iSwirl 300 Residential Roof Ventilator

Key Features Runs energy free Uses both wind and solar  - the only wind ventilator in Australia to use both Tested to AZ/NZS 4740 Eco-friendly Variable pitch for different roof angles 24W solar panel drives internal 24V fan Removes moist  air and prevents ceiling condensation and dampness Reduces load on air-conditioning Up to 27 times more efficient than standard wind only whirlybirds* Suitable for metal and tiled roofs *As tested in lab conditions This state of the art roof ventilator will keep your home cool in summer. The unit is designed to operate with a breeze and with solar, a unique system and the only one in the Australian market. The unit has a built in fan that ensures extraction rates are far in excess of other standard roof ventilators. **Retrofit an iSwirl ventilator to your existing whirlybird ventilator. If you have an existing roof top ventilator with a throat that is 306mm (std whirlybird), simply remove the top of your whirlybird from the throat and attach the iSwirl to the throat as per the instructions. If you would like to purchase the iSwirl without the throat please select this option in the dropdown. If you find that the Throat is not the correct size, this can be purchased separately. Why Choose iSwirl 300 Residential Solar and Wind Roof Ventilator? By combining wind and solar power, the iSwirl 300 continues to extract heat, delivering more consistent performance throughout the day. Traditional ventilators slow down when wind drops — exactly when heat can build up the most. 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 300 achieves this in a vastly more efficient way than a standard whirlybird. It is more than 27 times as efficient (extraction of air measured in L/s), as a standard Whirlybird vent under the same wind conditions. Significantly more effective at heat removal 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 can add to heating costs The powerful brushless motor is dependable, long-lasting and is super-quiet The iSwirl 300 Comparison Feature Standard Whirlybird iSwirl 300 Hybrid Ventilator Power source Wind only Wind and Solar Performance in low wind Reduced Maintained Airflow consistency Variable More Consistent Heat removal Moderate Enhanced Technology Basic Patented Hybrid Design Energy use Passive Passive and Solar Assist Cooling effectiveness Limited in calm conditions Works even when wind is low