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Competently we make a hood in the country from the stove. How to make a do-it-yourself hood in the kitchen: tips from the master

Competently installed system ventilation is the key to a comfortable stay in the house. Fresh air, optimal humidity and no unpleasant odors These are her main tasks. Today we will talk about how to install the system with your own hands. , a scheme that is optimally suited for each room, and recommendations from professionals - about all this in our material.

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Why do we need ventilation systems in a private house?

For those who still doubt whether it is necessary to install ventilation in a private house, we will give a simple example. Breathable air contains about 60 percent oxygen. The remaining 40 are gases that either do not affect the body or harm it. Our body takes in oxygen from the air and returns carbon dioxide to the atmosphere.

In addition, in a room with insufficient air circulation, harmful bacteria and viruses actively multiply.

Many parents, who wrap their children too zealously and close all windows and vents, cannot understand why their child, nevertheless, is constantly sick. The answer is simple - in the stale atmosphere of a sealed room, pathogens feel great and successfully attack their prey. They take the smallest particles of dust as allies, which freely enter the tissues of the lungs and nasopharynx, settle there, provoking a cough and a constant runny nose.

Sometimes the disease takes a chronic form. But a ventilation device in a private house will help solve all these problems, and the entire structure will cost much less than a full set of medicines for treating family members.

In addition to harm to humans, the tightness of the premises causes damage to the structure itself. The lack of normal air exchange leads to the growth of mold and fungus, the destruction of all natural finishing materials and walls. Excessive moisture affects the plaster, which cracks and peels off the base. Ventilation projects of private houses provide for the specific purpose of each room and create the necessary microclimate in the bathroom, kitchen, boiler room and living rooms.

Varieties of ventilation systems

According to the basic principle of operation, ventilation systems can be divided into three types:

View	Description
Active	This system works with the use of electrical appliances - fans. The flow of air flows naturally through channels protected from dust, insects and rodents. Waste streams are removed by exhaust fans. All ventilation ducts are combined into one common pipe. Such a design is not difficult to install, but requires energy costs.
Passive	This option ventilation system does not need to be connected to the mains and works due to the natural movement of the air flow. Such a system will require the installation of several ventilation ducts in each room of the building.
Supply and exhaust	A system that combines the advantages of natural and active ventilation. The incoming air duct is equipped with a filter and a fan that draws air from the street, and the outgoing air duct is equipped with an exhaust device. This is an economical system, it is enough to install one such device in the room.

Let us consider in more detail the principles of arrangement of each of these systems.

Natural ventilation device in a private house

Installation natural ventilation in a private house with your own hands, you should think about it at the design stage of the house. In the process of building walls, ventilation shafts are laid or pipes are fixed if the house is not made of bricks. The system works efficiently due to the difference in air pressure and temperature inside and outside the building. Advantages and disadvantages of the system:

For natural air exchange, the diameter of the duct must be at least 13 centimeters. Holes for installation are located under the ceiling.

An approximate scheme of natural ventilation in a private house:

The optimal option is considered to be in which a common air duct is located inside the central wall, to which ventilation ducts from all rooms are connected.

Ask a specialist

“The fewer horizontal outlets in the system, the more efficient it works.”

Another important point– the exhaust pipe must be adequately insulated. If it is made of bricks, then the recommended thickness of the masonry is two and a half bricks. Metal and plastic hoods are insulated with mineral wool. This is necessary so that on frosty days the air duct does not cool down and effectively continues its work.

The height of the ventilation duct is selected relative to the height of the ridge. To determine the dimensions of the pipe, you need to draw a horizontal line from the ridge, and then another straight line with a rise of 10 degrees. The top point will be the desired value.

Important! The natural ventilation channel for a fireplace or gas boiler must be larger than usual, at least 13 by 26 centimeters. Its masonry is made as airtight as possible.

Features of forced ventilation in a private house

Equipment for forced air exchange in most cases is placed in the attic. But there are cases when forced ventilation is installed in the basement of a private house. Usually one powerful device is mounted, which will provide an extract in the entire system or be placed in each duct. The influx of fresh atmosphere in this case is carried out through windows and vents.

Advice! If the doorways in the rooms are equipped with skirting boards, they must have gratings for unhindered air penetration.

The system needs to install additional equipment:

protective grilles and nets against insects and rodents;
filters that trap dust, pollen and other allergens;
valves for adjusting cold air flows;
exhaust fans;
material that absorbs vibration and sounds;
air heaters (work in winter time);
air ducts;
automation units for system control.

To obtain the desired effect, you should choose a forced air exchange system that is most suitable for your home. Here are a few options:

System	Description
Combined system	Combines natural and forced air supply. Does not require special maintenance and is easy to install.
Forced air supply with cooling effect	Installed with air conditioner. It is quite expensive and needs regular maintenance.
Forced heated air flow	The system components include recuperators. They use the heat of the outgoing streams to warm the incoming air masses. Recuperators are not cheap devices, but they can be assembled with your own hands.
Recirculation system	Requires the installation of complex devices that mix outgoing exhaust air flows with the outdoor atmosphere and return them to the house. This device may only be installed by qualified personnel.

Expert opinion

HVAC design engineer (heating, ventilation and air conditioning) LLC "ASP North-West"

Ask a specialist

“A large installation for general ventilation should be located at the maximum distance from living rooms. Even very good insulation will not make it silent.”

The main requirement for arrangement forced ventilation: air masses must move from residential premises (rooms) to non-residential premises (kitchen, bathroom).

Types of systems and their schemes

It is not easy to draw up a diagram of the ventilation system in a private house. Such a task requires special knowledge and understanding of the correct placement of air ducts, heat exchangers and fans. The efficiency of air exchange depends on the correct layout.

Ask a specialist

“If you have no experience in designing such systems, entrust this task to professionals. You can carry out the installation on your own, but only a specialist can correctly plan everything.”

Basic rules to follow:

non-residential premises should be the last in the chain of ventilation ducts;
the exhaust pipe must be higher than the roof ridge;
the dimensions of the air ducts are calculated using special formulas;
air ducts must be carefully heat and sound insulated, otherwise the wind will howl in the house.

Supply ventilation in a private house: principle of operation and scheme

The supply air exchange system includes several components: an air duct, fittings and the supply chamber itself. The dimensions of the device are relatively small, and such ventilation will not spoil the external and internal appearance of the house.

An important aspect! The incoming air flows must have a temperature of at least 18 degrees. Such an air flow will not disturb the comfortable atmosphere in the room, will not cause colds and drafts. In the case of forced air supply, elements must be built into the system that heat it up to the desired temperature. Previously, such devices were installed, but in modern construction they have been replaced by recuperators. The principle of their operation lies in the heat exchange between incoming and outgoing flows through a system of filters and plates.

