Silent fan for exhaust ventilation. Duct silent fans for exhaust hoods: existing types of devices and their operating parameters


It is traditionally believed that the ventilation system is noisy. In fact, this is not always the case. The silent duct fan with a special sound-absorbing design operates very quietly, so it can be installed even in rooms where special requirements are placed on silence.

Why does a silent hood fan work quietly?

Silent duct fans for hoods they have a special body structure. It is made of plastic or metal with special noise-absorbing perforation, or with glued soundproofing material. On inside The device contains a soft layer that prevents vibration and does not allow sound to spread from moving air. In addition, the special shape of the blades allows you to direct the flow without whistling.

Many manufacturers offer silent duct fans, the price of which often depends not only on quality and efficiency, but also on the degree of brand promotion. Our store offers a selected range of fans, the cost of which is fully justified by their quiet operation and reliability.

Benefits of a silent design

To achieve quiet operation, the fan design is adjusted with maximum precision. Thanks to this, such a system received additional advantages:

  • high air intake efficiency;
  • minimal energy consumption;
  • long service life;
  • smooth speed control;

Thanks to its thoughtful design and quiet operation, it is quite possible to install it in a room or bedroom, not to mention commercial and industrial facilities.

For which air duct can you buy a silent duct fan?

The most popular are silent fans for hood 100 mm. They are suitable for round ducts with a diameter of 100 mm. Since the electric motor ensures efficient air injection, even the minimum throughput of the channel is enough to ensure freshness in a spacious room. They are usually chosen for installation in apartments because they have a small air duct that can be hidden behind a false ceiling or wall.

For installation in commercial and industrial premises Silent fans for hoods of 125, 150, 160, 200, 250 and 315 mm are used. Their productivity is much higher, which allows for a more intense flow. For home needs, silent 150 mm hood fans are usually chosen. This power is quite enough for a cottage and other low-rise buildings.

Original fans at a good price

In our store you can buy silent duct fans for extractor hoods from leading manufacturers. We are confident in the quality of the presented range, so our customers have access to reliable and efficient devices that can last for many years. We always have favorable prices, so by choosing our store, you can purchase equipment that will provide clean air With minimal costs.

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High-quality equipment with equipment in this category will help organize admission fresh air and removal of contaminants at minimal cost. An additional bonus is the absence of uncomfortable sounds. In today's review we will look at household ducted silent fans for extractor hoods. It contains information that will simplify the selection of the optimal model and help you complete the installation yourself.

Electrical installation work is performed with the power turned off. Conditions must be ensured in which accidental voltage supply is excluded. To check the phase, use a specialized indicator “screwdriver” or.

The photo shows an example of durable and quick fastening to "liquid nails". However, it must be taken into account that dismantling the structure in this option will be difficult. For this reason, it seems preferable to use conventional self-tapping screws.

The external installation method allows you to move the noise source outside the residential area. In this case, it is permissible to use a high-performance fan for an industrial hood.At the final stage, a decorative and protective cover is installed. A test run checks functionality. Install required settings timer and other electronic components.

How to extend the life of a duct fan

Careful sealing of cracks will prevent the accumulation of dirt, the formation of mold, and other colonies of harmful microorganisms. The cover should be removed regularly for cleaning. The frequency of the procedure is determined taking into account specific conditions. In the most difficult situations complete dismantling will be required. The screw fastening noted above comes in handy here.

For your information! Some models require mandatory replacement of fine filters.

Is it possible to repair a duct fan yourself?

The possibility of restoring functionality depends on the nature of the breakdown and the qualifications of the performer. In a 200 mm duct fan (and in general of any diameter) it is not difficult to replace a damaged mesh partition, individual elements fastenings, typical electronic parts, switches, indicators. Not too hard to do with my own hands decorative panel in exact accordance with individual requirements.

Rewinding of electric motor coils is carried out using special equipment. It is better to entrust such a task to specialists from a specialized workshop. The second acceptable option is to install a new power unit with similar technical characteristics. Assembly is performed with precise alignment of the impeller.

Prices, characteristics of modern models, recommendations for the right purchase

Brand/ModelPower consumption, WProduce
duration, cubic meters/hour
Price, rub.Peculiarities

To ensure forced air exhaust from the room, various types of fans are used. They are used when it is necessary to get rid of excess humidity, unpleasant odors, or simply create the desired microclimate. Silent duct fans are installed directly into the air duct and are effective for use in the bathroom, toilet or kitchen.

