Daily Archives: March 4, 2014

A window exhaust fan is generally a popular choice for bathroom installation and they are typically found in apartments and unit blocks. In this post we will look at suitable positioning, how the fan is installed and wiring options.

A window can be a good choice of location for an exhaust fan as they are generally located opposite the door. With any bathroom exhaust fan your aim is to create a good cross flow of ventilation, allowing for the greatest amount of air circulation possible. So ‘fresh’ air enters under the gap between the door and the floor and is exhausted out via the window fan across the room. See the below diagram for an ideal setup:

If your window is poorly positioned you may wish to consider other means of exhausting, such as a wall mounted fan or roof mounted fan.

We find that most people are looking to replace an existing fan that may be very old. The process of finding a suitable replacement is simple, all you have to do is completely remove the old fan and measure the hole in mm. With this measurement you can go through our range and find the most appropriate fan. If its a new installation all you would need to do is hire a glazier to cut the required hole. Most fans come with a cutting template to assist with this.

Wiring Options for a window fan

All window fans need to be hardwired by an electrician. At Pure Ventilation you have the option of purchasing the fan with a lead and plug, meaning our technicians will install the plug to the fan. This ensures simple plug in installation like any other household appliance, such as a kettle etc. The fan can also be wired to an optional on/off wall switch (electrician required) meaning it would have to manually be turned on/off by the user. A popular choice for rental apartments is wiring the fan to the light switch. This ensures the fan is always turned on with the light, which avoids careless tennants who may not use the fan otherwise!

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