In a private house, the forced ventilation system has its own characteristics. Usually in a suburban household there are many household premises with special features. Unlike a city apartment, it houses a boiler room, a basement, a residential attic, a swimming pool or a bathhouse and other objects necessary for the owners. These rooms have different humidity and temperature, and it is not easy to combine them with one air exchange system.

It is for this reason that special requirements are put forward in the house:

It must be powerful enough to serve the entire house.
An extensive system must provide for the features of different rooms.
The owner of the house must have the ability to remotely or manually control the air exchange.
The design should take into account seasonal temperature changes and heat the house in winter and cool it in summer.

Related article:

In the article, we will consider in detail the types of structures, the principle of operation, how to choose a place for installation, how to properly install the device with your own hands, helpful tips and expert advice.

The principles of exhaust ventilation in a private house and video instructions for installing the hood

Extractors are used to remove exhaust air. It is especially important to install them in rooms where odors are actively spreading and an unhealthy atmosphere reigns - in the kitchen, in the boiler room, in the bathroom. To force the removal of air masses, you will need a fairly powerful fan and an exhaust hood directed to the street.

One hood can be installed on a maximum of two heaters, but regulatory authorities may require you to install separate chimneys for each device. It is better to do so, because we are talking about your safety.

Important! If a exhaust ventilation through the walls to the street is installed in the boiler room, it must have a sealed air duct so that combustion products do not penetrate into other channels and rooms. All seams and joints are additionally treated with sealant. In places where the chimney is in contact with the roofing material, refractory gaskets are installed to prevent fire.

For forced ventilation of the chimney, a fan with a check valve and a fire-resistant asbestos-cement pipe are used. It is permissible to use metal pipes.

Important! Under no circumstances should plastic pipes be used for exhaust in the boiler room or in the kitchen, they are not heat-resistant and burn easily, releasing toxic fumes.

The nuances of supply and exhaust ventilation in a private house

It is believed that this principle of organizing air exchange is the most productive. The removal of waste air masses and the injection of new ones occur simultaneously.

There are two schemes of supply and exhaust ventilation. In the first case, two air ducts are simply installed in the room under the ceiling. Air enters through one hole and exits through the other. Both processes take place with the help of fans. In the second case, the inlet flow is located at the bottom of the wall. The fan pumps in fresh air, and the exhaust is removed through the duct by the ceiling in a natural way. Such a system works especially effectively in houses with non-standard high ceilings.

We focus on each room - what is needed for ventilation?

As already mentioned, in a private house there are many rooms with different purposes. Their features should be taken into account when planning the ventilation system. Let's consider each case in more detail.

Ventilation in a private house in the kitchen: the main hood

The kitchen is a hot shop, in which there is always a lot of steam, heat, smoke and smells. If a festive dinner is being prepared for guests or the oven is running at full capacity, there is literally nothing to breathe.

Advice! You should not be limited only to the hood in the kitchen in a private house. It must be combined with the general ventilation system. This will prevent food odors from entering other rooms.

Arranging ventilation in the kitchen is not difficult. Here are some recommendations from practitioners:

The body of the hood is better to choose from aluminum.
The filters in the device above the stove must be cleaned at least two to three times a year.
It is best to choose a device with an adjustable fan speed. This will allow you to use different ways air purification depending on its pollution.
Periodically check the efficiency of the ventilation duct using a burning match or a piece of paper. If the flame draws in or the paper sticks to the grate, the ventilation is working properly.
For large kitchens over 15 square meters provide several exhaust channels.

Video instruction on how to properly install the hood over the stove:

Installation of ventilation in the toilet and bathroom

The atmosphere of the bathroom and toilet is saturated with bacteria and microbes, which, accumulating in a small space, attack not only the human body, but also Decoration Materials. After taking a bath, the walls remain damp for a long time, and in the absence of a high-quality hood, the toilet has an unbearable smell.

To equip the ventilation of the bathroom you will need:

ventilation shaft that goes to the roof. The ventilation duct must be straight and even, only this form will allow air flows to move freely. His optimal dimensions- from one to two meters;
external grille with slanted louvres, which protects the channel from atmospheric moisture;
internal grille with adjustable damper.

Note! In the bathroom, you can install a natural and forced ventilation system. Forced, of course, is more effective.

Important points in the installation of ventilation in the toilet of a private house:

For installation, low-noise devices with a maximum rate of 30 decibels are used.
The ventilation duct is placed opposite front door. This ensures maximum traction and proper distribution. fresh air.
All duct equipment is placed at a safe distance from heating appliances. Ventilation materials cannot withstand temperatures above fifty degrees, unless it is a specialized device for baths and saunas.
The power of the ventilation device is selected depending on the intensity of use and the size of the room.
In the bathroom, the installation of motion and humidity sensors, timers on the fans is justified.

Advice! Before designing an air exchange system in a bathroom, read the requirements of SNiP 41.01.2003. This document describes all the requirements for ventilation in a bathroom in a private house.

Ventilation in the basement of a private house: important points

All owners of suburban housing are interested in the question: how to make ventilation in the basement of a private house? In the underground country house workshop, laundry, boiler room can be located. In the basement, many housewives store home-made canned food and vegetables for the winter.

Dampness provokes the development of mold and the destruction of the walls of the basement and basement. In order to create a normal atmosphere in the basement, it is necessary to provide ventilation or vents at the stage of pouring the foundation of the house. They are located on opposite sides of the base. If there are partitions inside the basement, there should be vents in them too. The products are located under the ceiling of the basement, at a distance of 20-30 centimeters from the ground level, and they must be provided with gratings from rodents, otherwise your stocks for the winter are not destined to be preserved until they are served on the table.

Note! Another real threat to the basement is the explosion of heating equipment if the boiler room is located in this room. Only high-quality ventilation will prevent the accumulation of dangerous gases in the event of an emergency and prevent the fire from spreading to the entire house.

The area of the vents is easy to calculate by dividing the area of \u200b\u200bthe basement by 400. The recommended diameter of one hole is 12 centimeters. And it is worth remembering that the effectiveness of their work will directly depend on the prevailing winds on the site, so they should be positioned accordingly. Among other things, when planning vents, one should take into account the features ground water, seasonal temperature changes and rainfall.

Important! To prevent water from pouring into the vents during a downpour, install visors on them and make an inclined blind area that removes moisture from the foundation.

Important about the ventilation of the boiler room

The main tasks of ventilation for a gas boiler in a private house:

content regulation carbon monoxide. Even if its percentage exceeds 0.2%, this threatens with serious consequences for the human body, up to respiratory arrest;
preventing the occurrence of reverse thrust, in which combustion products enter the room;
providing the room with the oxygen necessary for breathing. In addition, oxygen is also important for the operation of the boiler, because it is in its presence that combustion processes are possible.

