The height of the raised fireplace from the floor. Calculator for calculating the section of the chimney of the fireplace

Not every person knows that all types of fireplaces, represented by a huge number of models, according to some technical parameters have well-defined, established standard indicators. These parameters include the dimensions of the main nodal elements. When erecting a fireplace, these values ​​must be adhered to, as deviations can lead to a violation of the device's functions. Any fireplace should cope with the same tasks:

• to remove the heat received as a result of fuel combustion;
• ensure the removal of combustion products;
• supply oxygen to the furnace.

Wall fireplace drawing

The history of fireplace construction is rich in experimental discoveries, which accumulated in the form of experience that was passed from the master to his student. Today, many professional stove makers do not even think about why the chosen standard project has precisely fixed dimensions. His knowledge comes down to memorizing indicators for different types ovens. Meanwhile, there are quite good reasons for standardization. Let's take a closer look at the dimensions of the fireplace, its main characteristics, which are an indicator of its proper operation.

Conditions for normal traction

Everyone has heard of such a term as traction. Even without knowing the definition, one can intuitively imagine what it is. There are opinions that this is a pressure difference or a temperature difference between the upper and lower points of the chimney.

However, such a representation is not entirely correct, because with a small pressure difference, thrust can be increased due to other factors. Therefore, draft should be understood as the speed of movement of air masses through the section of the chimney. It can be enlarged, reduced or normal. The average speed should be equal to 0.25 m/s.

It is impossible to measure the speed of movement of combustion products at home. Before lighting the fireplace, it is recommended to make sure that draft is present. To do this, one should observe the behavior of the flame of a burning piece of paper, and it is already possible to estimate the magnitude of this thrust by the behavior of .

Bricklaying scheme

In order not to rely on chance, all factors that affect the amount of thrust are carefully studied. Among them are dynamic (atmospheric pressure, precipitation, wind, damage to the chimney) and statistical, depending on what dimensions of the fireplace were chosen during construction, what is its width, height.

Basic fixed dimensions

Size standardization does not mean that all fireplaces have to be cloned from one. The fact is that among all the dimensions they determine those that affect its functionality. It is these dimensions that must be observed. Among them are the linear dimensions of the firebox, the area of ​​the smoke channel, the distance from the floor to the lower edge of the fireplace window, the position of the smoke tooth relative to the hearth of the fireplace, the width of the channel in the area of ​​\u200b\u200bthe tooth overlap.

The remaining dimensions do not affect the work and play a decisive role in the difference between the models from each other. For example, the dimensions of the portal are selected depending on the size of the furnace hole and on the space allotted for the fireplace.

Fixing dimensions does not mean setting them to an absolute value. The listed dimensions are depending on the volume of the room that will have to be heated. But a mathematical relationship has been established between them, which cannot be violated. When creating a project, you can use one of the many ready-made tables, which contains all the values ​​\u200b\u200bnecessary for these conditions. Such a table is an everyday tool for any master.

Dimensions of fireplace elements

Despite the fact that such tables can be found in any source, every master, even a beginner, should have an idea of ​​\u200b\u200bhow this data is generated.

Calculation of parameters

The starting point for calculating the structure can be the volume of the room or its area. To determine the area of ​​the fireplace window, which is the front of the firebox, you need to divide the area of ​​\u200b\u200bthe room by 50. All the necessary measurements for the house can really be carried out without special devices. Knowing the area of ​​\u200b\u200bthe furnace hole, you will have to solve a small math problem. The ratio of the width and height of the window is expressed as a fraction of 2/3. Based on these conditions, the first specific dimensions are determined.

Theoretically, the gas flow rate should not depend on the depth of the furnace. But practice shows absolutely opposite results.

• Excessive depth leads to increased speed. Such an outcome is considered unfavorable, since the heat will not have time to be transferred to the room and, together with warm air leave the room through the chimney.
• The shallow depth of the firebox is a direct cause of poor traction. The room will gradually begin to fill with combustion products.

