Internet #100018252

Model # WHFS24M

Store SKU #432659

0050206023853

4500 CFM 24 in. Direct Drive Whole House Fan with Shutter

  • Direct drive motor with included 2-speed pull chain operation
  • 10-year parts limited warranty; 5-year labor limited warranty
  • Maximum house size for optimum performance: 2500 sq. ft.
$ 246 17

Frequently Bought Together

Frequently Bought Together

Product Overview

  • Direct drive motor with included 2-speed pull chain operation
  • 10-year parts limited warranty; 5-year labor limited warranty
  • Maximum house size for optimum performance: 2500 sq. ft.
The Master Flow 4500 CFM 24 in. Direct Drive Whole-House Fan is a smart energy saver for any home in a climate where air conditioning costs are a concern. It allows you to beat the heat by forcing hot air out of your home through your attic space while bringing in cooler outside air through your windows and doors. This unit comes with a white shutter and features a low-vibration, direct drive mechanism for reliable performance. A minimum 1100 sq. ft. of attic space with a minimum of 1008 sq. in. of net free area attic exhaust is required for proper operation.
  • Powerfully moves air at a rate of up to 4500 CFM
  • 1/4 HP permanent split-capacitor motor helps move hot air out of your home
  • Direct drive motor design offers low vibration
  • 2-speed pull chain switch control for easy operation
  • Includes automatic ceiling shutter in white
  • Can be installed with no joist cutting
  • UL/UL Canada listed



Product Overview

  • Direct drive motor with included 2-speed pull chain operation
  • 10-year parts limited warranty; 5-year labor limited warranty
  • Maximum house size for optimum performance: 2500 sq. ft.
Model #: WHFS24M
Sku #: 432659
Internet #: 100018252

The Master Flow 4500 CFM 24 in. Direct Drive Whole-House Fan is a smart energy saver for any home in a climate where air conditioning costs are a concern. It allows you to beat the heat by forcing hot air out of your home through your attic space while bringing in cooler outside air through your windows and doors. This unit comes with a white shutter and features a low-vibration, direct drive mechanism for reliable performance. A minimum 1100 sq. ft. of attic space with a minimum of 1008 sq. in. of net free area attic exhaust is required for proper operation.

  • Powerfully moves air at a rate of up to 4500 CFM
  • 1/4 HP permanent split-capacitor motor helps move hot air out of your home
  • Direct drive motor design offers low vibration
  • 2-speed pull chain switch control for easy operation
  • Includes automatic ceiling shutter in white
  • Can be installed with no joist cutting
  • UL/UL Canada listed



Info & Guides

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Price
$120.44
$246.17
$309.00
$449.00
Ratings (86) (157) (101) (39)
Cut-Out Width (in.) 6 in 27.25 in 32.25 in 16 in
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Specifications

Dimensions

Coverage Area (Sq.Ft)
2500
Cut-Out Width (in.)
27.25 in
Net-Free Area (Sq. In.)
1008
Product Depth (in.)
31.5
Product Height (in.)
9
Product Width (in.)
30.5

Details

Airflow (CFM)
4500
Amperage (amps)
2.3
Color Family
Metallic
Color/Finish
White
Color/Finish Family
White
Decibel (Sound) Rating
01-Not Measured
Drive Type
Direct Drive
Features
Speed Control
Horsepower (hp)
1/4
Material
Galvanized Steel
Motor Speed (RPM)
825
Mounting Position
Ceiling
Product Weight (lb.)
36lb
Returnable
180-Day
Voltage (volts)
120
Voltage (volts)
120

Warranty / Certifications

Manufacturer Warranty
10-year Parts Limited Warranty 5-year Labor Limited Warranty

Specifications

Dimensions

Coverage Area (Sq.Ft)
2500
Cut-Out Width (in.)
27.25 in
Net-Free Area (Sq. In.)
1008
Product Depth (in.)
31.5
Product Height (in.)
9
Product Width (in.)
30.5

Details

Airflow (CFM)
4500
Amperage (amps)
2.3
Color Family
Metallic
Color/Finish
White
Color/Finish Family
White
Decibel (Sound) Rating
01-Not Measured
Drive Type
Direct Drive
Features
Speed Control
Horsepower (hp)
1/4
Material
Galvanized Steel
Motor Speed (RPM)
825
Mounting Position
Ceiling
Product Weight (lb.)
36lb
Returnable
180-Day
Voltage (volts)
120
Voltage (volts)
120

Warranty / Certifications

Manufacturer Warranty
10-year Parts Limited Warranty 5-year Labor Limited Warranty

Questions & Answers

What is the material of the SHUTTER (plastic or aluminum. Thanks

What is the material of the SHUTTER (plastic or aluminum. Thanks
Asked by: Claude
The shutter material appears to be aluminum, powder coated. It is not plastic and it is not attracted to a magnet, so I'm pretty sure it's aluminum
Answered by: DocMotors
Date published: 2020-04-22

Can this fan be installed using a wall-mounted 2-speed switch instead of the pull chain?

Can this fan be installed using a wall-mounted 2-speed switch instead of the pull chain?
Asked by: roadrunner
Yes. This unit can be install with a switch. Switch is sold separately but is worth it
Answered by: Pat
Date published: 2018-08-12

Is this fan designed to open the shutter when it is turned on simply by the force of the air that...

Is this fan designed to open the shutter when it is turned on simply by the force of the air that is being sucked through the shutter?
Asked by: chris
Yes, turning the fan on low will open the shutter. The speed can then be adjusted. If you have any other inquiries about our Master Flow products please call Technical Services at 800-211-9612.
Answered by: Master Flow
Date published: 2018-02-19

Is this fan a ceiling mount or wall mount

Is this fan a ceiling mount or wall mount
Asked by: Bigpappa
It is ceiling mount, and let me tell you how well it works..with these hot days, I turn the air conditioning on in the late am and then in the early evening we open up and turn the whole house fan on.. (you just need to crack the windows about 3 inches). It pulls in so much cold air.. when it is 65 degrees in the house, we turn the fan off... repeat as needed..
Answered by: RSTexas
Date published: 2018-08-16
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