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At what height is the hood over the gas

How to choose a kitchen hood: help to determine the criteria

The choice of hoods for the kitchen is a fairly simple task, especially if you familiarize yourself with the main characteristics of this device (which, I must say, not so much).

But first, let’s say a few words about why the hood is needed and what functions it performs. The main task of hoods is forced ventilation and cleaning of air, which is inevitably polluted in the kitchen. These are fat spray, and sediment from burned impurities present in household gas, and ordinary tobacco smoke. The easiest way to clean such air is to simply remove it from the room. A more difficult way is to filter the air and return it back to the purified.

Thus, we determined the first parameter by which you need to choose an hood: whether it will remove contaminated air or return it back to the kitchen?

Hood: recirculation or direct.flow?

In most cases where you can install a direct.flow hood, it is better to choose it: removal of contaminated air will clean the room from extraneous odors better than filtering. Direct hood can be installed anywhere. The only condition is the presence of a ventilation system in the near future, to which you can connect it. It is not recommended to pull the duct over long distances: it will not only look too aesthetically pleasing, but will also lead to a decrease in the efficiency of the extract (it is believed that each turn of 90 degrees reduces the efficiency of the hood by 5%).

The direct.flow hood has a rough metal fat filter, which is designed to prevent the fat from settling on the insides of the device. the elements of the motor and the case. After all, this can not only lead to the failure of the motor, but will also become source of unpleasant odor over time. Such a filter is usually removable. It can be washed, it works throughout the life of the extract. However, experience shows that it often is not so easy to wash it, and sooner or later the user is faced with the need to replace the filter.

The recirculation hood usually has two filters: one of them, again, serves to remove oil particles (as a rule, it is made in the form of a plastic cassette, which must be replaced after a certain level of pollution). The second filter is coal, it serves to eliminate unpleasant odors. The coal filter is also disposable, and therefore it is subject to regular replacement. It is easy to guess that the costs of such “supplies” can be a significant amount (change the coal filter, for example, recommend once every 4-6 months). Especially if there are a lot in the house and often prepare.

GEFEST hood in 10 K45 can operate both in recirculation and direct.precise

Many hoods have a signaling of the need to replace a coal filter or care for a metal fat.down filter. This can be, for example, light indication on the control panel. A simpler option is special symbols on the filter that disappear as it is polluted.

Therefore, the recirculation hood is recommended for installation where it is not possible to install a direct-flow: in the absence of access to the ventilation shaft or where the air duct is not suitable for aesthetic reasons (for example, above the kitchen is the “island”). We also note that the work of recirculation extracts does not lead to a decrease in the temperature in the room (this may be important, for example, in country houses).

Direct hoods often allow working in recirculation mode: in this case, they will have to buy an additional filter for them, which is usually not in the kit.

height, hood

But it is better not to look at the budget hoods of direct.flowing type, which have no filtering elements: of course, they will cope with the removal of contaminated air, but soon they themselves will be polluted so that it will be quite difficult to wash them.

The height of the kitchen hood above the gas stove: standards according to GOST, norms

Gas is an open fire source. Therefore, the equipment is mounted above the hob at a certain distance. Only in this case is the effective operation of the equipment are ensured. According to the accepted standards, the distance to the kitchen stove depends on the type of hood:

  • Direct ventilation structures. angular, built.in, domed, flat. Their feature is the location of the filters parallel to the hob. In this case, the minimum installation height is 75 cm, the maximum is 85.
  • Inclined. the filter is installed at an angle relative to the hob. Recommended distance from 55 to 65 cm.

Important

To operate the plate more conveniently, it is allowed to change the height, taking into account the power of the equipment and technical characteristics. Take into account the growth of the one who will cook.

To find out at what height to hang the hood, it is necessary to establish the beginning of the roulette on the burner and measure the distance according to the technical passport. Be sure to take into account the remoteness of the outlet.

Types of kitchen hoods: which one to choose

In terms of calculating the correct height for installation, it is important to take into account two factors.

height, hood

Which hood to choose: dimensions

For equipment, two parameters matters. The first is width. It should be equal to the dimensions of the plate. But a slight deviation in the direction of increase is also allowed. in this case, the quality of work increases.