The standard depth is tied to the height of the window. It is 2/3 of the value of the latter. The selected proportions have been tested over the years and are the truth, to which there is no need to adjust the theory.

Finished cast iron

A complete calculation of the fireplace involves the calculation of parameters for the chimney. But here the main indicators depend on the shape of the smoke channel. In cross section, the channel may be a circle, square or rectangle.

Convection currents rise through the chimney along a complex trajectory that looks like a spiral. As a result, air masses practically do not encounter obstacles in the channel of circular cross section. In the remaining two types of channels, microflows are formed at the corners, which, by their swirl, prevent the movement of smoke. In such chimneys, it is advisable to talk about an effective channel, with an area much smaller than the area of ​​the smoke hole.

This theory is proof of the fact that with the same height of the chimney, the amount of draft depends on the shape of the channel section. The average parameters of the chimney can be set and adhered to during construction. The length of the pipe will be affected by the place of its exit through the roof. It is important not to respect the proportions, but the distance from the pipe to the ridge. If it varies within 1.5 m, then the pipe is erected 0.5 m above the top point of the roof.

Table based on chimney dimensions

The next range of distances, limited to three meters, corresponds to the equality of the levels of the pipe and the ridge. If the distance from the pipe to the ridge exceeds 3 m, it is necessary to apply geometric constructions. Mentally, you should draw a horizontal line through the highest point of the roof. From it, count an angle of 10 ° degrees and draw a beam. Our pipe should end at the intersection of the beam and the axis of the smoke channel.

We should not forget about the area of ​​the channel. It should be 10 times smaller than the area of ​​the fireplace window. If you make a channel with a larger area, then this will not lead to an increase in thrust, as it might seem at first glance. Too large an area contributes to the breakthrough of cold air flows from the atmosphere into the room. This phenomenon is called.

What has not yet been learned

All dimensions that were listed above are in a certain dependence on each other. For the starting point of the calculation, we proposed to take the area of ​​the room, which is a completely reasonable decision. However, in some cases the problem has to be solved from the end. For example, if the house has a chimney that meets the requirements for fireplaces in terms of its functions. Then all calculations will have to start from the area of ​​the channel.

There are certain indicators that are not related to mathematical dependence, but are decisive for the normal operation of the fireplace.

• The height of the fireplace window from the floor can be about 0.3-0.4 m (depending on the presence of a niche for storing firewood).
• The podium for the portal protrudes from its borders in front by 0.5 m, and on the sides by 0.3 m.
• The smoke tooth angle is 20° degrees.
• The side walls of the furnace taper towards the chimney, forming an angle with the normal from 45° to 60°.

Now you know all about formation geometric dimensions fireplace. Is it more convenient to use this knowledge or ready-made tables to understand what should be the width of the fireplace, its height? Each master gives a personal answer to this question.

A classic fireplace in the interior of a private house looks beautiful and stylish. It creates an atmosphere of calm and comfort, warms the home. It is quite possible to build such a hearth on your own, having understood the rules for its calculation and construction.

Fireplace - effective heating or a prestigious element of the interior?

A fireplace is understood to be an inherently elementary stove with a firebox. open type. Such an installation, when burning wood or coal, releases thermal radiant energy, thereby warming the room. The main nodes of the focus of interest to us are the firebox and the chimney. Also, a classic fireplace has:

• ash pan;
• smoke collector;
• protective doors;
• grate;
• convection system;
• gate valve;
• flame cutter.

A special gas threshold is installed inside the fireplace. It has a curved configuration that eliminates the possibility of air turbulence and prevents sparks from burning fuel from falling into the room. The threshold also prevents rainwater and snow from entering the oven and promotes rapid soot deposition. Mandatory is the inner lining of the fireplace - a special facing layer that performs a protective function. Outside, the classic hearth is framed by a portal. The latter is decorated with various finishing materials.

