Model # CX24BDM-2SPD

Internet #203931021

Cool Attic 24 in. Belt Drive Whole House Fan with Shutter
0047242542226

Cool Attic

24 in. Belt Drive Whole House Fan with Shutter

  • Designed for houses with 1200 to 1800 sq. ft. attics
  • Reduces cooling costs to keep your house comfortable
  • 4-blade aluminum fan assembly provides quiet performance
$ 233 39
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Frequently Bought Together

Frequently Bought Together

Product Overview

  • Designed for houses with 1200 to 1800 sq. ft. attics
  • Reduces cooling costs to keep your house comfortable
  • 4-blade aluminum fan assembly provides quiet performance
The cool attic 24 in. belt drive 2-speed whole house fan is designed for houses with 1,200 to 1,800 sq. ft. attics. It offers an efficient way to reduce cooling costs, while keeping your whole house more comfortable. It works by pulling fresh air in from the outside and expelling the warm air up into the attic and pushing it out through your attic exhaust vents. This unit requires a minimum of 8-10 sq. ft. of net free exhaust vent area to perform quietly and efficiently. Dual, self-aligning ball bearing mechanisms, and precision-balanced 4-blade aluminum fan assembly, contribute to quiet, reliable performance and longevity.
  • 2-speed, 1/3 HP, thermally protected PSC motor
  • CFM high and low ratings at 4600 and 3200
  • Joist-in and joist out installation option
  • White, powder coated, ceiling mount, automatic shutter with 95% plus closure
  • Decor-style, dual on/off high/low function white wall switch included
  • Steel venture for durability
  • Rough opening: 26 in. x 28 in. - outside shutter dimensions: 27-3/4 in. x 29-3/4 in.
  • UL/CUL listed
  • 10-year limited warranty
  • Whole house fans are designed for ceiling mount installations only, please do not purchase a whole house fan if you are seeking a fan for wall exhaust use
  • Click here for more information on Electronic Recycling Programs
  • California residents see Prop 65 WARNINGS

Product Overview

  • Designed for houses with 1200 to 1800 sq. ft. attics
  • Reduces cooling costs to keep your house comfortable
  • 4-blade aluminum fan assembly provides quiet performance
Model #: CX24BDM-2SPD
Internet #: 203931021

The cool attic 24 in. belt drive 2-speed whole house fan is designed for houses with 1,200 to 1,800 sq. ft. attics. It offers an efficient way to reduce cooling costs, while keeping your whole house more comfortable. It works by pulling fresh air in from the outside and expelling the warm air up into the attic and pushing it out through your attic exhaust vents. This unit requires a minimum of 8-10 sq. ft. of net free exhaust vent area to perform quietly and efficiently. Dual, self-aligning ball bearing mechanisms, and precision-balanced 4-blade aluminum fan assembly, contribute to quiet, reliable performance and longevity.

  • 2-speed, 1/3 HP, thermally protected PSC motor
  • CFM high and low ratings at 4600 and 3200
  • Joist-in and joist out installation option
  • White, powder coated, ceiling mount, automatic shutter with 95% plus closure
  • Decor-style, dual on/off high/low function white wall switch included
  • Steel venture for durability
  • Rough opening: 26 in. x 28 in. - outside shutter dimensions: 27-3/4 in. x 29-3/4 in.
  • UL/CUL listed
  • 10-year limited warranty
  • Whole house fans are designed for ceiling mount installations only, please do not purchase a whole house fan if you are seeking a fan for wall exhaust use
  • Click here for more information on Electronic Recycling Programs
  • California residents see Prop 65 WARNINGS

Info & Guides

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Price
$233.39
$245.00
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Name 24 in. Belt Drive Whole House Fan with Shutter 4500 CFM 24 in. Direct Drive Whole House Fan with Shutter 30 in. Direct Drive Whole House Fan with Shutter 6000 CFM 30 in. Belt Drive Deluxe Whole House Fan with Shutter
Brand Cool Attic Master Flow Cool Attic Master Flow
Ratings (206) (135) (57) (79)
Power Type Electric Powered Electric Powered Electric Powered Electric Powered
Material Galvanized Steel Galvanized Steel Galvanized Steel Galvanized Steel
View Product View Product View Product View Product

Specifications

Dimensions

Cut-Out Width (in.)
27.75 in
Product Depth (in.)
29
Product Height (in.)
14
Product Width (in.)
29

Details

Amperage (amps)
5
Color Family
White
Color/Finish Family
White
Material
Galvanized Steel
Power Type
Electric Powered
Product Weight (lb.)
46lb
Returnable
90-Day
Voltage (volts)
120

Warranty / Certifications

Manufacturer Warranty
10 Year Limited

Specifications

Dimensions

Cut-Out Width (in.)
27.75 in
Product Depth (in.)
29
Product Height (in.)
14
Product Width (in.)
29

Details

Amperage (amps)
5
Color Family
White
Color/Finish Family
White
Material
Galvanized Steel
Power Type
Electric Powered
Product Weight (lb.)
46lb
Returnable
90-Day
Voltage (volts)
120

Warranty / Certifications

Manufacturer Warranty
10 Year Limited

Questions & Answers

Do I need a certain amount of vents in the attic to move the warm air out?

