Solar Whiz Applications

Where to use "Solar Whiz"

The "Solar Whiz" can be used across a large number of applications including:

  • Warehouses and storage facilities 
  • Schools
  • Day care instructions
  • Nursing homes
  • Homes
  • Sheds
  • Offices
  • Consulting rooms
  • Factories

Retrofitting is easy, but every new building should include one or more "Solar Whiz" fans to improve energy efficiency and comfort levels.

Benefits of Solar-Powered Roof Extraction

  • Cools your house  
  • Reduces build up of heat in roof space
  • Lowers the need for air conditioning 
  • Increases the efficiency of ducted air conditioning systems
  • No running cost
  • No carbon emissions
  • Operates when required (i.e. when the sun is shining) 
  • Quiet operation 
  • Simple installation 
  • Safe low voltage installation 
  • No electrician required 
  • 5 air changes per hour in average roof space
  • Optional thermostat – ensuring "Solar Whiz" only cools when roof space is warm  
  • Optional closing cover for winter to avoid undesired heat loss 
  • Reduction of moisture levels in roof space 
  • Protects against moisture damage to roof structure

Solar Powered Heat Extraction fans.

The "Solar Whiz" is a solar-powered, high performance hot air extraction system for roofs to keep them cooler in summer, which in turn keeps your rooms cooler. Conventional roof ventilators (often called Whirly Birds or Gigs) rely on the air in the roof cavity heating up first before the hot updraught starts to spin the extraction mechanism. By this stage, it is too late - the hot air has already started to heat up your rooms.
With the Solar Whiz, it starts to extract air from the roof cavity as soon as sun shines on it. This means that the liveable parts of the house are not being affected by hot air. For homes that require ventilation for condensation-related issues, the solar-powered unit can be optionally linked to your electrical circuits to operate overnight.
Key points:
  • Cools your roof space before your home gets hot
  • No running costs - solar powered!
  • Reduces or eliminates the need for air-conditioning
  • Can be ducted to extract air directly from rooms
  • 10 year warranty on PV Cell, 2 years on other parts
  • Multiple sizes/capacities available singularly for up to 300SQM roof spaces / 3000 cubic metres/hour
  • Units often used in sequence to do the smallest house up to the largest factory
Solar Whiz
Summer Comfort
Is the heat “getting” to you? Are you spending a fortune on air conditioning, or is your home (or part of your home) uncomfortably hot during summer?

The whisper quiet "Solar Whiz" is designed and manufactured according to industry standards by an experienced motor and fan manufacturer with ISO 9001 accreditation to suit Australian Conditions.

It reduces the heat load on your ceiling by removing hot air from your roof space. Installing closable ceiling vents opening into the roof space allows the "Solar Whiz" to extract hot air directly from hot rooms - a feature especially useful in multistorey homes.

You may also via ducting connect the "Solar Whiz" directly to one or more areas to extract the hot or moist air directly from there.

Why Solar Whiz?

Solar Whiz - installed on a roof tile


"Solar Whiz" is designed for durability in Australian conditions and is backed up by a substantial warranty.
10 year warranty on PV panel 2 years warranty on all other components.

Why passive/convection systems are not enough

We all know that hot air rises, but it also expands – in all directions. If you have vents in your roof space they will let warm air out. However vents only work when the roof space is already warm – and the expanding air starts radiating into your home. "Solar Whiz" starts when the sun shines on the roof – and therefore prevents the heat from building up.


Solar Whiz inside your house.

Solar WhizNot just hot air!

Reduce moisture levels: "Solar Whiz" by Home Efficiency Group is also a very effective way to reduce moisture levels in the roof space. The extraction fan removes moist air, which amongst other damaging effects, may cause condensation on the roof – and in extreme cases condensation dripping onto insulation/ceiling causing damage, such as cracking plaster and peeling paint. A "Solar Whiz" will also help prevent mould & mildew and protects the roof structure.

Heat extraction from inside the house: "Solar Whiz" by Home Efficiency Group may via a duct remove hot air from specific rooms or areas. It may also be possible to simply place vents in specific rooms and connect the vents into the roof space, which means that the replacement air for the roof space will be partially supplied through these vents.

What if my roof doesn’t face the sun?

The "Solar Whiz" can be turned to face the sun no matter which way the roof is facing – so not having a north facing roof is no problem! The adjustable PV panel mounting allows you to choose a suitable angle (up to 45 degrees) for any pitch – even if your roof faces south. 

HEG Energy - Home Efficiency GroupHome Efficiency Group
Local Call Fee: 1300 96 80 60
285 Invermay Road, Invermay TAS 7248 
1/65 Albert Road, Moonah TAS 7009