Note that the fireplace emits heat into the heated room unevenly. From the sides, the hearth heats up very weakly. The main return of thermal energy is observed opposite the fuel chamber of the device. For this reason, when building such furnaces with your own hands, the firebox must be designed not deep, but wide. Then the heat reflection opposite it will be maximum (up to 15–20%). In general, about 80-90% of the thermal energy released during the combustion of firewood goes into the pipe. This means that apply classic fireplaces as the main heating system in private homes is irrational.

Varieties of open hearths - we select a structure by type and style

Fireplaces at the installation site are divided into several different types. From this point of view, they can be:

1. 1. corner;
2. 2. wall-mounted;
3. 3. separate;
4. 4. built-in.

Self-taught masters in most cases opt for wall-mounted heating structures. They are allowed to be installed in a house that has been in operation for a long time, as well as in new residential buildings. Such fireplaces are located near the main walls. The following should be taken into account here. Firstly, the place for mounting the hearth should not be near the stairs, in drafts. Secondly, next to the fireplace must be left free space to service the device.

Corner hearths are installed at internal walls(in the corner). Such structures are much more difficult to build. You have to do complex calculations. Also make sure it is in perfect condition. bearing walls new surfaces and the foundation of the house. Free-standing stoves are placed not near the walls, but in any suitable place in the room. It is clear that the latter must have enough large area. In small rooms, a separate hearth cannot be mounted. But the built-in hearths are integrated directly into the walls or into the columns. The built-in structure is installed strictly at the stage of building a house.

By style, fireplaces are divided into English, Dutch, Alpine, rustic and modern. The principle of their operation remains approximately the same, the differences between them are mainly due to the features of the decorative finish. Experts advise building English (they are also classic) hearths. They fit perfectly into almost any interior.

We calculate the dimensions of the furnace ourselves - school mathematics

To build an efficient fireplace in operation, you need to decide on all its parameters. The calculation of the hearth, believe me, is not such a difficult matter. First, we determine the dimensions of the furnace portal (hole) of our design. Everything is simple here. The ratio of the area of ​​\u200b\u200bthe room where it is planned to install the stove to the furnace should be kept at 50 to 1. Let's explain with an example. If the fireplace will be placed in a room with an area of ​​​​20 squares, we need to divide 20 by 50. The resulting value (0.4 sq. M.) Is the optimal size of the firebox.

Next, we need to find out the height and width of the furnace hole. The ratio of these values ​​is maintained at the level of 2:3. For our example, the recommended height will be 51 cm, and the width will be 77. If we multiply these dimensions together, we get 3972 square meters. see - approximately 0.4 sq. m. So, everything is calculated correctly.

The side walls of the firebox should have an angle of 45–60°, the back wall - 20–22°. The inclination of the latter is carried out starting from 1/3 of the furnace height.

It remains to determine the depth of the furnace hole. This value is really important. The quality of the fireplace draft depends on it. Incorrect calculation of the depth will cause smoke in the room when burning fuel and poor heating of the house. It makes no sense to operate such a fireplace. The depth of the portal should be equal to 2/3 of its height. The latter, according to our calculations, is 51 cm. By simple calculations - (51/3) * 2 we get the number 34. This is the depth we need in centimeters.

Now let's deal with the chimney. The area of ​​its section is taken 8–15 times less than the area of ​​the furnace portal. Task for schoolchildren. We divide 4000 (firebox area) by a number from 8 to 15, we get the required value. The height of the chimney should be within 5–10 m. A shorter chimney will not be able to efficiently remove combustion products. And pipes with a height of more than 10 m can make the draft of the fireplace too strong, which is fraught with rapid combustion of firewood and even fires.

Below is a table showing optimal dimensions all elements of the hearth, depending on the area of ​​​​a particular room. If you are not strong in mathematics, use the data from it. Based on them, you can easily make a drawing of a fireplace and build it yourself.

We add that the sheet on the pre-furnace platform should extend beyond its limits by 0.25–0.3 m. And the protrusions on the sides of the fireplace and the podium in front of it are maintained at a level of 0.2–0.3 and 0.5 m, respectively.

