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QT140EQuiet Bathroom Fan, 140CFM ENERGY STAR® Certified

  • Overview
  • Video Links
  • Dwelling Unit Ventilation Selector
  • Specifications
  • Accessories
  • Reviews
  • Answers
  • Sensonic Speaker Accessory


    • Plug-in, permanently lubricated motor - engineered for continuous operation
    • Dynamically balanced centrifugal blower wheel for quiet, efficient performance
    • Low RPM for quiet operation
    • ENERGY STAR® Certified
    • Resilient anti-vibration motor mounts


    • Rugged, 26 gauge, galvanized steel construction
    • Polymeric, 6” round duct connector with tapered sleeve and no metallic clatter
    • 6” round to 4” round duct reducer included - allows connection of 4” round ductwork
    • 7-5/8” height allows for 2” x 8” ceiling installations
    • Sturdy, easy, four-point mounting directly to joist
    • Includes unique spacer (patented) for mounting to engineered “I” joists
    • Can be mounted in ceilings up to 12/12 pitch


    • Polymeric construction
    • Innovative design - the result of extensive research with designers and consumers

    CONTROLS (Purchase separately):

    • Refer to Broan’s catalog for a complete line of accessories to effectively adapt these fans to your construction requirements.

    U.L. Listed for use over bathtubs and showers when connected to a GFCI protected branch circuit (ceiling mount only).

    Buy this Bath Fan online at lowes_logo
    BROAN Bath Fans available at Lowe’s.
    Find your nearest Lowe’s store.

  • Video Links

    QT Series Ventilation Fans

    How Do I Prevent Mold Growth In Bathrooms? - Danny Lipford

    Cleaning a Bath Exhaust Fan - Danny Lipford

    Proper Ventilation Equals A Healthy Home - Danny Lipford

    How To Ventilate The Whole House - Danny Lipford

    Selecting Proper Ventilation Fan Size is Easy - Danny Lipford

    Article Links

    Evacuate the Bathroom

    Breathe Easy – What you need to know to ensure proper home ventilation

  • Whole House Mechanical Ventilation (WHMV) Specifier

    Code compliant solutions for one and two family dwellings and townhouses up to three stories

    To better serve you in determining your customers’ whole house mechanical ventilation (otherwise known as continuous ventilation) needs, Broan-NuTone has developed this on-line tool.  With our CodeKey Specifier you can be confident that the products you choose will meet the latest codes and regulations.  Use this tool to make your specification job easier.

    Let’s get started by selecting the state where the dwelling unit will be located. CLICK HERE

  • Bathrooms up to (X) Square Feet125
    Ceiling InstallationYes
    CFM @ 0.10"140
    CFM @ 0.25"123
    cUL ListedYes
    Duct DirectionHorizontal
    Duct Size6"
    ENERGY STAR® certified productYes
    Globe ColorN/A
    Grille FinishWhite Polymeric
    Grille Length13"
    Grille Width14"
    Heater wattageN/A
    Housing Dimension LxWxH10-1/2" X 11-3/8" X 7-5/8"
    Housing Height7-5/8"
    Housing Length10-1/2"
    Housing Width11-3/8"
    Humidity SensingNo
    HVI CertifiedYes
    Light Bulb QuantityN/A
    Light Bulb WattageN/A
    Light Bulb(s) IncludedNo
    Lighting TypeNo Light
    Minimum construction space required2x8
    Motion SensorNo
    Motor engineered for continuous operationYes
    Product Weight10.4
    Project PackNo
    Rated Amps0.9
    Rated Sones - VerticalN/A
    Rated Watts49
    Sones 6" to 4" reducer2
    UL Listed for use over bathtubs or showers when connected to a GFCI circuitYes
    Wall InstallationNo
    Warranty3 Years
    Watts @ 0.1"49
    Watts @ 0.1" (Max CFM)49
    Watts @ 0.25"N/A
  • QT140E is rated 4.7 out of 5 by 21.
    Rated 5 out of 5 by from Past Experience Chose Broan Again When remodeling our Master Bath there was no question which fan we wanted installed. We used Broan in our last home and they always worked as advertised. So when we needed one in our new home, we never looked at another product. The quietness and air movement are as advertised. Extremely pleased with the product.
    Date published: 2017-08-05
    Rated 5 out of 5 by from It is quiet We have appreciated the low decibel level of noise compared to a previous fan.
    Date published: 2017-04-07
    Rated 5 out of 5 by from great fan fan is easy to install with access to attic. very powerful and very stylish. looked at different fans for about a month and chose this one, very glad I did
    Date published: 2017-03-26
    Rated 5 out of 5 by from Very happy with this product Wife wanted a better vent fan in the bathroom, enough said. While shopping this was rated the largest air mover, and quietest product on the shelf. Price was acceptable. Simple to install, works as advertised. Happy wife etc. etc.
    Date published: 2016-08-26
    Rated 4 out of 5 by from bath fan this fan was put in by a plumber. cost was $100 labor + the fan. It works great!
    Date published: 2016-04-27
    Rated 5 out of 5 by from Very goood. Was the highest rated for performance and quietness. One downside. Came with a 6" wide vent and the vent in my bathroom is only 3" so took a lot of adjustments. Wish they had made that clear on the package. Another downside, it came with two hard to find light bulbs. (With two metal poles sticking out 1/2". Will they be around in five years? I've never encountered them anywhere else. This worries me.
    Date published: 2016-04-26
    Rated 5 out of 5 by from Great fan and an easy install. I installed mine from the attic to replace a faulty cheaper model. Probably took me 45 mins to put it in. Additionally I had to vent out of the side of the house so all in all the entire job took about 3 hours. After finishing the job I took one of the hottest showers I've ever taken. I came out looking like a lobster and the room had no humidity. I did not get the lighted model. Fan only. I gave this model an average feature set rating as there is no humidity sensor, night light or anything fancy on it. It's a fan... A powerful one at that. I'm excited to compare this to a fan for my downstairs bathroom reno I just ordered. It's a Panasonic recessed light fan. It's considerably more expensive so I'm curious to see the difference in quality compared with this lower end broan.
    Date published: 2016-01-02
    Rated 4 out of 5 by from Good Solid Product The product is quiet and it does pull a bit of air. I would recommend it.
    Date published: 2015-07-16
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  • Detail on installing flap into the Duct Connector - 6” would be helpful.

