Window fan: reversible, exhaust and axial options, use of a design with a lid in cold weather, a hole in the double-glazed window for household models

An electromechanical device that provides forced exchange of air mass between indoors and outdoors. The result of the process is an influx of fresh air, removal of unpleasant odors, dust, reduction of humidity and adjustment of internal temperature balance. The drive is an electric motor operating from a stationary power supply of 220 volts. The principle of operation is pumping air by capturing portions of the air mass with an impeller and releasing it in one direction or another. Installed in a vent transom or window frame. Selection criteria: power, performance, speed, noise during operation.

Peculiarities

A window fan is a compact device that is light in weight. It is fixed in the window opening and serves as a means of improving air circulation. Depending on the power and other technical characteristics, with the help of this device it is possible to organize both full ventilation of the entire room and a ventilation system in individual stagnant zones.

The power of such fans is sufficient to ventilate rooms in an apartment or house, small offices, and retail premises. They are usually not suitable for ventilation of industrial facilities; more powerful supply systems are used there.

The fan can be mounted on top of the window or replace part of it, due to the low weight of the structure. As a rule, it is closed with blinds or curtains, which are raised (pulled apart) only when the device is operating. The rest of the time it is usually unnoticeable.

The presence of a fan allows you to quickly refresh the room without opening the window. This protects people from cold or hot (in the summer heat) air and street noise.

As with ventilation by opening a window, the fan allows fresh air to enter the room, but at the same time, heat loss is reduced by 50%. Using a fan is more hygienic compared to opening a window - owners are protected from dust, debris, and insects entering the room.

The fan operates almost silently, which is also an advantage. Finally, the device is universal and suitable for installation on metal profiles, plastic and wooden windows.

The service life of such products is 10-15 years. The variety of types and the ability to choose a fan of any size and power significantly expands the scope of application of the devices and determines their growing demand.

Among the advantages are:

• ensuring air exchange in the room, replacing a bulky ventilation system;
• compact size, inconspicuous on the window;
• economical energy consumption;
• possibility of adjusting work;
• high efficiency rate with correct calculation of the device’s power in accordance with the area of ​​the room;
• affordability in comparison with the equipment of an efficient ventilation system or the use of air conditioners;
• the ability to operate in any weather conditions (unlike, for example, split systems, the operation of which in the winter cold is unacceptable);
• protection from dust and precipitation entering the room;
• ease of installation (even a non-professional can handle this) and operation.

Among the disadvantages are usually noted:

• the need to change the window design, which can negatively affect the strength of the profiles and the geometry of the glass unit;
• noise during operation (albeit small);
• the inability to completely avoid heat loss through the fan in the absence of additional insulation;
• risk of damage and leakage if installation rules are not followed or glass that is too thin is used.

How to ensure ventilation in an apartment with sealed plastic windows

Owners often ask the question: how to make ventilation in an apartment with plastic windows? The right choice is to install the supply valve on the window profile. The supply valve is a special device that is mounted horizontally on the upper sash of the window profile; the main task of the valve is to restore natural ventilation in the room. The supply valve facilitates the flow of fresh air from the atmosphere. There are several important advantages of the device:

The supply valve is necessary for the flow of fresh air from the atmosphere

• the valve does not close the window opening;
• the valve facilitates the supply of fresh air;
• ventilation occurs without loss of warm air;
• the valve does not affect the level of sound insulation of the profile;
• ventilation without harm to health (no draft);
• autonomy from the window profile;
• installation of valves does not violate the integrity of the window frame.

Inlet valves come in different types: made of wood, plastic and metal. The valves can be controlled automatically or manually. Automatic adjustment is effective and convenient, since the need to close and open the ventilation duct is determined independently, without human intervention. The valve is adjusted according to changes in pressure and changes in air humidity in the room.

It is better to install the valve directly with plastic windows, in plastic windows, on plastic windows; with this type of installation, you do not need to use the wall near the window, changing its appearance. When choosing a valve, it is necessary to study its characteristics regarding sound insulation; the metal-plastic profile should have similar characteristics. It should be remembered that the valve needs to be looked after - periodically cleaning the outer visor grille from dirt, and wiping the valve body with a damp sponge.

A variety of ventilation devices helps you choose the best option for your home

It is important to remember that any ventilation device has both positive and negative characteristics, so its choice should be made carefully and thoughtfully

The axial reversible fan is used in air conditioning and ventilation systems. Equipment of this type has found wide application in various spheres of human activity. This popularity is due to its high performance characteristics and a large number of advantages.

