Inline exhaust systems allow high volumes of air to be ducted outside instead of in to the roof space.
The flow of air is as follows:
Internal ceiling vent – inline fan – back draft shutter – external vent.
Installation
The kit is intended as a “do it yourself” and the fan can be plugged in to an available power point in the roof space, (connected to a switch in the room). This is usually available in bathrooms, toilets and the like or an electrician could install it independent of the system installation.
How we calculate the required air volume
For good ventilation, it is recommended to achieve 15 air changes per hour in a bathroom, toilet, laundry or similar. To work this out, calculate the volume of air in the room ( length x width x height, all in meters) and multiply this by 15 to get the required air volume of the fan. Note this will be adequate in most situations. We recommend that those clients who have a lot of glass or have warmer, longer showers or simply prefer a minimum of steam/moisture get a fan with double or more the recommended capacity.
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