Getting ready for construction - different materials are needed, different materials are important

Fireplaces of the classical type are built of brick. And it is necessary to use only red products. silicate and hollow bricks not suitable for building a home. For work, we select building products with even bases and right angles, uniform in structure, without any tangible flaws.

The quality of red brick is easy to check. It is enough to knock on its surface with your hand. If the sound is muffled, the brick is of poor quality. Go to another seller. When tapped, the brick should make only a clear sound, and nothing else. Also inspect all the proposed building products. Do not buy bricks with whitish spots and darkening.

For the construction of the hearth, it is also necessary to stock up on rubble stone, sand, cement, crushed stone, clay, reinforcing bars. Without these materials, we will not complete the laying of the furnace. It also makes sense to prepare a tool in advance for conducting construction works. We will need a square, a plumb line, a hacksaw, a shovel, a level, a bucket, a container for stirring the solution, a hammer, a tape measure, a pencil, a brush (bast) for seams, a sieve.

• We use only high-quality Portland cement for masonry;
• carefully sift the sand (the optimal fraction is 0.5–1.5 mm);
• buy (if possible) Cambrian blue clay(if not available, you can use another refractory material);
• we use reinforcing bars about 70 cm long, with a cross section of 0.8–1 cm;
• the lining of the fireplace from the inside is carried out with fireclay bricks.

You will have to determine the amount of required building materials yourself. It depends on what size fireplace is being built, what type of ordering is used during masonry. There are many options here. Below are the order options. Choose to your taste.

We choose the order, transfer the previously calculated sizes of the focus to it, we get (quite accurately) right amount bricks.

We equip the foundation - you can’t do without a reliable foundation!

As more or less experienced home craftsmen know, any stationary structure weighing more than 0.7 tons must be installed on a base. The weight of the fireplace will be large enough (bricks are not the lightest construction material), so we can not do without pouring the foundation. If the hearth is installed in one-story house, the base for the heating structure is deepened by 0.5–0.6 m. For more massive private buildings (two levels or more), we take a depth of at least 0.9–1 m. We make the foundation of the fireplace independent of the foundation of the house. The scheme of work execution is given below:

1. 1. We dig a ditch. We take its parameters at 0.1–0.15 m more sizes planned foundation.
2. 2. We fill the bottom of the dug hole with broken brick or rubble, tamp it down.
3. 3. Check the horizontal level of the resulting layer.
4. 4. We make a simple formwork from the boards. We should get a box without a bottom. From the inside, it is desirable to upholster the formwork structure with roofing material or treat it with hot resin.
5. 5. We mount the formwork on crushed stone, reinforce it, fill it with concrete mix (3 parts of sand plus 1 M400 cement).
6. 6. We level the concrete on the surface, cover it with a polyethylene film, wait 7–8 days.

While the concrete is gaining strength, we calibrate the bricks. This operation involves the selection of products for a specific type of ordering and their simple preparation. Each brick must be dipped in a container of plain water and held for a couple of minutes. This procedure allows you to remove all unnecessary air bubbles from the building material. In addition, wetted products will not take moisture from the mortar during laying. 3 days before the foundation hardens, fill the clay with water. Every day, add a little liquid and mix thoroughly. On the 3rd day, we will get a solution of the density required for laying bricks.

We make masonry - we will feel like real stove-makers

We dismantle the formwork, cover the frozen foundation with two layers of roofing material and proceed to laying. Place the bricks of the first row on wooden slats. Then lightly press the latter. At the same time, we nail the bricks onto the mortar. When performing this operation, we make sure that the clay does not squeeze out the rail. It is not necessary to apply mortar to the side of the brick in contact with the wooden guide.

The first two or three rows of masonry are mounted edgewise on the clay mixture. And here it is important to check the correct installation of bricks. The resulting rows must be strictly horizontal, and the corners must be vertical. It is most convenient to check with a square. Bricks are set clearly one above the other. We lay out continuous rows with a trowel or trowel. After mounting two lines of bricks, we take out the slats from the wood. And after the third row, we install metal pins (two) for the grate. We check each masonry line with the order.

