Support required level comfort in the bathroom is a very important task. Constant humidity significantly reduces the service life of finishing materials, adversely affects the appearance of sanitary equipment and mirrors, promotes the appearance of mold and other fungi, and this negatively affects human health. Help solve all these problems bathroom hood. Exhaust fan comes in three designs: axial, centrifugal or radial.
Axial extractor in the bathroom equipped with simple impellers with an impeller and is made, as a rule, in a cylindrical body. In such a fan, the blades capture air currents and move them along the axis. Such fans are in demand due to the ease of installation and enough high rate energy efficiency. Axial models are installed in the wall, directly in the opening of the ventilation shaft.
Centrifugal bathroom hood is a relatively recent invention. These devices combine simplicity of design and ease of use, as well as high power with low noise characteristics, due to which, for their short story existence managed to gain incredible popularity. Mounting centrifugal fans usually carried out in a flow ventilation system, under the ceiling. Such models can even be hidden behind plasterboard panels, which is especially important for rooms with high design requirements.
Radial fans are an impeller placed in a spiral casing. Perhaps this type of hood is the quietest and most economical. In addition, centrifugal fans are unpretentious in operating conditions and easily cope with performance overloads.
On the pages of our online store, buyers can get acquainted with models from leading manufacturers bathroom hoods. Price for fans varies in a wide range, so buyers with any income can find suitable equipment here. For the convenience of visitors, the catalog is equipped with product filters, with which you can quickly select bathroom extractor. Buy the device is not difficult: just a few clicks, and you already own a fan, after which it remains only to wait for the delivery of your purchase. Delivery is carried out within the city Moscow and also to the regions.
How to make a hood in a private house so that it is fresh, dry and warm? In the toilet and bathroom, this issue is especially relevant. Consider a forced device exhaust system with your own hands. The material is provided with video and photo instructions.
Natural air exchange is possible due to the difference in density and temperature of the air inside and outside the house. Traction force is influenced by:
This type of ventilation is a specially arranged vertical channels. The system has gained popularity due to its relatively low price and simplicity of design. The absence of complex elements and mechanical parts determines the reliability of natural ventilation.
Comparison of the operation of ventilation systems in the house
System maintenance is limited to periodic inspections ability to reduce heat loss. Fresh outdoor air warms up faster. The flow in the natural ventilation system is not regulated. This can worsen the microclimate. Operation is virtually silent.
Natural extraction also has a number of disadvantages. For example, depending on the weather. In the summer heat, when the air temperature outside can be higher than in the house, such ventilation does not cope with its direct task. And in winter there are significant heat losses. Insects or street dust can also enter the room.
Picking up the diameter ventilation ducts, it is necessary to take into account the amount of air exchange. For a toilet, 30 cubic meters per hour is considered sufficient, for a bathroom 50 cubic meters. at one o'clock.
Supply and exhaust system forced ventilation includes heat exchanger, filters and fans. The clean air coming from the street is heated if necessary and distributed to the rooms. And the contaminated one is forcibly sucked out. This type of ventilation is characterized by high efficiency and productivity.
Forced ventilation
To organize the exhaust in the toilet and bathroom, fans with bearings or bushings are used. The second option is preferable, since such a device is quieter and has a more affordable price. It is common to connect a fan to a light switch. Then the hood will start functioning as soon as the light comes on. Or they mount a separate switch for ventilation, placing it on the wall or on the device case.
Important! Equipping the input street channel ventilation system filters, constant maintenance is required. They need to be changed regularly, because a dirty filter will not allow enough fresh air to enter the room. And the substances accumulated in it can become a source of reproduction of bacteria and harmful organisms.
Modern technologies make it possible to equip forced ventilation with air humidity sensors. In this case, the mechanism will work as soon as the moisture content indicator reaches the specified parameter. But besides convenience, this option also has a disadvantage. For example, the hood may work while bathing a child, creating an unnecessary draft. There are also ventilation with a motion sensor. They are triggered when someone enters the room. The principle of operation is the same as when connected to a light switch, but the cost of the sensor is much higher.
Advice. Additionally, the ventilation system of the bathroom and toilet can be equipped with timers. Those. there is a possibility of delaying shutdown after leaving the bathroom.
When choosing a fan, it is necessary to pay attention to the fact that the noise level does not exceed 35 dB.