Object with high level fire risk, it must be equipped only with a forced air exchange system. Natural ventilation is not suitable here because of its low efficiency.

In order for the heater to work in normal mode, it is necessary to change the atmosphere in the room three times per hour. Each chimney is equipped with two openings. The upper one is designed to remove gases, the lower one is for periodic cleaning of soot and soot.

Ask a specialist

“Before installing the ventilation duct, study the boiler certificate. It contains all the requirements for the installation of the chimney. Make a calculation of the ventilation of the boiler room, taking into account all the recommendations.”

All elements of the chimney are made of refractory materials. To increase the efficiency of the device by floor standing boilers install a coaxial chimney with two air ducts.

Proper organization of air ducts in the attic

Unhindered air exchange will prevent the formation of condensate under the roof. This will extend the life of its operation and save you from the need for constant repairs. In winter, the roof will not be covered with frost, and in summer good ventilation will not let it get too hot from the sun.

To properly organize attic ventilation in a private house, use perforated spotlights. They look neat and decorative, and besides, they do not let insects through. In addition to these elements, roof aerators and ventilated skates are used.

Advice! If soft roofing material is used for covering, small gaps are made in the counter-lattice to allow air to enter.

In the most difficult sections of the roof with a complex geometric shape, point aeration devices are used.

A few tips from roofers:

attic ventilation should be protected from dust, it quickly absorbs moisture and adversely affects the roof insulation;
all attic vents must be equipped with protection from birds, insects and fallen leaves;
ventilation ducts must have the same size along the entire length. Any narrowing will adversely affect the efficiency of the system;
with a roof length of more than 10 meters, the use of forced ventilation of the space under the roof is recommended.

How to make ventilation ducts for sewers and cesspools

Many people think that the main task of ventilating a cesspool in a private house is just to eliminate unpleasant odors. This is only partly so. Proper air exchange contributes to the rapid decomposition of waste and reduces pressure in the local sewage pipeline. Excess methane, a decomposition product of organic matter, can cause a fire.

To remove exhaust gases, high risers are installed in the right place. They are installed not only in country toilet, but also in an autonomous waste processing system - in septic tanks and closed tanks.

Important! The height of the sewer ventilation riser must exceed the height of the roof by at least 70 centimeters, and the riser itself should not be located near windows.

If it is not possible to install a riser above the roof, ventilation valves are used that open as the atmosphere is rarefied. The ventilation duct for sewerage can be made of plastic; ordinary sewer pipes are suitable for this.

Air exchange in the basement and foundation

We have already talked about how to establish air exchange in the basement. But what about the ventilation of the foundation in a private house without a basement? In fact, in this case, it is necessary to ensure normal air exchange. It will protect the floor logs from rot and prevent the accumulation of harmful gases and dampness under the floor.

For ventilation of the basement floor of a private house, the same products with protective grilles are used. They are laid at the time of pouring the foundation on opposite sides. For this purpose, asbestos-cement or plastic pipes are used. At the time of pouring, they are filled with sand so that they do not deform, and the solution does not get inside.

How to ventilate the pool

The pool is a special room in which there will be high humidity and temperature. These conditions dictate special requirements for pool ventilation in a private house. Only well-organized air exchange will prevent the growth of the fungus, which will like the climate of this room. If you do not stop its growth, the spores will cause severe allergic reactions in the owners of the house, and all finishing materials will collapse right before our eyes.

Note! Favorable air temperature in the pool is 28-32 degrees Celsius. Permissible humidity - 64 percent.

There should be no draft in the room with the pool, this is important for a comfortable stay in it. The pool is one of the most difficult areas to design. For this reason, it is better to entrust the development of a ventilation scheme to specialists.

How to make ventilation in a private house: calculations and step-by-step installation

To calculate ventilation in private homes, some basic values \u200b\u200bare required. These are the parameters of each room, its purpose and performance standards for natural and forced air exchange.

Ventilation ducts for passive air exchange are located vertically and go from each room to the roof. In a living space, the atmosphere must be completely renewed every hour.

Ask a specialist

“For forced ventilation calculations, it will be necessary to sum up the required air exchange rates for each room, taking into account its area, and, based on the amount received, select equipment that will cope with this task.”

For example: the house has three rooms, a kitchen, a bathroom and a boiler room. We calculate the performance for each room in accordance with its purpose and area:

kitchen -90 cubic meters per hour;
bathroom - 50 cubic meters per hour;
boiler room - 70 cubic meters per hour;
children's room - 40 cubic meters per hour;
living room - 120 cubic meters per hour;
bedroom - 60 cubic meters per hour.

Total - 430 cubic meters per hour for the whole house. Therefore, for the successful operation of the ventilation system, an installation capable of mastering such a volume of air is required. You can put one unit or divide the power to the needs of each room and mount the units separately.

An example of how to properly ventilate a private house in the following video:

Before deciding how to make a hood in a private house, read the regulations of SNiP 31.02.2001 and ABOK 2.1.2008. They propose to use for the calculation of the rate of air exchange. The indicators in these documents are somewhat different, so for independent calculations it is better to choose a larger value.

Features of ventilation schemes in a private house with their own hands, depending on the specifics of the building design

If the air exchange system is integrated into one whole, the scheme of the ventilation system in a private house should provide for the movement of air from "clean" to "dirty" rooms. That is, from the living rooms to the bathroom, boiler room and kitchen.
Supply valves are placed in each room where there is no exhaust hood.
If the building has two or more floors, the ventilation ducts are placed according to the basic principles.
For the basement, basement, foundation, natural ventilation is provided through the vents.
The exhaust ducts of passive ventilation are located strictly vertically.
For uniform draft, the exhaust ducts must be of the same length without constrictions and expansions.

To minimize heat loss, ventilation shafts are carefully insulated, especially in places where they go outside.

Do-it-yourself ventilation installation in the house

In the process of work, some difficulties may arise. The main problem is the weight of the equipment for forced ventilation. Sometimes one master cannot afford to lift and install the unit. That is why take care of an assistant and a lifting mechanism in advance, which will make the task easier. You can carry out a phased assembly of the unit. The structural nodes are assembled on the ground and sequentially installed according to the scheme. Do-it-yourself supply and exhaust ventilation is installed using some special equipment.

AT frame house the task is greatly simplified. Installation supply ventilation do-it-yourself will require only the use of a stepladder, drill and jigsaw.

Features of installation work

If there is ventilation in a private house through brick walls, it is better to lay the ventilation ducts during the construction process, so that later you do not have to engage in time-consuming and expensive drilling. Use cardboard or wood templates during the masonry process so that all ducts are of the same cross section. Lay out the inside of the duct with a solid brick, carefully sealing all joints.