The width of the structure can be narrow (30-60 cm), standard (from 60 to 90 cm) and wide-up to 120 cm. The first version of the equipment is recommended for a two- or three-end slab.

Widespread high.quality air in large areas and differ in an original design. There are no restrictions on the shape of the hob.

Extensions of standard sizes are the most common. Can be valid, island or built.in.

The second important parameter is height. Low models from 10 to 40 cm are more often mounted on the wall or integrate. The standard hood over the hob has dimensions between 40-90 cm. And finally, high models are a choice for large rooms. Their height is up to 140 cm.

Types of exhaust units

What height to choose is most affected by only 2 factors: features of the installation of devices in a particular place and the type of hob. However, much depends on the height of the ceilings: where they are low, it is not always possible to mount the hood in accordance with the recommendations. In this case, the guarantees of impeccable work do not exist.

Classify hoods at the place of their location.

  • Wall models are considered the most popular, traditional devices.
  • Built.in “hide” in the closet of the kitchen set. Place for installation. the lower shelf of this furniture.
  • Island devices are ideal only for spacious kitchens, where the plate is the center of the small “universe”.
  • Corner structures are an excellent option if the hob is forced to be on the “outrage”.
  • Flat structures that are built into furniture are often supplied with electronic control;
  • dome dimensional units, always attached to the ventilation duct;
  • Included devices are modern and ergonomic options that facilitate cooking due to the lack of a shadow discarded and the risk of “earn” injury.

There are hoods according to the constructive features:

The latter type refers to flow systems. They are equipped with drawback (or folding) air intakes, entered into the working area only if there is a need to clean the air.

Rules, standards, requirements

When installing any exhaust system, it is necessary to take into account the recommendations of the manufacturer of the equipment, as well as the established standards. Each model has an instruction that indicates all the necessary information, including the optimal height above the hob. This parameter can be slightly changed at the request of the owners of the device, but the maximum possible increase is ± 100 mm. They usually change it due to the growth of the features of kitchen furniture. Another prerequisite is the coincidence of the width of the plate and air intake. If the size of the absorption surface is smaller, you will not have to wait for effective work from the device.

Installation over a gas stove

Dangerous gas equipment always makes serious requirements for operation. Their ignoring is fraught with formidable consequences: both for the owners of the house and for their neighbors. The lower parts of the gas firewalls are required to be removed from any structures hanging above them by 750-850 mm.

After buying running or combined equipment, it is necessary to consider the arrangement of the exhaust channel. Optimal construction of a separate air duct. If this is not possible, then the house venti.channel is divided in half: the dividing grill is installed, the second part of which is equipped with a hole for the pipe.

Installation of electrical (induction) slabs

Hobs that do not have fireprokes with open fire are not so demanding on the distance to the lower horizontal part of the hood. In this case, installing the device is allowed 100 mm below. Recommended height-650-750 mm.

How to act with inclined hoods?

These devices are the most “friendly” not only to the owners, but also to the height of the heating devices. It is recommended to retreat from the lower edge of the air intake 550-560 mm if the gas stove. When the hobs are electric, you need to leave the distance of only 350-450 mm.

In addition to the type of hob, the design of the room and the growth of the cook when mounting the hood, take into account the size of the kitchen, as well as the power of the device. However, if there is a need to slightly change the distance, it is better to increase it, since lowering the device below the standard value is still not recommended.

Calculation of the minimum necessary extract of the hood

As already indicated, the power of the kitchen hood can be calculated if necessary. For this, a special formula is provided:

For example, with a kitchen length 3, width. 2 and height 2.5 m. The productivity of the kitchen exhaust installation will be:

This amount of air will miss the unit within an hour.

It must be noted that the indicated coefficients (10 and 12) display the greatest return, so there is no capacity of power with this calculation. And in emergency cases, it may be needed.

In addition, this coefficient may depend on the type of plate used. So, for gas devices, it sometimes increases to 20 (through a significant influx of gas combustion), for electric. up to 15. Therefore, it is always necessary to assume excessive power, focusing on the calculated.

