Stove heating is considered quite popular, but also the most dangerous among all types of space heating systems. The fact is that the principle of its operation is directly related to direct fire, and wood is usually used as fuel.

What is a spark arrestor

Especially dangerous are the stove or fireplace in wooden house because wood is a highly flammable material. Therefore, when forming these structures, it is important to strictly follow all the rules and fire safety requirements. They must be taken into account not only when creating the furnace itself, but also when choosing and installing a chimney. The fact is that in the pipe in the process combustion products are emitted, and this process may be accompanied by the appearance whole sheaves of sparks. They can lead to fire of the roof, the house itself or buildings located next to it. That is why, when forming furnace heating it is important to provide a spark arrester for the chimney in the design.

The spark arrester is a special design that mounted directly on the chimney, and acts as a nozzle. It is equipped with a metal mesh, and there is also a top. According to the functions that this element performs, it is similar to deflector, but its cost is considered more affordable. It is also possible to build this structure with your own hands, and it will not be difficult to do it qualitatively if you know all the sequential actions.

Varieties and principle of operation

This element can be presented in various designs. However, the following are the most common chimney spark arresters:

• roof element that closes metal mesh;
• an object with metal mesh walls, which is equipped with a deflector.

The second option is considered the highest quality and optimal, but its cost is more significant, and it is quite difficult to make it yourself.

The main elements of any spark arrester are:

• metal grid;
• spark-extinguishing cover;
• a cover that closes the element when the furnace and chimney pipe are not in use.

Read also: Installing a chimney through a wall

The chimney spark arrester has a fairly simple principle of operation, which is that when the gases resulting from the combustion of fuel pass through the chimney pipe, they meet with obstacle, presented in the form of a cover, therefore they are sent to a metal mesh, through which they are taken out into the street. metal provides extinguishing sparks that may arise in the course of work.

Chimney spark arresters are mandatory elements for the house that is used all year round, and at the same time as the main source of heating is stove heating. In this case, there will be strong traction in the structure, as well as regularly very high temperatures, which can lead to the formation of sparks.

The simplest

You can purchase this element in a ready-made form, after which it will be installed on the chimney pipe, or you can do the process of creating it yourself. In this case, some types of spark arresters should be distinguished, which are considered the simplest. These include:

• Most simple option a design is considered, which is represented by a muffled part of the pipe, in which round holes are made. They can be drilled or cut. It is important to choose a pipe that will be slightly larger than the chimney so that it can be easily put on it. It’s easy to make a design with your own hands, but complexity can arise in the process. calculation of the required number of holes, as well as determining the correct location of their location, since incorrect calculations can lead to a deterioration in the thrust of the furnace design. Also in the cylinder during operation soot occurs which causes an unpleasant odor from the oven.
• Another type is the use of a special metal mesh at the end of the chimney, which fastened with a clamp. However, it quickly overgrows, so it cannot be used all the time, in addition, the spark extinguishing efficiency is low for this equipment option;
• Installation at the end of the chimney dome mesh. This option is considered effective and most suitable of all the simplest types of elements.

Read also: Chimney for fireplace

If sparks often appear in the chimney, check his traction, which may be too strong, so you will need to reduce it a little for safer use of the oven.

Creation technology

It is not difficult to make high-quality and effective spark arresters for the chimney, but it is with their help that you can ensure the safe use of stove heating. In the process of work, it is necessary to pay as much attention as possible to competent calculations that will allow you to determine what should be grid cell sizes, and also how many of them should be in order to secure the building.

Cells that are too large can allow sparks to pass through, and cells that are too small can disrupt the draft in the chimney. It is also important to remember that metal meshes have the ability to clog with soot therefore, they need to be cleaned periodically, because otherwise it will be possible to observe trouble with reverse thrust.

To do quality construction with your own hands, you need to follow the following sequence of work:

• Outlet flue is carefully measured.
• A drawing of the future spark arrester is being created, which will show all its details and features.
• Formed layout of the future product from cardboard.
• A mesh and additional elements are cut from a suitable sheet of metal, from which the product will be assembled.
• To create the grid itself, apply rods of metal, whose thickness should be approximately equal to 3 mm., or you can purchase a ready-made grid for these purposes.
• All joints in the structure are connected using a welding machine.
• The element is cleaned with Bulgarian help.
• Additionally, all parts of the spark arrester are fixed steel rivets.
• The resulting high-quality and efficient, as well as suitable for all sizes, element is mounted on the chimney pipe and carefully fixed on it.

