Powerfoil® D

Delivering quiet comfort in harsh conditions.
get a quote

Powerfoil® D

Delivering quiet comfort in harsh conditions.
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

Durably engineered with premium materials and rated IP66 to withstand harsh industrial conditions, Powerfoil D excels in hot, dusty spaces that typically prove too challenging for other gearless overhead fans. Its versatile design, virtually silent motor, and 15-year warranty makes this HVLS fan the ideal choice for facilities looking for quiet comfort.

Available in diameters of 4.3m – 7.3m, Powerfoil D creates powerful airflow, moving up to 109 cubic meters of air per second. The airfoils’ aerodynamic design and cuffed winglets reduce wind turbulence and noise, keeping airflow consistent throughout the coverage area.

Energy Usage

With Powerfoil D’s energy-efficient motor, this fan uses minimal energy to deliver powerful airflow, creating comfortable conditions far more efficiently than air conditioning. In winter, the fan equalizes temperatures from floor to ceiling, making heaters more efficient.

By reducing existing HVAC costs by up to 30%, Powerfoil D pays for itself in no time. And with an estimated annual operational cost of just $1,030 per year (about $2.82 per day), you can enjoy the benefits of this energy-efficient fan without breaking the bank.

Airflow Mapping

Uncertain if Big Ass fans 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 people comfortable in tough conditions

The strong silent type

Feel confident your investment will continue to spin for years to come. Designed with an IP66 rating and direct-drive motor, Powerfoil D can withstand dusty, harsh, and wet warehouse conditions, while operating at a whisper-quiet level.

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.

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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.

The Low down on HVLS fans

Discover how to boost productivity by up to 30% with HVLS Fans.

A note from our biggest fans

Feel Confident you’re buying the right fan

Get a Quote today

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.