Duct centrifugal blower with reduced noise level
By design, fans can be:
The first type of fans is mounted if the system is without channels. The centrifugal device has the highest performance, but also works louder than others. Centrifugal axial fan light weight, quiet operation and high efficiency. The air duct for a private house can be in the form of:
Exhaust centrifugal fan
If forced ventilation is organized only in the bathroom, and all other rooms are planned to be ventilated, then it is advisable to mount a simple ductless system. Turn off the electricity before installing the fan. Usually, the device has special terminals for mounting. Screwing something with self-tapping screws is usually not required. Connection to the power supply network is carried out using a new two-wire wire.
But if you need to provide forced ventilation throughout the house, you need to purchase special equipment. It is most often located in the attic or in technical rooms. It is a unit that provides the supply of clean air and the removal of polluted air, filtration, heating. You can calculate the power based on the number of residents, the size of the house, the material of the walls. Usually 150-600 m3/h is sufficient. Modern air ducts are assembled according to the principle of a designer and can be masked by suspended or stretch ceilings.
Fan with check valve
Properly functioning ventilation is of great importance for the microclimate of the house. Good air exchange in the bathroom and toilet is especially important. After all, the doors in these rooms are often kept closed, and the level of humidity is high. To avoid the appearance of mold on the walls, fungus and other troubles, you need to take care of a high-quality exhaust system.
Air exchange of the bathroom and toilet must be provided before starting the repair. This will ensure a healthy microclimate of the room and prevent the appearance of fungus and mold. Rooms with high humidity especially need good ventilation. After all, even regular wet cleaning will not save from the reproduction of harmful microorganisms. How to make ventilation in the bathroom and toilet yourself is described below.
For private houses, the ventilation system is simple: a channel in the form of pipes is brought to the roof or connected to the hood. If the house is made of wood, then even such ventilation is not required. After all, the walls at the same time are able to "breathe", therefore they easily let air into the room.
For apartments, the situation is complicated by the fact that everyone in the entrance is connected to a single ventilation duct. The lower the location of the apartment, the greater the likelihood that the channel will become clogged faster.
Ventilation duct in the wall
To check the quality of ventilation, you can bring a lit match to the vent. If the light does not move or moves very weakly, then the ventilation does not work well.
If the channel is clogged, forced ventilation must be provided. Such artificial ventilation is provided by installing a fan in the room. It is built into the air exchange system (ventilation shaft opening). When choosing a fan, it is necessary to take into account the fact that the device will be operated under conditions of high humidity.
Forced ventilation in a residential building
With normal natural ventilation, the air from the bathroom exits through the ventilation shaft to the outside of the building. This is due to the temperature difference in the apartment and on the street. Therefore, there is a lifting force called thrust.
Due to the draft, the air escapes and a vacuum or reduced air pressure is created in the room. At open windows air from the street enters the bathroom to eliminate the pressure difference. Such ventilation is called natural supply and exhaust.
How natural ventilation works
For the effectiveness of natural supply and exhaust ventilation it is necessary to provide a horizontal slot at the bottom of the door. When sealed closed doors natural ventilation will not be provided.
But if the natural ventilation in the house is broken (for example, when the ventilation pipe is clogged or when it is warming outside), then there are problems with the hood. The air exchange rates in the bathroom and toilet are set for the outdoor temperature at 5 degrees Celsius.
It is necessary to check the effectiveness of natural ventilation in winter. For this we will need:
Checking ventilation with a piece of paper
If the paper is weakly held or falls off, then the ventilation is broken. A more accurate method is to test with a clear plastic tube and a lit cigarette. To do this, the pipe must be attached to the vent. A lit cigarette is brought to the open end of the pipe. The speed of smoke movement will show the efficiency of ventilation. Knowing the dimensions of the cylinder, the ventilation performance is calculated.
In case of poor draft, you can try to clean the ventilation pipe yourself with a special brush.
Fans according to the installation method can be axial or duct. Channel-type models are often equipped for private houses. This ventilation option can serve several rooms at the same time. This is ensured by the fact that the fan is mounted in a common ventilation duct.
But duct ventilation has an unaesthetic appearance. After all, the channels located under the ceiling will need to be hidden under false ceiling or in a box. And this will significantly reduce the room and come out quite expensive. The way out will be the use of axial fans. It is installed on the hood hole. It is only necessary to accurately select the size of the device.
In order to prevent unpleasant odors from being sucked into the room from the common shaft, it is recommended to use models with a check valve.
