Extractor hood to the bathroom: selection rules and installation features

Connection in the apartment

When installing a forced extractor hood in the kitchen, consider how power is supplied to such a system. There are two effective ways: in the first case, the connection is made directly to the power box, in the second, the system is powered through a socket.

If you settled on the first option, plan the main work in advance. Only after the necessary communications have been carried out, you can proceed to fixing the system and choosing exhaust mechanisms.

Important! Think about how the processed air will leave the room. The design can exhaust air into a ventilation shaft or directly to the street through an open space.Installation of equipment will not cause you any particular difficulties: fans of this type are quite compact, like all related elements, and if necessary, you can learn more about the features of their fastening from consultants

As a rule, the grill with a fan is fixed to the wall with screws.

Installation of equipment will not cause you any particular difficulties: fans of this type are quite compact, like all related elements, and if necessary, you can learn more about the features of their fastening from consultants. As a rule, the grill with a fan is fixed to the wall with screws.

Tip: subject to availability kitchen geyser the need for powerful ventilation of the room increases. To solve this problem, you can purchase a ready-made forced draft column: high-quality and safe equipment of this type is produced by Bosch and others.

To install a forced exhaust hood in the bathroom, it is necessary to mount a grate with a fan in the exhaust opening. It is already in the room, so you do not have to make additional holes in the wall. Power supply must be provided to the fan mounting area. Most fans have standard sizes, but in any case, make sure that the hole in the wall does not have to be adjusted to fit this design.

Since bathroom ventilation equipment must work efficiently even in high humidity conditions, choose the right model carefully. Fans with special marking IPx4 will suit you.Experts recommend choosing equipment with check valves so that polluted air or unpleasant odors from the kitchen and other areas do not enter the bathroom.

Types of air filters for hoods

Modern designs of kitchen hoods are equipped with filters that perform different functions:

1. Grease traps. They are a layer of tangled metal or synthetic fibers that trap particles of fat, soot and other suspensions.
2. Fine cleaning. These are containers filled with activated carbon, through which an air stream is passed.

All types of filters have their pros and cons, so they should be considered carefully.

metal

They consist of a metal mesh or tape with continuous perforation. They can be washed, thus ensuring a long service life. The size and shape of the holes in the tape or mesh are selected according to the conditions of maximum efficiency and the absence of operating noise. Grease deposits are best washed in the dishwasher, setting the filter vertically. Washing the filters by hand is not practical, as it takes a lot of time and does not always give the expected result.

metal air filter

Synthetic

They are a layer of tangled fibers (artificial felt). They are disposable and must be replaced as they fill up and become inoperable. Synthetic filters are more efficient than metal ones, but they have to be constantly bought, which requires some financial expenses.

Silent operation is an important feature of synthetic filters.

Synthetic filter

carbon filter

Fine carbon filter, in addition to activated carbon, is able to perform disinfecting functions.For this, additional components are introduced into the filler composition:

1. Silver.
2. Cation exchangers.
3. ion exchange resins.

These additions allow you to remove the smallest impurities, eliminate odors and other harmful substances, after which the air gets a higher quality than before and does not need to be removed from the kitchen. Carbon filters are used only on expensive recirculation models that are not connected to the ventilation duct.

carbon filter

Types of exhaust fans

Modern hoods designed for installation in the bathroom are conventionally divided into 2 types: simple and automatic. They differ from each other in design, availability of additional options and cost. The hood should supply from 25 m3 / h of fresh air for a separate room, from 50 m3 in the case of a combined bathroom.

Simple equipment is an electric fan, which is located in a tubular plastic case. It can be of two types - built-in or freestanding.

Automatic exhaust devices are easier to operate and require minimal participation of the owner of the premises in the process of air exchange control.

A popular way to turn on the device is by pressing the switch that provides lighting in the bathroom. This option allows the removal of polluted air from the bathroom occurs when a person is in it.

Automatic equipment is equipped with electronics that effectively control the operation of the device.

For a short period, moisture does not have time to completely evaporate from the room, so it is better to install a separate switch

Hoods are equipped with additional functions:

• off timer;
• humidity sensors;
• colored backlight.

The fan turns on when the permissible humidity value is exceeded. As soon as this parameter returns to normal, the device turns off.

Automatic models are convenient and easy-to-use devices that do not require the intervention of the owner of the apartment to control the operation of the ventilation system.