Supply and exhaust fans: with us it’s clean and fresh

The store's catalog contains models for ensuring normal ventilation in different rooms: kitchen fans from the world's leading manufacturers of various power and sizes, Russian and foreign roof-mounted supply and exhaust fans protected from negative external influences by a special galvanized housing, as well as fireplace and window fans, centrifugal and multi-zone fans .

Based on their main technological characteristics, ventilation devices are divided into supply and exhaust fans used in industry and in everyday life.

The household supply and exhaust fan is designed to provide a comfortable environment in apartments, private houses and cottages. The distinctive characteristics of household ventilation devices are their relatively low air output, noiselessness, low energy consumption and attractive design. The price of the models presented in the RoomKlimat store catalog makes them accessible to a wide range of customers.

Advantages of axial reversible fans

• Relatively small dimensions;
• Great design;
• Overheat protection and easy operation;
• Long service life;
• Options for overhead and hidden execution;

The peculiarity of devices of this type is the ability to provide mixing of air flows. This effect is achieved by changing the rotation of the impeller with a symmetrical blade profile. Air performance depends on the mode in which the blade impeller moves.

A reversible fan is installed in a window or wall opening. It is also possible to install the device in a ventilation duct. It can be used in the kitchen, bathroom, workshop, garage and other domestic premises. This equipment quickly purifies the air, eliminates unpleasant odors, and removes harmful substances.

The reversible window fan is affordable. At the same time, its quality does not raise any doubts, because products of this type are manufactured in accordance with established standards and requirements. It is worth noting that all elements of the equipment casing are made of ABS plastic. Thus, the window fan becomes as durable and wear-resistant as possible.

Domestic duct fans

Duct fans for round air ducts are designed for installation directly into a ventilation system with a round cross-section. The line of household fans is represented by several manufacturers. Models are presented in plastic and metal cases with bushings and bearings, with or without fastening... The choice is yours.

One of the most popular methods of room ventilation at the moment is the installation of duct fans. They work on the principle of moving air masses through ventilation pipes.

In our company Vent-Style you can always buy a powerful duct fan from various leading manufacturers, both Russian and imported. The cost of duct fans is indicated in our catalog for each model; all their characteristics are also described in detail, power and other necessary data that may be needed when ordering are indicated.

Duct fans are widely used due to their simple design, almost complete absence of noise during operation and a fairly long service life. They can be installed in apartment buildings, office premises, factories and large-scale production - the duct fan will find its place everywhere.

The duct fan has a simple operating principle: the air in the ventilation pipe is driven through the action of the duct fans operating inside them. This is where the name of this technique comes from.

The structure of a duct fan is very simple: a small electric motor, a wheel with blades and the housing itself. Such fans operate at temperatures from -15 °C to +30 °C. This allows them to be used as widely as possible. From us you can buy a separate duct fan for hot air, which has a larger range of positive temperatures.

Each fan model has a built-in thermal protection, which is triggered when the device overheats and turns it off, preventing it from malfunctioning.

The duct fan is highly resistant to rust, as its body is made of galvanized steel. The protective coating of the case prevents moisture from harming the mechanism. This makes it possible to withstand increased loads during equipment operation.

The sale of duct fans in our online store in Moscow occupies an important niche. We can always help you choose the right type of duct fan to complete your tasks.

Advantages of a duct fan:

• has high efficiency;
• suitable for all types of premises;
• easy to install;
• completely silent;
• has a reliable design and long service life;
• thermal protection with auto-on functions.

You can buy a Vents duct fan from us - this is a well-known brand that has long gained popularity in Russia for its high-quality ventilation equipment.

The round duct fan is perfect for installation in any round ducts of ventilation systems. They have all the advantages of duct fans listed above.

You can buy round duct fans in our store at any time, the product is always in stock. It is worth noting that this type of fans can be used during the distillation of non-explosive gaseous mixtures with a temperature of no more than +50 °C and no less than -40 °C through ventilation channels. Also, this type of equipment is resistant to aggressive environments.

In addition to the duct fans themselves of any type and purpose, in our store you can buy a regulator for a duct fan.

Specifications

The power of a household fan installed on a window is 15-20 W. These indicators are sufficient for high-quality air exchange and air purification. At the same time, low power ensures a reduced noise factor during device operation.