Additionally, you can make a deflector, for which a suitable one is cut out of metal visor sizes, which is bent at the desired angle, and all the resulting folds are fastened with rivets. The resulting visor is fixed to the base of a pre-made spark arrester, for which they are used steel riveting.

Individual heating in addition to the advantages has significant disadvantage– fire hazard. The risk of fire increases significantly when a high temperature is reached during the combustion process, and fire sparks with great strength fly out of the pipe.

It is with this problem that the spark arrester on the chimney will help to cope - the device prevents the spread of dangerous sparks. The device has a simple design, so it is quite possible to make and install it yourself.

We will show you how the spark arrester works, describe the features of different models, and give step-by-step instructions on how to manufacture and fasten the element. The information provided will help you do all the work yourself, saving money on the purchase. finished product and call the wizard.

A spark extinguisher placed on the chimney will be a real find, especially if the house or bathhouse is located next to the forest. After all, hot sparks in windy weather can easily overcome a 300-meter distance to a nearby pine tree.

And this is a direct threat of fire, from which you should insure yourself and your property by putting a protective device on the chimney.

Why you need a spark extinguisher

A spark-extinguishing device is necessary if materials have been used for the roof that can easily catch fire if a spark hits them. Of course, such decorative coating- is not the best choice. But, in practice, safety is often neglected in order to realize the original design idea.

A spark arrester is needed if a bathhouse, sauna or other structure is located on the site of the adjacent territory, where it is planned to heat up to a high temperature. The wood from which the walls of the bath are made can easily catch fire from an accidental spark.

It is good when a heat-resistant material is chosen for the roof, which is able to withstand repeated collisions with fiery sparks.

And of course, when the house is equipped private system heating and hot water supply. Here, the boiler will be heated to a high temperature to meet the needs for heat and hot water. You can't do without installing a spark arrestor.

When the boiler is heated, intense heat is generated, and sparks easily fly out into the street through a straight chimney, forming a breathtakingly terrible sight.

The structure and principle of operation of the spark arrester

The device for extinguishing sparks has a simple structure and a clear principle of operation. Depending on the model of the spark arrester, its structure and appearance.

But, in all variants, the presence of a metal element made of a mesh or a solid sheet will be common. Also, there is a base on which all other parts are attached and a cover that prevents the free flight of sparks.

Conclusions and useful video on the topic

As a spark arrester, you can use a deflector in which a protective plate is additionally installed - a skirt with raised edges surrounding the device. About this model in the video:

About the features of the spark arrester and its structure in the video clip:

Such a precaution will help protect the house from accidental fire. After all, the sparks flying out of the chimney will go out, overcoming the path through this metal device.

A chimney must be installed in any room that has a stove, fireplace or heating boiler that runs on liquid or solid fuel. Such a design of exhaust mechanisms is necessary so that all the smoke and the accompanying combustion products do not go into the room, which is life-threatening, but into the street.

The spark arrester for the chimney allows you to make the hood in the house as safe as possible in operation, protects the home from sparks entering it, it is this design that will fully comply with all fire safety standards and requirements.

It is necessary to buy a spark arrester for a chimney, regardless of whether your house is wooden or brick, and the structure itself is made of high-quality metal, which is presented in the form of a nozzle supplemented with a mesh with small cells and an umbrella that does not allow wind, debris and precipitation to get inside the chimney.

Basic components and preparation of tools

The spark arrester may have different dimensions, diameter, material of manufacture, color of execution, however, what remains unchanged is the principle of operation of such auxiliary protective equipment.

The simplest pipe spark arrester consists only of a standard fine-mesh mesh, the cost of such a design is quite low, however, the functionality is several times lower than that of a nozzle supplemented with an umbrella. The first version of the spark arrester with only a mesh can also be done quickly and easily with your own hands.

The deflector can have a certain shape, the choice of which depends not only on your individual wishes and preferences, but also on what diameter, section, shape and other features your hood has.

