How a Wall Mounted Extractor Fan Works

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How a Wall Mounted Extractor Fan Works

Wall mounted extractor fans are often found in bathrooms, kitchens, and small water closet areas. But if you've ever looked up and spotted one on the wall, you may have asked "how does that work"? Well, you're in luck! Here at AirConCentre we aim to answer all your questions such as "Can you install your own extractor fan?" and "What rooms are suitable for a wall mounted extractor fan?"


What is a wall mounted extractor fan?

A wall mounted extractor fan is an essential device that helps to get rid of unpleasant odours, steam, and heat from a room and makes the space more comfortable to be in. It has a simple design and is installed on the wall where it can work efficiently to improve the air quality in your kitchen or bathroom.

Wall mounted extractor fans work well in spaces where ceiling fixtures are tricky to install or where there's limited vertical space. It's a smart investment that enhances air quality in the two most frequently used rooms at home, making life more pleasant and healthier.


How does a wall mounted extractor fan work?

A motor drives a fan inside the casing which is mounted on the wall. This fan pulls in air from the room, passes it through a duct, and expels it outside.


What is needed for a wall mounted extractor fan to operate efficiently?

Having a wall extractor fan in your kitchen or bathroom can be a game changer for reducing moisture and unpleasant odours. However, there are a few key things that are needed for a wall mounted extractor fan to operate efficiently.

  1. It is important to ensure that the fan is vented outside to allow the moist air to escape
  2. The fan needs to have sufficient power to move the air and eliminate any unpleasant smells
  3. The air duct needs to be adequately sized and of high quality
  4. Regular maintenance is essential to keep the fan running smoothly

Where does the exhausted air go?

an image of an extractor fan vent outside a building

Have you ever wondered where the air goes when you turn on your wall mounted extractor fan? It's important to ensure that this exhausted air gets directed outside to prevent it from circulating back into your home. After all, the whole purpose of having an extractor fan is to remove stale, humid air and replace it with fresh clean air.

Generally, the exhausted air gets vented outside through a duct or vent system. If you're not sure where your fan directs the air, you can either inspect it yourself or hire a building inspector to do the check for you.

A properly functioning extractor fan not only removes unwanted odours and moisture, but it also helps keep indoor air healthy and free from allergens.


Does the exhausted air need to be vented outside?

Yes, you should always vent the air outside to ensure proper ventilation and prevent any potential health hazards. Wall mounted extractor fans are designed to improve the air quality in your home by removing excess moisture, cooking fumes, and other pollutants from the air.

There are a few reasons why the exhausted air cannot be vented in the house:

  1. The air is full of moisture and can cause mould growth if it gets trapped inside the house.
  2. Cooking fumes can linger in the house and cause discomfort or health issues such as allergies, headaches or respiratory problems.
  3. It is not advised to vent the air into the loft space, as it can saturate the insulation and significantly reduce the R-value (the insulation's effectiveness).

Can you install your own extractor fan?

an image of an extractor fan on a wall

Yes, if you have the skill necessary to disassemble the old one and fit the new one in.

According to the law, it is essential to ensure that you are "competent" not only in DIY tasks but also in handling electrical equipment. Failing to meet these standards could lead to complications with your insurance provider and potentially invalidate your current electrical certificate if the work does not go as planned.

Extra caution is essential when handling electrical devices in wet areas, such as bathrooms and shower rooms.

However, if DIY isn't your strong suit or if the task involves intricate electrical work, it's advisable to hire a qualified professional. Their specialised knowledge and experience in electrical installations ensure the job is done safely and effectively.


What is the difference between wall mounted and ceiling mounted?

While both wall mounted and ceiling mounted extractor fans are effective in removing unwanted fumes and steam from a room, there are significant differences between the two types.

For instance, wall mounted extractor fans are designed to be installed on the wall and typically offer more efficient ventilation for smaller rooms such as a kitchen or bathroom. On the other hand, ceiling mounted extractor fans are often installed in larger bathrooms or other areas where wall space may be limited. They are usually more powerful and can handle a larger volume of air.


Different types of wall mounted extractor fans

There are different types of wall mounted extractor fans available on the market, each designed to suit specific needs. Some popular options include axial and centrifugal fans, which differ in terms of airflow direction and efficiency. Additionally, there are also models that come with timers or humidity sensors for added convenience and energy savings.

  • Axial fan: This type of fan is ideal for smaller spaces and can be easily mounted on the wall. It works by drawing air in parallel to the shaft and then expelling it out through the blades.
  • Centrifugal fan: These fans are more powerful than axial fans and are best suited for larger rooms or areas that require stronger ventilation. They work by drawing the air in at right angles to the shaft and then expelling it through a curved fan blade.
  • Timer controlled fan: This type of fan comes with a timer that allows you to set how long the fan will run for before automatically shutting off. This feature is useful for situations where you may want to leave the fan running for a certain period, such as after taking a shower.
  • Humidity controlled fan: These fans come equipped with a humidity sensor that detects excess moisture in the air and turns on the fan automatically to eliminate it. This feature not only helps keep your home free from mould and mildew but also saves energy by only running when necessary.

Best axial fan

Transform your bathroom with the Xpelair C4TSR Two Speed 100mm Axial Fan with Timer with Combined Square/Round Baffle Front. This innovative fan is equipped with timer functionality, making it the perfect addition to any modern bathroom. The Xpelair C4TSR is also incredibly easy to install, which means you won't have to rely on costly installation fees or complicated instructions. The combined square/round baffle front adds an extra layer of aesthetic appeal, making it easy to seamlessly incorporate into any bathroom design.

Best axial fan

When it comes to keeping the air fresh and clean in your bathroom, toilet, cloakroom, or utility room, the Manrose CF100H 100mm 4 Centrifugal Extractor Fan with Humidistat has got you covered. This powerful extractor fan has an impressive extract rate of 90m³/hr, ensuring that stale air is quickly and effectively removed from the space. It also features a humidistat, which means that it will automatically turn on when the humidity levels in your room rise, ensuring that excess moisture is removed before it causes any damage. Designed with both functionality and style in mind, the Manrose CF100H is a must-have for any home that prioritizes a clean and healthy living environment.

Overall

The Envirovent Silent 100mm with Adjustable Timer - SIL100T is the ultimate solution for those who seek a whisper-quiet, yet efficient ventilation system that effectively manages the indoor climate. This innovative fan is engineered with silent running technology, requiring only 26dB(A) when operational, creating little to no noise. But that is not all. It's built with a backdraft shutter, which limits the heat leakage and ensures optimal temperature regulation, allowing for excellent energy-saving capabilities.


What rooms are suitable for a wall mounted extractor fan?

Wall mounted extractor fans are like the unsung heroes of your home! Whether it's your kitchen, bathroom, laundry room, or cellar — any space battling excess moisture or pesky odours will thank you for having one. They're not just for homes though; workshops and utility rooms love them too to banish fumes and keep things fresh!


A wall mounted extractor fan is an essential addition to any home, helping to improve indoor air quality and prevent potential health hazards. From removing unwanted odours and moisture to saving energy with timer and humidity sensor options, there's a fan for every need.