    1) If my roof cap has a built-in damper, do I need the flap in the Duct Connector? 2) Assuming that I do need the flap, then more help in installing the flap would be nice. Here is where I am confused: Looking through the 6 inch round connector as it goes into the rectangular shape to attach to the fan, the top of the rectangle has a "foam strip" glued to it. If I insert the flap with its top in front of the foam, then the flap will be restricted from fully opening, but the flap will close completely (see picture "flap top in front ..."). If I insert the flap with its top behind the foam, then the flap won't close, but can open fully (see picture "flap top behind..."). Please let me know which is the correct installation. It seems to me that the "foam strip" should be positioned more towards the front, so that the top of the flap can be behind it, which would allow the flap to both fully open and close. There are no details given on this part of the installation. I feel that this is important information, because the tabs on the flap seem weak and will only tolerate so many attempts at installing it correctly. Also, I believe that I have the orientation of both parts correct, but it would be nice to have confirmation.
    Asked by: jrfiedler
    The question is great and the photos are helpful. I am having the same issue and need some clarity. Unfortunately, I am not sure if the answer given by the manufacturer was foam in front or foam behind as you describe it. The bending answer they gave was confusing because I don't want a restriction but it would be nice to have a nice seal in the winter. Can you guys answer in the context that the question was asked? Flap top in front of the foam or flap top behind the foam???
    Answered by: JayBo
    Date published: 2014-09-05

    Will this work with 3" ducting? If no, why not, If yes, what would be the estimated Sones rating?

    Asked by: Jim
    Buy a smaller fan or change your duct
    Answered by: Jayf
    Date published: 2016-07-02

    Is the Qt140E fan compatible with DH100w dehumiistat

    Asked by: allen
    Thank you for your question regarding the QT140E exhaust fan. This unit is compatible with the DH100W dehumidistat.
    Answered by: BroanCustomerService
    Date published: 2016-05-18

    Can a dimmer sw. be used to vary the speed of the fan?

    I would like to control the circulation of the air in a room then vent thru attic, will this motor & circuitry support a dimmer sw. or other type of variable speed control?
    Asked by: dmvictum
    Thank you for your question on the QT140E ventilation fan. Yes, you can use a variable speed control with this unit. The 57W is compatible with this model. Please contact our Technical Support directly should have more questions at 800-637-1453.
    Answered by: BroanCustomerService
    Date published: 2017-04-03

    left hand dump

    I want to vent out the side of the house and the outlet is on the other side of where the outside wall is. Do you make a left hand outlet for this model?
    Asked by: jp1gt
    Thank you for your question on the model QT140E exhaust fan. The QT140E is made with the duct connection in one place only. We do not offer a different option.
    Answered by: BroanCustomerService
    Date published: 2013-11-19
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