The chimney deflector consists of the following structural elements:

• Cases or the so-called glass, which is fixed on the chimney pipe;
• Mesh cylinder, which is an indispensable and main part of this device;
• Umbrella-deflector.

The spark arrester on the chimney for a bath has the following principle of operation: the smoke masses pass through a number of special channels with which the exhaust structure is equipped, after which the flows collide with an umbrella-shaped barrier, as a result of which the direction of the smoke flows changes. Now they pass through a metal mesh and if sparks begin to form, they simply break or are extinguished against this mesh and become microscopic.

It is especially necessary to buy a chimney deflector complete with a spark arrestor if your fireplace, stove or heating boiler has a very large and strong draft that can lead to the formation of many sparks.

Also, the advantages of a spark arrester include the fact that with its help garbage, precipitation will not get into the chimney pipe, the wind will not blow, birds will not penetrate, which will not allow them to settle down and build a nest there.

Of course, due to its simple design and structure, a spark arrester can not only be bought at a specialized store in Moscow or in the city of your residence, but also made using a number of materials, tools and auxiliary accessories with your own hands.

Now let's take a closer look at the classic example of assembling a spark arrester on a chimney with a circular cross section, in this case we need to acquire:

• A saw for metal or a grinder;
• Scissors for metal and a hammer;
• Welding or rivets;
• Clamps.

Assembly process and rules

First of all, before you assemble a spark arrester with your own hands, you need to choose the right and suitable mesh, the cells of which will have the correct dimensions. They should not be very small, ideally a mesh with cells 3-6 millimeters in size is suitable, through which all smoke masses can pass without difficulty and accumulations.

An important point in using both a purchased and a home-made spark arrester is that in the process of regular use of the fireplace and kindling it with solid fuel, combustion products such as soot and soot are formed in the process, which gradually clog the mesh cells. In order not to get back draft, smoke in the room, it is necessary to carry out periodic cleaning of the mesh at least once every 2 months with daily use of the heating unit.

If you decide to assemble and design a spark arrester with your own hands, at the first stage of such work it is important to prepare a sketch, with all the measurements and design features, its shape, height, width, depth, cross section, shape. Also, the presence of a drawing will allow you, with maximum accuracy, to correctly calculate the amount of materials needed.

If you do not have sufficient confidence that you will cope with the assembly the first time and you do not have the proper experience, you can first assemble a cardboard mock-up of real sizes with your own hands and only after that proceed with assembling the original spark arrester using cardboard blanks to measure the real ones.

To assemble the spark arrester, it is necessary to buy and prepare in advance suitable materials on a heat-resistant basis, which include stainless steel or galvanized steel, while the thickness of the sheets will be at least 0.5-1.1 millimeters, and the dimensions of the sheet depend on the individual dimensions of the structure. You will also need to buy and prepare a mesh with small cells made of galvanized or of stainless steel, ranging in size from 3 to 6 millimeters.

First of all, we take a grid and cut off an element of the required parameters from it, which will be presented as a rectangle, its side, which has the largest length, should be equal to the length of such a parameter as the circumference of a cylinder from the grid. One of the sidewalls is complemented by a special valve, which is securely fixed on it, while this element must have a width of 1.5-2 centimeters. Such an element is intended for the equipment of riveted joints, while the height of the cylindrical element will be about 100 millimeters, with 2-3 rivets.

Now we start forming a cylinder-shaped figure from a grid, in order for such an element to turn out to be perfectly proportional and even, it can be used as auxiliary equipment pipe with a suitable radius.

In order for the metal mesh to be more manageable and bendable, it is preliminarily tapped with a hammer, as a result of which it better forms the required shape and does not curve.

Now we start cutting out the “glass” that will become the basis for our mesh cylinder, it must have the appropriate shape and size so that the cylinder can easily fit into it.

Now we are starting to assemble the deflector umbrella, for this we will need to pre-assemble the frame or base, made in the form of a fungus or an umbrella, which will protect the chimney from precipitation, debris and will not allow sparks to form. To create it, we need to cut out a circle figure and also an angular segment from a steel sheet, if there is a layout, your task will be greatly simplified, otherwise you will need to do everything necessary calculations and markup.