Different device models may differ significantly from each other in a number of characteristics. For example, there may be differences in the shape of the body:

  1. – mounted in round ventilation ducts, they are the most common option for use in the kitchen or bathroom.
  2. Rectangular duct fans – installed in ventilation shafts with a rectangular or square section. As a rule, industrial fans are rectangular in shape and are characterized by increased power work.
  3. Square - just like rectangular axial exhaust fans, they are designed for installation in a square duct shaft and differ high power work. They are also often used for industrial purposes.

Duct air exhaust devices are distinguished by design features.

Axial– have a cylinder-shaped housing, inside of which there is a fan with blades mounted on the axis of an electric motor. With this design, air masses move along the axis of the device, and a special collector is often installed at the inlet, which improves the aerodynamic characteristics of the device. The advantages of axial fans for exhaust hoods include a fairly high efficiency - over 100 m³ of air per hour.

In addition, axial models are characterized by ease of installation, so they are often installed in ventilation openings in bathrooms or kitchens. The disadvantages include low pressure characteristics and high noise levels - approximately 30-50 dB.

Radial– have a spiral casing, inside of which there is a blade wheel. When it rotates, air masses move in a radial direction, the air is compressed under the action of centrifugal force and leaves the housing. The blades of the radial device can be directed backwards or forwards; in the first case, during operation, savings amount to up to 20% of electricity, and the noise of the device is significantly reduced. Forward curved blades increase the fan's power. Radial models have compact dimensions, so they can be easily installed in almost any air duct.

Centrifugal- relatively new model, which has already gained great popularity among users. Centrifugal exhaust fans are well suited for installation in rooms whose area exceeds 15 m²; they are characterized by high power and almost silent operation. The advantage of a centrifugal fan is that it can be installed not only in front of the air intake, but also in the middle ventilation shaft.

Useful advice! If you prefer a centrifugal fan, then it is better to install it directly in the ventilation shaft, so its operating efficiency will be much higher, and condensation will not accumulate on the device and dust will not settle.

There are also specialized models such as fans for smoke removal and explosion-proof fans. Axial smoke removal fans are designed to move air masses that contain a certain amount of impurities. This good option not only for industrial premises, but also for kitchens where large volumes of food are often prepared. In addition, these models of hoods are very powerful and allow as soon as possible remove steam and smoke from the room.

An explosion-proof axial fan is designed, first of all, to organize forced exhaust of air with flammable or explosive impurities. Such models are rarely used in everyday life, but are very popular in enterprises where there is an increased risk of fire or work with explosive substances.

What parameters should you pay attention to before buying an exhaust fan?

Before you buy exhaust device, which will ensure the forced movement of air masses in the bathroom, toilet or kitchen, you should pay attention to the following parameters.

Fan performance. This parameter is calculated using a fairly simple formula. To do this, you need to multiply the volume of the room by the air exchange rate. The last indicator means the number of air changes per hour. The multiplicity directly depends on the type of room and is 6 for a bathroom used by up to 3 people, 8 for more than three and up to 10 for a toilet.

At the same time, when choosing a silent fan for an exhaust hood, always choose a product with slightly higher performance. For example, the performance of a device installed in a bathroom should be 95-100 m³/h.

The amount of noise produced by the device during operation. Any one always produces mechanical and aerodynamic noise. The first is the noise from the operation of the electric motor, created by its vibration, which is transmitted to the air duct, the second is the noise from the movement of air masses. Silent duct fans are models whose operating noise does not exceed 25 dB. An indicator exceeding the threshold of 35 dB is already noticeably annoying, so it is not worth installing a device with such characteristics in a residential area.

A silent duct fan can be made even quieter by installing a special muffler immediately behind the housing, and also by finishing the ventilation shaft with a material with high sound-insulating characteristics.

Design safety. This refers to the level of protection against moisture and dust. This is especially true if you purchase a duct fan for rectangular duct into the bathroom or kitchen, where it inevitably forms high humidity. Moisture getting inside the case can cause a short circuit, so it is better to immediately purchase models with water protection. In addition, purchasing a device that operates at a low voltage of 24 V can provide additional protection.

Hood functionality. This refers to the fan operating mode - automatic or standard. Standard axial supply fans turn on when the room lights are turned on and are well suited for rooms where the humidity level is not too high. Otherwise, the device simply will not cope with air extraction. The automatic hood is equipped with a timer that turns the device on and off.

