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QT140LEQuiet Bathroom Fan/Light/Night Light, 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
    • 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
    • Energy efficient lighting - (2) 18W (max.) high efficiency, type GU24 based fluorescent bulbs (included), and 4W (max.) type C7 night light bulb (not included)
    • Durable steel reflector with white enamel finish

    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).

    ENERGY STAR® Certified

    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"122
    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 Quantity2
    Light Bulb Wattage18
    Light Bulb(s) IncludedYes
    Light Bulb(s) Included for Night LightNo
    Lighting TypeFluorescent
    Minimum construction space required2x8
    Motion SensorNo
    Motor engineered for continuous operationYes
    Product Weight12.2
    Project PackNo
    Rated Amps1.4
    Rated Sones - VerticalN/A
    Rated Watts47.3
    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"47.3
    Watts @ 0.1" (Max CFM)47.3
    Watts @ 0.25"N/A
  • QT140LE is rated 4.5 out of 5 by 33.
    Rated 5 out of 5 by from Great for removing moisture!! Excellent product all the way around!!! Fairly easy to install although I gave it a 4 due to the fact that I had to vent it through a soffit. Excellent at removing the moisture. I would recommend this for any bathroom large or small because it is extremely quiet as well.
    Date published: 2017-04-19
    Rated 5 out of 5 by from Love the bathroom fan We purchased the Broan fan for use in a new construction of a 2nd bathroom. We love it, especially the night light that is motion activated. At first, we had a problem with the light flashing constantly, but very short flashes. We discovered that our lighted wall switch was the problem. We changed it out for a regular switch and everything was fine.
    Date published: 2017-04-16
    Rated 4 out of 5 by from This fan has great features The fan with light and night light give off a lot of lite. The night light is great feature during the night and the fan is quieter then the original home builder supplied fan.
    Date published: 2017-02-21
    Rated 5 out of 5 by from Quiet and Powerful Fan, "Old School" spring clips SUCK This is very nice fan, has all of the features I was looking for. I find the fan to be whisper quiet, especially compared to my old builder grade fan (all noise with no results). Installation was a breeze, until the last step.... yesterday I spent over 3 hours, constantly having my fingers snapped by the spring clips. It didn't matter which side of the unit I was trying to hook, the clips would NOT snap into place. So I tried for another hour this morning, same thing. I called customer service, they are sending out new clips, not sure if this will help or not. I hope so, my fingers hope so as well. Just seems like in todays technology, there has to be a better solution.
    Date published: 2016-09-15
    Rated 5 out of 5 by from Excellent unit - quiet and powerful The unit is quiet and powerful, and clears the bathroom VERY rapidly. It was installed by our contractor as part of a remodel while the ceiling was open. His comment was that it was an easy install for him, but would probably be more difficult from below, or for DIY. The installation was done with 6" rigid pipe and three switches, to control the fan, main, and night lights separately. The night light is a very useful feature. However, we thought the main light was not bright enough, but had also installed another light at the same time.
    Date published: 2016-08-26
    Rated 5 out of 5 by from Excellent fan! Can't say as much for the included bulbs This fan was a great replacement for the smaller, less powerful one that was currently installed. Fan is very powerful, twice as quiet as smaller models I had looked at, and installation was very easy. The only downside to the whole fan package were the included GU24 lightbulbs. One lasted about two and a half weeks and the other about a week longer. The bulbs are only on about an hour a day for showers. Save yourself the hassle, skip the ones in the box and install replacement bulbs right from the beginning
    Date published: 2016-08-15
    Rated 5 out of 5 by from Great Fan with Good lighting This fan keeps all the condensation off our mirrors and there is very little on the glass shower door/walls. It is extremely quiet and smooth. I only have two minor issues, neither detract from the performance of the fan. 1. The cover mounting is not very robust. I have the fan housing mounted perfectly flush to the house side of the sheet rock and the cover does not fit tightly to the ceiling all the way around. 2. I detest GU 24 base bulbs (and fluorescent bulbs in general).
    Date published: 2016-07-20
    Rated 5 out of 5 by from Great product at a great price We needed a more powerful exhaust fan for our master bathroom for the shower/tub moisture that accumulated after bathing. The QT140LE fit this need perfectly. It is powerful enough to control the moisture, while also being exceptionally quiet. Installation was not simple, but for anyone with minimal DIY skills, it shouldn't be a problem at all. Highly recommended.
    Date published: 2016-04-29
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  • I prefer to use a regular incandescent light bulb. max watts?

    We have our fan and light separated to different outlets so that we can dim the lights on a dimmer, and then wired the fan portion to a spring wound timer. I want to use incandescent bulbs for this. 1) CAN I? and 2) what is the maximum wattage for the bulb?
    Asked by: Betsy K
    Betsy, I have same issue and will probably use a lower wattage with warmer color GU24 bulb (2700K ~ incandescent) as I have a larger light already in the bathroom. I might even just just one bulb. I plan on using the vent light for winding down at night or to contrast the bright 4100K light I already have. There are GU24 to Edison Base adapters but then you'd have to find a specialty bulb short enough...not worth the trouble. Although they recommend incandescent C7, I use LED C7 for other bathroom night lights and they don't get hot and will last a lot longer! Note, all CFLs have poor reliability and take time to brighten.
    Answered by: Eric1245
    Date published: 2014-02-01

    I need to replace the light bulb in this model. How do I access the bulb? I don't want to force or break the fixture.

    Asked by: Zip
    Look in the installation booklet. It shows you should use a small flat blade screwdriver on either side, long side, of the lens and gently pry it off one side. The other side will pop out. The bulbs are special so be sure you get the correct bulbs for it.
    Answered by: DIYfan
    Date published: 2015-10-31

    How does the night light work?

    Asked by: Elwrong
    You will need to have a separate switch with wiring in order to use the nightlight. You will also need separate switches for light and fan if you want them to run independently.
    Answered by: Imzdo
    Date published: 2015-02-28

    Loud exhaust fan

    Put in this new fan to replace old loud one and this one is louder Any suggestions why
    Asked by: Cj
    If you used the 6" exhaust duct, it should operate at 1.5 Sones. If you used the reducer from 6" to 4" the Sones level will be higher and the CFM slightly lower. Unless there is a problem with the fan turning freely, it should be fairly quiet. It also depends on the specs of the fan you replaced.
    Answered by: DIYfan
    Date published: 2015-10-31

    Lunaura Nightlight not working!

    After numerous hours of troubleshooting, replacing switches, climbing in the attic reconnecting wires, swapping wires to different switches, paired light and fan working on both switches, while the LED nightlight is zilch... at this point I've come to the conclusion that you guys sold me a faulty unit. I would greatly appreciate it if you guys came out yourselves and installed the new unit! I've wasted enough of my time.
    Asked by: ChrisHunter
    Apologies Nutone staff. The manual is very non descriptive and I somehow missed the paper thin cord which attaches to the LED box....My son was like daddy what's that weird strip for.
    Answered by: ChrisHunter
    Date published: 2016-09-10
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