Such an umbrella is supplemented with a special mounting valve, and in order for your cone to be perfectly even and symmetrical at the exit, you can roll it yourself, for this you will need a pre-prepared pipe with a small diameter, which will be fixed in a horizontal position.

Now we turn to the assembly of auxiliary racks, through which you can securely fix and assemble all the structural elements made earlier with your own hands together. They can be based on both metal rods and sheet steel at your discretion, and the width of each rack will be approximately 1.5-2 centimeters. To increase the service life and increase strength, such racks are made in 2-3 layers, which is taken into account at the moment when the workpiece is being developed.

The length of the racks will be individual for each specific case, but what you should not forget is that rivets will be placed on each side of the fasteners, the space for which must be left during the installation process. In order to strengthen the design of the spark arrester, the racks can be installed and fixed at a slight angle, inclination, in the direction from the glass to the umbrella.

On last step it is necessary to completely assemble the entire spark arrestor, the following instructions will help you with this:

1. The branch pipe and the "glass" are connected by means of racks that will have a vertical arrangement, at this stage it is necessary to prepare several rivets;
2. The cylindrical mesh element at this stage must be inserted between the two racks and at the same time it should ideally fit in the prepared "glass" and rest against the caps of each of the rivets;
3. The height of the cylinder from the grid is selected so that when entering the glass, it rests against the umbrella, now it is necessary to fix a metal grid to the vertically located racks, which will make the structure more reliable and durable. To secure each of the racks, 1-2 rivets are used;
4. We install the "umbrella", for this we bend the racks, or rather their mounting zones in such a way that they lie inside the cone-shaped section with sufficient density. Now we drill several holes through, install rivet elements in them and make the final fixation.

Now such a spark arrester can be attached to the chimney itself and be one hundred percent sure that dirt, debris, wind, snow, rain will not get into your pipe, and all sparks will decay in a timely manner.

As an alternative, you can replace the classic rivets with welding, in which case you will need to clean each joint with a grinder, and if the roof has a non-refractory coating, metal plates are fixed around the chimney, which will extinguish microscopic sparks that can penetrate through the mesh.

A spark arrester for a chimney is not only a reliable protection that will prevent the ingress of debris, wind and precipitation, but also, if desired, it is a decorative component that can be decorated with various forging elements, drawings, volumetric patterns and made in the same style with a weather vane, drain , chimney, fence.

In the video clip below, the specialist talks in detail about what features the deflector has and why you need a spark arrester for the chimney of the stove, fireplace and bath:

If you thoroughly comply with all norms and requirements, including those of a fire-fighting nature, then any spark that inadvertently flew out of the chimney is guaranteed to go out until it reaches the building next to the bathhouse. But there are two buts. Firstly, no one observes building codes in our country in principle, and secondly, the bath's own roof can be made of materials capable of igniting. In general, to be sure to avoid trouble, it is worth installing a spark arrester on the chimney. We read the article.

Any fuel combustion is associated with the release of thermal energy and combustion products, in which, in addition to volatile substances and gases, there may be small fuel particles entrained by the outgoing jet, and in which combustion processes of varying degrees of intensity continue. In principle, active sparking can be caused by several reasons:

1. Direct-flow type chimney with a short vertical arm. Naturally, the greater the length of the smoke channels, the more tortuous their path, the more likely it is that all the sparks will die out, somewhere else, in the first third of the smoke passage.
2. Too much thrust, which causes intense combustion and a high speed of the outgoing flow, which will provoke the separation of small particles of burning fuel and their removal into the atmosphere.
3. The use of fuel prone to increased sparking. Traditionally, this is considered to be well-dried firewood. conifers, especially ate. The provocation of sparking provides a high and massive stacking of firewood in the furnace furnace, in case of burnout bottom logs, the upper ones collapse with a characteristic ejection of a whole sheaf of sparks. Whoever remembers the big pioneer bonfires will not let you lie.

Important! It should be remembered that, in addition to the primary sparking described above, there is a secondary one, in which soot deposits in the smoke channel ignite. They pose no less of a fire hazard to the surrounding buildings. That is why, in fact, timely should be given close attention.