Asked by: Linda
Hello Linda, there is a specific calculation that is available at this link https://www.hvi.org/publications/HowMuchVent.cfm This will provide you with the proper amount of ventilation needed to maintain proper airflow.
Answered by: CustomerService
Date published: 2018-07-05

HD suggests buying a Hi/Low switch with this fan. Doesn't the fan already come with the switch? ...

HD suggests buying a Hi/Low switch with this fan. Doesn't the fan already come with the switch? What does the switch look like? Meaning, what type of cover plate does it require? The one the HD suggests looks like it takes a standard GFCI type cover.
Asked by: robsb1234
Mine came with a high low switch and a on off switch
Answered by: Ch
Date published: 2018-09-06

Does anyone know if normal operation is for the fan to only turn on when speed switch is set to high?

Just had this whole house fan installed and the installing is telling me that the fan will turn on only when the speed switch is set to high? When the switch is set to low and the power switch is turned on the fan doesn't turn on. Is this normal operation for this fan? I had a whole house fan in my previous house and it was able to start in low. The installer is ensuring me that it was installed per the mfg'ers instruction. So maybe I have a faulty fan? Thanks for your help.
Asked by: wrbird
I have the same fan as you do - installed it a couple months ago. It turns on from both low and high speed switch positions. Guessing that your switch is either wired incorrectly, or it's bad.
Answered by: Maako
Date published: 2018-03-01

How are these fans wired into the house's electrical system? Plug in or hard wired? Do I need an electrician?

I'm looking for a simple plug in option if available. Into a gfi
Asked by: Firsttimer
The fan is intended to be wired into the house wiring by a qualified electrician. It has a pair of switches that need to be wired in series to the fan: an on/off switch and a hi/lo speed selector switch. You can discuss what circuit to wire it to and where to position the switches with knowledgable help. Note that electrical codes may apply to the installation, which is another reason to involve a qualified electrician if you are unsure about how to wire it.
Answered by: VR54
Date published: 2018-07-07
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Customer Reviews