We mount the firebox and smoke collector by hand. So we can feel and immediately remove foreign inclusions from the solution, for example, small pebbles. From the walls of the smoke collector and the fuel compartment, be sure to remove the remains of the clay composition and wipe the indicated surfaces dry. You can't plaster them! The curved section of the arch of the hearth and the smoke box is installed with bricks (gradual) up to 50–60 mm. We cover the opening of the firebox with lintels (wedge-shaped, vaulted or arched - it all depends on the type of order) made of brick.

In the process of laying Special attention give the chimney. It must be strictly vertical. Part of the pipe on the roof is laid out using a mixture of cement and sand (we do not add clay to the solution!). And the roofing carpet itself must be covered with a special overlap (in the language of the pros - an otter). This element provides fire protection for the ceiling.

The last stage of masonry is the arrangement of the smoke chamber. It is mounted directly above the firebox. Between the firebox and the indicated chamber, it is recommended to make a special pass - a kind of cornice. It does not allow smoke to enter the room when kindling firewood, and also eliminates the risk of sparks and soot flying out.

Finishing the fireplace - aesthetics first

The easiest way to finish the hearth is plastering. The operation is performed like this:

1. 1. We clear the cracks of the masonry.
2. 2. We impose a metal mesh on inclined and large bases, fix it (nail it).
3. 3. The first layer of the composition for plastering (it must have a sufficiently liquid consistency) is applied with a thickness of up to 5 mm. We are waiting for it to dry.
4. 4. We process the surfaces again, using a thicker solution. If necessary, a third layer can be applied. But remember that the total thickness of the finish in this case should be no more than 1.5 cm.

A fireplace plastered according to the described method can be painted. For these purposes, chalk compositions are used. If you add a little ordinary blue to them, the hearth will literally sparkle with whiteness.

Many home craftsmen sheathe themselves drywall sheets. They are placed on a pre-built frame. The drywall construction gives the hearth flawlessly even shapes. decorative cladding the fireplace can be made with slate tiles, ceramics (fire-resistant), natural stone, decorative bricks. Forged details and decorations give a special chic to the hearth. But they are not cheap.

The optimal width, depth of the furnace and the height of the heating structure itself allow you to organize the high performance of the device. If you don't follow everything necessary requirements, to achieve the desired result simply will not work.

fuel hole shape

The dimensions of the fuel chamber directly depend on the area of ​​the heated room. In order to find out its dimensions, the area of ​​\u200b\u200bthe room in which the fireplace is installed is divided by fifty. The height and width of the fuel hole depends on what the figure turns out to be. The chamber for firewood should not be too narrow and low. Experts recommend taking a proportion of two to three as a sample, while the width should be larger.

Full heating at low fuel costs is possible only with right choice the size of the fireplace insert and especially its depth. With a small depth of the chamber, smoke may occur in the dwelling. Thus, its depth should be two-thirds of the height of the entire hearth.

In order to make it clearer, we give an example of calculating the parameters for a dwelling at twenty-eight square meters:

• 28/50=0.56 sq.m. – a fireplace insert of this size must be installed indoors.
• indicators of the fireplace are 61x92 cm.
• we calculate the depth of the fuel chamber (610 2) / 3 = 406.7 mm. We round up to a whole number and get a depth indicator of 40 cm.

Features of the calculation of the chimney

To prevent the formation of condensate in the chimney system (dangerous for laying black liquid with bad smell), you need to install good chimney, the outlet of which is one eighth - one fifteenth.

The chimney channel in this case is 20 by 26 centimeters, its area is 52 square centimeters, that is, 1/10 of the total area of ​​the chamber itself.

Among other things, you need to consider the length of the chimney channel. It should not be very high, that is, more than ten meters. Excessive height will reduce the performance of the heating structure. If you make the chimney too low, it will not be able to fully remove the volatile combustion products into the atmosphere, and this is smoke that is dangerous to human health. The most suitable height is four to five meters. If you have the opportunity, use a device supplemented with special knees and bends. A device used to remove carbon monoxide is usually installed at a distance of twenty-five centimeters from the main ceiling beams, as well as load-bearing walls and partitions.

