How to install a hood over a gas stove yourself. Installation and connection of a kitchen hood. How to properly attach an air duct to a hood

Cooking in the kitchen requires constant air circulation. Kitchen hoods with a ventilation connection are designed to eliminate odors.

A kitchen hood is a necessity in the modern world.

Installation kitchen hood can be produced on our own. Before that you need to choose suitable option with a certain power. The hood eliminates hazardous combustion products and protects the surface of furniture and walls from soot and grease deposits.

To independently connect the hood in the kitchen, you should familiarize yourself with the nuances of the installation process.

Products vary in composition, functionality and form. Before installation, you should familiarize yourself with the advantages of the proposed options.

Which type of hood should I choose?

Job exhaust structure depends on internal device. To standard devices. The mechanism of the product facilitates the removal of dirty air through the ventilation channel.

Recirculation devices clean the air from harmful substances using filtration systems and return it back.

Combined designs work simultaneously for extraction and filtration.

In order for the unit to work properly, it is necessary to clean the filters every six months.

Housewives really like the combined model

The following types of products are distinguished:

The hanging structure is attached under the cabinets. It is required for air recirculation. When performing installation, you need to ensure that the air exhaust device does not direct air onto the surface of the furniture.
A built-in or integrated hood is characterized by practicality. Such designs are sold already built into furniture. The devices have air exhaust and recirculation functions.
Tabletop products remove polluted air. The short drawing distance contributes to the efficiency of this process.
Mounting the hood fireplace type performed above the stove. Similar devices are different large sizes and functionality.
Island-type products are mounted to the ceiling and located above furnace structures, which are located in the center of the room. Designed for effective air removal.

Install the hood above gas stove possible at a distance of 800 mm, and above other cooking surfaces at a distance of 700 mm.

The size of the device depends on the design of the stove or oven. For a small electric stove is not required.

The dimensions of the exhaust device socket correspond to the plate.

The kitchen hood consists of the following elements:

the motor is considered the main element of the hood; the tightness of the winding helps reduce noise;
an engine impeller is used to draw in dirty air;
a multi-layer filter is used for fatty particles and requires frequent cleaning;
the elements are placed in a steel case.

The hood should not be less area hob surface

Correct installation of the structure

The most simple circuit To make a hood in the kitchen is to hang it above the stove between the cabinets.

When installing, you need to consider access to the socket and the outlet. Will need to be disguised.

It's worth considering your options before installing. The device body can be hidden in a closet, behind a special panel or in a special box.

Selection of tools

Preliminary calculations are carried out, since there may be a difference in the diameters of the corrugation and the air outlet. These structures are mounted tightly so as not to create noise and vibration. Attaching the corrugation to the wall is also tightly mounted.

To install the structure, additional sets of tools and special materials will be required. They are prepared in advance:

fastening parts, screws and dowels;
drill with different attachments;
screwdriver, scissors and hammer;
plumb line or level;
corrugation for ventilation;
mesh and grille for the outlet;
tape and jigsaw;
sealant and polyurethane foam.

Installation tools are available in almost every home.

Installation process

Sloping kitchen hood requires special attention. When installing it, you need to carefully study the instructions.

Before installation work, calculate the height of the hood above electric stove. The main installation steps are:

fastening the product to the wall;
connecting the structure to the placement of the filtration device;
electrical connection is made.

Installation consists of the following sequence of actions:

The device is checked for possible defects. Attention is paid to the lighting and functioning of filters and valves.
Measurements are taken to secure the structure. This uses a level. Markings are applied for dowels.
Before drilling, the power supply to the kitchen area is turned off.
The air vent is made of aluminum corrugation. The device is cut with scissors to the desired shape and mounted.
A damper is made - a valve box. For this, a thin sheet of metal is used. The product is attached using mounting foam to the ventilation hole.
The dome of the device is created. It is mounted on brackets or located in a wall cabinet. The holes are cut with a jigsaw.
Holes are made where dowels for supports are attached. The hood should be hung horizontally over the gas stove.
The corrugation is mounted to the hood using clamps. Joints are processed polyurethane foam and sealant.
valve A special grid is placed. To connect the hood to the ventilation, you need to check the tightness of all connections.
The device is connected to the outlet and a test run is performed.

When installing a ventilation structure, it is recommended to reduce the number of pipe bends. At each turn the power is reduced by 10%.

