FAQ’s

Whole House Extractor Fans – FAQ

How does the whole house fan work?

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

Is  your  Aussie Green  WHF  1858 whole house fan easy to install?
Yes,  weighing in at 6.8 kgs, moving it about and fitting the Aussie Green Whole House fan is a breeze,   No power tools or special equipment are required.

Do I need an electrician?
Air Exchange A/sia P/L recommends a licensed electrician.

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.

How long does it take to install?
Approximately 1-2 hours.

Do you have an installation guide?
Yes, An installation guide is provided within the product box and is easy to follow.

Do I need to install roof vents?

Adequate net free air space is required for the  Aussie Green WHF 1858 to operate effectively , this being only 0.134 m2  in your total roof space. For a newly constructed home with sarking  it is recommended  that additional vents be placed on the roof, for a home with out such material it it very likely that you will not require any additional venting.

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.

You may even decide that air conditioning is no longer required as you have experienced many air changes and are feeling comfortable.

I have an evaporative cooler can I have a whole house fan.

Unlike the evaporative cooler the whole house fan reduces  the entire building core temperature, roof space and living space. and with no maintenance cost by the time you have changed your V belt on your evaporative  cooler a few times your Aussie Green Whole house fan would be paid for.

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 and to remove indoor air pollution use your whole house fan to bring fresh air into your home at any time.

Can I use a whole house fan in a two story home?

Absolutely, positioned in a central point of the second story, the whole house fan will draw cooler air from the bottom story of your home purging all that hot, still and stuffy air into your ceiling space and then out to atmosphere.

If you sleep upstairs in your home and when you decide it is time to go to bed you can close all your down stair windows and open all your up stair windows increasing the air flow through your upper floor so you can sleep well  and rest easy that you won’t be spending  a fortune running your air conditioning.

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 Liters Per Second do you have a comparison?

The Aussie Green whole house fan moves 1858 M3H, which is approximately 516 Liters 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 73 watt light globe, that is an unbelievable 0.073KWH !!

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.

Can I duct my whole house fan to the outside?
This is not recommended as there is a significant decrease in air flow when ducting is used to exhaust the fan.

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.

I have a roof exhaust fan can I have a Aussie Green whole house fan?

Yes no problem.

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 home.

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

The Aussie Green WHF1858  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.

Air changes  at very high flow rates  can bring unnecessary items into your home such as large leaves, pollen and large amount of dust…yuck!

How do I receive my Products?

ALL Products leave our store  Between 8:00 am -9:30 am Monday through Friday and are shipping to your specified address by registered Courier.

You will need to sign for your products as the shipment is insured to the vale of your goods.

Upon purchase you will receive an email with a consignment number for your product so you can track your parcel