In principle, the fight against soot, the use of fuel that is not prone to sparking, fine adjustment of the draft of the furnace can suppress sparking in the bud. However, it is impossible to fix a straight-through short chimney, then the spark arrester on the bath pipe becomes an indispensable accessory.

Brief overview of the design

The spark arrester for the chimney can be made in the form of:

• Perforated damper at the chimney section. This type is the simplest, if not primitive, solution to the spark suppression problem. A spark arrester for a bath pipe with your own hands can be quickly made by simply drilling holes in a metal plate, which is then fixed to the cut of the pipe. The efficiency of spark extinguishing will be very high, since the area of ​​the holes will be much lower in relation to the area of ​​the entire plate. Accordingly, the draft and the quality of smoke removal as a whole will deteriorate. In the near future, the problem will become even more aggravated, since the flow area of ​​the holes will decrease due to the accumulation of soot directly on the plate, in the zone of flue gas outflow;
• Mesh cap, put on the pipe. In this variant of solving the problem, there are practically no obstacles to the free flow of smoke from the pipe, but the efficiency of such a design will be relatively low. At copious excretion a sheaf of sparks, there is an objective probability that some of them will break through the mesh barrier without hindrance;
• Spark arrester for a bath in the form of a deflector. This construction works as follows. A blind plate is put on the mouth of the pipe, the plane of which is in some way curved outward. She herself rises on high legs at a level of approximately 150 - 270 mm from the chimney cut. Absolutely nothing interferes with the flow of smoke, the sparks are extinguished due to the collision of the emitted sparks with a cold metal plate, as a result of which the spark instantly loses its temperature and changes its trajectory. Among other things, such a system protects the mouth of the pipe from the ingress of precipitation and foreign objects into it. At the same time, it should be noted that with strong crosswind gusts, sparks can be blown away before they come into contact with the deflector. It is obvious that at strong wind sparks quickly lose their temperature, but, nevertheless, the theoretical possibility of ignition exists;
• The most effective is the combined spark extinguishing system and only it can rightfully be called a system. It consists of a blind deflector plate and a mesh frame of the space below it. The opening diameter of the mesh should be about 3.5 - 4 mm. Ultimately valid value a value of 5 mm should be considered. The sparks emerging from the pipe are mostly extinguished by contact with the plate and sharply lose their dynamics, finally extinguishing occurs from contact with the mesh sidewall. It also prevents the phenomenon of sparking during gusts of side wind.

Attention! The material for the manufacture of a spark catcher system must meet several fundamental requirements: be non-combustible, have high resistance to adverse atmospheric phenomena, and have an attractive appearance. Almost all of these requirements are met by stainless steel.

Maintenance of spark detection systems

Like any, the simplest mechanism, a spark arrester needs routine maintenance, which are as follows:

1. Inspection for the integrity of the entire structure. At least once a year.
2. Cleaning of the main components and assemblies from soot and other deposits. Twice a year.
3. Unscheduled inspection and cleaning. For example, in areas with an abundance of common poplar, the fluff of this tree is able to clog the spark arrestor grid to the state of a dense fiber. In addition to worsening traction, such a nozzle is also a fire hazard. It is necessary to carry out such work as an objective need arises and there are no specific deadlines.

By the way! Maintenance and repair of spark arresters are classified as high-altitude, so their implementation must be ensured by strict observance of the rules and safety requirements.

Ferrous metal systems under conditions of different temperature loads and condensate formation are prone to increased corrosion, which predetermines closer service attention to them than in relation to systems made of stainless steel.

Independent production of such a product

Making a spark arrester for a bath with your own hands is not difficult. It is enough to know the basic rules for the ratio of the deflector diameter to the diameter of the chimney cut. For clarity, we present this data in the form of a table:

The following are suggested as "quick fixes" to the problem:

• Butt metal pipe it is closed with a blind cover, and vertical slots are made in the side walls in increments of 10 - 12 mm. Slot width 5 mm. It is convenient to arrange them with an angle grinder;
• As we said above, cover the mouth with a perforated plate;
• A cap made of fine mesh is put on the pipe, on which, for rigidity, rings made of steel strip are worn;
• The smoke exhaust system is equipped with a damper and a knee to reduce the speed and intensity of flue gas outflow. True, this option cannot be called fast, since it requires a direct reorganization of the smoke exhaust system.

