Inline Extractor fans, also known as Inline duct fans, are remote fans which can provide ventilation from a room or rooms with little detectable noise.
Inline fans can be either axial or centrifugal, and are commonly housed in the loft space above the bathroom between 2 lengths of ducting. The advantages of these are that as the motor is housed away from the room being ventilated, in an uninhabited space, the sound is dampened by the ceiling, meaning they can be more powerful than wall mounted fans but not any noisier, and usually in fact much quieter. Obviously not all installations, due to space restrictions, are suitable for inline fans. Inline fans therefore provide a solution to noisy or ineffective bathroom wall or ceiling mounted fans.
As they are usually more powerful than wall or ceiling mounted fans, they are also suitable to be ducted over greater distances, suitable if the room to be ventilated is a long way from an outside wall or roof. Another way that inline fans can be useful is in boosting the extract rate of a standard ceiling mounted fan. If the duct run is too long to be effective, an in-line fan inserted in to the duct run can boost flow capacity.
If bathroom extractor fan noise is a problem, an in-line fan housed in the loft will operate much more quietly than a typical fan located in a bathroom ceiling. However, just because you have a noisy fan, do not just go and replace it with an inline fan! First check that the noise being created is not due to poor installation. First get an electrician to check it has been properly fitted and the duct has been attached correctly.
In layouts where bathrooms are close together, it may be cost effective to use a single in-line fan with duct runs connecting to each room.
As will all extractor fans, the source of air into the bathroom is also critical to the performance of the fan. You could fit the best and most powerful fan in the world, but it will have very little effect if there is no replacement air coming into the room. If the fan is extracting air from a room with no windows, and the door has been fitted extremely closely to the floor so that no air enters the room, the fan can create a vacuum, meaning that no air moves at all, causing dampness and mould. Doors or windows should therefore be left open, even if only a little, wherever possible, or ventilation grilles fitted.
Please see the Vent Axia ACM100T for more information.
Inline fans can be either axial or centrifugal, and are commonly housed in the loft space above the bathroom between 2 lengths of ducting. The advantages of these are that as the motor is housed away from the room being ventilated, in an uninhabited space, the sound is dampened by the ceiling, meaning they can be more powerful than wall mounted fans but not any noisier, and usually in fact much quieter. Obviously not all installations, due to space restrictions, are suitable for inline fans. Inline fans therefore provide a solution to noisy or ineffective bathroom wall or ceiling mounted fans.
As they are usually more powerful than wall or ceiling mounted fans, they are also suitable to be ducted over greater distances, suitable if the room to be ventilated is a long way from an outside wall or roof. Another way that inline fans can be useful is in boosting the extract rate of a standard ceiling mounted fan. If the duct run is too long to be effective, an in-line fan inserted in to the duct run can boost flow capacity.
If bathroom extractor fan noise is a problem, an in-line fan housed in the loft will operate much more quietly than a typical fan located in a bathroom ceiling. However, just because you have a noisy fan, do not just go and replace it with an inline fan! First check that the noise being created is not due to poor installation. First get an electrician to check it has been properly fitted and the duct has been attached correctly.
In layouts where bathrooms are close together, it may be cost effective to use a single in-line fan with duct runs connecting to each room.
As will all extractor fans, the source of air into the bathroom is also critical to the performance of the fan. You could fit the best and most powerful fan in the world, but it will have very little effect if there is no replacement air coming into the room. If the fan is extracting air from a room with no windows, and the door has been fitted extremely closely to the floor so that no air enters the room, the fan can create a vacuum, meaning that no air moves at all, causing dampness and mould. Doors or windows should therefore be left open, even if only a little, wherever possible, or ventilation grilles fitted.
Please see the Vent Axia ACM100T for more information.