Window Exhaust fans

Guide To Window Exhaust Fans

Window exhaust fans are commonly used in apartment blocks and units that may have limited roofspace to work with. Practically they can be installed in any area that requires ventilation. Window fans consist of two parts which sandwich together via a hole in the glass. This provides a weatherproof seal whilst giving you the functionality to exhaust directly to the outside. Window fans are available in a wide range of sizes, with models with built in shutters, pull cords and other functionality.

The most critical consideration when deciding on which window fan to purchase will be the hole size. If you are replacing an old window fan you will need to make sure the new fan fits in the same hole size. For a new installation you will require a glazier to cut a hole in the glass for you.

Browse our range of window mounted fans below, remember to use the interactive options on the sidebar to narrow down your search based on the required parameters.

window exhaust fans

exhaust fan calculatorHow do I calculate which exhaust fan I need?

Fan suitability is usually determined by your room size and application. Generally we recommend aiming to achieve 15 air changes per hour for a bathroom, maybe 10 for a toilet. This is easily calculated, simply work out the size of your room in m3 (length x width x height in meters). You can then multiply this figure by 15 to give you an approximate capacity rating required for the fan. For your convenience all fans are measured in m3/hr. Please note 15 is our general recommendation, rooms prone to condensation may require 20-30 air changes.