The given calculation is applicable for closed rooms that are separated from other closing door. If there is no one, but there is simply an arched opening that breaks the room into the kitchen and the dining room (living room), then amendments should be made taking into account such features. Since the calculation is complicated, the estimated power will be learned from special tables.

Rules for installing a device

The operation of the exhaust device depends on how the rules for its installation are fulfilled:

    The hob surface of any plate should be the same size with a ventilation device (standard 60-90 cm)-this will make it possible to absorb contaminated air;

Of course, the installation of exhaust equipment is best entrusted to specialists. But to do it yourself is also quite possible.

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Arrangement of channels for air removal

When installing air.exhaust channels, a large number of bends should be avoided, because their excessive presence will complicate the outflow of contaminated air. Therefore, it is desirable that the pipes are straight, short and almost without knees. They are installed in such a way so that the absorbed air can move from the bell to their subtle end.

height, hood

Paying channels for air discharge is also important not to narrow the holes and do not use additional connections, because this will limit the free advance of the air mass, and contribute to the excessive load on the extract engine. The section of the outlet pipe must correspond to the size of the opening of the exhaust unit.

The location of the outlet

The exhaust hatch, as a rule, is connected through an electric outlet, which is installed at the top (2-2.5 m from the floor level). Hinged kitchen cabinets, thus, it exceeds by 10-20 cm. And from the air supply it should be shifted to the left or right by 15-20 cm.

It is desirable that the socket has grounding, since with voltage drops it will be disconnected and will not make it possible to get out of the system of exhaust equipment. Hood is a guarantee of fresh air and purity of interior items. The main thing is to competently choose, install the device and at the same time withstand the distance between the stove and the hood in the kitchen. This will not only ensure the reliable operation of the equipment, but also create certain amenities. Buy, install it correctly and use!

How to Install a Range Vent Hood | This Old House

How to measure the distance correctly

Independently measure the height of the hood installation above the stove in compliance with a number of requirements. At first, before the installation, it is worth simulating the alleged process of work: leaning on the last burners, try to put a heavy pot. Do it better with an assistant.

Mark the minimum distance on the wall at which you can use the technique without problems. Further, according to the standards of the distance from the hob to the hood, measure the recommended height on the wall. The lower point will be the hob itself, and the upper. the hood filter. At the inclined device, its bottom is taken into account. The final measurement will turn out based on the average values ​​of norms and convenience in work.

Important rules for installing hoods

When going to fix the air receiver on your own, study in advance the rules that are guided by the installation. This is especially true for the norms and requirements for the height of the hood over the gas stove:

  • The width of the hood and the size of the hob should always match for the optimal performance of their functions, or be a little more. The main requirement is not already than the stove.
  • According to standards, the distance from the hood to the stove depends on the type of hob registered in the guide to operation.
  • The socket to which the device is connected, install as far as possible from the stove as possible. It’s good when it is located above the kitchen set or hidden outside the cabinet doors. Wires must be placed far from the sources of fire.
  • There should not be many angles and turns in the box and place of connecting the hood to the duct. Otherwise, the air, meeting many barriers, will leave with difficulty and excess noise.
  • The norms of the height of the hood over the gas stove should be observed, which are described in the instructions for the technique in order to avoid fire. There are no common boundaries of the distance from the GOST from the gas stove to the hood in the kitchen, but they exist for each manufacturer. You can get acquainted with them in the management of operation. It is worth adhering to these recommendations when determining the height of the hood over the gas stove.
  • In the absence of a ventilation, you should choose a circulation option. It is much easier to mount it.

The effect of the characteristics of the hood on the height of its location

The manufacturer gives the optimal distance to each type of hood in the instructions. The surface of the product is not the main factor. According to the standards, the minimum distance from the gas stove to the housing is determined, based on the easily igniting properties of fat from cooking, soot and other substances.

But there are a number of basic parameters that must be taken into account when installing for the most effective operation of equipment:

The hood over the gas stove is installed at a height of 0.75 meters if the equipment of low power (GOST requirement). Modern models can cleanse large areas. On average, the norm is 500-600 cubic meters per hour. You can fix such hoods higher to the ceiling, thereby increasing the working area.