Asbestos-cement pipes can be used to bring the ventilation outlet to the roof of a private house. They are joined to the ventilation duct in the wall and carefully fixed, cementing the entire structure.

Important! Make sure that the cross section at the joints of the ventilation duct does not change. To do this, remove excess mortar and make sure that the inner surface of the duct is smooth.

And, of course, do not forget about your own safety in the process of work:

do not work on the roof in ice and rainy weather;
with a roof slope of more than 20 degrees, use insurance;
when drilling walls, use a hidden wiring sensor;
when working with a jigsaw, a drill, use protective goggles and gloves.

How to choose pipes for ventilation

When choosing pipes, the main requirements should be taken into account:

section size;
heat resistance;
tightness;
conformity sanitary standards.

Round pipes made easy available material with good aerodynamics. Most often, ventilation is made in a private house from sewer pipes. Air ducts with a square and rectangular section are more difficult to find, but they can be made independently from a stainless steel sheet. Such pipes for ventilation in private houses are easier to mount in right angles and under the ceiling.

Now about the pipe material. Galvanized steel air ducts are resistant to corrosion and temperature extremes. Stainless steel is suitable for hoods in a "hot" room - a boiler room and a kitchen. A plastic exhaust vent pipe is the cheapest option and is ideal for wet rooms.

Article

The hood is a very important element modern kitchen. Many housewives save on the hood or simply do not install it as unnecessary, but in vain!

The kitchen hood blocks unpleasant odors, steam and grease, preventing them from settling on furniture, household appliances and other interior items. And for studio apartments, an exhaust hood is simply necessary.

The most important thing in a kitchen hood is its performance, because it organizes continuous air processing for an hour.

To determine the performance, you need to multiply the area of \u200b\u200bthe room by the height of the ceiling and by the air replacement factor from 6 to 10. The instructions for any device indicate the performance of a particular model.

The modern technology market offers a wide range of kitchen hoods. Let's try to understand all the variety of the much-needed attribute of modern cuisine.

Depending on the method of fastening, the hoods are divided into:

Dome

The simplest, but at the same time powerful dome-shaped hoods that are mounted above the stove.

This type of hood is also called passive. The dome hood does not have fans, complex sensors and other mechanisms in its design - hot air rises up through an upward draft.

Modern domed hoods are made of tin, decorated with glass and wood.

In terms of style, dome hoods resemble part of a fireplace chimney, they look beautiful and concise.

The downside of passive hoods is that they only work when the ventilation pipes are in working order and may be useless if the ventilation ducts are clogged in an apartment in an old building.

It is better to use a dome hood in a large kitchen in a private house, where heating devices additionally function. In this case, the duct can be brought out through the wall.

flat

Flat hoods are compact in size, but at the same time, they are no less efficient in operation, like dome hoods.

This type of hood has replaceable carbon or acrylic filters in its device. Flat hoods are ideal for small spaces, they look stylish and beautiful, while they have considerable power and good performance.

In addition, flat hoods are quite easy to install. The only disadvantage of such a device is that the filters must be changed very often, which requires additional expenses and is not very convenient.

Embedded

Such hoods are mounted in a kitchen cabinet.

They do not take up much space, fit well into the interior and are almost invisible.

Built-in hoods are modular and telescopic. Modular hoods are small in size, and telescopic hoods are additionally equipped with a retractable panel. Built-in hoods can be mounted independently, but, as a rule, manufacturers kitchen furniture install built-in hoods in the production of a headset.

Flat and built-in hoods are called active, as they are powered by an electric motor and are equipped with filters.

If the kitchen area allows, and the working surface of the stove is located in the center of the room, then it is better to prefer an island hood over the stove.

It remains only to solve the problem with the air duct.

Features of work

Depending on the method of operation, all kitchen hoods can be divided into those that remove air and those that purify it.

For those who for some reason have never had a kitchen hood, and they first thought about purchasing it, at first it will not be easy to understand the whole variety of the range. For clarity, let's consider each of the constructions in more detail.

Flowing

These hoods, through the existing outlet to the ventilation, relieve the room of air saturated with steam and fat.

Therefore, the operation of such an extract directly depends on the degree of cleanliness of the ventilation duct.

Flow hoods are mostly domed models, quite large in size. Flow hoods are highly efficient and very noisy, which can be a serious problem for those with sensitive hearing, if such people are in the kitchen for a long time. In connection with this fact, modern flow hoods are already produced with two fans in order to reduce the noise level without reducing their power.

The cost of such hoods, also additionally equipped with filters for cleaning, will be many times more expensive. Therefore, it is this type of hood that is increasingly being made independently (we will talk about the features of making hoods with your own hands below).

Flow hoods are a wonderful design element, and made of glass, such models look very impressive.

Circulating

The operation of circulating hoods is based on air purification with filters: metal and ordinary carbon.

The former eliminate the smell of food in the kitchen and in the apartment, are easy to maintain - they are easy to wash, the latter purify the air, and they require periodic replacement approximately once every 4 months.

The most important advantage of the circulating type of hood is that they purify the air already in the room, with the windows closed there will be no lack of oxygen, and the ventilation works as usual.

This type of hood is easy to install: you do not need to connect the hood to the ventilation, you just need to set it at the right level and plug it into the outlet.

A properly installed circulating hood is able to work effectively despite its compact size. Due to the built-in filters, these hoods are distinguished by good sound insulation.

Now the most popular are hoods that combine both the air outlet and its circulation, so the owner can independently choose the most suitable mode for him.

How to do it yourself

In consumer electronics stores, you can buy a ready-made hood for every taste based on your preferences for its configuration, but, as a rule, good models are not cheap.

In order to save money, you can make a kitchen hood yourself, it will be less expensive, and besides, a do-it-yourself hood will be the most ideal addition to your kitchen, akin to a work of art.

You can independently make both a passive type hood and an active one. Let's consider both options.

In order to make a dome hood, you will need the following materials and components:

galvanized U-shaped profile, 15 mm in diameter;

drywall, tin, non-combustible plastic, thick foil - any of these materials for making a box;

batting or other soundproof material;

corrugated hose with a pipe (in case the vent is located away from the hood);

check valve;

dowels, perforated corner, measuring instruments, as well as putty and paints and varnishes for refining the hood.

photos

Before proceeding with the manufacture of the hood, it is first necessary to outline a place for its installation. You should follow the scheme according to which the hood should be located at a distance of at least 65 cm from the hob, and the width of the hood should correspond to the width of the stove.

You can install the hood directly above the stove, if the vent is also located there. In the event that the ventilation is to the side, you will have to “pull” the hood to the ventilation hole with the help of a corrugated hose.

