Product Details

More than 27 times as efficient (extraction of air measured in L/s), as a standard Whirlybird under the same wind conditions, and zero sun.  Up to 27 times more efficient when the sun is shining (in litres/s extracted). 

The iSwirl roof vent is beneficial to all homes. With higher energy prices and global climate change we all need to keep our homes cooler in summer and damp free in winter.  The iSwirl  achieves this in a vastly more efficient way than standard whirlybirds.   

iSWIRL roof ventilator has the following benefits: 

• Reduces heat build-up in the roof space 
• Saves on energy that would be used by air conditioning or conventional electric fans 
• Promotes fresh air circulation and the avoidance of mould build up 

• Good ventilation in the roof cavity prevents dampness and damage to roof timbers and the formation of mildew. 
• Ceiling insulation is less efficient when damp and adds to heating costs 

How does the iSwirl work?

1. Hot, moist and damp air sits in the roof cavity space.
2. A solar panel on the top of the unit powers a motor that is attached to a fan blade below the wind vanes. During sunlight conditions this creates significant upward force for hot and moist air to escape the roof cavity.
3. During wind conditions the wind vanes rotate causing a negative air pressure in the iSwirl. This pressure pulls hot and moist air out of the roof cavity.
4. The rotating fan and the vanes combine to create maximum upward pressure to extract hot and moist air from the roof.
5. Cool and fresh air replaces the unwanted air in the attic space.
6. The home is cooled due to the removal of the hot air which is replaced with cooler fresh air.

It is this combination of solar power and wind that is unique to iSwirl, offering far more efficient and effective air extraction than conventional whirlybird systems. The iSwirl offers the following additional benefits: 

• Runs energy free.
• Tested to AS/NZS 4740 - Natural Ventilators.
• Eco friendly.
• Variable pitch for different roof angles.
• Solar drives internal fan.
• Reduces load on air-conditioning, so lowers energy bills.
• Suitable for metal and tiled roofs.
• Easy installation, only one tile needs to be removed.
• Manufacturer Warranty

Comparison of iSwirl compared to standard whirlybirds: