Underfloor 12V Exhaust Ventilation Fan


$299.00 $249.00


Purchase this product and earn 249 PurePoints for a discount on a future purchase

SKU: EXEXIWBF Categories: ,
4.33 out of 5 based on 3 customer ratings
(3 customer reviews)
3 reviews  |  Write a review

spec sheetCapacity: 238 m3/hr (66.11 l/s)
Hole (Cutout) Size: 165mm x 230mm Round
Face Size: 200mm x 255mm
Ductable: Yes (150mm duct diameter)
View full technical specs further down the page

The 12v underfloor ventilation fan is suitable for single room or small area sub-floor ventilation. The high quality DC Brush less fan motor is designed for continuous running and long life. The visible cover is an anodized half chevron louvre with 5mm insect mesh. This fan is designed to extract air from the sub floor area.

The fan can be connected to 150mm ducting and multiple fans can be purchased to service a large area, when strategically positioned. You can also purchase a 24 hour timer if you wish to only run the fan for a predetermined number of hours.

Finally this fan is very easy to install as it comes with a plug – no electrician required! View the ‘dimensions and installation example’ tab below for more information about the fan.

Need Accessories? – Scroll to the bottom of the page to view suitable accessories including ducting and vents.







Hole Size

165mm x 230mm

Capacity (m3/hr)

238 m3/hr

Capacity (L/S)

66.11 L/S

Recommended Room Size (Based on Achieving 15 air changes per hour)

15.8 m3

Motor Power (Wattage)


Motor Height


Noise Level

42 dB(A)




This fan comes with a lead and plug for connection to a power socket

Installation Location




Duct Location

Rear Ducted

Duct Size



Fanco – The manufacturer offers a 2 year replacement warranty (conditions apply)

Capacity Disclaimer

All capacity figures and technical data quoted is provided by the manufacturer, Capacity figures are based on the unit freeflowing (not connected to ducting). If you are ducting this unit it is advisable to keep the duct run as short, straight and tight as possible

Room Size Recommendation Disclaimer

As stated our "Recommended room size" figures are based on achieving 15 air changes per hour. Generally we have found this to be suitable, however it does not constitute specific advice.

12V Ventilation Dimensions

Below is a diagram to illustrate the cross flow of ventilation that can be achieved in the sub floor area by using one or multiple 12v fans:

12V Ventilation fan installation example

3 reviews for Underfloor 12V Exhaust Ventilation Fan

  1. 4 out of 5

    Good air flow. Easy to use.

  2. 5 out of 5

    (verified owner)

    exactly as described, delivered quickly and well packaged

  3. 4 out of 5

    (verified owner)

    Easy process and good product

Only logged in customers who have purchased this product may leave a review.

Installation - All electrical goods must be installed by a licensed electrician unless they are DIY products (e.g. with lead and plug).

Prices - All prices are in AU$ and inclusive of GST.

Trade Pricing - We offer a 5% discount on orders with 5+ quantity of any single item, or orders $1,000+

Delivery Method - While we do not have a showroom, all products are listed in detail on our website. If you have any further questions, please contact us. Our warehouse is not currently set-up to accommodate pick-ups, we do however dispatch promptly with reliable post and courier services Australia wide. If you need urgent delivery, please contact us prior to purchasing to get an estimate delivery time and delivery options.

Delivery Cost - Most orders over $300 will qualify for free delivery, however some rural and remote areas may not be included. To check if your postcode qualifies, simply add the item(s) to the Cart where you can input your State and Postcode to calculate shipping. For further and more detailed shipping information, click here.


  • This 150mm ducting (6m length) can be cut down to suit required length. For best airflow, it is recommended to keep the duct tight, as short as possible, avoid sharp turns and keep duct as round in shape (do not squash it).
    Choose the duct size to suit the exhaust fan and for best airflow, use same size or bigger duct than required by the fan.
    This is non-insulated ducting (please see alternative product listings for insulated ducting if required).

    4.88 out of 5
    $26.00 $17.00
  • A simple plug in 24 hour timer, allowing you to specify desired operation time.
    Timer Instructions – To Set the Timer:

    1. Push down segments between desired ‘ON’ and ‘OFF’ times.
    2. One segment represents 15 minutes of ‘ON’ time.
    3. Rotate dial to align present time with pointer.
    4. Insert into powerpoint and switch on.
    5. To override programme, switch to ‘I’.

    240v AC 50Hz
    10A 2400W Max

    4.50 out of 5
  • A metal passive sub floor vent sized as a standard brick. Simply remove brick and insert metal vent in place. Multiple vents strategically positioned may be needed to provide sufficient passive ventilation. These vents can also be used in conjunction with our sub floor ventilation exhaust fans and kits.

    5.00 out of 5