FAQ’s

Whole House Fans

How does the whole house fan work?

The whole house fan works by drawing in fresh cooler air through open windows and doors forcing the hot, stale air out through the roof space vents, thereby cooling your home naturally.

Where should I install my whole house fan?

The whole house fan should be installed in the ceiling of your home between the roof space and living space in a central location to the area you want to cool.

I have air conditioning already, what are the benefits of a whole house fan for someone like me?

Fresh air, savings in electricity bills! The whole house fan can assist the air conditioner by removing the hot, stale air from the home prior to switching on your air conditioner on the hottest days. This allows the air conditioner to work more efficiently thus saving you money.

When should I use my whole house fan?

For cooling purposes, the whole house fan should be used when the outside temperature is cooler than the inside temperature. For a healthier indoor environment use your whole house fan to bring fresh air into your home at any time.

Do the your whole house fans require any maintenance?

No, they do not.

What volume of air do the whole house fans move?

The Aussie Green has an air flow of 1858 M3H.

What does M3H stand for?

M3H stands for meters cubed per hour. This is the measurement of airflow that the fans produce.

I am familiar with the unit of measure Litres Per Second do you have a comparison?

The Aussie Green whole house fan moves 1858 M3H, which is approximately 516 Litres Per Second.

How much power does the whole house fan use?

The Aussie Green whole has fan runs on approximately the same power as a 70 watt light globe.

Is there a way to stop heated or air conditioned air from escaping my home when the Aussie Green is not in use?

Yes, the Aussie Green has an insulated damper  that closes when the fan is not in use.

I have a wind turbine already and feel that it does not make much difference, what are my benefits?

Anything that removes heat build up from your roof space is good. The Aussie Green  whole house fan will pull fresh air into your home and force the hot air in your roof space out through the existing wind powered turbine. The amount of air forced out of the roof space can be as much as 20 wind powered turbine, which you have the control of turning on or off.

How many air changes do I need per hour?

The number of air changes per hour is a personal preference however we recommend a minimum of 4 changes per hour to cool your.

I have been told that I need 30 air changes per hour to cool my home, why do you recommend less?

The reason we recommend less air changes is because our whole house fan is not designed to create a gale force wind through your home. Our whole house fan is designed to draw cooler air into your home at a steady rate making it quieter, more energy efficient and it requires less roof space venting than the higher volume whole house fans.