Automatic products can be equipped with other functions. In private houses, the ventilation system communicates directly with the street, so their owners will not be harmed by a fan on the supply pipe with an adjustable diffuser.

Some models are equipped with a check valve that prevents air from moving in the opposite direction. This option is useful for residents of apartments in high-rise buildings to protect themselves from the aromas of a neighbor's bathroom.

Despite the simplicity of the design of the exhaust system for the bathroom, it functions perfectly and copes with its tasks.

Modern hood, designed for installation in the bathroom, has a forced principle of operation. The device consists of a fan and an air duct connected to the ventilation duct of the building.

The axial exhaust fan has a relatively simple design, which does not affect the functionality of the device. In terms of performance, it can compete with air conditioners.

To choose the optimal hood, you have to take into account the features of the bathroom and the varieties of existing ventilation systems. Devices may differ in design, principle of operation, power and availability of additional functions.

Do I need forced ventilation in the bathroom and toilet?

A forced ventilation system is necessary only if the natural one does not cope with the tasks. Namely: it does not remove air from the room as quickly as required.

Everyone who does not live alone knows how uncomfortable it is to be in the bathroom, where they have just taken water procedures, there are steam and aromas of detergents. Even the most effective natural ventilation is not able to quickly remove them from the room. It can only be forced. Therefore, for its device there are several good reasons.

1. Quick air change.
2. Prevention of damage to surfaces by mold and fungus.
3. Minimization of the risk of dampness of walls and ceilings.

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Rules for the care of the hood

In order for the device to serve for a long time, it must be cleaned regularly. Before washing the hood, it must be de-energized. Next, you need to remove the grill or filter and wash all parts of the device on which dirt could accumulate. For cleaning, you can use a dishwashing detergent or a special compound designed for stainless steel products.

A distinctive feature of modern materials is their ease of washing. But sometimes, in case of severe contamination, you need to use a detergent. Please note that it is forbidden to use powder, a metal sponge or a washcloth with a rigid fiber structure for cleaning - they will scratch the surface of the hood.

To wash the buttons, use a soft cloth soaked in a cleaning solution. After all the elements of the hood are perfectly cleaned and the surface of the device is wiped dry, the device can be plugged into the outlet and continue to operate.

The period of its use directly depends on the quality and regularity of washing the hood.

If you pay due attention to this, then the device will faithfully serve for more than one year, and even after 5 years, it will look like new.

The main types of exhaust fans

I would like to start with the fact that all exhaust devices are divided into types - standard and automatic. At the same time, the difference between such devices lies in the fact that automatic hoods work with little or no human intervention.

A simple standard exhaust system consists of an ordinary electric fan placed in a tubular housing. At the same time, its inclusion occurs due to a separately installed switch or a button built into the housing. Very often, in practice, the hood is connected to the key for turning on and off the lighting in the room. However, this approach to business can hardly be called correct, since the removal of exhaust air will occur only when a person is in the bathroom. But very often this time is not enough for the moisture from the room to completely disappear.

Therefore, it is important to install a separate switch for the fan.
An automatic hood, unlike a conventional one, is distinguished by a built-in electronic unit that controls the operation of the fan. Such a ventilation system has several modes of operation, and is equipped with a timer.

In more expensive models, sensors are installed to control the level of humidity in the room. If the moisture level exceeds the allowable parameters, the fan automatically turns on, and after the humidity normalizes, the device turns off.

In addition, both types of bathroom extractors can be equipped with additional functions. Also, some models are equipped with a check valve that prevents air from the main duct from entering the room. This is especially true in multi-storey buildings, in which not very pleasant smells from neighboring apartments can enter the bathroom.

Purpose of ventilation

How to choose a bathroom extractor fan? The choice of a certain type of hood and its installation in the bathroom must be approached, as they say, with skill, because the health of all your household members, and hence the well-being of the family, depends on it.

If you think that the hood in the bathroom does not play a big role and normal ventilation through windows is enough for normal air exchange, then you are very mistaken.

The hood not only regulates air exchange, but also perfectly eliminates unpleasant odors, constantly maintaining the presence of fresh air in the room. In the case of a combined bathroom in the house, this option for full air exchange is simply ideal.

In addition, the humidity present in the bathroom contributes to the formation of fungus or mold, which is harmful to the health of others. And a well-maintained and constantly operating ventilation system can easily cope with them.