According to the installation method, fans can be:
Bathroom fans
In the diametrical wheel of the device it has a drum type, but its efficiency is not very high. Axial is installed in a channelless system. This option creates the minimum noise level. Centrifugal is the most productive, but also the most noisy. The best option is centrifugal-axial, which contains all the advantages - low noise, high performance and compactness.
Recently, there are fan models that are equipped with additional features, among which are:
Mixed duct fan
Inline centrifugal fan
There are several factors to consider when choosing a fan:
The device during operation should produce no more than 40 dB of noise. This will ensure quiet operation. The desired effect is achieved due to the material of high density from which the device is made and the presence of vibration isolators. When installing a fan on the ceiling, much less noise will be produced than mounting a duct fan inside the duct.
It is advisable to use a model with a built-in presence sensor in the room. In this case, the device will rarely turn on. After all, the high performance of the device can lead to a failure in the air exchange system of the mine. To calculate the required fan performance in the bathroom and toilet, you must:
According to the calculated performance, a fan heater is purchased. According to the SNiP standards in the bathroom, the air should be changed 5-8 times. The design of the device must be reliable protection from moisture and splashes. This will protect you from damage. electric shock in case of accidental contact with moisture or splashes on the fan. For wet rooms IP 34 class models and above are foreseen.
Before starting work, it is necessary to prepare. To do this, the channel is cleaned of dust and cobwebs. From the inside, you can clean the mine with a special brush. Sometimes residents upper floors a weight tied with a string is lowered into the ventilation shaft from above. But it is best to seek help from specialists. Forced ventilation in the bathroom is done only for a properly functioning mine.
When installing a duct fan, you must purchase:
An air duct is provided when the ventilation duct is located through one or more rooms from the bathroom. If there is a ventilation duct in the bathroom, only an axial fan is installed. If the bathroom and toilet are separate rooms, then a special grill is installed between them in the ventilation opening (on both sides).
When installing a fan in the bathroom and toilet, you must:
The main stages on which the work will be carried out:
Preparation, which consists in cleaning the ventilation duct, was described above. Then a hole for the fan is prepared. The opening for the device is expanded using a grinder, a chisel and a hammer. The hole should be of such a size that the fan "sinks" into it. Only the grill should be visible from the outside. Fan attached liquid nails, glue or dowels. In addition, a sealant is used to soundproof the operation of the device.
Installation and connection of the exhaust fan
Electrical wiring consists of the following steps:
After a power failure, the fan is powered up. To do this, a cable is led from the two-pole switch to the device. The cable is used three-core with 3-core grounding. It is advisable to use a two-pole switch, where one contact (button) will turn on the light in the room, and the other will turn on the fan. This is very convenient option, then most often the tenants forget to turn on the ventilation button.
How to connect the fan correctly
The solution is to use a voltage relay. It is allowed to simultaneously turn on the light and ventilation with one button of a two-pole switch. To do this, the relay is placed in the circuit. When you press the button to turn on the light in the bathroom, the current from the machine goes to the relay and the contact closes on the second switch button (for the fan). This ensures constant ventilation when the light is on in the room.
If you need to make separate lighting in the bathroom and toilet, then a three-pole machine is used. Only in this case 2 voltage relays are used. You can also set a timer that will keep the device running for a while after the power goes out.
Wiring diagram for a fan with a timer
After installing the switch, a cable is led from it to the fan. The cable is used three-core, where the 3rd core is grounding. To do this, you need to ditch the wall. A cable is laid there, then covered with putty and left for a while until the material dries. After that, you can start finishing work walls.
If the renovation in the bathroom has already been completed, then it is done open wiring cable in a special box, which is mounted with special fasteners. But the first wiring option is preferable.
After the cable is connected to the fan, a protective grid is installed on it. It is installed on self-tapping screws or special latches. After that, you can connect the power supply on the shield and check the operation of the device. If there is no confidence in self-connection devices to the network, it is better to seek help from specialists.
Installation of forced ventilation in the bathroom and toilet allows you to solve the problem of ventilation. It is not very easy to organize such a system, but with proper planning and consultation of specialists, the problem can be solved and installation is possible. Modern systems automatics make hoods very convenient and efficient.
A bathroom is a room in which, due to operational conditions, there is inevitably high humidity. Constant moisture in the air leads to the formation of mold and fungus, and the air becomes stale. A bathroom hood will help solve the problem, which contributes to increased circulation of air masses.
The ventilation system can be forced or natural. The choice of a specific type of ventilation depends on the conditions in a particular room.
Ventilation systems with natural circulation air is usually provided at the design stage of the building. The design of the house is equipped with special ventilation ducts that lead to the attic level. Ventilation ducts are most often made of brick or plastic pipes.
The bathroom hood, created on the principles of natural ventilation, must comply with certain standards:
Installing an extractor hood in a bathroom with forced air ventilation is used in the following cases:
When choosing a device, you should consider a number of parameters, which will be discussed below.
In addition to air ducts, a forced bathroom hood includes a fan. Exhaust fans available different types and forms, but the essence of these devices is always the same. Most often, bathrooms use axial models that can move up to 250 cubic meters of air hourly. A standard fan is a device with a power of 7 to 20 watts.
You can set the power of the device using a simple formula:
M \u003d V * (5 ... 10), where M is the required performance indicator, V is the cubic capacity of the room, and the numbers in brackets are a correction factor depending on the regularity of using the bathroom.
Below is an example of a calculation. The volume of the bathroom is 9 cubic meters. If the premises are used twice a day, then a correction factor of 5 can be used. Thus, required performance fan will be 45 cubic meters.
For wet rooms, fans with a higher protection class are produced. The marking of such devices includes two English letters- I and P, as well as numbers. The digital indicator displays the level of protection: the higher the indicator, the higher the protection class. For abundantly humidified rooms (especially with wood trim) it is recommended to use modifications marked IP34 or higher.
Advice! Before installing an extractor hood in the bathroom, you need to take care of the presence of natural channels for air circulation, for example, cracks under the doors. This is required condition, without which the full operation of the ventilation system is impossible.
Modern models of hoods are equipped with automation. For example, we are talking about motion sensors that turn on the device only when a person enters the room.
Humidity sensors (hygrostats) are also used, which turn on the system only if the air becomes too humid. A person sets a humidity threshold (usually from 40 to 100%). When this threshold is reached in the room, the fan will turn on automatically.
The hood can be produced with a timer. Their use allows you to use ventilation on schedule. The general task of automatic devices is to make the operation of the hood convenient for the user, as well as save electricity without wasting it.
Please note: there is no completely silent equipment (although in the name of hoods you can often find English word silent - silent). At the same time, it is worth noting that modern ventilation operates quite quietly. The normal noise level is 30 decibels or less.
If there is a desire to make the ventilation even more quiet, you can purchase a special noise silencer. It is also popular to finish the ventilation shaft with soundproofing material.
Reverse allows you to change direction with a certain frequency air flow: first, the hood draws air, and then vice versa delivers it from the outside. However, in this case there is a serious limitation, since only Fresh air from the street, but not from the attic or mine. Therefore, such hoods are more often used in private homes.
This is a special device connected to a common ventilation duct. The task of the check valve is to prevent entry into the apartment exhaust gases from the external environment.
How to make a hood in the bathroom will be discussed in this part of the article. This work is not too difficult. However, if reading skills are lacking electrical circuits and what is called “straight hands”, it is best to entrust the work to specialists.
The most common option for connecting a do-it-yourself hood is to create a system in which the fan will interact with an external toggle switch. The latter usually plays a regulatory role in the choice of speeds. The essence of the switch is not to use the hood unnecessarily, but to turn it on when necessary. As a switch, you can use a cord, which in the future you just need to pull to turn on or switch the speed mode of the system.
Another method of organizing the hood is also used, which differs in the way it is turned on. Here the device is started using a standard two-button switch. In this case, one of the keys turns on or off the light in the bathroom, and the second is designed to control the hood.
Below are the basic principles by which the hood is installed in the bathroom:
The hood for the bathroom and toilet is installed in the following order:
Electrical household hood not always for the bathroom best option. Sometimes a system in which many apartments are combined into a single ventilation system looks much more preferable.
The general access ventilation system solves, first of all, the problem of noise from fans. In addition, such an extract will be much cheaper. There are other advantages of general access ventilation:
A relative disadvantage of the integrated system is the interdependence between neighbors. For example, if for some reason the fan stops working in the apartment, air from the neighbors will be pumped into this room.
This situation can be prevented by using a check valve. However, while the fan is being repaired, moisture will accumulate in the room, so it is more correct to provide for attic duplicated duct ventilation system. If one of induction motors breaks, the other will not stop functioning.
So, there is no alternative to the ventilation system, because otherwise Decoration Materials in the bathroom will quickly become unusable, and the air in the room will always be humid and stale. Most often, forced extraction is most in demand. It is recommended not to skimp on hoods with automatic control, as the use of such systems is as comfortable and economical as possible.
