Rules for installing the hood in the kitchen

Hood installation is a necessary measure, especially for kitchens in apartment buildings with poorly functioning natural ventilation. The correct air cleaning device should be the same width as the stove or slightly protrude beyond its edges. The height of the location and the type of attachment depend on the type of hob, functions, modes and power of odor-eliminating devices.

Functions of exhaust devices in the kitchen

The main task of the hoods is to clean the air from unpleasant smell, harmful particles of soot, smoke. Forced ventilation will provide indoor cleanliness and fresh air, prevent the development of many respiratory diseases, the spread of allergens. The operation of the main functions is simple and straightforward. But modern models can be equipped with additional useful features. To make exhaust control as pleasant as possible, manufacturers use the following designs:

  • Sensors, digital display;
  • The ability to control from the remote at a distance;
  • Automatic, arbitrary timers;
  • Sensors that react to external changes (steam, humidity, temperature, movement of objects, etc.).

Modes of drawing

Exhaust equipment can operate in two modes. This is a common air outlet and recirculation. Some modern models are equipped with two functions, replacing the mode of operation when switching.

Air cleaners are removed from the kitchen through the ventilation system oxygen, saturated with evaporation, particles of soot. Fat, burning products, odor are also eliminated. A powerful exhaust motor draws out polluted air in a timely manner, preventing grease and soot from settling on the inside surface of the device.

Filtration and recycling mode allows you to draw in harmful impurities along with the air, clean and return it back to the room. This method of cleaning is usually used in rooms without natural ventilation, in the absence of the possibility of connecting to the ventilation duct, if the traction is very weak. The equipment copes with the task thanks to a carbon filter.

What power should be exhaust

The main indicators when choosing a hood - the volume of air to be purified, technical data. The capacity indicated in the documents by the manufacturer indicates the amount of intake of cubic meters of air per hour. During this period, the oxygen in the kitchen is updated, processed 15 - 20 times. It depends on the intensity of evaporation.

The power of the exhaust device depends on the performance of the fan. The optimal characteristics of the equipment are calculated using a special formula, taking into account the kitchen area, the height of the ceilings, the number of family members, and the type of hob. The efficiency of the installation is affected by the performance. The sharp bends of the duct, the pipe with corrugated walls add noise and reduce performance by 5 - 10%.

If the owners of the apartment or house are smoking in the kitchen, it is better to choose an exhaust hood of increased power. But it should be borne in mind that such models can not work silently. The best option - devices with power control. Periodic cleaning of filters will also help to reduce discomfort.

Types of hoods and installation technique

Upgraded hoods vary in many ways. When choosing a device, it is necessary to take into account not only the appearance and power of the equipment, but also the method of mounting above the slab, a set of useful functions and other factors. Before buying such a product, you should make sure that all necessary requirements are taken into account: performance, practicality, decorative features, type of installation.

Suspended

The peculiarity of the suspended models is work without exhausting the air on the principle of recycling. Flat hoods suck up steam and odors and clean with filters. The main role is played by grease catches. Models from a low price category are equipped with an acrylic filter, and more expensive ones with aluminum.

The name got the hood because of the method of installation. In order to save space, it is fixed on the wall between the kitchen cupboard and the ceiling parallel to the surface of the stove. The equipment is fixed with screws, made into a decorative box or furniture slot for corrugated pipes. One side of the hose leads to the device, and the other to the ventilation duct. Suspended hoods have many advantages:

  • Easy installation;
  • Energy savings at work;
  • Minimum noise;
  • Reusable filtration system;
  • Nice, compact design.

Embedded

Models successfully hide in various kitchen furniture and do not violate the interior style. The power of such hoods will be quite enough for typical Khrushchev. Due to the peculiarities of the installation, they take up little space, the frame and duct are placed in a special cabinet.

It is necessary to start the installation of air purification equipment from furniture. If the cabinet fits the size of the device, you just need to make the necessary holes in it. If the hood is more than the prepared compartment, the cabinet is dismantled or a special box is used for fastening. Over the design set the facade. The advantages of built-in hoods include the following features:

  • Devices do not stand out in the general interior;
  • High power with small dimensions;
  • Large selection of sizes, additional functions and other parameters;
  • Simplicity of installation, both inflow, and circulating models.

