512M6" 70 CFM Through Wall Fan, White Grille

  • Overview
  • Specifications
  • Accessories
  • Reviews
  • Answers
  • Eliminate humidity from laundry rooms, tobacco smoke from rec rooms, fumes from workshops, or cooking fumes from kitchens with Broan's utility ventilators.
    • 70 CFM 3.5 Sones
    • Easy exterior wall installation
    • Features a white interior grille and louvered exterior wall cap with built-in bird screen
    • 6” diameter flexible aluminum duct included
    • Accommodates walls from 5-1/4” to 10”
    • Use with remotely mounted wall switch or Broan Model 57W or 57V variable speed control (available separately)
  • Bathrooms up to (X) Square FeetN/A
    Ceiling InstallationNo
    CFM @ 0.03"70
    CFM @ 0.125"N/A
    CFM @ 0.25"N/A
    cUL ListedNo
    Duct DirectionDirect Discharge
    Through Wall
    Duct SizeN/A
    ENERGY STAR® certified productNo
    Globe ColorN/A
    Grille FinishWhite Polymeric
    Grille Length8" Dia
    Grille Width8" Dia
    Heater wattageN/A
    Housing Dimension LxWxH6" Rd X 4-3/8"
    Housing HeightN/A
    Housing Length4-3/8"
    Housing Width6" Round
    Humidity SensingNo
    HVI CertifiedYes
    Light Bulb Quantity0
    Light Bulb WattageN/A
    Light Bulb(s) IncludedNo
    Lighting TypeNo Light
    Minimum construction space requiredN/A
    Motor engineered for continuous operationNo
    Product Weight3 lbs
    Project PackNo
    Rated Amps0.7
    Rated Sones - VerticalN/A
    Rated WattsN/A
    UL Listed for use over bathtubs or showers when connected to a GFCI circuitNo
    Wall InstallationYes
    Warranty1 Year
    Watts @ 0.1"N/A
    Watts @ 0.25"N/A
  • 512M is rated 4.4 out of 5 by 19.
    Rated 2 out of 5 by from OK Fan if you're handy and own a bench vise Out of the box, the fan blades were rubbing against the inside housing. The motor bracket was 1/8" too short and was pulling in the housing sides. Pretty easy fix to remove the bracket and bend it out with bench vise, but come on. Other than that, easy to install and pulls a lot of air with as much noise as you would expect.
    Date published: 2017-12-15
    Rated 5 out of 5 by from So far, so good This Broan replaces a Nautilus 509 we bought 20 years ago. ( It is the same, so I think Broan took over the Nautilus product line.) The Nautilus worked great and except for the knob to turn it off and on-which after 18 years wore out, we made a new one. We replaced THE Nautilus as the bearings were starting to make noise and the gasket in the hood for the exhaust lever had begun to disintegrate. But after 20 years??!! It was the only fan we could find that included the exhaust hood and direct vented outside and was pretty much a 'plug and play' with the set up for the Nautilus. We did however, take out the whole Nautilus product and completely installed the NEW Broan which wouldn't have been hard if the directions were followed. (READ THE DIRECTIONS-IT MAKES IT SO MUCH BETTER) If this product holds up like the old Nautilus, when it needs to be replaced in the future, it will be someone else's decision.
    Date published: 2017-07-10
    Rated 4 out of 5 by from Seems to work most of the time. The fan works just fine. Sometimes the flapper outside sticks and don't open right away. The installer has been made aware of this problem.
    Date published: 2015-10-17
    Rated 5 out of 5 by from Affordable and Effective I have an old concrete home with no access to an attic vent and concrete walls. There was no way I was going to be able to mount a typical exhaust fan in the ceiling due to a 10" concrete slab above the ceiling or mount one in the wall due to a solid 6" slab wall.Needed something that would go straight through the wall like a dryer vent does. After reading a few reviews and seeing the price,I decided to try it. It's a basic fan with a simple installation process. Aside from spending approx. 6 hours breaking out and drilling out concrete to fit the duct through,the installation of the fan was fairly simple.The adjustable length duct tube made installation a breeze(just stretch it or contract it to the depth you need).The fan is quiet enough for me ,even at it's highest speed( I installed the broan adjustable fan speed switch).Nice to know that the fan has a replaceable motor if necessary.This way you won't have to replace the entire assembly if the motor goes bad.
    Date published: 2014-05-18
    Rated 5 out of 5 by from Bath Vent Fan Installation fairly easy. Only issue was the wiring box was a little tight so the connection box was removed (easily) and the connections were made and then the box was restored. Had to do so because the ground was impossible to reach without removing the box first. Other than that, it runs and hopefully will do the job after the bathroom is finished.
    Date published: 2013-10-08
    Rated 5 out of 5 by from Unit was easy to install. Operation has been as advertised.
    Date published: 2013-09-04
    Rated 5 out of 5 by from Does the job well Installation was straight forward as in the instructions. Just wish they offered a chromed grill as opposed to white plastic. Also exterior vent grill is a white plastic that transmits a lot of light so wife was convinced the vent was open with fan off. Might try to apply some type of plastic paint to cut down light transmission and blend in with exterior brick.Does seem to clear humid air from shower use very well. Sound level is acceptable as I know it is doing the job.
    Date published: 2013-04-03
    Rated 5 out of 5 by from Qaulity Product Purchased to install in a small bathroom and as a vent to the outside instead of roof installation. Installation was very straightforward and easy to follow instructions. Does a great job clearing our small bathroom 8' X 8' and keeps the humidity down. Noise is not bad, about as loud as a small window unit AC or a floor fan on high. Would recommend based on installation and operation.
    Date published: 2013-03-28
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  • Need to replace cowling flaps that have broken and dropped from the outer grill cover. Do you sell these?