Many supply home-made hoods with ventilation, in this case, you need to remember about grounding. In addition, a separate outlet is required for the hood.

Having decided on a place for a future hood, you can begin to manufacture it.

At the first stage, make a rectangular frame from a pre-prepared galvanized profile, one and a half times smaller than your plate. It is necessary to nail it to the ceiling with the help of dowels.

Next, at a height of 65 cm from the slab, nail another profile equal to the width of the slab in a horizontal position. Based on this profile, assemble a frame in the form of a bell along the width of the plate, this will be the design of the hood. For the first time, install a support under the bottom frame so that it does not fall off, also connect the rectangular frame that you attached to the ceiling to the bottom one using the side ribs.

The resulting dome-shaped frame should be sheathed with drywall or any other refractory material.

When the ventilation hole has not got inside the dome, it is necessary to pull it to the hood with the help of a corrugated hose. Connect the corrugated hose to the hood with a pipe and weld it (if the hood is tin) or fix it with a sealant (when using drywall as the hood material).

In order to ensure that air from the ventilation or from the street does not penetrate through the hood into the apartment, install a specially purchased back pressure valve.

In the event that the hood is made of drywall, as a final step, it remains only to ennoble it. Be sure to close the corners of the hood with a metal profile corner so that they do not crumble during operation. Putty all connections and attachment points. The finished hood can be painted in the color you like or decorate in any other way. Thus, you can make a hood that is in perfect harmony with the interior of your kitchen.

The secret dream of many of our compatriots is a beautiful country house. Professionals know that at the design stage it is necessary to provide for every little thing, especially communication solutions for future construction. And few people know how to make ventilation in a private house in such a way that it is comfortable to live in it at any time of the year.

A well-organized system of inflow and removal of air masses in a living space is able to provide:

additional protection of premises from fungal and mold spores, dampness;
circulation of oxygen in every room;
comfortable conditions for work and leisure at home.

Show all

What rooms need ventilation

Without access to clean air, the human body is not able to function normally. In a residential building, it is necessary to ensure the flow of oxygen primarily in the nursery, bedroom and living room. Don't forget the kitchen and bathroom. In these small rooms, a high concentration of humidity is often recorded, as well as characteristic odors (mostly not very pleasant), which need to be removed to the external environment.

note! A well-implemented ventilation device in a private house eliminates the likelihood of dirt, dust accumulation, condensation, stuffiness, and also prevents mold and harmful microorganisms from spreading throughout the home.

Features of the implementation of the air exchange system

Traditionally, experts distinguish two types of implementation of the air exchange system in residential buildings:

natural;
mechanical (forced);
mixed (the first type is supplemented by a forced draft device).

On the technical side of the issue, the ventilation system for the home is classified into the following categories:

functional purpose;
the method of moving air masses (channel, non-channel);
a device that moves air.

But how not to make a mistake in choosing? What ventilation of the cottage provides comfortable conditions for those who live in it? Note that each option has both obvious "pluses" and obvious "minuses". For a better understanding of the problematics of the issue, it is necessary to dwell on them in more detail.

Natural ventilation of a residential building is due to the difference in pressure inside and outside the building. The whole process is based on physical laws and does not require human intervention. Its essence is as follows:

1. Since the air temperature indoors is higher than outside, the air becomes light. Due to this, through the ventilation duct, it moves to the street.
2. A partially rarefied mass is formed inside the room, which contributes to the influx of fresh oxygen through small holes located in the structure of the object.
3. The received masses are heavier in their structure. They are located in the lower part of the premises, so floor ventilation in a private house is so important and is an integral part of the air exchange system.

note! With increasing temperature, the exchange through the wall is faster, especially if supplemented by wind.

Modern residential buildings are practically devoid of cracks and small holes, so the natural one, as a rule, does not work in a private house. The inflow is possible only through small valves built into the walls and windows.

System advantages:

Absence of emergencies. Constructive simplicity excludes the slightest breakdowns or malfunctions.
Profitability. Ventilation in country house is carried out automatically, additional equipment (and with it financial costs) is not required.
Flexibility. The device is easily complemented by air conditioners and filtration solutions.
Noiselessness.

Natural ventilation in a private house

The natural ventilation system of a private house is not able to provide forced air flow, which at times increases the risk of fungi, mold, and unpleasant odors. Such "neighbors" not only destroy the building, but also harm people's health. It is not surprising that in the 21st century they are practically not used. Forced ventilation of the cottage is much more efficient.

Forced ventilation system

Photo of forced ventilation

Mechanical system by which air masses are set in motion artificial way- at the expense of pressure devices (compressors, pumps, fans). Such ventilation in a cottage is much more preferable. Forced organization of air exchange has the following advantages:

1. Oxygen can be pre-moistened, heated, which creates a comfortable environment.
2. The ventilation of a country house is autonomous and does not depend on the environment in any way.

As for the shortcomings, they are obvious:

organization of such a system requires additional equipment, implementation at the design stage, electricity costs;
regular service during operation.

Mechanical ventilation in a private house can be implemented in several ways. Specialists distinguish the following types:

exhaust - the "old" air is removed from the room by appropriate mechanical solutions;
supply - a private house saturated with air from the street forcibly;
supply and exhaust - the supply and removal of air masses is carried out mechanically.

Ventilation of a private house. Forced ventilation (general overview).

If we are talking about a large enough area brick house or a cottage, it is advisable to stay on the mixed type option. Its main advantage is the excellent combination of forced and natural systems.

Competent organization of ventilation in suburban housing

So, how to properly ventilate the house and is it possible to do all the activities yourself? Proper organization of the air exchange process will improve the microclimate in the living space, as well as keep all structures intact. Regardless of the room, the ventilation device in a private house with their own hands is implemented in several stages:

determine the amount of clean air required to ensure compliance with accepted sanitary standards;
calculate the diameter and section size for the duct system - this value will determine the atmosphere in the living space;
choose the optimal ventilation scheme in a private house (carefully weighing all the advantages and disadvantages of each of them);
prepare a plan for air channels (a competent approach will ensure efficient work);
determine where ventilation will be installed in a private house;
the next step is to mount zones for the inflow and removal of air masses;
build the system itself for multi-apartment residential space.

Deciding on the optimal system

Photo of a typical project

Professionals focus on the fact that in a private house it is customary to start at the stage of preparing documentation for future housing. The quality criterion of any modern project- availability of all communications necessary for comfortable life of people. And in this context, the presence of fresh air is an important component of the harmonization of the surrounding space.

note! Important is not only the ventilation itself in the house, but also the speed of movement of oxygen itself.

Many owners of cottages do not perform any preliminary calculations, but equip their homes with powerful mechanical systems. In this case, the fans can force-cool inner space. Experts emphasize that the hood in a private house should be natural if there is no need for additional air exchange. In view of its naturalness, it guarantees a natural humidity regime for everyone who is within the boundaries of the living space.