When installing a built-in hood in the kitchen, it is necessary to observe the recommended distance from the device itself to the burners. For gas stoves - 80 cm, for electric - 65 cm. Too low an arrangement endangers the safety of the equipment, and high - will not be effective.

Wall mounted

Popular modern version in the form of a pipe is different way of fastening. The wall hood is mounted above the hob, and the box and filters are attached directly to the wall. Such models can work in any of two modes: filter cleaning, air outlet to ventilation. The device is completely visible. Therefore, when choosing equipment, one should take into account the compliance of its design with the overall style of the kitchen. Hood can be flat as a picture or bulky in the form of a dome.

At the first stage of installation, it is necessary to mark up the wall and designate the location of the device where it will be hung. Then you need to determine the placement of the duct. Work is simplified if the ventilation window is located above the stove. For long distance, a corrugated hose will be required. Non-aesthetic items can be hidden in a drywall box.

Inclined

These models have an interesting design, compactness. Inclined hoods are arranged at a certain angle to the horizontal. They are characterized by high performance. Air-cleaning equipment can be mounted by hand in the middle of wall cabinets. There is a great opportunity to choose from a large range of hoods of any stylistic direction.

Inclined exhaust units often operate in the mode of output of air masses through the vent shaft. Even with the smallest dimensions, they do an excellent job with the task.

The specificity of the installation is determined by the device model, the type of plate surface. The use of heat-resistant materials in the manufacture of the hood body allows you to hang it much closer to the cooking surface. The optimal distance from the electric hotplate is 35 cm, from the gas one 55 cm.

Corner

Corner type air cleaners are suspended. Manufacturers produce T-shaped models or dome-shaped. You can also find inclined flat devices. But for their installation will require additional preparation of the corner walls. This arrangement allows you to harmoniously hide the duct, disguise communication. It will be attached to the walls or edges of the wall cabinets.

Corner hoods can not be called cheap. When choosing, you must pay special attention to the material. They can be steel, aluminum, with a ceramic, glass coating. There are also many models that fit only in a certain angle. The exceptions are dome, round designs.

When choosing appliances for an already equipped kitchen, it is necessary to verify its dimensions with the stove. It should also be intended for angular positioning. This combination will add some zest to the interior. If in terms of installation of a retractable structure, it should be provided for its unhindered use.

Island

The range of such models is minimal. More often island designs are made on an individual project, taking into account the smallest features of the cooking surface and the room as a whole. Designer product fits only a specific kitchen set, located in the middle of a room with borders at one wall or without borders at all. Island devices differ only in their placement method - hanging from the ceiling.

The shape of island extracts are of three types. Flat panel looks weightless, sometimes standard and folding. It can be embedded both near the work surface and under the ceiling. Dome hoods look great in spacious kitchens. Curved flat panel - a combined product.

Installation of the air duct and laying of communications takes place under the ceiling. In the future, hoses and wires are hidden behind a suspended ceiling covering. Attach these hoods with cables or studs with collet.

Electrical connection rules

After the correct choice of the hood is made, you need to think about its safe connection to the power grid. All devices operate from 220 V, which allows power from a simple outlet. You can save the warranty if you connect the hood to a grounded socket with a high degree of protection. The socket for air cleaning equipment must comply with the following rules:

  • The presence of IP62 marking ensures safe performance when wet (suitable for kitchens, bathrooms);
  • Minimum distance from tables and shelves - 20 cm;
  • The distance to the side of the hood body is at least 30 cm;
  • If the total power of household appliances in the kitchen exceeds 4 kW, a separate line must be drawn for the exhaust;
  • It is better to place the socket above the floor and the gas source, at the level of 1.5-2 meters.

The power of most hoods does not exceed the average rate of 500 watts. Therefore, in the absence of a nearby power outlet, the device can be powered by a loop. Strobit wall is not necessary, you can use open wiring by placing the cable in a special plastic box.