24 in. Belt Drive Whole House Fan with Shutter is rated 3.7 out of 5 by 206.
Rated 2 out of 5 by from Well, bought this fan over a year ago to replace a Sears model that finally gave up after 25+ yea... Well, bought this fan over a year ago to replace a Sears model that finally gave up after 25+ years of good service. When I first installed the fan, it worked OK, though it was not as strong as the Sears model it replaced. The first summer and following spring it held it's own, but when the second summer came, the fan seemed to have lost all of it's pep. I contacted customer service, and they kindly sent another motor under warranty. The specifications of the replacement motor were exactly the same as the first motor, but the fan still had no pep even with the new motor. The fan would no longer even open the shutters. Previously I had run the motor on the slow speed, so I tried the faster 1100 rpm setting without any luck in getting the fan to open the shutters. Nothing was binding on the shutters. I even wired the fan to a separate circuit, though it never tripped the breaker on the previous circuit. I am at a total loss as to why the fan worked OK in the beginning, and later was unable to fuction satisfactorily. The belt was adjusted properly. The fan seems to work according to many reviews, but here in this house it is a bust.
Date published: 2019-01-05
Rated 4 out of 5 by from Purchased this fan in Oct, 2018 after having the hottest summer in San Diego that I can remember.... Purchased this fan in Oct, 2018 after having the hottest summer in San Diego that I can remember. The frame is very sturdy, and the fan works well. Only gave it 4 stars, because I have not had a chance to try it out in hot weather yet. Used the joist in method to install it, because I did not want to cut out a joist. Instead of connecting directly to a circuit, I installed an outlet in the attic and used an extension strip with a 15 amp breaker in case anything went wrong. I also added a remote control with a timer ($14) that plugged into the strip. Since I am not good at repairing dry wall and I was using a remote control, I installed the 2 switches (that came with the fan) in the ceiling next to the attic access door. I can turn them off and on with a foot long ruler. I used a calking gun loaded with window ceiler to ceil any gaps. Hopefully, this will help to reduce my air conditioning bill next summer. Take a look at the pics, as they are worth a 1,000 words. The installation went well even though my attic is a pain to work in.
Date published: 2018-10-18
Rated 4 out of 5 by from works great. Glad I got the belt version, not the straight one. It fit right on top my joists which is why I bought this size one. Also, I got the belt kind so it would last longer and be quieter. This fan is pretty quiet. The louvers go up and down aok. One I had as a kid, had a separate motor to lift the louvers so I was worried that I was buying a cheap fan. But they go up and down by suction and work good.
Date published: 2013-04-30
Rated 5 out of 5 by from GREAT air flow and cools 2 story house off fast. The fan is a bit loud, but what do you expect for the money. It provides GREAT air flow and cools 2 story house off fast. I open windows on 2nd floor in the evening and it pulls all the hot air out of my 2nd floor and cools it off. Then I close those windows and open the first floor. I love it.
Date published: 2013-06-28
Rated 5 out of 5 by from Should've installed it sooner After having enough of $500. Electric bills I researched the whole house fan to reduce and help out in that dept. I installed it on a Saturday took me about 8 hours, having cut a hole and cutting a ceiling rafter to fit the fan in place. I built a frame to have the fan sit on it so it sits about 8 inches from the opening. I also decided to install a wemo wifi switch so that I can set a timer and a regular schedule (love that switch). Once I had it running it was an instant change the breeze that came was a God send. The way I run it is have the whole fan run from early o the morning until about 2 pm when the heat outside is hotter than inside then I kick on the ac after closing all windows. The ac runs for about 2-3 hours then switch back to the fan this world perfect and the house stays comfortable. Just make sure that you have adequate exhaust from the attic, I have a turbine and when you kick the fan on that thing spins like crazy. I wish I would have installed this year's back
Date published: 2017-08-15
Rated 4 out of 5 by from Good fan I replaced an existing whole house fan with this one. Because other reviewers complained about shipping damage I had it drop-shipped to the Home Depot store so it would travel on a pallet with other items instead of by itself. The fan blades are quite thin and the only shipping damage was one bent blade. The installation instructions are adequate, Follow the wiring diagram exactly. The belt drive makes it slightly quieter than the previous direct drive fan, but still quite loud. I mounted it on a layer of foam rubber, which dampens some of the vibration. Overall a good value.
Date published: 2013-06-12
Rated 3 out of 5 by from It's Functional Upon opening the box I noticed the included switches. Two switches - an on/off and a High/Low. Why in the world they couldn't incorporate them into one switch seems a little cheap. I got the fan installed and was installing the shutter assembly on the ceiling when I noticed the frame was assembled poorly. The corners were mated at a 45 degree angle and didn't match up. Somehow it was square though, and it works. I would not recommend this fan for large homes (3000+ sq.ft.) Just not enough air flow. Might be alright for small homes. I purchased the 24" because of limited space where I wanted it located and based on the attic ventilation recommendations. In retrospect I think I could have gotten away with a 36". Just like everyone else says, it's a bit noisy. It's a big fan and I didn't expect anything different. We don't operate it full time, just enough to pull the warm air out when there is no breeze on a cool evening. 30 minutes usually does it with some strategic window opening and closing.
Date published: 2013-07-23
Rated 5 out of 5 by from An effective fan, relatively easy to install. Review: A good quality fan at a good price. The unit arrived undamaged and in good shape. Noise of operation is from the fan and the air flow, without any vibration noise (partly due to careful adjustment and installation – see suggestions below). This was my first installation of a whole house attic fan: in this case, in our detached 3½ bay garage. Pleased with the relative ease of installation (joist-in in this case) and operation, I am proceeding to order a second unit for the house. Suggestions: • First, carefully inspect the fan assembly and the louver assembly for damage, and feel and spin the fan and motor and gently test the louvers before proceeding, in case a return is warranted. • In addition to mounting the fan motor and adjusting the belt tension as the instructions say, also check the belt alignment and adjust the motor pulley up and down as necessary to line the belt up on the two pulleys. • Check/tighten all the fan housing/structure bolts (some were loose, and one was missing on my fan as shipped). • Cut out a side of the louver box and trace the smaller (interior) frame of the louvers, and cut out a louver template from the box to assist with ceiling alignment and location before cutting into the ceiling. • Cut out a side of the larger fan box and make a template of the interior dimensions of the fan to similarly assist with alignment and construction of your fabricated fan box and frame in the attic. • Strips of the foam packing pad can be cut and glued to the finished box frame before setting the fan down and securing it, as anti-vibration material, if you do not have felt available.
Date published: 2013-11-02
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