Proper ventilation in a private house with your own hands is created on the basis of a given rate of air volumetric velocity. If we are talking about a mechanical solution, the corresponding value can vary between 3 and 5 m 3 /h. The natural system provides a run up to 1 m 3 / hour. The difficulty lies in the fact that if housing has basements, then a coercive system is indispensable.

note ! To pass 300 m 3 / hour of fresh air, a channel with dimensions of 250x400 mm is required, which corresponds to the standard d 350 mm. However, if you equip a mechanical system, you can stop at a channel of 160x200 mm or d 200 mm.

The video below provides information on how the ventilation system in a country house is arranged:

Ventilation in a private house: calculated data

Ventilation of a private house is based on careful calculations. The determining factors in this approach are:

object area;
the number of permanent residents;
air volume in each room.

Advice! Professionals strongly recommend considering everything Appliances and technical means functioning in living rooms, as they actively absorb clean air.

Installation of ventilation in the cottage is possible only if all the above factors are taken into account. For a competent calculation, you should use special tabular data and charts. The easiest way to equip the hood in a private house with your own hands is to make calculations by taking into account the area of a particular object.

This method is most often used for residential type objects. In accordance with the norms for such premises, at least 3 m 3 / hour of clean air should fall on each "square" and this is without taking into account people. To calculate this value, it is necessary to produce the air norm per area of the object.

Example ! How to make a hood in a private house with an area of 90 "squares"? The value of the intensity of air exchange is set according to the following formula: 90x3 \u003d 270 m 3 / hour. For living space, this will be enough.

Ventilation duct and its cross section

Computing optimal level oxygen exchange, select the best ventilation scheme in a private house for do-it-yourself implementation, count the ventilation ducts. Regardless of where the installation of such a system is planned, in the subfloor or in the ceiling zone, there are only 2 types of air ducts with a rigid structure - round and rectangular.

Provide an average air exchange rate of 5 m / s, if we talk about branches - no more than 3 m / s. In a natural system, the indicated value does not exceed 1 m/s.

You can read about the pros and cons of plastic pipes for ventilation in the article: Plastic pipes for ventilation

To organize effective ventilation in a private house with your own hands, you need to determine the optimal section of the channel. To do this, use a special diagram, which takes into account the flow of air masses and the speed of their passage. Before you make ventilation in the house, carry out installation activities, please note that the standard value of air exchange is 360 m 3 / hour for forced-type systems. Consequently, optimal value for air ducts will be d200 mm or 160 x 200 mm.

Rectangular plastic ducts in the video below

Ventilation in the house, plastic air ducts - installation and installation

Thinking about how to make ventilation at home, many of our compatriots forget that their homes are equipped with metal-plastic windows, whose design is completely sealed. In this case, care should be taken that inlet valves are present in the frame of metal-plastic solutions, through which air masses are supplied to the interior space.

note! If there is no specified hole in the windows, it can be done in the wall. We are talking about a standard pipe, which has a round shape, which is placed in the hole made. On both sides, it is covered with protective metal gratings with a small cross section.

Ventilation of the basement of a private house is carried out in a similar way. Enough to stick simple recommendations and creating a favorable microclimate within the living space will not be difficult. In such a room, each person will feel as comfortable as possible.

Cooking stoves, especially gas stoves, are a source of dirt and pungent odors. Therefore, often the owners decide to install a hood over it. Many people want to do it on their own, thinking that it is cheaper and easier. But during installation they have to deal with large quantity problems that can be solved.

What is a kitchen extractor fan for?

When cooking, especially during frying, a lot of heat and pungent odors are released. Steam comes out and smoke comes out of the gas. From this, the ceiling is smoked, the wall of the kitchen or the apron of the headset is spoiled. That is why the hood, which is a forced ventilation device, is necessary in this room.

The hood can be perfectly integrated into any interior.

Its main advantages:

it eliminates strong odors;
quickly removes steam and smoke immediately into the common house pipe;
ensures the absence of traces of high humidity, as well as various other deposits on the walls and ceiling.

Disadvantages are found only in certain types of ventilation units, for example, a cheap hood may be too noisy. But even this is easy to come to terms with.

Kitchen hood calculation

But before choosing the right type for the given conditions exhaust unit, it is necessary to make an approximate calculation of the volume of removal of polluted air.

Calculations are made primarily based on the size of the kitchen. The calculation of the electrical part is already made according to the existing model of the hood.

Suppose the dimensions of the kitchen are 3 m x 4 m. Thus, the area of \u200b\u200bthe room in our example is S \u003d 12 m 2. If the height of the walls is 2.5 m, then the volume of the kitchen will be V = 12 x 2.5 = 30 m 3.

The performance of the hood (how many cubic meters per hour) is calculated as the product of the dimensions of the room and the coefficient K. For electric stoves, K is approximately equal to 12 units, and for gas stoves - 20. It indicates the number of complete air changes in the entire room per hour.

In our case, we will use a gas stove. We get the following performance of the hood: P \u003d 30 x 20 \u003d 600 cubic meters per hour.

For a unit with a similar value, as practice shows, a fan with a power of no more than 1 kW is required. When calculating the wiring, we will take this characteristic into account.

For a power of 1 kW, according to the standard design standards for electrical conductors, a wire cross section of 2.5 mm 2 is sufficient. This parameter is used in lines in apartments. Therefore, any nearest outlet in the kitchen is suitable for installation.

The cross-sectional area of the ducts is taken according to the following rules:

It should be no less than the outlet of the hood.
The cross section of the duct should not be larger than the area of the opening of the common house channel.

When installing the ventilation piping, one more golden rule must be remembered: the fewer bends in the line, the better the performance.

Grounding for the hood is not required.

Often in new buildings in the kitchen, a special two-wire wire has already been brought out specifically for the hood. Usually in an apartment of a newly erected house, this cable sticks out of the wall right under the ventilation duct opening at a height of about a meter above the intended surface of the slab.

After calculations, you need to choose the type of hood.

Installation steps and types of kitchen hoods

All forced ventilation units for the kitchen are divided into two main classes.

Also among open devices there is a classification by location. Such hoods can be island or wall-mounted, and the latter - corner.

Depending on the method of management, the classification is as follows:

remote (with remote control);
buttons or touch.

Photo gallery: different types of kitchen hoods

Island hood hanging separately from the headset Wall hood mounted to a vertical surface
Recirculation hood does not have a ventilation duct
Some hoods can be controlled remotely

How to install a kitchen hood with your own hands

Mounting the hood over the stove is actually not difficult if you have minimal skills in plumbing and repair work. You need to start with the electrical part.