Installation of the ventilation duct

The work of the hood is carried out by connecting to the ventilation duct. All contaminants from the kitchen are discharged into the mine at home or thrown into the street. As an air duct, you can use a plastic pipe or corrugation. The latter method is not popular because it produces a lot of noise when working.

Air ducts are round and rectangular. For each use their own type of attachment, shaped adapter, hidden method in the wall. During installation, all requirements indicated in the equipment passport should be taken into account. Air ducts of the same diameter are used for the ventilation duct, turns and restrictions must be minimized.

Duct size

The effective work of the exhaust depends on the size of the duct. When buying a product, it is necessary to calculate its diameter. A pipe made of any material should fit precisely both to the vent hole and to the hood. An incorrectly calculated value will significantly reduce the efficiency of the equipment, increase the load on the joints, and increase the noise.

It is possible to calculate the size of the corrugated pipe correctly by measuring the diameter of the nozzle on the hood and the opening of the ventilation channel itself. If the duct is smaller, it is necessary to expand it and ensure complete tightness by attaching an adapter of a suitable diameter.

According to the standard dimensional mesh for round ducts, you can find products with a diameter of 8 to 30 cm in sales. Rectangular products for T-shaped, recessed hoods must be supplemented with adapters. The most running dimensions are 5 x 10 cm, 8 x 15 cm.

Before buying corrugations for an air duct, it is necessary to clarify its length in a stretched form. The ideal size with a margin is 3 meters. You can always get rid of surplus.

Fastening corrugations to the hood and ventilation

Before starting work, it is necessary to clean the ventilation in the house or apartment. Then you should check the integrity of the duct. Plastic pipe inspect for the presence of chips, various defects. Corrugation must be stretched to its full length, inspect the components. Then it is necessary to seal the neck of the hood and seal it with a pipe. It can be fixed with a special clamp or ordinary wire.

While the design dries, you can do the preparation of the vent. We fasten a special grille with a ledge with screws to the wall, put on a corrugation or a plastic pipe with a compactor and fix it with a clamp. When installing, be sure to leave the grille hole open for natural air circulation. You can check the efficiency of the hood by bringing a piece of paper to the surface of the switched on device at full capacity. Sheet holding is a sign of good mounting and proper suction.

Fastening the duct to the wall

Light, short pipes made of plastic can be simply glued to the wall, the wooden surface of the furniture with ordinary silicone. This method of fixation is not suitable for walls lined with tiles or plastered with wallpaper. Also, difficulties will arise with a long air duct, more than 100 cm. In this case, tightening clamps with dowels are used for fastening.

Metal exhaust pipes are attached to the wall using bracket-hinges. The solution is unique for all sizes and does not depend on the distance of the installation site. Thanks to this method of attachment, you can reduce the hum, vibration. Also, the use of bracket-loop allows you to further compress the joints of some sections.

How and where to display the duct

If problems arise during the installation of the hood, it is impossible to crash into the natural circulation channel, then the only option is to leave the duct outside the room through the wall. Such a solution would also be best for a private home. If possible, the hood should be placed on the opposite side of the window.

To bring the pipe to the street will need to lay a channel of minimum length. It is better to use a corrugation of a circular section, to do with just one turn. Eliminate the flow, freezing of the channel can be, if you install a check valve. Also, it must be insulated with a moisture-proof insulator. A protective umbrella is installed on the pipe from the outside of the wall to prevent it from getting wet.

The duct before being sent to the wall must be placed in a special box. This should be a durable plastic, plasterboard construction that can withstand its own weight and the weight of the exhaust pipe. All parts of the box are tightly adjacent to each other. Before you finally mask the duct, it should be checked for leaks.

Conclusion

Installation of the hood can be done independently with a minimum set of tools. When carrying out electrical work, one should not forget about safety. Strict compliance with the installation recommendations will avoid numerous problems during operation. It is necessary at least once every six months to change the filters and carry out a major cleaning of the exhaust device. If this is not done, the equipment will stop performing its functions.

Watch the video: Commercial kitchen installation to latest standards (March 2024).

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