In addition, the automatic fan design can include a humidity sensor, which is very convenient for the bathroom. The price of an axial fan for an exhaust hood will be higher than a standard one, however, such improvements will allow you to more effectively and quickly get rid of excess humidity in the room.

Quality of the device. If you need a really high-quality exhaust fan, then you should pay attention to ensuring that it meets international standards. For example, the minimum acceptable protection class for a device is IP 34.

When choosing a range hood device, give preference to models that have already proven themselves in the market and are popular among buyers.

Choosing a fan for a kitchen hood

A device installed in the kitchen differs somewhat in its characteristics from a fan that is suitable for installation in the bathroom. The main difference is that the kitchen is the source of odors. Therefore, if you do not want odors from the neighbor’s apartment to penetrate into the kitchen, it is recommended to install a model with check valve. This design will prevent air from entering the room when the hood is turned off.

Also, when buying an exhaust fan for the kitchen, pay attention to the fact that it can withstand the impact high temperatures and high humidity. This is especially true if you install the device in close proximity to kitchen stove. Control kitchen hood can be done using the remote control remote control, a special cord, and it is also possible to turn on simultaneously with the lighting. It is most convenient to choose the remote option. You can also purchase a model with a built-in presence sensor, which will be triggered when you enter the room.

Related article:


Types and features. Selection parameters, types of industrial models. Installation features. Review of popular manufacturers.

Instead of a ducted supply and exhaust axial fan for the kitchen, a type of hood such as a window hood can also be used. A household window exhaust fan differs from other models in that it is built into the window structure or even embedded directly into the glass. The disadvantage of this option is drafts in the room if its design does not provide a check valve. Today, window fans are not very popular, giving way to more convenient duct models.

Price of silent duct fans 100 mm and other models

The cost of an air exhaust device depends on many factors, for example, its size, power, performance, and the material from which the body is made. Thus, devices in a steel case are several times more expensive than those in a plastic case. On average the price household fan in a plastic case for a hood in the bathroom, kitchen or toilet starts from 1000 rubles. More complex models designed for operation at high and low temperatures, for high pressure and other extreme conditions, can cost 2000-3000 rubles or more.

Exhaust fans with check valve and others additional functions also cost more than standard models.

Installation of a silent domestic exhaust fan

Before proceeding with the installation of the device, it is imperative to check the functionality of the ventilation system in the room. To do this, you need to bring a lit match or attach a sheet of paper to the ventilation hole. In the first case, the flame should deflect towards the exhaust, and in the second, the sheet should be held on the hole due to the air flow. If this does not happen, then you definitely need an exhaust fan, since air will not be removed from the room naturally.

After this, you should decide on the place where the axial fan will be installed for exhaust ventilation or another model. It is best to mount the device under the ceiling, since hot and humid air always rises.

Useful advice! You should also choose the type of fan based on the installation location. Not every model is suitable for installation, for example, in a horizontal position or at an angle.

When installing the device, the following points should be taken into account:

  • It is best to start installing the fan during the repair process;
  • the wiring that goes from the power source to the hood should be hidden in a special box or even run under the plaster;
  • If we're talking about about the fan in the toilet, it is most convenient to connect it directly to the light switch;
  • if you want to reduce the level of vibrations and also protect the supply and exhaust fan from external influences, then you can mount the device in plastic pipe, previously fixed in vent using cement, polyurethane foam or construction sealant;

  • in the toilet, the greatest efficiency of the fan will be ensured if it is installed under the ceiling directly above the toilet;
  • To ensure an error-free connection of the device to the electrical network, you should first read the instructions supplied with it.

Axial connection supply and exhaust fan is done extremely simply:

  1. The protective cover is removed from the device body.
  2. A special adhesive mixture is applied to the fan.
  3. The device is installed in the place prepared for it, pressed tightly for several minutes.
  4. The protective cover is screwed into place.

Remember that the device must fit as tightly as possible to the walls of the air duct, otherwise during operation it will hit them, which will not only lead to increased level noise, but also to premature failure of the device and the need for repair or replacement.

It is also very important to choose a model that will closely match the size to the diameter. ventilation duct. For example, if it is 10 cm, then you will need a 100 mm duct fan model for the hood.

