Why Ventilate?

Ventilation is important in keeping New Zealand homes dry, odour-free and healthy.

Stale air, caused by cooking, smoking, steam and other odours, quickly deteriorates a room’s air quality. This in turn can increase respiratory problems and lower the comfort standard.

But with dozens of extractor fans on the market where does one even begin to look?

Purchasing the first available and cheapest option doesn't always provide the best result, as the fan often won’t be up to the challenge.

Invest some time, read the information below and explore this website to find the quality solution to your problem.

If you would rather speak to someone about your extractor fan requirements phone 0508 XPELAIR (0508 973 5247) or Locate A Stockist.

 

Why Choose Xpelair?

 

  • Xpelair fans use high quality EBM motors from Germany - the heart of the fan
  • Plastics are UV stabilised and are designed to withstand extreme sunlight, moisture and cooking fats
  • Unique designs and features - for example the DX400T styling and the "Quick Visit" delay feature
  • Over 30 years experience in the New Zealand ventilation market
  • Second to none after sales back up and service.
 

Types of Fan

 

Wall or Window Fans

 

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Ducted Fans

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Axial Fans

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Centrifugal Fans 

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What Size Fan?

Choosing the correct size fan is vital for effective ventilation.

You want to select the largest capacity fan available without causing draughts. As a general rule, 100mm fans suit toilets or laundries, 120mm fans suit small bathrooms and shower cubicles and 150mm fans are most effective in large bathrooms or kitchens. Sometimes, in very large rooms you will need a combination of extraction fans, or a fan and rangehood.

Another important factor in selecting your fan is replacement air. Generally the space between the floor and bottom of the door is adequate for most applications, including bathrooms and toilets. However high pressure applications and tightly sealed rooms may require supplementary replacement air.

To determine the best size fan for your needs follow the calculation below:

Calculate the Room Volume in Metres:
Multipy:
Length x Width x Height = Room m3

Calculate Required Performance:
Multiply the room volume by the number of required air changes. Eight to ten air changes per hour is a good starting point, or view a more detailed table below.

Select Your Fan:
Select a fan with a performance rating at least 20 percent more than what you have calculated. It is better to choose a fan with a higher rating than have inadequate ventilation.

Example:
A domestic kitchen 2.0m x 2.5m x 2.4m = 12.0m3
Recommended air changes for a domestic kitchen = 10 - 15
So Multiply 12.0 x 15 = 180m3/h
Add 20% = 216m3/h

Suggested fans:
GX Series - 266m3/h
DX400 - 245m3/h

Recommended Air Changes per Hour

Bathrooms 5-10 Living Rooms  
Cafes 10-12 Offices 4-8
Garages 3-8 Restaurants 6-10
Kitchens - Hotel or Industrial 15-20 Toilets - Public 5 min / 6 l/s/Pan
Kitchens - Domestic 10-15 Toilets - Domestic 2-3
Laundries 10-30    

If you would like assistance selecting the right size fan do not hesitate to Contact Us.

 

Fan Placement

Placement of your extraction fan is very important.

 

The fan will need to be as close to the source of the steam and as high as possible. It is best situated directly opposite where replacement air will enter the room (a door or window).

 

New Zealand building law states that fans can not be vented into the ceiling space. They must be vented to the outside.

Mains voltage bathroom fans must not be able to be reached from inside the shower or bath for safety reasons. However, an IPX7 rated, low-voltage model can be fitted, which will be moisture resistant.

Mains voltage fans may be fitted above 2.25m from the floor.

If you would like assistance with the best placement for your fan do not hesitate to Contact Us.