It is possible to build a complete combined system of roofing galvanized sheet or stainless steel, 0.8 mm thick.

A word from Experienced! However, it should be remembered that for cutting galvanizing, like any other material that has protective covering do not use abrasive tools. Only special cutting shears working on the principle of "matrix - punch". Otherwise, the cut points will begin to corrode intensively. In addition, galvanized and other coatings have little resistance to thermal effects.

Stainless steel is characterized by high strength and toughness, which requires the use of special methods and techniques for its machining.

As a rule, the elements of such products are fastened with rivets, the use of welding is possible only of a semi-automatic type using a shielding gas environment. In some cases, hard soldering is used. Both welding and soldering require equipment and solid practical skills.

Conclusion

A spark arrester for a bath, in a number of cases, is necessary element equipping the furnace system of a home bath or sauna. According to a number of requirements of SNiP, namely, when using a roof made of bituminous material, as well as if the stove uses coal or coal briquette, equipping the pipe with it is a must. In most cases, we consider it useful to equip our bath with this simple device, then we can guarantee to remove many of the risks of using a sauna stove, in any weather and climatic conditions. All the same, it is worth playing it safe, because Moscow burned down many times, and we are talking about some kind of baths.

Reading time: 24 minutes

The stove in the steam room is one of the main elements. Works, as a rule, on fuel from solid materials. During construction, it is very important to ensure correct installation, both the furnace and the entire chimney system. If installed incorrectly, there is a risk of sending carbon monoxide, fire.

To avoid deadly situations, you must first choose the right spark arrester for the chimney for the bath and install it on the pipe in accordance with fire safety requirements.

With some knowledge, you can do the installation yourself. The erroneous opinion that the spark arrester is not important and you can do without it. We must always remember that fire does not forgive mistakes. It is imperative to install a spark arrester with a wooden roof, annual accumulation of dry leaves and poplar fluff on the roof.

Spark arrester value

Often for kindling sauna stoves use solid fuel. Sometimes there is a difference in the quality of the material, which leads to sparking. A spark is an incandescent particle that did not burn out during kindling. With a stream of hot gases, it goes up the chimney and flies out. Such a phenomenon can lead to unpleasant consequences.

Sparks very often land on the roof or wooden elements buildings. The wind can blow them several meters around, which leads to the appearance of fires. Dry foliage, needles, grass, hay, surrounding structures, trees - all this can ignite from a single spark. To extinguish an incandescent particle, it is necessary to ensure its contact with elements and surfaces with a high level of thermal conductivity. So a hot spark will lose its thermal potential even during its movement through the chimney. In other words, it will simply fade.

To achieve premature weakening of the spark thermal potential, a spark arrester is installed on top of the pipe. This element allows you to catch sparks when they go outside. A properly made and installed flame arrester reduces the risk of a fire in the bathhouse (sauna) and surrounding buildings.

Installing spark arresters has a number of advantages:

1. Provides fire protection when combustible materials are located nearby.
2. Prevents sparks from reaching the roof, especially if it is made of flammable materials, it accumulates a large number of leaves.
3. It closes the chimney from precipitation, leaves, birds, which often like to build nests in it.
4. Helps to reduce resistance, which eliminates reverse draft and increases the chimney traction force.

How does a chimney spark arrester work?

The spark arrester has a simple but effective design. It is a nozzle for the chimney, which has a mesh on the sides, a cone on top, providing reliable protection against foreign objects. The spark arrestor is installed on chimney any type. The principle of operation of this device is quite simple:

1. During the combustion of the furnace, the solid fuel material burns out. The result is smoke and gas. It is known from physics lessons that air masses rush up the free path. In the case of a bath, the formed substances pass through the chimney channel, trying to go outside. At the same time, unburned combustion products can be in the smoke tubers, which, like sparks, lead to a fire.
2. In the presence of a spark arrester, smoke with incandescent particles "rests" against the first and main barrier in the form of a protective cone.
3. Spark direct passage to the air is closed. They head to the sides, where another obstacle in the form of a grid awaits them. Hot particles under pressure seep through the cells, losing the accumulated thermal potential.

The whole principle of operation of a conventional spark arrester is three simple actions that protect owners from a fire. You can make such a device with your own hands without spending a lot of money.