Electrical connection

A regular socket is suitable for connection. But if there are no power points near the installation site, then you need to do the following.

It is necessary to bring an electric cable to the markup for the hood, simultaneously hiding it in the wall. You need to do this in the following sequence:

Grounding for ventilation is usually not used.

How and at what height to install the hood housing

Usually, a forced ventilation device is placed above the stove directly on the wall. Most often, two points of support are sufficient. As a rule, the installation and operation manual is attached to the purchased hood.

The optimal height above the gas stove is about 80 cm (over the electric stove, 70 cm is enough). It is necessary to retreat this value from the plate and draw a horizontal line with a pencil. This will be the bottom surface of the hood. Starting from it, you can mark the holes for hanging.

It is enough to measure the distance from the bottom wall of the device to the marks for fastening to a vertical plane with a tape measure. The same values should be noted already on the wall.

The self-tapping screw bursts the dowel in the wall

Installation of a built-in hood

The process of fixing such a product is simple. The case is screwed with self-tapping screws to the upper wall of the wall cabinet in four places. When the door closes, he will remain invisible.

But such devices have a flat panel with filters at the bottom. She just needs to be visible. Most often, it has a retractable part and a backlight.

The marking for fixing the housing is made according to the template, which must be included in the set of documents for this hood. Check it out when buying.

The filter of the built-in hood is changed from below

The choice of air duct for the hood and its installation

Without a connection to the common house channel, the operation of the hood is meaningless. Although, if the device is supplemented with a special carbon filter (some models with a recirculation function provide it internal installation), then for a while you can live like that. But the constant replacement of carbon filters will inevitably lead to additional costs, so it is still better to have a hood that allows the installation of an air duct.

There are three options for manufacturing a ventilation duct from standard parts:

from a corrugated soft foil pipe;
from plastic channels of rectangular section;
from PVC pipes.

The corrugation is easy to install, but looks unaesthetic.

Corrugated pipe can be easily bent and stretched

Most often, channels with a rectangular cross section are used to install an air duct, since they have a large number of advantages:

They can be easily cut (to shorten) with a file.
They are quite aesthetic, able to fit into any kitchen interior.
There are a large number of different convenient transitional elements - angular, curly and others.

Plastic pipes with a square section are used quite often.

Finally, plastic pipes. They are somewhat inferior to rectangular channels in terms of the variety of transition elements.

Plastic pipes take up a lot of space

How to install air ducts

Installation of the air duct involves preparatory work:

First you need to measure the distance from the outlet of the hood to the opening of the common house channel. It is also necessary to take into account all the turns of the planned line.
Then make a list of the items you need to purchase.

Let us assume that the distance from the plane of the hood hole to the level of the bottom line of the grating of the common house channel is 1 meter. In this case, a left turn is necessary, after which another 50 cm remains to the ventilation shaft of the house. So you will need:

rectangular channel 1 m;
channel with a diameter of 0.5 m;
knee with a right angle;
adapter from the hood to the rectangular channel;
adapter for the grate of the mine at home with a right angle turn.

It is very important to measure the diameter of the outlet of the hood and the parameter of the ventilation duct in the kitchen wall. This depends on the parameters of the adapters. They must fit snugly on the respective parts so that the blown air cannot seep into the joints.

Installation of the air duct is carried out in the following sequence:

The rectangular ducts used stay in place well without being attached to the wall. But to be sure, you can install at least one fastener.

Long pipe sections can be fixed on the wall

Usually there is no ventilation grill in the apartments. In this case, it is necessary to select it when buying parts. In addition to the line cells, it must have a hole to secure the round end of the adapter.

The air duct is simply inserted into this part.

On the wall, the grating is fixed with dowels and screws.

Along with rectangular channels, you can also use a standard corrugation made of aluminum foil. But at the same time, she must remain invisible. That is, in this case, the corrugation, as a duct link, is suitable for hidden areas, for example, above the headset in an inaccessible place.

If we talk about a cone hood, then it always comes with its own decorative air duct in the form of a shiny metal box. Inside such an element, a practical part is still installed - a corrugation for ventilation, which connects the upper opening of the cone to the apartment ventilation duct.

The decorative box is built according to the telescopic principle. Its upper part slides out of the lower part and is fixed according to the attached installation instructions.

Inside the decorative box you need to install a corrugated pipe

The disadvantage of such designs is that they can only be used when the opening of the kitchen ventilation duct is located strictly above the stove. If it is strongly displaced to the side, the installation of such a device will be difficult.

If there is an additional ventilation duct on the kitchen wall, then it can be closed with a regular grate without a hole. Let it serve simply for natural ventilation of the room.

Homemade drywall hood

Special attention should be paid to self-made plasterboard construction. In this case, there is no need to buy rather expensive parts. And the hood itself from the manufacturer has a high cost.

There is another plus similar structures: they can be made stylish, exclusive, fit perfectly into the interior.

Materials and tools

You must first make a sketch and calculate the surface area for the purchase of drywall. To do this, measure the place for installing the hood, draw it, and then draw up a sketch of the planned structure on paper.

The width of the home-made structure is taken equal to or slightly larger than the corresponding plate parameter. The height is assigned constructively, depending on the location of the kitchen ventilation duct and the overall design solution.

All dimensions of the hood are indicated on the drawing

The surface area is calculated as the sum of the products of the dimensions of each face. The amount of purchased material should be slightly more than the calculated one. Additionally, you need to purchase screws and metal profiles.

In addition, putty and primer are bought for surface finishing.

Tools that will be required for work:

Perforator.
Screwdriver.
Roulette.
Level.
Stationery knife.
Putty knife.
roller.

Step-by-step instructions for making drywall hoods

When all preparatory work completed, you can go directly to the process:

Such a product provides natural ventilation of vapors from the stove.

By the way, in order to cut a rectangular piece from drywall, it is enough to forcefully draw a knife along one side of the sheet along the marking line, and then break the workpiece in the opposite direction. The material will break evenly, it remains only to cut through a layer of paper. If you need a curly piece, then you have to use a drywall saw.

It remains to produce decorative trim hoods.

Manufacture of the case from various materials

In addition to drywall, other materials can be used to make hoods. For example plywood or plastic panels. It all depends on the skill and capabilities of the owner.

The same plywood is easier to attach to profiles. She does not crumble and does not get her hands dirty. It does not need to be primed and puttied. And when finishing you can just cover it with wallpaper.

Profiles for her, however, are needed stronger. It is better to use metal corners with a steel thickness of 1.5 - 2 mm. You can take stainless steel. The very process of manufacturing a housing for the hood is the same as when using drywall.

Decorative finish of the hood

The decorative coating of the plasterboard surface may be different.

