We can’t imagine our lives without ventilation. It keeps the air in our houses clean and safe to breathe. Thus, for that, you need a good ventilation system. But how do you know which one to choose and where to put the ventilation fans?
Here, you’ll learn which extraction fan should be used in which area of your home. This is to avoid dampness and other impurities from building up.
Is an Extraction fan Necessary?
Stale air, dampness, and steam are all things that an extraction fan is designed to get rid of. Fresh air can be brought in through a window or other natural ventilation when stagnant air is removed. When there is a lot of water running in a room, extractor fans are used to keep condensation from forming. It also avoids structural damage and improves the air quality.
Extractor Fans: How Do They Operate?
Different types of extractor fans remove wet air in slightly different ways when it comes to airflow. Basic principles haven’t changed. A fan uses an impeller rotating within its housing to remove stale air from a room or space. A dryer-style duct is utilized to exhaust the moist air from the room. As a result of this extraction, new air can enter and fill the space.
Extractors with a variety of fan options
Extraction fan models fall into one of four categories. While each model is tailored to a certain ducting need, they can all be found in a bathroom, kitchen, or utility shed.
- Axial Fans
For airflow, axial fans use an axis motion to draw air into the fan. When the fan draws air into the duct, it creates a pressure differential that allows the air to be expelled to the outside. An external wall is the only point of contact between axial fans and the outside world. Using an axial fan, the duct run is limited to no more than 1.5 metres. Therefore, axial fans are the best option when the air does not have to travel a long distance.
These fans are the most prevalent form of extraction fan in homes. Aside from their diminutive size, these devices are normally quiet to almost completely silent when in use. Ceiling, wall, or even window-mounted you can easily install them.
- Centrifugal Fans
Secondly, when using centrifugal fans, the air is drawn in straight through the fan’s intake. As a result of this centrifugal force, it gets spun outward. Compared to an axial fan, the impeller generates more pressure since it pulls air straight into the duct shaft.
As a result, centrifugal fans are better suited for ventilating long ducts that demand greater power. An external wall of at least 1.5 meters from the bathroom is suitable for centrifugal exhaust fans. Due to the increased power of the fan, the longer ducting range results in a higher extraction rate.
Therefore, ceiling-mounted centrifugal fans are commonly used in bathrooms and large utility rooms. Apart from that, it is also installed in the kitchen or kitchenette.
- Inline Fans
Thirdly, ceiling extraction fans with inline blades are also popular extraction fans however, they are less frequent. As a result, inline fans are best used in areas where the external wall is 40 metres away. Thus, this fan is also more energy-efficient. Inline fans have a lot of power because of their extensive ducting.
- Mixed Flow Fans
An axial and centrifugal extraction fan can be combined in a mixed flow fan. There is a lot of similarity between axial fans and centrifugal fans regarding flow characteristics. Using a mixed flow fan in a kitchen or bathroom is a wonderful idea. Indeed, they can be used everywhere. For this, you need additional power and effective ventilation are required.
Conclusion:
An extraction fan is one of many household appliances that you should be familiar with by now. Thus, with better understanding of how useful they are and its uses, you can choose the right one. .
