Powerfoil® D

Delivering quiet comfort in large spaces.
get a quote

Powerfoil® D

Delivering quiet comfort in large spaces.
get a quote

Powerfoil® D

Designed with the size, power and efficiency to tackle oppressive temperatures or stagnant air head on. Powerfoil D is perfect for spaces that need quiet, durable airflow.

Product Highlights

Built to withstand ball strikes and harsh conditions, Powerfoil D is the perfect solution for schools in need of quiet and low maintenance cooling for large halls. This gearless overhead fan is engineered with premium materials, ensuring its durability and reliability. With a virtually silent motor and a 15-year warranty, Powerfoil D is the ideal choice for schools seeking to create a comfortable and productive learning environment.

Powerfoil D is available in diameters ranging from 4.3m to 7.3m, providing powerful airflow of up to 109 cubic meters per second. Its airfoils are designed to reduce wind turbulence and noise with cuffed winglets, ensuring consistent airflow throughout the space.

Energy Usage

Looking for a cost-effective solution to cool your school’s large hall? Look no further than the Powerfoil D. With an efficient motor and aerodynamic design, this HVLS fan is capable of circulating airflow over a wide area, reducing the need for costly air conditioning. In winter, the fan can even help to equalize temperatures from floor to ceiling, making heaters more efficient.

In fact, using the Powerfoil D can reduce cooling and heating costs by up to 30%, more than offsetting the modest annual running cost of $1,030. So not only will your school be more comfortable, but it will also save money in the long run.

Airflow Mapping

Uncertain if Big Ass Fans products will make a difference? We get it. That’s why we created an interactive, science-based software tool that allows us to show how our fans and evaporative coolers will create energy-efficient comfort. See how we do it here.

Specs and Measurements

Discover specifications including weight, height, airflow output and sound level in the Powerfoil D Cutsheet here.

Warranty & Returns

The Powerfoil D comes with a 15 mechanical and electrical warranty when purchased with Big Ass Fans Certified Installation*. Our service department is here to assist with any technical questions you may have here.

*If no Big Ass Fans Certified Installation purchased, Powerfoil D comes with a 7 Year Electrical Warranty

Keeping Students cool and productive

The strong silent type

Powerfoil D is specifically engineered to endure harsh and challenging environments, making it a perfect solution for school halls. Its IP66 rating and direct-drive motor enable it to withstand wet and dusty conditions while delivering quiet and consistent performance. Feel confident your investment will continue to spin for years to come with little maintenance.

BMS Integration

Powerfoil D is pre-programmed for easy BMS integration, allowing you to sync up to eight fans effortlessly. Featuring SmartSense® automated modes that adjust the fan speeds based on temperature for optimal efficiency, reducing energy consumption without compromising comfort.

All-in onE Safety

At Big Ass Fans, safety is our top priority. That’s why Powerfoil D is designed with multiple redundant safeguards, including aircraft-grade steel safety cables and an Airfoil Restraint® System. In the event of severe impact damage, the Airfoil Restraint® System suspends the fan’s airfoils, preventing them from dislodging and potentially causing harm.

US made, local support

Our Powerfoil D was designed and built in our custom-made manufacturing facility in Lexington, Kentucky. Stocked locally for quick dispatch, with a Brisbane-based support team and national network of certified installers for a seamless experience.

See how brisbane bayside  used Big Ass Fans to keep their students and parents comfortable in their assembly hall.

How we find the perfect solution

How we find the perfect solution


Size does Matter! The optimal performance of our fans is directly linked to their size and positioning within your facility. Our team visits your facility to measure and evaluate the space, ensuring you get the most out of your investment.


By combining computational fluid dynamics (CFD) with airflow data collected in our state-of-the-art Research & Development facility, our airflow experts use SpecLab® to customise and test their recommended cooling solution before it’s installed—saving you both time and money by avoiding ineffective cooling solutions.


Based on our findings, we’ll provide a full recommendation of Big Ass fans specifically designed to fit your space and address your concerns. With our personalised approach, you can trust that you’ll receive a customised solution that maximises comfort.


At Big Ass Fans, we’re committed to providing support from start to finish. That’s why we offer professional installation from our Certified Installer Network. Our team will coordinate your project from beginning to end, working around your schedule to minimise interruptions.

Loved by over 1,200 schools across Australia

A note from our biggest fans

Feel Confident you’re buying the right fan

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Whether you have an industrial complex or a small shop, our airflow experts are here to make your life easier, more comfortable, and less expensive.