The duct bend must have a minimum number of elbows

Independent work must be carried out taking into account safety precautions. The following recommendations will help optimize the installation process:

Pipes can be bent at right angles.
Do not narrow the outlet part of the connecting structure, as this will lead to noise during operation.
The permissible height of the device above the stove is at least 650 mm.
It is necessary to regularly replace filters and clean them.
If stainless materials are used, then no aggressive agents are used for cleaning.
The additional installation of a check valve will protect against the return of contaminated air to the room.

Why is regular hood maintenance required?

After installing the exhaust structure, it is required regular maintenance products. The grease filter must be washed once every couple of months. The carbon filter will have to be changed every six months.

Reduces operational properties hoods burning gas stove without utensils. In this case, there arise frequent breakdowns designs.

If the device does not turn on, you should check the lighting mechanism to monitor the power circuit. If it is working properly, then there is a breakdown in the motor or control system.

When the motor operates at the same speed, the causes of the breakdown must be sought in the control mechanism.

It is worth considering the security of the device.

If the length of the power cord is short, then a socket is installed next to the dome. Do not extend the cord or use electrical tape for connections.
If it is not possible to install an additional socket, then an extension cord is used through a tee. As an option, a separate line is made from the shield. This work should be done by a specialist.
Since the hood is an electrical device, it is necessary to ground it.

WATCH THE VIDEO

To install the hood correctly, you need to follow safety precautions and select special tool. High-quality maintenance after installation will extend the life of the structure.

Today it's hard to imagine modern kitchen without a special hood installed above kitchen stove. Its main task is to remove all kinds of fumes generated during cooking. Due to this, the spread of odors in living spaces is significantly reduced, good ventilation is ensured, which allows you to keep the kitchen clean. If you do not install this equipment in the kitchen, it will inevitably lead to the following negative consequences:

The appearance of delaminations and cracks on the decorative coating of wall cabinets due to exposure to hot water vapor rising above the stove.
The settling of fat and soot particles that occur during cooking on the surface of the walls. Over time, this plaque becomes firmly embedded in the surface and the only way to get rid of it is to carry out repairs.
If cooking is done on a gas stove, then the smallest particles of soot formed during the combustion of gas settle in other rooms besides the kitchen.

We hope that you are now convinced of the need to install such important equipment in the kitchen. Installation work and correct connection requires certain knowledge and skills. But, having time, desire and having figured out how to hang the hood over the stove, you will be able to fulfill this work on your own.

General approaches to installing a hood

To provide efficient work It is necessary that the width of the hood be slightly larger than the hob. The height of placement above the level of the slab must be at least 70 cm, with the location strictly in the center, displacement to the side is not allowed.

Air removal is most often carried out in many apartments through a ventilation duct. At the same time, due to the layout of apartments and the furniture used, it is not always possible to install the hood in close proximity to the ventilation duct. Therefore, when choosing an installation location and performing installation, it is important to follow simple rule– the minimum length of the air duct and a reduction in the number of turns will increase the efficiency of the equipment.

Installation diagram

The manufacturer's instructions usually contain an installation diagram, which is a description correct location hoods above the stove, connecting it to the electrical network and ventilation system.

Preparatory work

At the very beginning, you need to make sure that the hood is working, otherwise you risk it after completing all installation work receive idle equipment. In addition, it is necessary to accurately mark the installation site and ensure that electrical outlet in the required place. The choice of outlet location is made based on the following factors:

The socket must be used individually for this equipment. To protect against short circuits and electrical overloads, it is advisable to use a residual current device.
The length of the cord (it is usually quite short) should be enough to reach the outlet.

It is advisable to place the socket slightly higher than the hood, which will avoid kinks and sagging of the cable.

Hood installation

Depending on the type of equipment used, the sequence and set of installation work may be different.

Standard flat hood

Installation of a standard recirculating hood is the simplest (since it does not need to be connected to ventilation) and boils down to fixing it to the wall above the stove. To do this, according to the markings, you need to drill holes in the wall, insert dowels and screw the canopies. Finally, you need to secure the equipment to the awnings and connect it to an electrical outlet.

Dome hood

Installation dome hood more complex. It is fastened to the wall using dowels and screws. For quality installation it is necessary to accurately mark (it is more complex than the standard flat model). In this case, it is advisable to use a level and plumb line. After drilling holes in the wall and driving in dowels, it is necessary to secure the structure to the wall using screws.

Connecting the hood to the ventilation system

This work can be done using different materials:

Plastic or aluminum corrugation. When working with aluminum corrugation, additional joints may be required since it is sold in pieces of a certain length. To avoid unnecessary joints, you can use plastic corrugation of the required length.
Boxes (round or rectangular). Thanks to its excellent appearance, allow you to more aesthetically solve the issue of connecting the hood to the ventilation system. True, there is much more work to be done with the boxes.

