Select From our Exhaust Fan Categories Below:
Why Use An Exhaust Fan?
There are 3 main reasons as to use exhaust fans:
- To remove impurities in the air (moisture, smells, smoke, heat etc)
- To encourage air circulation within an area
- To transfer tempered (warm/cool) air from one place to another
These factors play a part in determining which exhaust fan will be suitable for the desired application. It can also be used to help eliminate condensation and mould in moisture exposed spaces.
This is a general guide to the majority of exhaust fans. If you have any questions regarding your own exhaust solution, please feel free to email us.
Choosing The Right Exhaust Fans
New – Try our easy exhaust fan calculator
The steps required in picking out the correct exhaust fan are:
- Determine what variant of exhaust is required and how it will be mounted (eg wall, ceiling, window etc)
- calculate the area being exhausted (Length x Width x Height). This will give you a figure in m3 (cubic meters)
- multiply this with the number of air-changes required (8 for a subfloor/meeting area, 13-15 for a bathroom or toilet , 15+ for smoke exhaust). If you like to have long, hot showers or are concerned about steaming up the bathroom then please use a figure of 20 – 30 air changes per hour
- determine whether to duct directly into the roof space, duct out through the roof or through a wall/eve