Silent duct fans: care features

In order for the hood to last as long as possible, you should follow certain rules operation and regularly carry out preventive inspection and cleaning of the device. Most often it is necessary to clean from dust and dirt ventilation grille and fan blades. In addition, when installing a 125 mm silent duct fan or another model, it is necessary to check the air duct for tightness of the joints. It is in the cracks that dirt most often accumulates, fatty deposits form, and bacteria, fungus and mold multiply.

Blockages in the air duct can be removed mechanically or chemically. In the first case, special brushes or simply pieces of fabric are used, in the second, cleaning products are used. In particularly advanced cases, it is recommended to remove the fan and completely disassemble it, thoroughly cleaning all parts. Also for more efficient and reliable operation Filters should be changed regularly, if such a possibility is provided for in the design. It doesn't matter whether it's about axial fan VO 06 300 or another model, systematic cleaning is necessary in any case.

Useful advice! To reduce the need for major cleaning of the device, install a fine mesh on the air duct inlet. This way, you will protect the fan blades from dust and dirt particles getting on them.

Organizing the forced movement of air masses from the room is very important if there is high humidity in the room or there are unpleasant odors. It is highly recommended to install a duct fan in the bathroom, toilet and kitchen. The type of device is selected based on a number of characteristics discussed above.

Updated: 09.19.2019 11:10:35

Expert: Boris Mendel


*Review of the best sites according to the editors. About the selection criteria. This material is subjective in nature, does not constitute an advertisement and does not serve as a purchase guide. Before purchasing, consultation with a specialist is required.

Maintain an optimal microclimate in homes and production premises Duct fans allow. They represent electrical appliances, consisting of a housing, a motor and an impeller. The main task of a duct fan is to move air masses along ventilation lines. This could be removing polluted air from a room or organizing an influx of masses from the street. In each specific case, a device with a certain set of technical characteristics is required. Expert recommendations will help you make the right choice.

How to choose a duct fan

  1. Size. First of all, you should decide on the size and shape of the bends. The easiest way to do this is when the ventilation system is already installed. For round pipes a duct fan with outlets of the same shape and suitable diameter is selected. In the case of square or rectangular shafts, it is better to buy appropriate fans.
  2. Performance. Second important parameter is performance. IN technical specifications an indicator such as air exchange is indicated. It can range from 100-2000 cubic meters. m/h. For a private home, a duct fan with a capacity of 100-500 cubic meters looks optimal. m/h. But for retail and commercial premises, more powerful models are required (1000-2000 cubic m/h).
  3. Engine power not always directly proportional to productivity. The more powerful the motor, the easier it is for it to pump air, the less the load on its components and parts. The power range ranges from 10 to 500 W; it is better to choose models with a small margin. For example, if the project specifies a 130 W fan, then it is optimal to install a 150-160 W model.
  4. Noise level. For residential premises, a pressing problem after installation ventilation system The device may become noisy. Manufacturers indicate the noise level in dB (15-100). Many users, in their experience, consider electrical appliances with a noise level of up to 40 dB to be low-noise models. A higher sound load becomes annoying, especially when the duct fan is located directly in the room.
  5. Materials. As for the materials used in the manufacture of devices, manufacturers most often use plastic and metal. Steel casings and impellers are considered more reliable, but they weigh more and are more expensive. Plastic products benefit from silent operation, lightness and low price. Owners of private houses prefer to buy them, despite their lower strength.

Our review includes the 7 best duct fans. When compiling the rating, the opinions of the expert community and reviews of domestic consumers were taken into account.

Rating of the best duct fans

The VENTS TT Silent-M 200 duct fan perfectly combines high performance (1020 cubic m/h) and low noise level (36 dB). Experts highly appreciated the waterproof design of the steel case with polymer coating. Thanks to the special design of the impeller, the model is quite economical in energy consumption. Optimal combination all technical parameters allowed the device to become the winner of our rating.

Users pay attention to the ability to tilt and rotate the duct fan. They confirm the silent operation of the device, a sealed terminal box, and motor overload protection. The disadvantages include the absence of a regulator for external control of the rotation speed.

Advantages

  • high performance;
  • tilt and swivel functions;
  • moisture-proof design;
  • motor overload protection.

Flaws

  • lack of external control.

