window, does the job with an installation consisting of 4 screws. And in the fall you take it out of the window and store it for next summer. I have the 20" unit and it evacuates all the hot air from my old 1890's farmhouse in less than 5 minutes. Both of my sons now have one in their homes based on witnessing my unit in action. Highly recommended.
Date published: 2011-07-24
Rated 5 out of 5 by from Air King 20 inch Fan Before purchasing this whole house fan, I read the reviews of others. Most were satisfied with the fan, but one common issue was fan noise. After compleing the simple installation, I was pleasantly surprised. All fans make noise -- they have to to move the air. This fan was quieter that I expected, and quieter than any windown installed fan we have used in the past. The rubber supports for the frame and the frame support screws, once installed, provided vibration free operation. The fan blade and motor also appear to be very well balanced. Excellent fan, I recommend it to anyone looking for a window mounted whole house fan.
Date published: 2012-05-22
Rated 4 out of 5 by from Old school solid fan Nice American made fan, very solid and heavy duty with a few updated design features. Really effective at moving air and the lowest speed setting may be TOO strong/loud for smaller homes or apartments. I Found three loose rubber parts in the box when I opened it up, took a while to figure out they were dampers for the adjustable side wings. The manual badly needs updated and rewritten. I was able to use this in a window that does NOT open the minimum height of 26.5 inches (I only have 21") While a few inches of upper blade are blocked by the sash the fan still powerfully exhausts air in my small (800 sq. ft.) apt. I would strongly recommend.
Date published: 2008-07-10
Rated 4 out of 5 by from Economical whole house fan When our fan arrived, it was bigger than I had expected and just fit in the window to fill the opening. It moves air much more efficiently than the 18-inch table fan that we had been using in front of that window and isn't much noisier. We also don't have worry about cats getting in front of it. Not only can we close the window in front of it when it gets hotter outside or it rains (like last night's thunderstorm), but the blinds also slide down to shade it and the room (the window is south facing). We get the same functionality as an attic mounted whole house fan without the hole in our ceiling. We recommended it to a friend who says she didn't have to turn on her air conditioning during the recent heat wave.
Date published: 2012-07-24

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