The size of the hood should correspond to the size of the gas stove. If the dimensions are smaller, the space will not be completely cleaned of the exhaust air. Medium.sized hoods are not suspended too high. To be able to increase the distance between the stove and the hood, a model of 0.9 meters is purchased.

The air intake is built in a horizontal position or at an angle. In an inclined position, the lower border of the hood is lowered below the recommended parameter.

Placement under the ceiling

Ideally, if an extract socket is located under the ceiling. The most successful option is that the outlet is next to the fork in one place above the hood. This location is convenient and does not spoil the kitchen interior. It is not recommended to install an outlet behind the duct.

The wiring is better to do hidden. It will take more effort, but the work looks at a professional level. Also, the outlet can be strengthened in an open way, and lay the wiring in the wall.

Placement inside the kitchen furniture

A cabinet or kitchen shelf can serve as a place for a socket. They also strengthen the fork from the hood. A special technological hole is made in the back wall, a socket is connected. The hole is closed with a decorative lid.

In rare cases, an extract socket is installed in the middle of the wall, in the standard version. It may not be quite convenient. This location is mainly intended for the refrigerator, TV, electric kettle. From the aesthetic side, the wire that hangs from above spoils the interior.

The sockets in the kitchen Intended for Roset for the kitchen. Goosengz

Where and how to withdraw the duct

Airphone is an important part of the exhaust system through which contaminated air is removed. In multi.storey buildings, he is attached to the ventilation. Pipes of round or rectangular section can be used as air ducts. They are made of smooth or corrugated plastic, foil.

The use of round smooth pipes reduces the amount of dust accumulated dust, mud, improves the circulation of air masses. The diameter of the pipe depends on the similar parameter of the exhaust pipe. When installing the duct, you should leave the gap between the ceiling and the pipe. This is due to the fact that the operation of the system is accompanied by a small vibration. In the absence of a gap, the ceiling may be damaged.

You can install the hood yourself. In this case, numerous videos on the Internet are capable of performing an assistant, which show and intelligibly explain the entire installation process “from and to”. The main thing in this case is the observance of installation standards provided for by the design of the device.

What does the distance affect

Manufacturers do not just pay attention to the permissible rate of height of the hood from the stove. If the indicator is observed, the device will effectively fulfill its tasks, and it will be easier for a person to use its capabilities.

If you install the hood below than recommended, this can lead to many unpleasant consequences. A tall person will experience inconvenience during cooking and fighting his head on the case. One of the main risks is the possibility of a fire of soot, which is formed on the filter for a long time. Also, such an extract will be inconvenient to serve (to replace or clean the filter).

Also, the lower the hood is above the stove, the less it has a radius of the absorption of steam and other secretions. Therefore, it is important to adhere to the prescribed recommendations of manufacturers.

If the hood is installed high, the equipment performance will fall several times. To cope with the load, it will be necessary to include maximum power, which will incur high electricity consumption and rapid wear of the exhaust system.

It should be noted that there are no state standards on this issue, however, manufacturers always indicate in the technical documentation of the hood the permissible height of the device above the stove.

There are factors that directly affect the calculation of the distance from the stove to the hood. These include:

  • man;
  • Kitchen height;
  • Dimensions and type of hob;
  • Features of the layout of the kitchen;
  • Type and power of hoods.

It must also be borne in mind that there are norms for air ducts and electric networks. Compliance with all recommendations and competent installation of hoods above the stove will reveal the entire working potential of the equipment and ensure its comfortable operation.

Height from the stove to the hood of inclined and horizontal

Before you understand at what distance from the plate to install the hood, it is necessary to consider the main types of exhaust devices, which is the main factor when calculating the distance.

As for the operating mode, the following three types are distinguished, which have their own characteristics:

  • Recirculation. an extract that sucks the air with fans, passes it through coal and fatual filters and returns fresh air back into the kitchen;
  • Running. an extract that sucks the spent air, drives it through a fat.based filter and directs it outside the house using ventilation ducts;
  • Combined. universal version, the mode of which can be switched using the control panel.

In their form, the following varieties of hoods are distinguished:

  • Built.in (installed in a cabinet or other object);
  • Island (used in large kitchens);
  • Suspended (flat hood, which is installed above the stove);
  • Sliding (type of built.in type).