    Asked by: nschlech
    This happened to me as well! Did the replacement part fail as well? I hate buying plastic that fails and then spends 100s of years in landfill. Not to mention paying even $25 for a part that shouldn't have warped and fallen off within two years anyways!
    Answered by: BohemePDX
    Date published: 2017-12-16

    Damper gets stuck closed

    How can I fix the damper so it will open when the fan is turned on. This unit is 5 years old and runs very well. However, this week I noticed the damper won't open. I have to open the window and pull it open.
    Asked by: Val
    The damper on my fan would stick to the weather seal also. Try this. This isn`t easy, but I held open the damper, and I applied caranuba car wax to the damper and rubber seal it touches when closed. It has worked great. Spaying silicne on it did not work as well.
    Answered by: Pudge
    Date published: 2015-06-13

    508 duct vent into Attic?

    We purchased the 508 direct vent over a years ago for another applicaiton that we chose not to move forward with. Today, we are rennovating our 3rd floor apartment and would like to use this vent with duct connection to an attic vent. Is this possible?
    Asked by: Dianne
    I live it Marietta,Ga mine is vented in and unfished attic which is ok according to our local building codes. I suggest you check with your local building inspector or code inforcement dept.
    Answered by: pacman
    Date published: 2016-10-08

    Installing a 512M through cement wall.

    I am planning to purchase the 512M and install it through a cement wall. The plan is to drill the proper size hole through the cement. My question is about wiring. It looks that there is a box to secure the wires into and it is located outside the duct or the motor housing. In that case I cannot install this fan. Am I correct?
    Asked by: Bandi
    Thank you for your question on the Broan 512M. You are correct as the electric box would be located inside the wall. Having a solid wall will not work. If you have further questions please contact Technical Support directly at 800-637-1453.
    Answered by: BroanCustomerService
    Date published: 2018-02-04

    What size hole?

    The instructions say cut a 6.375" hole thru the outside wall for installation. What size hole do we cut on the inside wall?
    Asked by: xenachris
    Thank you for your question on the model 512M through the wall exhaust fan. The 512M can be installed in outside walls up to 10 inches thick. Walls less than 6 inches thick will not use the adjustable duct. If you are using the adjustable duct, cut a 6-3/8 inch diameter opening in the inside wall. If you are not using the adjustable duct, cut a 6-1/8 inch diameter opening in the inside wall.
    Answered by: BroanCustomerService
    Date published: 2016-01-26
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