Additional functions

Among the huge variety of hoods, there are primitive models without additional features, as well as more advanced devices. A standard fan starts to function immediately after turning on the light in the bathroom, stops when it is turned off. The most useful features are the following:

• The timer is usually built into automatic hoods, and after turning off the light, the device continues to work for a specified time. This allows you to better ventilate the room, eliminates the need to leave the light on, and saves energy. Some models have a display that shows the time and percentage of humidity in the bathroom.
• Motion sensors are triggered when a person enters the bathroom. The function is not built into every model, but it greatly facilitates the operation of the device.
• The indicator light makes using the device more enjoyable. A special lamp lights up when the fan is turned on. But such devices consume more energy.
• Automatic closing of the blinds will prevent cooling of the room after the device is turned off. Usually, the function is needed when installing a duct hood, the air sleeve of which goes directly into the ventilation shaft.
• A non-return valve is also necessary in a duct-type hood; when it is closed, the possibility of foreign unpleasant odors from the ventilation shaft entering the bathroom or toilet is excluded.

Automatic model with display showing set time and humidity level

The hood in the bathroom and toilet is an important element of the arrangement of the room, which allows you to exclude the formation of mold, fungus, and prevent the development of microbes. With the right selection of fixtures, the surfaces of the bathroom will not be constantly exposed to moisture, which will extend their service life.

Comparative review of models

By and large, all modifications of hoods can be divided into three broad categories:

• flowing;
• recirculation;
• combined.

The first type is designed to transport combustion products to the ventilation duct of the building through an air duct. Therefore, in addition to fixing the hood body above the gas stove, it will be necessary to install channels for air to exit into the vent.

So that plastic or corrugated channels do not spoil the interior design, they are hidden behind suspended structures, false walls or placed in the upper kitchen cabinets - mezzanines.

Recirculating models are not equipped with air ducts, so they take up less space and are installed much faster. They clean the air masses by passing them through grease and carbon filters. In fact, they drive the air in a circle, freeing it from vapors, grease and harmful particles, but not refreshing.

Recirculating models have some advantages: they are compact and easy to install. Using the manufacturer's instructions, even a beginner with no experience in such work can install and connect such a hood

However, a huge segment of the market was occupied by universal models that can operate in both modes: flow and recirculation. Cleaning through filters can be carried out temporarily while the outlet lines are being repaired.

And if it is not possible to install air outlet channels, then filtration is the only possible way to improve the microclimate in the kitchen.

According to the installation method, the exhaust kitchen equipment is divided into autonomous and built-in. The first is mounted separately, on a wall or ceiling, and the second is built into kitchen cabinets or other suspended structures.

If you have chosen a built-in model, then when ordering a kitchen set, the performers must provide the dimensions of the technical device for precise fitting of the furniture element

By design and, accordingly, the appearance of the hood is divided into several types, while different manufacturers may have different names. The most popular are the so-called built-in sliders, one part of which is movable, domed and inclined models.

Due to the popularity of the "island" kitchen interior, ceiling models for work areas installed in the center of the kitchen have also become popular.

Installation of the hood is made depending on the design and functions of the model. To understand the installation features, you can ask the consultant for installation instructions before buying.

Perhaps there are some nuances that prevent the installation of this particular product in your kitchen. Suppose the ceiling structure cannot support the weight of the equipment, or the cabinets do not have duct openings.

Sanitary standards for air exchange

The air exchange mode of each room is subject to complex calculation. The following factors must be taken into account:

1. Number of people.
2. Dimensions, volume, configuration of the room.
3. Presence of hot or damp surfaces, technological installations.
4. Volumes of emitted hazards to be removed.

The combination of these conditions determines the type of ventilation - the advantage of supply or exhaust, the amount of output or supply of air flow. To simplify the calculations, medical standards have been developed that determine the necessary air exchange depending on the type and purpose of the room. There are rules for both industrial and residential premises.You can find these norms in the tables of SNiP. Let's consider some of them.

Table 1. Required air exchange mode

Oven with convector

Later, a new procedure for accounting for the air exchange regime was adopted - by multiplicity. It was determined how many times during an hour the entire volume of air in the room should be completely renewed. This method is simplified and was used mainly by practitioners who had no time and no need to perform complex specialized calculations.