An important criterion: in the shape of the air receiver, the hoods are divided into the following varieties:

When selecting the height of the hood installation above the stove, it must be remembered that it is important to consider the dimensions and shapes of each type of device for installing equipment strictly above the hob.

Exposure manufacturers recommend the following indicators of the height of the hood above the stove. They look as follows:

  • The horizontal hood is best placed at a distance of 80 cm;
  • The inclined hood is best installed at a distance of 60 cm;
  • If the straight hood above the electric stove, then the distance is 70 cm, inclined. 50 cm.

It is important to note that the indicators are designed for an average kitchen with an average person’s growth, so it is necessary to individually calculate the height so as not to experience inconvenience during cooking.

Inclined hoods

So, at what height are hoods of inclined type? The peculiarity of the design of such exhaust devices speaks for itself: the air is absorbed by the fans, which are located in the upper part of the case. Accordingly, the equipment must be installed lower than the horizontal type.

The manufacturer is recommended to hang the exhaust device above the stove at a distance of 60 cm. This is an optimal indicator that will make it possible to use the potential of the device. Also, at such a distance, the case will not interfere with a person during cooking.

The inclined principle of the structure of the case is very convenient, because the user gets more opportunities to dismantle the filter for its subsequent cleaning or replacement.

Also, inclined hoods have a minimum risk of fire. The fire rises strictly up, so the contact with the device will be minimal.

If the choice fell on a built.in hood of an inclined type, it is important to take into account the height from the stove to the installation of the kitchen wall, so it is best to develop a plan for the kitchen room in advance.

Horizontal devices

What is the distance from the hood to the stove? The distance of the hood of the horizontal type above the hob is different from the above example. Manufacturers indicate in the technical documentation to the device an indicator of 80 cm.

However, many models are characterized by their performance. For example, a weak exhaust device should be located below to cope with the traction of the exhaust air.

It is also important to take into account the height of the ceilings, because, if you install the hood back to the ceiling, then there will be no room for connecting the case with the elements of the ventilation system, which is important for the normal operation of the equipment of a prototype type.

Also, do not strictly invest in size if a person’s height is higher than average indicators. Preparation should be pleasure and accompanied by comfort. That is why you should correctly calculate the most acceptable height.

It is recommended to take responsibility to the choice of island hoods. The distance must be calculated before the acquisition, because then it may turn out that the dimensions of the device do not coincide with the optimal distance between the exhaust and the stove (gas or electric).

Types of hoods for the kitchen

Currently, a wide range of kitchen hoods is presented in the domestic household appliance market, which in their execution are divided into the following types:

  • A suspension structure related to the most convenient in installation and practical exhaust devices suitable for most ordinary users. With all these advantages, such an extract, however, is not enough;
  • a exhaust device built into the walls or ceiling, providing the required efficiency of removal of smells and fumes from the premises of a significant area;
  • an exhaust device, decorated in the form of a dome, the action of which extends not only to the stove, but also to the working surfaces of the countertop located near it;
  • The so.called “island” hood, mounted in the center of the kitchen room and providing air exchange throughout its volume (including over the gas stove).

Ventilation requirements

For the full functioning of the device, the presence of a good ventilation duct is important. This requirement is valid only for stream hoods

Recircular systems do not need air to be allocated, so the rule is not applicable to them.

Without a properly organized aeronautics system, the following problems arise:

This creates an additional load on the internal engine. To cope with problems, the hood is put up for increased speed. Additional load leads to an increase in noise, wear of the apparatus and electricity consumption.

In apartment buildings, the air removal system is designed by the developer and is carried out according to established standards and rules. Connection to a common system is performed using a corrugated pipe.

Important! Connection is made short with a minimum number of bends. Any interference complicates the movement of air and create an additional load on the engine. In a private house, ventilation is designed before the start of construction according to approved norms and rules, state standards

In the absence of practical experience, it is better to entrust the performance of work to professional builders

In a private house, ventilation is designed before the start of construction according to approved norms and rules, state standards. In the absence of practical experience, it is better to entrust the performance of work to professional builders.

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