Many Australians rely on whirlybirds for ventilation. They’re affordable, easy to install, and widely available. But are they actually effective?
The reality is, whirlybirds often fall short of expectations—especially in larger spaces or extreme conditions. Let’s break down their limitations and explore why Solar Whiz is the ultimate upgrade for your home or business.
How Do Whirlybirds Work?
Whirlybirds use wind and natural convection to remove hot air from your roof space. While they’re a simple and passive solution, they come with significant limitations:
Low Airflow Capacity
Each whirlybird moves just 100 cubic metres of air per hour, making them suitable only for small roof spaces. In contrast, larger buildings require much higher airflow to make a noticeable difference.
Inefficiency in Still Weather
Whirlybirds rely heavily on wind. On calm, hot days—when you need ventilation the most—they provide minimal airflow.
No Temperature Control
Whirlybirds can’t differentiate between hot and cold air, which means they might extract heat during winter when you want to retain it.
Maintenance Concerns
Over time, the bearings in a whirlybird can wear out, especially if it isn’t installed level with the roof pitch. This often leads to noise and the need for frequent replacements.
Why Multiple Whirlybirds Aren’t the Solution
Adding more whirlybirds may seem like a quick fix, but this approach has its own issues:
1. Diminishing Returns: Even with multiple units, the airflow remains limited compared to active systems.
2. Roof Clutter: Too many whirlybirds can compromise the aesthetic and functionality of your roof.
3. Cost Add-Up: Installation and long-term maintenance costs increase significantly.
Enter Solar Whiz: The Game-Changer
Solar Whiz isn’t just an upgrade—it’s a completely different approach to ventilation. This solar-powered system is engineered for Australian conditions, offering unmatched performance and flexibility.
- Unrivalled Airflow
One Solar Whiz unit can extract up to 2300 cubic metres of air per hour—that’s equivalent to 23 whirlybirds. Whether you’re cooling a family home, a factory, or a gym, Solar Whiz has the power to meet your needs.
Check out our models for different airflow capacities
Link to Solar Whiz Domestic Units
Link to Solar Whiz Commercial Units
- Solar Efficiency with Hybrid Options
Powered by the sun, Solar Whiz operates without adding to your electricity bill. It continues to work even in overcast and rainy conditions—watch our video demonstrating this here. For optimal performance during the night or on particularly rainy days, Solar Whiz offers a night kit that seamlessly taps into mains power, ensuring consistent ventilation whenever you need it.
- Customised Solutions for Every Space
Solar Whiz is ideal for:
- Homes: Improve comfort and reduce energy bills.
- Warehouses, Factories, and Other Industrial Facilities: Maintain a safe, productive environment for workers and protect your machinery.
- Indoor Pools: Stainless steel units tackle moisture and prevent structural damage.
- Animal Sheds: Ensure fresh airflow for healthier livestock.
- Gyms and Indoor Sports Centres: Protect staff, kids, and customers by maintaining a comfortable environment.
- Built for Australia’s Tough Conditions
- Bushfire-prone areas: Solar Whiz comes with ember guards for added safety and the BAL-rated 40 Solar Whiz helps manage bushfire risks in fire-prone areas.
- Moisture-prone areas: Stainless steel models resist corrosion, making them perfect for humid environments.
- Smart Features for Year-Round Comfort
Optional thermostats and hygrostats give you precise control over temperature and humidity, ensuring your space stays comfortable and energy efficient.
Real-World Results with Solar Whiz
- LHM Fabrication & Fencing
In Broome, Western Australia, LHM Fabrication & Fencing faced intense heat and hazardous welding fumes in their warehouse. Solar Whiz addressed these issues by installing a combination of roof-mounted and wall-mounted fans, creating a safer and more comfortable work environment. The solution improved air circulation, effectively reducing fumes and heat, significantly enhancing staff productivity. Read the full Solar Whiz case study here.
- Moddex – Handrails & Balustrades
At Moddex’s facility in Boronia, Victoria, ineffective industrial whirlybirds failed to provide adequate ventilation. Solar Whiz stepped in with a system of three SW-AU-C-155, designed to handle welding fumes and heat in their sealed building. This upgrade resulted in a safer workplace and year-round comfort for employees, while also enhancing productivity. Read the full Solar Whiz case study here.
See more success stories here.
Don’t Fall for the Whirlybird Myth
Whirlybirds are often seen as a simple, cost-effective solution. But when it comes to real performance, they don’t stack up. Solar Whiz offers:
- Far superior airflow.
- Better energy efficiency.
- Durability and flexibility for all types of spaces.
Take the Next Step
Don’t settle for outdated solutions. Upgrade to Solar Whiz today and experience the difference.
Call us now for expert advice and a free quote.
Browse our products and find the perfect fit for your space.
Get started on transforming your home or business with state-of-the-art ventilation.