In many houses and apartments, the bathroom and toilet are one unit. In such a space, it is absolutely necessary to install a ventilation system that will ensure the extraction of air that is unsuitable for being in a residential area. Today, in many bathrooms, owners are not satisfied with the standard hood installed when the house was built. Many install additional hoods that help get rid of excess moisture and unpleasant odors. Extractor to the bathroom - perfect solution for the bathroom.
Today, in many apartments, the bath and toilet are in the same space. On the one hand, it's convenient. On the other hand, it represents a number of problems that need to be solved once and for all. The solution to getting rid of advanced level humidity and unpleasant odors can be the installation of a hood for the bathroom.
A bathroom equipped with a fan has a greater level of protection against the occurrence of fungus and the spread of mold, which is dangerous to human health.
When deciding to install a hood, it is important to familiarize yourself with the product options. They have different characteristics. Each device has its own characteristics, advantages and disadvantages. Designs can be natural or forced.
Design features:
All houses are equipped with natural ventilation, as it is included in the plan of a residential building. Since natural ventilation is subject to frequent clogging, the specialist is advised to without fail install forced ventilation. The choice of forced exhaust depends on the personal preferences of the owners of the premises.
Ventilation devices must be reliable and productive, otherwise their installation will be a waste of time and money. To choose the right hood for the bathroom and toilet, you need to understand the types of ventilation systems. Many do not think about the fact that the presence of natural extract alone may not be enough.
Natural hoods are made with the expectation that they will cope with ridding the room of unpleasant odors by transferring temperature and changing air flows.
In many homes, natural hoods don't work and are a reservoir of extra dust and dirt. There are two main types of forced exhaust hoods that will help solve the problem of polluted bathroom air. The hood can be standard and automatic.
Hood types:
When making a purchase, it is important to pay attention to the technical characteristics of the product. It is important that the manufacturer gives guarantees for the correct operation of the system. You can install the hood with your own hands, using ordinary tools or high-quality glue.
The correct operation of the device always depends on the quality of its installation. The most important thing is to ensure that the shape of the hood matches the shape and size of the ventilation duct. After installation, only the decorative grille should remain outside.
When choosing and installing the hood, it is important to take into account a number of features and nuances that will allow you to install the hood so that it has served properly for many years.
The electric hood in the bathroom must be waterproof, as it will directly interact with moisture. It must also be protected from accidental ingress of foreign objects into it. The degree of protection can be determined by a special designation on the device.
What to look for:
After installation, the joints between the wall and the hood are best treated with a sealant. This will get rid of extraneous noise when the hood is actively working. Modern devices can be equipped with a humidity sensor, non-return valve, motion sensor, timer and silencer.
The choice and installation of a hood for a private house is somewhat different. At the stage of building a house, it is necessary to take care of laying ventilation ducts and ducts for electrical wiring. It is especially important to take care of the installation of ventilation in a wooden house.
It is important to think in advance where the hood will be located, since the correct wiring depends on it.
The hood can be equipped with separate switches, or it can turn on simultaneously with the light. It should also be noted that some systems may run on batteries. Wiring is a critical step. If there is no self-confidence, it is better to entrust the work to a professional electrician.
Fan types:
The choice of fan depends on many factors. The main thing that exhaust fan worked properly and had enough power to cope with the flow of humid and polluted air. You can choose the right fan only if you are familiar with the types of ventilation systems and their features.
When installing a ventilation system, it is important to pay attention to right place to install it. There is a wall and ceiling construction. If the fan is battery powered, then you don't have to worry about wiring.
The ventilation system requires careful and correct installation otherwise, the device may malfunction.
If confidence in own forces and there is no competence, professionals will help to do the installation correctly. At independent work It is also important to listen to the recommendations of professionals. It is better to carry out installation on initial stage repair.
Installation Tips:
All stages of work must be carried out responsibly, since electric hoods pose a certain danger when interacting with humid environment. The hood should be located at a sufficiently safe distance from the bath. Properly installed bathroom and toilet hood prevent the accumulation of unpleasant odors and moisture.
If the natural exhaust does not work in the bathroom, the installation of forced ventilation can come to the rescue. Present on the market today a large number of exhaust structures. They differ in their configuration, and, accordingly, functionality. You can install it yourself, following the advice of professionals. It is important to remember that when installing an electric hood, safety precautions must be observed. It is important to ensure that the hood does not clog, so it is better to choose a design with a damper.
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