Regardless of the materials chosen, it is important to ensure that the joints are thoroughly sealed using sealant. This will ensure guaranteed removal of contaminated air into the ventilation system.

The correct choice of a hood, strict adherence to the manufacturer’s recommendations regarding installation and its subsequent operation will ensure long-term and high-quality air purification in your kitchen with minimal maintenance costs.

Video

We present to your attention a video about connecting the hood.

It’s hard to imagine a modern kitchen without this household appliance like a hood. Its main purpose is to remove polluted air masses and unpleasant odors outside the exploited space. Today, no one counts on ventilation in the form of boxes, because over time the channels become dirty and narrowed, as a result of which their efficiency greatly decreases. Therefore, a hood installed above a gas stove is perfect solution to remove dirt coming from the stove.

The classification of exhaust devices is based on the principles of operation and methods of installation of the devices. There are two positions that differ from each other in the operating principle of the device. Accordingly, their technical component differs.

Flow hoods. Simple model, in which the fan is installed. Their main task is to remove polluted air to the street or into the ventilation system of the house.
Recirculating hoods. They are designed with filters through which polluted air is driven through using a fan. It is cleaned and returned back to the premises. In this case, no connections to the street or ventilation ducts are required. Therefore, installing such a hood above the stove is the simplest.

Types of hoods in the kitchen

Recirculating hoods, in turn, are represented by a wide range of models:

Wall-mounted - they are mounted to the wall above the stove. The design of the device has mounting holes through which holes are made in the wall. Fastening is most often done with metal dowels. This type of hood resembles a dome in its shape, which is why they are also called dome or fireplace hoods.
Hanging. These are the most common models because they are attached to the bottom surface of a wall cabinet that is hung above hob. Mounting method – bolted connection to the closet. That is, before hanging the cabinet and the hood, you should place them on the table next to each other and mark the joints. Then, through holes are made in the lower plane of the cabinet using a drill and a drill bit. And then you can do it in different ways: install and secure the cabinet on the wall, and then attach the hood to it with bolts, or make the connection on the table, and then hang the entire structure on the wall.
Built-in. Today these models are very popular. This is due to the fact that you do not have to select the device by color and shape, because it will be hidden in a specially made for it wall cabinet. Only the control panel will be visible. Therefore, before installing a hood over a gas stove, you need to take its dimensions and make a cabinet for them. Or, conversely, select the right device to fit the size of the cabinet. However, before this you will have to accurately calculate its power so that it matches the dimensions of the kitchen appliance. As for installation, there are no difficulties here. The hood is simply installed in the cabinet and closed with a door.
Inclined. This type of hood is gradually gaining popularity due to the unusual installation. The device consists of two parts: a hood and a mounting panel, which is fixed to the wall above the gas stove. The equipment is made as follows: a horizontal line is applied to the wall above the slab, then the mounting locations for the holes are marked, after which the panel is applied to the drawn line, and an exhaust device is inserted into it.
Island. Installing such a hood over a gas stove - a special case. Firstly, the device received its name only because it is installed above the stove, which is part of the island kitchen set. Secondly, the hood is attached to the ceiling using special collets and pins. Installation occurs in this way: collets are attached to the ceiling, pins are hung on them, which are attached to the first ones through a thread. The studs are attached to the hood in the same way. Then the resulting fastening system is closed with a box. If a recirculating hood model is installed above the island, then the decorative box does not need to be used. This design is secured with cables that will be visible. There are designs that are fastened using a combined method, that is, both pins with collets and cables are used.
Angular. These are ordinary wall-mounted units that are attached directly to the wall. Only they are mounted not to one wall, but to two adjacent to each other, that is, to the corner of the room.

Ventilation duct installation

A ventilation duct is a part of flow devices that are made of plastic in the form of round or rectangular section, or in the form of a corrugated pipe.

In hoods, the outlet pipe has a round cross-section, so it is ideal if the ventilation duct is round. Today, manufacturers offer various adapters: from round to rectangular, from one diameter to another. That is, it became possible to use any pipes, regardless of their shape and size. The main thing is to choose the adapter accurately.

The pipe sections are connected to each other through double-sided couplings or bends. Typically, pipes have a slightly smaller diameter than fittings, so they fit easily into each other. At the same time, the joint is completely sealed, which is very important in the ventilation system. A corrugated pipe is a single channel that can be bent if necessary. On the hood it is also connected through an adapter. Fastening is done with plastic or metal clamps.