Soler & Palau TD-350/125 SILENT

The Spanish duct fan Soler & Palau TD-350/125 SILENT is somewhat inferior in power to the winner of the rating. The model is ideal for small system ventilation in a private house. Its capacity is 360 cubic meters. m/h. Experts consider the main advantage of the device to be silent operation (20 dB); the installation diameter is 125 mm. The housing has reliable protection from moisture, high-quality sound insulation does not allow the sound of rotating blades to penetrate living rooms. The model has 2 speeds, the rotation mode changes in steps.

Professional plumbing system installers note the durability of the fan. Some products installed by them have been working without interruption for more than 8 years. Only a high price can be included as a liability.

Advantages

  • silent operation;
  • high-quality assembly;
  • durability;
  • good protection from moisture.

Flaws

  • high price.

The Ukrainian duct fan VENTS TT PRO 200 was included in the top three ratings for its affordable price and excellent air exchange (1040 cubic m/h). Powerful motor (108 W) creates high flow intensity. The installation diameter of the device is 200 mm. The model has compact overall dimensions and light weight (3.95 kg). The moisture-proof design of the case makes the device durable. The fan has two speed modes, which allows you to customize the ventilation system to suit your needs.

In front of everyone positive qualities models, she also has significant drawback. The fan produces a loud whining sound (52 dB) when operating. Many users find it annoying, but they note the combination of affordable price and high performance.

Advantages

  • reasonable price;
  • waterproof housing;
  • high intensity of air exchange;
  • compactness and lightness.

Flaws

  • loud howling sound.

The Soler&Palau OZEO-E multizone unit is designed for organizing ventilation consisting of several shafts. The duct fan is designed for large private homes and commercial buildings. You can organize exhaust hood from bathrooms and kitchen areas with high level humidity. The diameter of all pipes is 125 mm. The manufacturer completes the model with three plugs, with which you can block the openings of the suction pipes. Its modest performance (420 cubic meters per hour) did not allow it to take a place in the top three in the rating.

Users are satisfied with the performance of the multi-channel Spanish fan; it does not create much noise during operation (38 dB). For ease of use, it is better to purchase an additional regulator from the same manufacturer.

Advantages

  • multi-channel design;
  • moisture-proof design;
  • quiet work.

Flaws

  • modest performance.

The German duct fan Blauberg TURBO is available in six different modifications. They differ in productivity (137-1750 cubic m/h), and are united by moisture-resistant design and high-quality assembly. The device body is made of impact-resistant plastic, the diameter of the air ducts depends on the version (100-315 mm). Thanks to the special design, the motor-impeller block can be removed without dismantling the entire device. The two-speed single-phase motor has overload protection; the fan is controlled using a built-in switch. It is possible to connect an external regulator.

The model could not take more high place in the rating due to noise (47-56 dB). The price also deters potential buyers.

Advantages

  • wide choice of designs;
  • ease of maintenance;
  • two-speed motor.

Flaws

  • noisy work;
  • high price.

For ventilation of rooms with different levels humidity, the Bulgarian model MMotors VOK-T is suitable. But the main advantage of the fan, according to experts, is heat resistance. The device body and its impeller are made of aluminum alloy, some modifications are equipped with a fan made of heat-resistant polyamide. The maximum temperature is limited to 180°C. The electric motor runs quite quietly thanks to special ball bearings. The manufacturer guarantees up to 30,000 hours of trouble-free operation both when installed in horizontal and vertical positions.

User reviews criticize the duct fan for its low performance and limited duct diameter. The model occupies sixth place in the rating.

Advantages

  • metal case;
  • heat-resistant impeller;
  • low noise level.

Flaws

  • poor air exchange;
  • small range of installation diameters.

The Ballu FLOW 125 duct fan is sold on the Russian market at the most affordable price. In addition to the attractive price, experts note such an advantage of the device as a low noise level (30 dB). The compact model is designed for installation in a pipeline with a diameter of 119 mm. By using plastic, the manufacturer managed to create one of the lightest duct fans (1.5 kg). The device comes last in our rating, because in terms of its main parameters it is inferior to its competitors. Thus, the air exchange rate is only 240 cubic meters. m/h, and among the additional options, only two-speed engine mode can be noted.

Users carefully examined the fan, finding it weaknesses. The main ones are the motor core and stator. They become dirty over time, causing the device to fail.

Advantages

  • compactness and lightness;
  • low price;
  • low noise level.

Flaws

  • The internal components of the motor are not protected from dust and moisture.

Attention! This rating is subjective in nature, is not an advertisement and does not serve as a purchase guide. Before purchasing, consultation with a specialist is required.