Usually applied after priming water-based paint to match the color of the kitchen or wall. At the same time, the design is supplemented with foam moldings or skirting boards, and sometimes with decorative wooden elements.

If desired, the drywall hood can be easily styled for any interior.

Can be wallpapered or even veneered ceramic tiles. Drywall is such a versatile material that it allows any external processing.

Video: how to install a hood

It is not so difficult to equip the kitchen with a hood, the main thing is to follow all the rules. The only thing you need to constantly remember is that the forced ventilation device needs periodic maintenance. Approximately every six months, it is necessary to take out and clean the filters of the hood according to the instruction manual. Otherwise, these devices are unpretentious.

To install the hood in the kitchen in a private house on your own, you do not need to have special knowledge or skills, but you should be careful and carefully follow the instructions. The device protects the room from unpleasant odors, removes polluted air, cleans it from dust particles and food, and eliminates harmful substances that are formed during the combustion of gas.

Requirements for the hood in the kitchen in a private house

When choosing a hood for the kitchen, you need to pay attention to the air pressure indicator that the blower creates. The higher it is, the greater the performance of the product. A good hood has several fans that blow air at different speeds.

The performance of the hood is determined by the amount of air that the device can remove from the room. Some devices are capable of outputting 180-700 m³ / h. It should be borne in mind that the higher the performance, the more the fan will make noise.

To determine what exhaust power is needed for the kitchen, you should determine the volume of the room and multiply it by 10. According to sanitary standards, a complete replacement of the air in the room should be done 10-12 times per hour, so the volume of the room is multiplied by 12 (air exchange rate). The result is multiplied by 1.3 (reserve factor). It is necessary to consider how the calculation is made using the example of a kitchen with an area of 6 m² and a height of 2.5 m: ((6 * 2.5) * 12) * 1.3 = 234 m³ / h. For effective ventilation of the room, an extractor hood with a capacity of 230-240 m³ / h is needed.

The dimensions of the device must correspond to the dimensions of the gas stove or exceed them by 10-20 cm. Failure to comply with these conditions will cause fumes and combustion products to rise past the hood and the hanging furniture will begin to deteriorate. Machined aluminum has proved to be the best material.

You can also make a hood in a private house with your own hands. Without fans, the device must be connected to a vertical natural ventilation duct. However, this method does not remove all odors in the room.

Need ventilation in a wooden house

AT wooden house, which is being built using the latest technologies, it is imperative to install a ventilation system. This is due to the high tightness of the building. The removal of dirty air through windows and vents is not a sufficient condition.

The natural ventilation system is attractive because of its low cost, but it is not able to quickly remove odors from the kitchen or humid air from the bathroom. For effective air exchange in the kitchen in a wooden house, you need to install a special device of appropriate power.

The supply and exhaust ventilation system is only enough to ensure the flow of fresh air into the house and eliminate excess carbon dioxide and unpleasant odors. For high-quality air purification in this kitchen, as well as natural system, not enough.

You can use a high-quality natural-type kitchen ventilation system, provided that it was originally laid down during the design of the house and carried out by specialists.

What hood to install in the kitchen of a private house

Before you learn how to install the hood, you need to determine what types of devices are and what filter system they are equipped with. In order for the cassettes not only to eliminate an unpleasant odor, but also to collect oily particles, a synthetic winterizer or interlining should be provided in their design. Filters of this type are disposable. Reusable cassettes are made of aluminum or steel, and special grease solvents are used to clean them.

There are also carbon filters that not only trap soot and fats, but also neutralize unpleasant odors. The disadvantage of such products is that they are disposable. According to design features extracts are of the following types:

suspended;
domed;
built-in;
island;
retractable.

flat

Hoods of this type attract buyers with their small size and simplicity of design. Since they do not have a chimney, they can be attached to the bottom of a wall cabinet. If the size of the device is not enough to close the stove, you should pay attention to retractable models. Such products are suitable for rooms with a small area.

Flat hoods work on the principle of air recirculation. They absorb it with fans, clean it, and then return it to the room. As a rule, such products are equipped with carbon filters.

Embedded

This type of hood also belongs to the recirculation type. Since the device can be installed inside a wall cabinet, it is unremarkable and harmoniously fits into the interior. The body is cube-shaped with a retractable panel for more air trapping. First, the hood is installed in the wall, and then the cabinet is hung.

Dome

A device of this type is distinguished by a large volumetric shape resembling a hemisphere or trapezoid. The design allows you to install powerful fans and several filters. Therefore, experts believe that hoods of this type are the most effective. Cleaning can be recirculated or through connection to a ventilation shaft. Such products are installed in rooms where there is no access to fresh air.

Installing a hood in the kitchen

Not everyone knows how to properly make an air purification system in the kitchen. This will require necessary set tools:

jigsaw;
drill or screwdriver;
a hammer;
screwdriver;
self-tapping screws;
tape measure and ruler;
corrugated pipe;
pencil and level.

Since the most common is the installation of a hood in the kitchen in a cabinet above hob, this option will be considered.

Preparing for installation

To install the hood in the kitchen with your own hands, you should prepare the surface and perform preliminary calculations. First you need to determine the distance from the hood to the ventilation duct and cut off the corrugated pipe. It is important to take into account the fact that the pipe is stretched, so you can make it a little shorter in length.

Since the cabinet must have an air duct with a cross section of 130 mm or more, a corresponding hole is cut out in the upper wall. It can be round or rectangular, depending on the cross section of the duct.

Chassis Installation

The case is fixed with self-tapping screws to the bottom panel of the cabinet. Sometimes it is hidden inside, having previously cut a groove of the appropriate size.

Exhaust fan connection

Since the power consumption of household hoods does not exceed 1 kW, they can be connected to simple sockets. Also, the connection of the hood in the kitchen can be made to the existing wiring. The cross section of the wire must be 2.5 mm, the conductor is stranded copper with a non-combustible braid.

Connecting the hood in the kitchen to the ventilation

The pipe is best brought to the ventilation along the top of the cabinets. It is advisable not to bend it at a right angle, as this prevents the free movement of air. Sometimes a back draft can be created in the ventilation shaft. A non-return valve is installed when connecting the hood and protects the room from the penetration of unpleasant odors from the outside. In a private house, the air duct can go through the wall to the street or into a special hole. A vent can also serve as a ventilation opening.

The air duct is inserted into the ventilation shaft and secured with a special overlay. It is desirable to fix the junction of the pipe with the exhaust channel with a clamp, but you can not do this if the power of the device is small.

When you need exhaust ventilation in a dome-type kitchen, you should consider that it is fixed to the wall. Therefore, holes are first made, dowels are inserted and the product is fastened with bolts or anchors. The connection to electricity and the ventilation shaft follows the same principle as described earlier.

What do you do with old furniture?