The operating speed of the blades of such units is on average 3,000 rpm. The body of the product is made of durable types of plastic that are resistant to atmospheric influences and temperature differences outside the window and in the room. The temperature range of fan operation is from -50° C to +50° C.

The use of fans with blinds or a cover allows you to avoid heat loss. They are used when the device’s engine is turned off. To increase the thermal insulation properties of the blind strips, they are equipped with special rubber seals that prevent the formation of gaps. When the lid is lowered, the fans turn off automatically.

Such devices do not have reverse draft and are recommended for installation on a window or instead of it.

Types of Window Fans

The main types of fans are: axial, which is divided into three more subtypes - supply, exhaust, supply and exhaust, and also household and industrial.

Each of them has its own properties and differences: appearance, power, functionality. So, for example, axial ones have a simple design, but a fairly high efficiency output. Household ones cannot boast of power, but they have a neat appearance and do not spoil the design solutions in the living space. At the same time, industrial ones are quite powerful, but their appearance does not carry much weight when choosing.

Window fan is applicable to any type of window

Axial window fans

As already mentioned, they have a simple design. In fact, they consist of a propeller (otherwise known as a blade), the housing itself and the engine, thanks to which the propeller rotates. This device has an axis of rotation; air is forced along it with the help of blades, creating a powerful flow.

Axial fans are not manufactured according to the standard, and depending on the purpose of use they differ in the diameter of the propeller (the blades can be from several meters to a couple of tens of centimeters). The number of propeller blades varies depending on the purpose, and the engine power may also vary.

Simple design - but maximum benefit

Exhaust window fans

The exhaust fan acts as an aid to the kitchen hood, or works independently, eliminating extraneous “odors”. Its work is aimed at removing polluted air. Thanks to the rotation of the blades at a speed of about 4 thousand revolutions per minute, with low power consumption, it eliminates excess moisture or excess heat, and produces some kind of one-sided air conditioning.

With the purchase of this type of hood with blinds, you will not have to think about the reverse draft that exists in conventional hoods, since the blinds prevent this.

Blinds prevent backdraft

Supply window fans

The supply air exchanger works opposite to the exhaust air exchanger. With its help, air flow is supplied, but does not decrease. This type is used for a room where there is no need to purify the air, but only to fill it with oxygen. Used in residential and guest rooms, offices.

As is known, the air exchange rate in residential areas should be at least 30 m3 per hour per person. It is important to consider that those rooms where additional enclosing structures are located (for example, a plasterboard wall) require additional ventilation. The inflow rate also varies depending on the “population” of a residential or office space.

It is important to maintain the required air exchange rate

Supply and exhaust window fans

This is already an entire ventilation system that works in both directions, performing complete ventilation, both to remove stagnant air and to introduce oxygen from the street.

A reversible (that is, supply and exhaust) fan operates in the following order: outdoor oxygen is taken and at the same time oxygen is taken inside the room, then the flow from both directions is cleaned by filters, the street (often cool) is supplied to the heating element (heater), in addition the street warms up, because it intersects in the system with the one that is output. Such functions are inherent in this type due to its distinctive structure.

Reverse type is ideal for cafes and restaurants

Household window fans

These have a number of advantages that are worth paying attention to: they are small-sized, inexpensive, consume little energy, have a low noise level, and are easier to install than any other modern technology.

Using a window household fan, you can ventilate your home without losing heat and without getting dirt and dust into the room. Oxygen in a living room should be completely renewed every 2 hours, but few people follow this rule and ventilate so often. Therefore, a household window fan, or a similar vent fan, will ensure regular maintenance of a good microclimate.

The characteristics of the device are specified in the passport

Industrial window fans

The peculiarity of these is their large size and use exclusively for warehouses, workshops of small and large industries. In such places there is no point in installing air conditioners, but a good old fan will do its job. In many factories, for a long time and to this day, the main “savior” is the fan, which supplies oxygen and “takes away” pungent odors from the work shops.

Usually their installation is provided for during construction, and window openings are already made taking into account their installation. Such units boast great power, meter-long blades, but also considerable noise output.