Main Models

The elements of the chimney that ensure the elimination of hot incandescent particles are different. At home, as a rule, two types of spark arresters are used:

1. The corrosion-proof casing representing a grid design. You can do it with the help of improvised means.
2. Deflector. In addition to extinguishing solid incandescent particles, it improves traction by redirecting the wind flow. Protects the furnace device and the bath from a dangerous phenomenon - reverse thrust as a result of strong winds.

The damper in the form of a casing is the most popular, since its design is quite simple. Holes are made in the pipe or a special nozzle in the form of a grid is attached to it. The disadvantage of this design is the frequent revision of the spark arrester. Mesh with perforation quickly become clogged, as combustion products settle on their surface. The higher the degree of pollution, the less draft in the pipe. The spark arrester, made in the form of a casing, is subject to frequent cleaning. On sale there are assembled casings for extinguishing sparks. Their advantage is a simple connection to the chimney.

More modern devices are spark arresters - deflectors. Outwardly, they look more aesthetically pleasing. During the operation of the deflectors, the draft in the chimney does not decrease. Such absorbers are equipped with mesh and perforation. Their distinguishing feature- the presence of narrowing points that allow you to increase the thrust inside the spark arrester element. Depending on the location of the narrow sector, there are various models of absorbers, many of which are very similar in appearance to the casing, but are more aerodynamic. The disadvantage is the rapid contamination, the need for frequent cleaning, especially when using resinous logs as fuel.

Distinguishing properties

When installing a spark extinguisher on the chimney of a bath, you need to know what main features this device has:

All of the listed distinctive properties of spark arresters characterize this device as one of the main elements responsible for fire safety.

The process of making a device with your own hands

You can make a simple spark arrester with your own hands. Before starting to create a fixture for a chimney, you need to prepare everything necessary tools and materials:

The sequence of operations is as follows:

1. Measure the flue opening.
2. Make a preliminary sketch of the future spark arrester, taking into account all the components.
3. Cut out mock-ups of the parts that make up the fixture from cardboard.
4. Attach cardboard templates to a sheet of metal and carefully cut out analogues. In this case, dimensional accuracy must be observed.
5. The mesh can be made from metal bars with a thickness of one to six millimeters. It is possible to use the finished product.
6. Connect all existing joints by welding. Clean them with a grinder.
7. Fix all parts with strong rivets. The best option- of steel.
8. Install the spark arrester on the chimney. Secure it carefully so that it does not blow away with a strong gust of wind.
9. If desired, a deflector can be attached to the spark arrester.
10. Using special scissors, cut a visor from a metal sheet, which is subsequently bent at the desired angle. fasten all folds with rivets.
11. Fasten the manufactured cone and the base of the fixture together. For fixing, it is advisable to use steel rivets.

Creating a deflector type spark arrestor

Compared to grid models, spark arresters are more efficient. The Tsagi deflector with an apron, which captures hot incandescent particles, is very popular. To create it you need:

Additional options on how to protect the bath from hot particles

In addition to installing a spark arrester, there are several other options for protecting the bath:

1. The simplest and most common way is to weld the chimney tightly. A large number of holes are drilled in the upper part for the exit of smoke and gas. This method is also suitable for a pipe installed on an existing one.
2. The second option to protect the building and surrounding buildings from fire as a result of a spark falling is to weld a metal mesh on the end of the chimney pipe. The disadvantage of this design is the rapid contamination, leading to a weakening of traction. Frequent replacement with a new grid will be required.
3. To prevent backdraft from winds great strength a deflector is installed on the chimney pipe.
4. When building a chimney, the structure is often made with bends. The incandescent particles that have flown out of the furnace are extinguished on the way, not reaching the top of the pipe. In addition to extinguishing hot particles, a chimney with knees provides additional heat to the steam room.

All of the above methods have the simplest design, so you can create them yourself, with the help of improvised means, without spending a lot of money. All of them are effective and fully protect the bath roof, surrounding buildings from dangerous fires as a result of the ingress of a hot particle. You can install a spark arrester of any kind for a short time, but the effect will be significant.

Video review

You can learn more about what a spark arrester is, why it is needed and which one is best to choose from the video: