Exhaust hood with grease trap – when the hood can’t handle it. Kitchen hood: concept, varieties, features How a kitchen hood works

The Bastion ventilation plant offers its customers high-quality products manufactured on time. The company is one of the market leaders not only in St. Petersburg, but throughout Russia.

In this article we will talk about the use of exhaust hoods in various conditions.

Operating principle and varieties

In the kitchen of a modern housewife and in catering establishments, an exhaust ventilation hood or dome is installed. Its main task is to purify the indoor air from high humidity, odors, various impurities, the occurrence of which is associated with the cooking process.

The exhaust hood is component high-quality indoor ventilation system. Installation occurs over sources high temperature, in particular, over slabs, hobs, open fire. The dome removes moist hot air, unpleasant odors, as well as soot, grease, soot, dust, chemicals.

Air purification from harmful impurities is also necessary in laboratories, chemical and industrial production etc., where the production process occurs with allocation to space harmful substances, which could harm workers and environment generally.

The umbrella is a dome-shaped structure, hence the second name - dome. Connected to the ventilation system by an air duct. There are central (island) and wall-mounted, depending on the installation location.

Wall-mounted units are installed directly on the wall. If the weight is large, additional brackets are used for fixation. Central devices are installed directly above work surface, without contact with walls. Island umbrellas have a large capacity.

A modern dome is not only a complex device, but also a decorative element. Factory capacity allows us to produce umbrellas in accordance with the overall interior of the room.

There is no fundamental difference in structure between domestic ventilation domes used in private households and industrial ones; they are distinguished only by size and power characteristics. Umbrellas used indoors have a common structure:

Grease filter. It can be mesh (made of a mesh with small cells) and labyrinth (a plate with grooves through which condensed fat enters a special compartment). The first type of filter is inexpensive, is installed only in a horizontal position, can be additionally equipped with a spark-extinguishing mesh, but requires frequent cleaning. The labyrinth grease trap is installed only in an inclined position and does not require frequent washing.
Spark arresting mesh. A mandatory element when installing ventilation domes over sources of open fire, for example, over barbecues and grills.
Pendants. Part of a mounting system that allows you to mount an umbrella on a wall or ceiling, distributing the weight correctly.
Turbines. The equipment is designed to stimulate the movement of air masses from the room. During installation, the center of the working surface and the dome must be correctly determined in order to achieve maximum efficiency. The cross-section of the exhaust hood inlet must exceed the dimensions of the stove or other equipment over which it is suspended. The height of the suspension varies from 0.7 to 1.1 meters.

When choosing a manufacturer of an exhaust dome, give preference to domestic factories, so you can save your budget, and the quality of modern products from a reliable seller is confirmed by certificates and quality control.

In rooms where a lot of steam, grease and combustion by-products are released into the air mass (and this is most often kitchens), it is necessary to clean the air in a timely manner. To completely absorb harmful fumes that pollute the air mass, exhaust hoods are installed over sources of unpleasant emissions.
These devices perform the function of timely air purification in catering establishments, kitchens, canteens, restaurants and supermarkets, in the premises of chemical plants

Internal organization

A kitchen exhaust hood is a metal box in the shape of a cap, which is connected through an air duct to the ventilation system. But its functionality increases significantly if its design includes a grease filter that cleans the air mass from oily contaminants and fatty impurities. Most often sold exhaust hood without fan. Models with a spark-extinguishing grill designed for installation above an open flame have positive responses.

An exhaust hood removes heated exhaust air and pollutants from the room, but does not provide a sufficient amount of fresh air mass. Therefore, it is recommended to install the structure only where there is an influx of fresh air regardless of the device. It is necessary to correctly calculate so that the volumes of extracted and supplied air are the same, only then will comfortable conditions be ensured in the room.

There are also supply and exhaust hoods on sale that not only remove exhaust air, but also pump in new air. Hot air has low density and rises to the top, and is replaced by cold air mass.

The material from which these devices are made is stainless food steel, so when hot air gets into the inner walls of the case, oxidation does not occur. Advantages of stainless steel:

resistance to corrosion processes;
durability;
fire resistance;
ease of care;
resistance to moisture and steam.

The seams of the body are treated with argon welding, therefore they are characterized by increased strength. Main element metal structure– grease trap.

The exhaust hood for the air duct consists of two parts:

The operating principle is simple. The air mass with particles of fat, soot and soot enters the filter device. Here the air hits the internal bridges of the filters with force and is purified (during impacts, combustion by-products and the air mass itself fall apart).

After purifying the air, the fatty compounds in liquid form slowly settle and move through the drain channel into the receiving tank, which is located at the bottom of the device. After completion of the work, this container is emptied and thoroughly washed with an anti-grease agent. To clean the glass faster next time, pour 4-5 drops into it in advance. detergent. For ease of use, the filters and reservoir plugs are removable and can be easily removed, cleaned and reinstalled.

Classification of exhaust hoods

Depending on the scope of application, exhaust hoods are divided into two types:

household

These are two separate concepts, but the difference between them is internal device is small.Industrial exhaust hoods have the following features in comparison with household appliances:

large dimensions;
high fan performance;
use of other types of grease filters.

IN household models Dimensions are adjusted to the dimensions of gas and electric stoves used in houses and apartments. True, the difference between an exhaust device operating in a kitchen is huge. country house, and there is practically no industrial model.

Depending on the location, exhaust hoods are:

Wall-mounted – simple devices, which are attached directly to load-bearing wall over heating appliances. The filters inside such models are located in one line.
Island - these structures are attached directly to the ceiling with studs or chains above the equipment in the middle of the room. Such models have two rows of filter devices.

There are also outdoor models for barbecues and grills, which are an empty dome inside without additional elements

They trap smoke, heated air and fatty impurities. The principle of their operation differs from the devices; they operate thanks to umbrella-transitions, which are shaped like a cone. Conduct preliminary calculations It is more difficult to install them correctly, but they can be used over an open flame without fear. But devices used indoors are often equipped with a fan, purifiers, and a grill. There are also complex designs called fume hood tables, but they are not used in everyday life or in food factories, as they are intended for chemical laboratories.

Characteristics of exhaust hoods

Kitchen hoods are used everywhere, as these devices are easy to maintain and operate. The main thing is not to forget to promptly clean the storage container from oily contaminants. Compliance with the rules of use and safety measures when working with such equipment will not be difficult.

Stainless steel exhaust hoods are manufactured in strict accordance with current standards and regulations for the production of food industry equipment. Manufacturing of exhaust hoods from quality materials– the key to their successful and safe work in future. Therefore, the use of this ventilation equipment is safe both for people in the room and for the atmosphere. During operation, no harmful substances are released.

The choice of exhaust equipment is wide. There are kitchen hoods on sale in any color, configuration and size.

The device is selected in accordance with the interior style

If the presented models do not meet the client’s requests, it is also possible to manufacture ventilation hoods to order. Many companies offer the opportunity to arrange individual production of a custom-made ventilation structure according to the developed drawings.

It is important to choose the right device with the required performance. If the device does not perform its functions well, then there is no point in installing it at all. If the device works at its maximum, it will fail faster, and the energy costs will be significant. Power is the most important characteristic of the device. For high-quality air purification in an ordinary kitchen, a device with a capacity of 500-650 m3/h is sufficient. For catering establishments, industrial devices with a capacity of up to 1800-1900 m3/h are suitable.

Since in many enterprises there is a problem of oily impurities settling on the surfaces of devices, exhaust hoods with grease filters are deservedly popular. An exhaust hood with a grease trap works on the following principle: the contaminated air mass enters inside by self-propelled force or with the help of a fan, where the grease settles and flows off the tank, while clean air, meanwhile, enters the air duct. Grease filters come in different types:

cassette,

from paper.

The control system can be different: push-button, electronic, touch. Push-button controls are easy to understand for people of all ages, but they cause a lot of inconvenience when cleaning (dust, dirt and grease collect near the buttons, which is difficult to clean). Touch panels are more practical, but not as easy to understand for older people. It is easy to care for the electronic panel: just wipe its surface regularly with a soft sponge.

Installation of exhaust hoods

There are traditional ways to install ventilation umbrellas:

Using anchors. This method is considered the simplest. But the main condition is that the wall must be load-bearing, level and strong (stone or brickwork). Based on the length of the device, calculate the number of holes (2 or 3). Carefully and symmetrically place marks for drilling on the back vertical wall of the umbrella. Holes are drilled through which the umbrella is attached to the wall using anchors. If the overhang is more than 100 cm in length, then the device is additionally attached to the ceiling.
Using hairpins. 4 holes are drilled at the top of the four edges of the apparatus (ears for the studs are welded). The studs are pre-fixed to the ceiling. Everything is simple, but one condition must be observed - the height of the room should not exceed 4.3 meters.
On cables and chains. This method can be used to secure the exhaust hood at any height. 4 brackets are welded in the upper plane of the device. Cables or chains are attached to the ceiling and secured via a carabiner to the apparatus. The only disadvantage of this design is its instability, which creates additional inconvenience when tying air ducts.
Special support frames. Depending on the size of the umbrella, a support frame is made from a stainless steel profile with four legs, which are securely attached to the floor through plates. The device is installed on it. The design can be rectangular or square, the height is set individually. Such designs look presentable and neat. Therefore, in rooms with high ceilings and equipment located in the middle, this option is the most optimal.

Exhaust hoods are mounted not only over stoves and hobs, but also over other heat-producing appliances (grill, oven or deep fryer)

When choosing exhaust hoods, take into account the dimensions of the stove or hob over which the device will be mounted.

The device (exhaust hood over the stove) must be at least 10-15 cm wider than the stove. The mounting height above the equipment ranges from 0.7 to 1.1 m.

The location of the kitchen hood is determined by the location of the stove. If the equipment is located near a wall, then exhaust device It is advisable to install on the same surface.

It is not difficult to install an exhaust hood with your own hands for a person who has at least a little knowledge of construction, repairs and tools. When installing, you must follow these instructions:

Determine the location of the exhaust hood on the wall, taking into account all dimensions: 10 cm wider than the slab and 70-75 cm higher.
Cover kitchen set film or paper to facilitate cleaning after completion of work.
Take a circular saw and cut an opening in the ceiling the right size for the air duct.
Using a long drill, drill a hole (1 cm) in the center of the resulting opening - this will be the center of the air duct.
Using chalk or a felt-tip pen, draw a circle on the outside of the roof, starting from the drilled hole.
Carefully saw through the roof covering and lower sheathing.
Place the fan for the exhaust hood in the hole cut in the roof.
Secure the pipe and flange, fill the voids at the joint with sealant.
At the bottom, fix the pipe with the ventilation channel.
Connect the fan motor to the outlet and lead the cable inside to the kitchen through the ceiling.
Take a flexible channel and connect it to the pipe. Check all connections for strength, wrap them in foil to seal.
Fix the brackets to the wall with screws and hang the umbrella on them.
Connect the fan cable to the outlet.

It is easy to install a household exhaust hood, and it is better to entrust the installation of large models to the workers of a reliable company. It is easiest to install a kitchen exhaust hood without a fan. The main thing is to adjust the umbrella closer to the chimney pipe or air duct, then the polluted air will be easily discharged outside.

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The exhaust hood is necessary element rooms where the air is exposed to pollution. First of all, these are any kitchens, including restaurants, and chemical production. And the higher the intensity of pollutants, the better the air purification should be.

What is it and how does it work

The design of the umbrellas is quite simple. For example, a rectangular umbrella includes a main body, a tray for collecting grease and filters that perform a grease-collecting function. The tilt angle of the filters is 45°.

The chimney ventilation hood can also be equipped with additional elements: lamps, fans, connection ears, etc.

Design and principle of operation: hot air, formed above the thermal surfaces and having a lower density, rises up, is drawn into the hood and enters the pipe, where there are special grease-removing labyrinth filters. Fats from contaminated air masses condense and flow through special drain channels into the bath, and the purified air enters the air duct, which has a round or rectangular shape, through which it is discharged outside (in recirculation mode, the purified air is returned back to the room).

What are umbrellas made of?

Umbrellas are made from of stainless steel with a high nickel content, which guarantees their long term service and the necessary strength. There are hoods made of aluminum and glass.

Specifications

When choosing an umbrella for the kitchen, you need to familiarize yourself with it technical characteristics. First of all, we are talking about his overall dimensions. The material from which it is made, its thickness and the mass of the hood also matter.

All necessary characteristics, incl. the effectiveness of air purification from aerosols is indicated in the passport.

Types of umbrellas

Based on the type of design, modular hoods are divided into island and wall hoods. Their air purification efficiency is approximately the same, but there are still some differences. For example, island structures have 2 rows of filters, which increases their productivity. They are attached to the ceiling and can be installed above equipment with large dimensions.

Wall hoods are mounted directly above cooking surfaces placed on the wall. They have 1 row of grease filters.

Both island and wall models can have different geometric shapes in cross section.

For equipment where open fire is used, grill umbrellas are produced that have complex shapes and are equipped with spark-extinguishing filters.

There is also an umbrella for the ventilation pipe, which has a mushroom shape and protects the pipe from precipitation.

Industrial

Exhaust and supply and exhaust ventilation hoods are widely used in industrial enterprises and catering outlets where they are installed a large number of thermal equipment(ovens, electric and gas stoves, combi ovens, deep fryers).

Among the industrial premises that need air purification are chemical and pharmacological laboratories. The task of industrial exhaust equipment is to effectively remove excess moisture, heat, harmful substances and odors and create an optimal microclimate in work areas.

Most often, industrial hoods are equipped with additional fans and lighting.

Household

Every self-respecting housewife prefers to have a hood in the kitchen, which purifies the air during cooking and minimizes room pollution (prevents droplets of oil, grease and soot from settling on walls, floors, dishes and other surfaces). A variety of exhaust hoods allows you to choose the appropriate model that will fit well into the interior of the room.

Types

To equip your food preparation area with a reliable hood, you need to have an idea of what types of hoods are on sale. Manufacturers offer 3 types of hoods: flat hanging, dome and built-in. They differ not only appearance, but also technical characteristics and price range.

Built-in

The built-in umbrella is installed in the cabinet above the hob. This option is suitable for those rooms where it is necessary to preserve overall design. Neither the umbrella itself nor the bulky ventilation tube will not be visible due to hanging kitchen cabinet. Built-in hoods can operate in recirculation and air exhaust mode.

Flat

This is the most a budget option. The device is a flat case equipped with a fan and a replaceable filter. It works only in recirculation mode and is indispensable in rooms where it is difficult to install the hood in ventilation ducts, or where they are completely absent.

The disadvantages of the flat type include: low power, high level noise and frequent filter changes (every 5-6 months).

Dome

Dome models are focused on 2 modes: air duct and recirculation. Their power is higher, which ensures their demand for large kitchens. The noise level they produce can be adjusted, and some hoods are equipped with remote control and a system for monitoring the level of filter contamination. Dome umbrellas are available in a variety of designs, colors and materials.

How to choose an umbrella

When choosing an umbrella, you should consider the size of the equipment over which it will be installed. There is a rule that the hood should overlap the hob by at least 10 cm.

The standard width of hoods is 50, 60, 70, 90 and 120 cm. Umbrellas of other sizes can be made to order.

The second point that you should pay attention to is the noise level of the exhaust equipment. The greater the power of the hood, the more noise it produces, and for humans a noise level of up to 40 dB is considered acceptable. Sound-absorbing devices, which manufacturers equip some models with, help cope with the problem.

Hoods are often equipped with lighting and act as a source of additional lighting for the kitchen.

If the hood will be installed high, it must remote control. The price of this equipment will be higher, but the ease of use compensates for the financial costs.

When choosing an umbrella for a chimney pipe, you should take into account the size of the pipe itself, because the head must overlap its edges. The umbrella itself can have any shape. It is also necessary to pay attention to equipping with additional structural elements(dropper, fixing parts and protective mesh).

DIY installation

Execute correct installation hoods are within the capabilities of a skilled owner. For DIY installation in back wall For a wall umbrella, you need to drill 2-3 identical holes, first tighten it with anchors through enlarged washers, and then install it on the wall as close as possible to the air outlet for ventilation on the roof. The main thing is that the surface of the wall is smooth and durable.

The rectangular umbrella is attached to the ceiling using collets and pins, for which 4 identical holes must be drilled along the edges of the umbrella in the upper horizontal plane. Please note that if the ceiling height is more than 4 m this technology won't be able to apply.

Cables and chains are used to install hinged exhaust hoods. In this case, the height of the ceiling does not matter. First, 4 brackets are welded to the upper plane of the hood. Then use a carabiner to secure the chain (or cable). Its other end is connected to the ceiling. All fastenings must be secure. The only “disadvantage” of such hanging, unfixed structures is the difficulty of tying them with air ducts.

Exhaust hoods are installed in many places, rooms and establishments associated, first of all, with certain household or culinary and food activities: in kitchens and kitchen shops, in restaurants, cafes, canteens, in the country, in the garden, etc.

An exhaust hood is an important engineering structure that can be very useful even in living conditions, at home or in the country, and in catering establishments it is not at all interchangeable. Let's take a closer look at what it is and why it is needed.

The main purpose

A ventilation umbrella or dome is a device main task which is the ventilation of the airspace of various rooms and territories. Located above sources of high temperature, humidity and various odors, such as stoves and cooking surfaces, exhaust domes remove hot air with various unfavorable impurities from the work area, thus refreshing the atmosphere of the room.

The range of tasks of this ventilation device includes purifying the air from many substances that cause harm and discomfort, including: steam, soot and soot, grease, dust, various odors and chemical reagents (acids, salts, alkalis).

Therefore, the scope of application of exhaust hoods is very wide. These structures are installed not only in kitchen areas, but also in chemical and Food Industry, in laboratories and other similar institutions where there is an increased risk of air pollution.

Exhaust dome device

The base of the exhaust hood is a metal vault with an opening connected by an air duct to the ventilation system. Full functioning is ensured special devices, such as:

Grease filter. Serves to clean air masses from particles of fats and oils.
Spark arresting mesh. It is necessary when working with sources of open fire.
Lamps. Additional lighting with lamps built into the dome body.
Pendants. Mounting elements that support and distribute the weight of the unit.
Turbines. They ensure the capture and advancement of air flow through filters to the air duct.

Exhaust hoods must be made from materials that have good corrosion resistance and comply with modern sanitary standards. This material is “food grade stainless steel” - a special grade of stainless steel produced specifically for food industry equipment and characterized by increased resistance to aggressive chemical environments.

Many stainless steel ventilation domes are designed using inverter technology to increase durability. argon arc welding. Thanks to this method, the quality of welds, the wear resistance of equipment and the service life of the unit as a whole are increased.

The design of the exhaust hood includes the presence air filter, which can have various functional additions: spark-extinguishing nets, grease traps, “labyrinth” filters, etc. The installed filters are also subject to sanitary and hygienic standards and requirements. In addition, they usually have a very attractive appearance, and the design allows them to be removed for cleaning or replacement.

Types of umbrellas

All modern ventilation units are developed not only taking into account functional, technical and sanitary requirements, but also for design and aesthetic reasons. Of course, turning such a serious unit as an exhaust dome into a decorative element is not easy, but this does not prevent it from fitting perfectly into almost any interior, especially in a production environment.

The appearance of the exhaust hood has some space for decorative design. For example, the outer steel coating can be polished or mirrored, but it can also be matte. Strict shapes, straight lines and shiny mirror surfaces not only look good in production workshops, but also perfectly complement the interior in the style of hi-tech or minimalism.

Exhaust hoods can be divided into two types: household (kitchen) and industrial (industrial). There is no fundamental difference between them, but there are some technical differences. For household modifications, for example a kitchen umbrella, in comparison with industrial ones, the following features are characteristic:

Smaller dimensions. Such units are designed for standard sizes ordinary kitchen stoves. The air turbine is much less powerful or absent altogether.
Simpler and more compact grease filters (paper) are used.

These differences are not always clearly expressed. For example, an island-type ventilation dome installed on spacious kitchen in a private house may not differ at all from an industrial one. At the same time, air umbrellas for street barbecues and barbecues, on the contrary, are extremely simplified devices, down to the primitive, representing a metal vault without any additional devices.

However, ventilation equipment located indoors must have a full set of functional elements: turbine, grease trap, spark arrester, etc. This also applies to such units as fume tables and cabinets, which are more related to the chemical industry than to the food industry. They are installed mainly in laboratories.

Design and installation features

According to the type of design, exhaust hoods can be wall-mounted or island-mounted. Wall-mounted models are mounted directly on the wall, directly above the work surface. Island ones have a more complex design, as they are attached to the ceiling and hang over the equipment located near the center of the room, away from the walls. The wall dome has one row of filters, and the island dome has two.

If the wall-mounted umbrella has significant weight and dimensions, additional pendants, brackets and chains are used to assist in fixing the device. To give the structure rigidity and stability, its shape is given a trapezoidal profile. This allows you to increase the maximum permissible area of the dome for hanging over large equipment.

Island-type ventilation units provide air circulation in a much larger volume than wall units. Therefore, they are great not only for forced ventilation air in the center, above objects distant from the walls, but also to ventilate the entire volume of the room as a whole.

The quality and stability of the ventilation dome operation depends not only on the choice of its type and modification, but also on the correct installation of the unit above work area. The exhaust structure must be suspended exactly above the location of active kitchen, industrial or laboratory equipment that pollutes the air: cookers, deep fryers, fryers, burners, containers with chemicals, etc. It is necessary to ensure that the centers of the umbrella and the active surface coincide.

It is important that the dimensions of the exhaust unit are slightly larger than the dimensions of the equipment underneath it.

For ordinary kitchen appliances, a couple of centimeters of difference is enough, but for larger installations, standards require increasing the dome size by 10 cm or more. The height of the structure’s suspension above the working surface should be from 70 to 110 cm.

Conclusion on the topic

Thus, we found out what it is, an exhaust hood, what its structure and purpose are, and we also figured out the types and modifications of dome structures and the intricacies of their installation. This data will help with the selection and purchase of equipment, its operation, maintenance and repair.

It should be noted that ventilation system hoods have absolutely no complex design. A rectangular chimney hood consists of a main body, a tray for collecting grease and filters that perform. Filters are always installed at an angle of exactly 45 degrees Celsius.

If we are talking about supply and exhaust hoods, then in this case it is necessary to use a grille or a device such as a diffuser.

In some cases, air duct umbrellas are equipped with additional elements, such as connection lugs, fans, lamps and many others.

1 Operating principle of the ventilation hood

This device works as follows. The air that is subject to the processing process, as a result of which it becomes hot, has a much lower density, and therefore rises to the top, and is replaced by cold air currents.

Then the air enters the pipe and passes through special grease filters, where it is saturated with a large amount of oil vapor, due to which it begins to cool over time.

Ultimately, passing through such a pipe due to strong temperature changes, the oil condenses, air flows begin to separate from it and through special channels allow the fat to flow into the bath.

In turn, the air, which is purified after such a process, enters the round or.

2 Device classification

Today, two types of rectangular umbrellas are used for chimneys:

Exhaust hoods . Their main purpose is the complete elimination of unnecessary gases, substances, and combustion products from the chimney. Highly heated air flows are drawn in by the umbrella, after which they are transported through a pipe where grease filters are located and are ultimately transported back to the air duct, through which they are removed from the building. All this can be easily done with your own hands.
Supply and exhaust hoods . Thanks to them, both the exhaust of polluted air and the supply of new air are ensured. clean air into the room. These umbrellas are best used in rooms where the flow of clean air is limited due to certain circumstances. It is always necessary to carry out calculations taking into account the fact that the volumes of supplied and extracted air flows will always differ from each other. Therefore, in no case should you count on the fact that exhaust hoods will contribute to the complete destruction of odors, gases and other substances. Although the chimney, of course, will work much more efficiently.

There is also a classification according to the type of construction. Thus, exhaust and supply and exhaust rectangular and round umbrellas are divided into island and wall.

2.1 DIY installation and calculation features

I would like to note that installing such umbrellas with your own hands is quite possible, since in fact there is nothing complicated in such work. Below are some of the most popular ways to install a chimney umbrella.

Method number 1. Installation of wall-mounted exhaust hoods using anchors. After a certain calculation, the length of the umbrella is selected and 2 or 3 equal holes are drilled in the back of the wall. Using enlarged models of washers, the exhaust hood is first attracted and then installed on the wall. It is very important that the wall is perfectly level.
Do-it-yourself installation of rectangular umbrellas through collets and studs to the ceiling. At the very beginning, you need to drill 4 identical holes for the studs. All these holes are drilled strictly along the edges of the umbrella, after which the device is attached directly to the ceiling. A modern chimney works perfectly if applied this option. The only negative is that calculating the ceiling height to the standard stud length does not allow the use of this technology if the room height is more than 4 meters.
Installation of chimney exhaust hoods using various cables and chains through anchors and brackets to the ceiling. In order to do everything yourself, you need to weld 4 brackets of the required parameters to the upper horizontal part of the umbrella, and then use a carabiner to securely fix the chain or cable. The second end of such a chain or cable must also be securely connected to the ceiling. Among the disadvantages of this method, one can note the unsteadiness of the structure, so tying it with air ducts is not at all easy, but for a chimney this scheme is excellent.

As you can see, installing it yourself is not at all difficult. The main thing is to adjust the umbrella as close as possible to the chimney pipe and take into account some nuances.

Application area

Supply and exhaust and exhaust hoods of ventilation systems are widely used today industrial enterprises and not only. Such systems are widely used in enterprises Catering, such as restaurants, canteens, bars, food factories, cafes and so on.

Umbrellas are also installed over all kinds of heating equipment devices, in particular this applies to deep fryers, gas stoves, ovens. If the calculations made allow the installation of such umbrellas, then they are used in various industrial premises - food, pharmacological, physical, chemical.