The sizes of industrial fans are much larger than domestic ones

Official VENTS website

• Product catalog Menu
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Smart fans

• Energy-saving axial fans with low noise levels
• Axial duct fans
• Axial wall and ceiling fans
• Axial decorative fans
• Fans with light
• Axial window fans
• Centrifugal fans
• Accessories for domestic fans

Selection rules

If you need to choose a household fan, you need to pay attention to:

1. Installation method. The most important point, if you already have windows, is to first find out whether it is possible to install a fan in them at all, and whether anyone will undertake this.
2. Will your glass hold up? If the fan is installed in standing plastic windows, this also needs to be clarified. You need to ask either the seller in the store (this is not a very good option, since you need to look at it live), or, ideally, call a specialist at home.
3. Ability to control rotation speed. It is not necessary, but it is advisable for the fan to have several speeds. For example, you can keep it on at minimum speed all the time, and turn it on at maximum speed when smoking/cooking.
4. Reverse. Of course, most often they are installed in kitchens, and only exhaust fans, but a reversible fan will not cost much more than a “one-way” fan. Therefore, it is better to take one just in case.
5. Control method. The cheapest models with 1 speed can only be turned on and off, for which they usually have simple cord switches (pull the cord - the device turns on, pull again - it turns off). More expensive models have a remote control.
6. The presence of blinds (check valve). A very useful option: if there are blinds, in cold weather, when the fan is not working, they will not allow cold air to flow inside. Of course, instead of blinds there can be a manual shutter, but you will have to open and close it yourself.
7. The presence of a damper (lid). A mandatory item is to block the hole when the device is turned off.
8. Performance. The only “quality” characteristic. Selected based on the volume of the room: the fan must remove 1 volume of air per hour. That is, if your kitchen has an area of ​​9 square meters and a ceiling height of 2.5 meters, its volume is 22.5 m³.

Model with lid

A small clarification about performance. According to SNiP 2.08.01-89, at least:

• 60 m³/h if there is a 2-burner stove;
• 75 m³/h if there is a 3-burner stove;
• 90 m³/h if there is a 4-burner stove.

Therefore, if you do not have a “regular” kitchen hood, and a window fan will replace it, focus on these indicators.

This advice is rather theoretical - in practice, even cheap models with a price of 1000 rubles will have a productivity of 100 m³/h+.

Advantages and disadvantages of use

The advantages include the following factors:

• no need to make a hole in the wall (as would be required to install an air supply unit/valve);
• low noise level (a kitchen hood can make noise about 50-60 dB or louder, a fan - on average about 30 dB);
• low power consumption (on average the hood power is from 0.3 kW, the power of a simple window fan is about 15-25 W);
• there is no need to lay an air duct (as for a kitchen hood).

Now about the cons:

1. The fan will reduce visibility from the window and natural light.
2. The passing air flow (if it comes from the outside inside) cannot be heated, filtered or cooled (unlike wall units and recuperators).
3. In winter, cold air can enter the room through a non-working fan (even if the model with a cover is not a guarantee that this will help much).
4. If there is no hole/block for the fan in the window, installing it will be very difficult (and essentially impractical).
5. Not every glass can withstand a fan. If you place it in plain glass, it may crack (due to vibration of the motor, especially if it operates at high speed).

Is it worth installing such a fan?

Worth it if:

1. Are you planning to replace the windows in your kitchen?
2. There is no way to install a “regular” hood in the kitchen (for example, the ventilation shaft is damaged/clogged, or it doesn’t exist at all). In this case, a fan placed in the window will become its replacement. Although you can do it easier and install a fan in the wall.

Similar Soviet models were installed in old windows

In other cases, it’s easier to choose another option. This solution is specific, and simply choosing it is not very convenient.

Approximate cost and short list of models

For your reference, here are the prices for several different models:

1. Era, size (diameter) 178 mm, with lid on the outside. Productivity - up to 280 m³/h, power - 16 W, for glass with a thickness of 3-6 mm. The cost is about 1000 rubles.
2. Aeromat 100, type A (rectangular block, mounted in the sash). Productivity - up to 75 m³/h, power - 17 W. The approximate cost is from 16,500 rubles.
3. Soler&Palau, simple model. Diameter - 174 mm, with blinds (check valve) and protective mesh. Power - 25 W, productivity - up to 400 m³/h. Costs about 2700 rubles.
4. Soler&Palau HV, reversible model, with remote control. Diameter - 260 mm, power - 34 W, productivity - 600 m³/h. Costs about 16,000 rubles.
5. Domovent. OK 150 Diameter - 150 mm, productivity - about 280 m³/h, power - 16 W. The cost is about 1000 rubles.
6. Vents 125 MAO1T, with shutdown timer and blinds. Diameter - 125 mm. Can be mounted in glass with a thickness of 4 to 17 mm. Productivity - 185 m³/h, power - 22 W. Costs about 2500 rubles.
7. Ventilor, with blinds. Diameter - 200 mm, productivity - up to 450 m³/h, power - 50 W. Costs about 7,000 rubles.