Technical indicators

To accurately answer the question of how to properly install a hood over a gas stove, you should additionally identify two more positions:

Hood installation height. As for the gas stove, this size should be 85 centimeters.
Device power. It is calculated using a formula that includes the volume of the room (kitchen) and air circulation. The first is the floor area multiplied by the height of the ceilings. The second is a standard value, which is indicated sanitary standards. For the kitchen this figure is 12 m³/hour. But for the room where the gas stove is installed, this coefficient is 15-20 m³/hour, depending on the intensity of use of the device.

There are two types of air exchange in the kitchen with a gas stove - general and local. Exhaust device directly above hob ensures not only the removal of gases and odors from the entire living space, but also necessarily in order to comply with safety measures and comfortable stay. To do this, you need to know not only how to calculate the required geometric parameters, but also how to correctly install the hood over a gas stove.

Documentary base

Job gas equipment, its maintenance requires compliance with approved construction rules and regulations. These include:
regarding the requirements for mandatory forced ventilation of such premises - SNiP 2.04.05-91;
standards for the hourly volume of exhaust air removed - at least 90 cubic meters for 4-burner stoves - SNiP 2.08.01-89;
required performance ventilation unit in the hood above a gas stove - at least 200 m3/h (GOST 26813-99).

These and other documents provide answers to emerging questions on the topic: how to install a hood above the stove?

In operating mode, the hood must localize the spread of odors and fumes, drawing them into the air duct. At the same time, the distance from the surface of the stove to the edge of the exhaust hood should be optimal to allow free work at the stove.

Performance calculation formula

Installing a hood above a gas stove will be justified if it completely ensures the removal of exhaust air. The required power of the device is determined by the formula:

N – required power,

Q is the volume of circulated air in the kitchen.

In turn, the volume is determined as follows:

where: a, h, b – length, height and width of the kitchen space, respectively.

According to the standards, the height of the exhaust device is selected based on:

power of the exhaust device;
the height of a person at the stove;
architectural features of the room.

This explains the size range: with a straight hood, its height above the gas stove is selected from 75-85 cm, the inclined model of the exhaust device in the lower part is 55-65 cm. At the same time, the width working part the exhaust structure must be at least the same size hob or even overlap the width of the slab. Therefore, first they buy a gas stove, and only then select a hood. Standard dimensions are usually indicated in the operating instructions. They can be changed to adjust a person’s height, but not downward.

Attention! All devices for purifying air from smoke and combustion products must have a certificate for installation in the kitchen.

When connecting the system to the ventilation hose, you should avoid its bends or make sure that there are as few of them as possible, and the outlet itself is of a minimum length. The air vent is composed of short and straight sections. In situations requiring a change in its cross-section, clamp adapters are used.

Types of hoods and operating principles

Local hood - turns on during cooking

There are two options:

The exhaust device works to remove unnecessary vapors, fats, and odors along with the air. During recirculation, the flow passing through the filters is cleaned and returned back.
The hood is connected to the ventilation hose. Dirty air masses, being captured, are immediately transported from the premises. As an option - direct output through the wall directly to the street.

Parameters for selecting a hood

The main indicator of the exhaust device is the maximum permissible volume of air removed per unit of time. Bandwidth hood is indicated in her passport.

Installing a hood above the stove takes into account:

hob width;
dimensions (area) of the kitchen;
ceiling height;
number of household members living;
frequency of food preparation.

Based on this indicator, a model of the required performance is selected and the height of its suspension is determined. Purchase better model With several adjustable modes power.

Hood installation

Preparation

Before proceeding with installation, select right place for equipment - gas stove + hood. The photo shows an electric stove - the recommendations are also relevant for gas objects.

Before installing a hood over a gas stove, you need to first prepare the room.

Mark on the kitchen plan the location of all communications, as well as installed appliances, if the installation is carried out in an already used room.
The energy dependence of the hood requires the presence of an outlet (but not above the stove!) with 220 V connected. A model with an automatic switch is preferable: it will always turn off in time if an emergency occurs. short circuit or fire. If the kitchen is not equipped with a grounded socket, the rules for installing a hood over a gas stove require that a separate RCD (16 A) be provided in the electrical panel. Connect to the network a line of three wires “zero”, “phase”, “ground” in yellow insulation with a green stripe running along it.
The value between the exhaust device (lower edge) and the surface of the stove (burner) is measured.
The completeness of the package is checked for the presence of the necessary fasteners, hooks, dowels, etc.
The location for attaching the structure is marked.