Table 2. The method of accounting for air exchange by multiplicity

4 Advantages and disadvantages

If you still have doubts about the advisability of installing a fan, you should consider all the pros and cons of this device. Of course, there are a lot of positive aspects:

• the walls and ceiling of the room will no longer become damp and covered with mold and fungus, the formation of condensate will stop;
• it is easy to mount modern devices, and it is not necessary to call the master - you can install it yourself;
• thanks to new design features, it will not be necessary to clean the device so often, since insects and dirt can hardly get there;
• many models are compact enough to fit even in the smallest bathrooms;
• you can always choose a fan, the appearance of which will look organically in the interior;
• maintenance of the device is not so difficult, since the front panel is easily unscrewed.

However, there are also disadvantages that need to be taken into account. There are few of them, but they are available:

• since this is an electrical appliance, the power consumption will increase, although not too much;
• residents of the house may be annoyed by the sound emitted by the device;
• For normal operation, the fan must be cleaned and lubricated regularly.

Preparing a site for an exhaust fan

Before installation, a number of preparatory work must be carried out. First of all, it is necessary to check how well the ventilation duct functions by bringing a lit match or candle to the inlet. The flame should tilt at an angle towards the grate.

If a lit flame indicates that the ventilation duct is clogged, urgent action must be taken and the device cleaned before installing the hood

If the diameter of the ventilation duct opening is larger than the cross section of the fan, then you can insert a plastic or corrugated pipe of the desired diameter, and seal the voids with mounting foam, cutting off its excess with a sharp knife after the mortar has set.

If the hole at the entrance to the mine has a smaller diameter, it is expanded with a perforator.

Exhaust pipe installation

The kitchen hood is connected to the ventilation duct using corrugated or plastic pipes. The requirements for the duct are quite important:

1. The optimal length of the pipe for the hood in the kitchen is no more than 3 m.If the air duct is long, with each meter, the efficiency of the device decreases by 10%.
2. The minimum number of swivel elbows, adapters and bends. The more knees, the worse the ventilation. The resistance of the system increases sharply, and the exhaust air hardly comes out.
3. Bends and turns - exclusively at an obtuse angle. An angle of 90 degrees reduces efficiency by 10%. The air duct should smoothly move from one wall to another.
4. Smooth inner surface. In this case, ventilation will be effective, as air resistance will decrease. The best option is round plastic pipes. The corrugated air duct is ribbed, which creates additional obstacles for the outgoing air.

The process of installing the exhaust pipe - carefully read the instructions

Almost all models of devices are connected to a round air duct made of corrugated or plastic. Rectangular pipes look better, as they fit more harmoniously into the space between the cabinet and the ceiling. The diameter may be different, but the cross-sectional area must be at least 0.1 m2. All connections are hermetically sealed to prevent the possible ingress of exhaust air back into the kitchen.

Plastic air ducts are strong, light and do not create additional noise during operation. Corrugated products also have many advantages: they are flexible, light, do not vibrate and do not make noise. But in terms of aesthetics, they are inferior to plastic counterparts.

The air duct is hidden in the free interior space of walls, furniture or ceiling. Two-level ceilings are convenient in this case: the pipe can be easily hidden above the lower level.If such options are not suitable, decorative boxes are used that match the style and color scheme to the kitchen set or walls. With your own hands, you can make a drywall box in the kitchen for the hood. There are also for sale drawer boxes in a stainless steel kitchen.

WATCH VIDEO

Extractor installation instructions are included with each model. The hood for the kitchen burning has detailed instructions with drawings for installing the device. Therefore, you can find an exhaustive answer from the manufacturer to the questions that have arisen.

Conclusions and useful video on the topic

Video #1: Tips for choosing a kitchen hood:

Video # 2: Detailed analysis of the installation of the hood with air exhaust into the ventilation shaft:

Video #3: Installing a kitchen hood duct:

A kitchen hood with air outlet to the ventilation is an indispensable technique, the purchase of which you need to think about in the first place. After all, once you have spent money and sorted out in detail the types of exhaust devices, you can ensure that the brand new wallpaper and stretch ceiling do not absorb various unpleasant odors, and the cooking process itself brings only pleasure.

Please write comments and ask questions in the block below. Tell us how you chose the exhaust equipment for arranging your own kitchen. Leave posts with your opinion on the issue, post a photo on the topic of the article.