To summarize : a simple model with a mechanical switch and blinds will cost about 1,500 rubles.

Review of the Domovent OK model (video)

Installation instructions (+video on installation in a window)

Let’s say right away : installing a fan in a window glass yourself is almost impossible. It's too complex and highly specialized a task.

The glass itself can be damaged quite easily in the process, and you will have to buy a new double-glazed window. Therefore, for most people, it is better to entrust the installation to a specialist. The approximate cost of installation is from several thousand rubles.

If we are talking about metal-plastic double-glazed windows, you will have to completely replace them, buying glass with an already cut hole.

If we are talking about old windows or new, but single-glazed ones, the installation will look like this:

1. A hole is cut in the glass to the size of the fan housing.
2. The housing is inserted into the hole and secured.
3. During the installation process, all joints and leaks are coated with sealant, or rubber seals are used.

Installation is described so briefly and generally because installation conditions can vary greatly. There is no point in listing them; the easiest way is to call a specialist and assess the situation on the spot.

Related Posts

• Review of fan models with a humidity sensor for the bathroom

ERA HPS 15 – inexpensive

An axial type fan built directly into the window opening - a window transom. A check valve is provided, controlled by a cord switch. Opening the protective device - towards the street, outwards.

Durable ABS plastic is used for the housing and impeller, resistant to moisture, ultraviolet radiation and temperature changes. Optimal for work in small rooms, kitchens, change houses.

Pros:

• Lightweight, quite economical, simple operation.
• The price is just right for installation in the kitchen.
• Easy installation, especially on wooden windows.

Minuses:

• I had to work on a collective farm to make a transition trim for the window. There are no ready-made ones for sale.

BPP 15 BVN (Bahcivan) – reverse

Household series window fan. The power housing and impeller are made of durable, weather-resistant plastic. The built-in reverse function allows the design to operate in two modes, supply or exhaust.

This allows you to remove stagnant dirty air from the room, followed by renewal of the air mass due to the forced pumping of a fresh portion. The process speeds up the restoration of a comfortable environment in a residential or commercial premises.

Pros:

• Performance, reverse function.
• Cord operating mode switch.
• He works in a small bakery and does his job well.

Minuses:

• Mechanical switching.

Pros and cons of using

When choosing a supply and exhaust window device, you need to understand all the advantages it has:

• small sizes. Possibility of installation even in a small opening;
• affordable price category;
• works both at positive and negative temperatures (unlike, for example, a split system, which cannot be used in cold weather);
• easy installation. If a number of conditions are met, even a non-specialist can handle the installation. It also does not require assembling a network of air ducts for its operation. Even the presence of ventilation shafts in the building is not important;
• the ability to control the speed and direction of rotation;
• low noise level;
• energy saving;
• high performance;
• ease of control. There are models with a remote control.

Since all reversible window models are equipped with an anti-vibration gasket, vibration does not spread to the window.

The disadvantages of this device include:

• When the window mechanism operates in winter, warm air is ejected from the room and cold air is forced in. Thus, heat loss inside the building increases, and additional resources may be required to heat the room;
• Although it is possible to select a device with a low noise level, it cannot be completely eliminated.

Wind-K 125 ST – low noise

Exhaust fan installed in a window. It features controlled blinds and a timer. The latter function allows you to automate the operation of the device by setting a program for turning on or off the electric motor at certain intervals.

The design includes a protective cap that completely blocks the air flow when stopping. The quality of workmanship and proper balancing allowed the fan to achieve low noise during operation.

Pros:

• Quiet during operation, does not whistle like a jet plane.
• Price, cap - it doesn't show through the window.
• Timer: programmed, turned on and forgotten.

Minuses:

• Pull cord switch, it can be more expensive, but to work from the remote control.

Useful tips

When installing a ventilation device with your own hands, it is important to use special connecting elements. They are able to provide reliable fixation and complete sealing of parts. Additionally, it is advisable to use sound-insulating gaskets, which increase the ease of use of the fan.

It is not permissible to install the hood on ordinary glass. It may be damaged if exposed to strong vibration.

The installation of a ventilation device in a plastic window should be carried out during the manufacture of the latter. The manufacturer makes the necessary holes in it in advance for the selected hood model.