Installation

the air duct is assembled. It can be with square or round. Standard option– size 130x130 mm Better to choose plastic construction with smooth internal surfaces. Its diameter should be the same along the entire length, correspond to the cross-section of the ventilation hole and, preferably, have check valve.
Using a hammer drill, holes are drilled for the hood clamps.
The screws are screwed in.
Using a level, check the horizontal installation.
The hood is hung (without a box).
Connects with exhaust pipe connected to the channel.
The hood is connected to an electrical outlet. In the absence or short cord an autonomous line is drawn from the panel or diverted from the outlet closest to the hood. Performing twists, insulated insulating tape in places where the missing part of the cord is added, it is strictly prohibited.
Test run underway technical device in all modes.
During normal operation final stage the box is fixed.

Exhaust equipment installation options

According to installation design, exhaust devices are:

built-in type - the entire installation is hidden in a hanging cabinet;
fireplace and dome type - the structures are fixed on the wall;
island model - mounted on the ceiling;
corner hood - placed in the corner;
flat model - involves two planes of fixation: from the back - to the wall, from above - in the hanging cabinet.

Any of the models provides a certain type of filter elements that absorb strong odors, grease and other secretions.

Used as filters

Grease traps are installed only in kitchens with a ventilation shaft.
Carbon filters are elements of modern treatment systems with recirculation mode of operation.

Even if installation instructions are followed exhaust system and operation, the efficiency of work will be reduced if preventive maintenance is not carried out in a timely manner: clean surfaces, change filters. Thus, creating the conditions necessary for a safe and comfortable stay in the kitchen is not difficult at all. Various methods are used for this. But exactly coercive system with local hood above the stove is considered the most optimal and common option.

While cooking food, fumes and various fumes rise from the stove to the ceiling. After some time, it becomes difficult to breathe in the room - this means that the polluted air is not drawn out well enough through the vent. Therefore, it is necessary to install a kitchen hood for forced circulation air. But first you need to decide what operating mode of the unit is required in your case, and then how to install the hood in the kitchen correctly.

Forced ventilation devices for the kitchen vary in operating mode. The units are:

They pump contaminated air through a block of filters, consisting of a preliminary filter (for rough cleaning) and a carbon filter (for cleaning the air from odors). This unit does not require connection to ventilation duct, so in this case the installation will be the simplest. But, in terms of the quality of air purification in the room, this type of device is inferior to flow-through devices.
effectively pump out polluted air from the room into a ventilation shaft or channel, which is discharged outside (if you install a hood in a private house).

Required device power

Connecting the neutral wire to the solid neutral

There are several types of air ducts for domestic ventilation on sale:

PVC (plastic) air ducts They have good strength and light weight. Thanks to the smooth coating, they do not create noise when flows move along them.
Aluminum corrugated the air duct bends freely, stretches and is easily adjusted to any size. It does not create vibration or hum, but has an unaesthetic appearance, therefore, it is usually hidden in a closet, a special box, or hidden by a suspended ceiling.

Before installing a hood in the kitchen, make sure that you do not cover the only standard vent in the room with a pipe. In the case of one vent, they often make another exit from the shaft and install a check valve that will close the flow into it when the device is turned on.

There is also the option of using a special box with a clapper valve.

In the picture, the installed valve is red. With the fans turned off, it lies horizontally and air can pass through the box unhindered naturally. When the fans are turned on, the valve rises and blocks the air outlet back into the room, thereby directing it into the shaft. The material can be any lightweight material, for example plastic or aluminum. But this option is not suitable if a built-in hood is installed, since it is mounted in a wall cabinet.

For private houses the best option will punch an additional hole in the wall for the channel and not affect the existing vertical one. The air duct from the device must be routed into the additional hole. But at the output it must be installed check valve, preventing outside air from entering.

Check valve

If in ordinary apartment there is no additional channel, and punch a hole in external wall is not possible, then this channel can be expanded and a special adapter, having two holes.

Through the lower grille, air from the room enters the shaft due to natural draft. At the same time, there is a visor in the upper hole that prevents the air flow from the unit from escaping through the grille back into the room. Although there is of course a return leak, it is minimal compared to the outgoing flow.

The figure below clearly shows how the air duct is connected to the adapter, while maintaining natural draft.

Thus, installing a kitchen hood with your own hands is only possible for home craftsmen. Completing the task requires accuracy and attention. Well, for those who do not have the skills to use tools, or do not have free time, the best option would be to invite a specialist to resolve this issue.