Attention! An attempt to independently make an opening for a fan in a double-glazed window most often ends in failure: the structure depressurizes and its valuable thermal insulation properties are lost.

O'Erre Smart 15/6 M – five modes

Reversible window fan with the ability to set one of five rotation speeds. A reverse option is provided. The principle of operation of the device is supply and exhaust. Control is via a remote electronic remote control.

The curtains are opened or closed manually, using a telescopic insert that is adjusted to the actual thickness of the window. The plastic of the grille and body are made in a splash-proof design. The structure is fully prepared for installation in a window opening.

Pros:

• Five rotation speeds, remote control.
• Possibility of installing reverse.
• Rain, wind and sun resistant plastic.

Minuses:

• Consumers do not note any negative aspects.

Power supply

Some models of this type are equipped with transformers that reduce the mains voltage to 12V and ensure complete safety for users. Each modern reversible window fan is equipped with a position switch, which allows you to manually switch speeds, operating modes (supply and exhaust), as well as turn the device on or off. If desired, you can order the device with a remote control.

The innovative reversible DC motor has a speed of up to 3000 rpm and low energy consumption. The DS engine is designed for 12V voltage, operates in two-speed mode and has a reduced noise level thanks to special design solutions. A particularly attractive feature is its reliability: the engine is protected against overheating, is designed for a continuous cycle and does not require maintenance.

Elicent VITRO 6/150 PA – automatic blinds

A device mounted on a window transom or directly on a double-glazed window. Designed to move air masses outside to update the air composition. The fan is equipped with an automatic system for opening and closing protective shutters.

The latter are made taking into account the effects of atmospheric moisture, solar radiation, and temperature changes. It is possible to work with a programmable timer to set the frequency and duration of fan operation.

Pros:

• Automatic operation mode, setting a timer simplifies control.
• It is quite compact and light weight, which allows it to be installed directly into a double-glazed window.
• Works in the kitchen, easily removes odor and smoke when something burns on the stove.

Minuses:

• A bit noisy, but not too much.

Systemair BF-W 230A Window fan – installation on a window or wall

Window fan to create air flow to renew the air mass inside the room. Can be installed directly on a window or wall.

The design is equipped with a gravity check valve, which is opened by the pressure created when the device is turned on. Closing - when disconnected.

The fan is installed in residential, domestic and civil premises. Used in catering establishments. It features high performance with low power.

Pros:

• Performance with little power.
• Universal installation.
• Gravity check valve.

Minuses:

• Very noisy at full load.

How is installation carried out?

The type of window opening determines how the fans are installed. The device is installed according to the general algorithm. First, the serviceability of the shaft in the room is checked, then markings are applied to the window under the air duct. Holes of the required diameter and size are cut. If the windows are plastic, you will need the help of a professional. The equipment is installed on a special frame, which is pre-fixed. The device is attached and connected to the electrical network.

Installation of window fans depends on the type of glass unit. If the house has double-glazed, single-glazed plastic or wooden windows, remove the glass from them and cut out a hole of the desired shape. The field of this is installed in place, and then the device is mounted.

For metal-plastic windows, a more complex method is used, requiring the help of specialists. The glass is removed, and a new one with a pre-prepared cutout is installed in its place. It is important here not to damage the seal of the glass unit.

Vortice Vario 230/9″ AR – full functionality

High quality product from an Italian manufacturer. The window fan can operate in supply and exhaust mode. Equipped with automatic blinds. High-quality materials and ball bearing supports significantly increased the overall service life of the assembled product.

Increased rotation speed and productivity. The outer grille is made in a weather-resistant design. The body and blades are made of impact-resistant polymer. Power supply: from a stationary power supply of 220 volts.

Pros:

• Supply and exhaust ventilation, automatic blinds.
• Reliability, durability, service life.
• Easy installation and operation.

Minuses:

• High noise at full load.
• The price is high.

Soler & Palau HV-230 RC – remote control

Axial type window fan. Mounted into a window structure or wall. Equipped with a reverse function and operated in supply and exhaust mode. There is a neon indication on the front panel for visual monitoring of the current status of the device.

The aerostructure is controlled from a remote control. There are six modes, from light ventilation to full load. The unit is designed to have a high degree of electrical safety and does not require grounding. Certified according to international quality standards.

Pros:

• High-quality assembly, fully performs all functions.
• Extended list of operating modes, remote control.
• Light indication – helps to control the fan at low load.

Minuses:

• A little expensive.
• Starts to make noise at maximum load.