Foundation calculation

For the depth of laying the foundation, there is also an optimal figure - fifty centimeters. If you are installing a fireplace outside the city, in a temporary dwelling where you are not going to come so often, the depth of the base should be increased to twenty centimeters from the level of soil freezing.

The foundation of the fireplace should not be connected to the foundation of the house, as they have different shrinkage and can destroy each other. Usually the distance between these two foundations is ten centimeters. The base should protrude beyond the hearth by five to ten centimeters on all sides.

Height adjustment

The height adjustment of the hearth is carried out with the help of special bolts fixed on the legs of the heating device. In some cases, supports are used. The required distance can be achieved by specially laid out several rows of bricks from the floor to the desired height.

The placement of the fuel chamber in height has the following requirements:

1. the distance to the floor should be thirty - forty centimeters,
2. in some models, a firewood is located at the bottom, then the distance is increased,
3. when calculating the position of the bottom of the furnace, it is necessary to take into account the individual characteristics of the floor, the way it is arranged. Moreover, you need to think about this in advance, even at the planning stage of the fireplace.

Extra options

In order to organize safe operation heating systems outside the city, the following additional parameters should be considered:

• - side panels should be located at a half angle of forty-five to sixty degrees,
• - the back wall of the fuel chamber should also have an angle of inclination (for more complete heat transfer) of about twenty degrees,
• - the rear panel begins to tilt from about one third of the wall,
• - for greater safety, a special pre-furnace sheet is used, which should extend beyond the boundaries of the fireplace platform by twenty to thirty centimeters,
• - the protrusion of the base is brought out fifty centimeters in front of the portal, thus, it turns out to hide the shortcomings of the fuel chamber,
• - on the sides of the portal organize a special protrusion of twenty-five - thirty centimeters

Calculations of the corner model of the fireplace

For sizing corner fireplace at the very beginning it is necessary to calculate its area. After that, the figure is divided by one hundred, thus, the desired value for the focus is obtained. We get 28 sq.cm.

The fuel chamber of the hearth is built in the shape of a triangle, as an option, a trapezoid. This configuration is considered the most convenient and productive.

Let us dwell on the design in which the bottom has the shape of a triangle. Thus, we calculate according to the following formula: B \u003d (√S) 2

In this case, the height indicator of the corner structure should be slightly larger than the width. The depth of the furnace is the value obtained by dividing the width of the chamber by 1.4.

Our combustion chamber width will be one meter, and the height can vary within one meter - one meter twenty centimeters. The depth will reach seventy centimeters on both sides.

Dimensions for decorative model

decorative fireplace It is used only for home decoration, so it can be installed anywhere in the house. If we consider the visual effect and the organic combination of the design with other interior items, then the area of ​​\u200b\u200bthe hearth should not be more than 1/25 of the entire area of ​​​​the room.

The specifics of choosing a metal fireplace

Metal fireplaces are especially relevant among residents country houses. During the selection necessary equipment you should carefully read the passport, the recommended power of the device should be written there. Thus, the parameters of the focus should be correlated with these indicators. The choice of power depends on what area the fireplace will heat subsequently. The area indicator is multiplied by the height of the ceilings, and the resulting figure is divided by twenty. This will be the minimum power of the device.

Of course, the choice of a fireplace for your home is up to you, but after reading our article, take into account all the prescribed recommendations and draw conclusions that will help you purchase a heater.

Video: How to choose the optimal dimensions of the fireplace?

24.08.2017
3873
Pechnik (Moscow)

Not many people know how important it is, when choosing both a ready-made purchased model, and when preparing an assembly diagram, to indicate and pay attention to the dimensions and design parameters.

It is from this aspect that the efficiency of the device, its position and viewing angle in the interior directly depend. Due to its location, the corner fireplace does not always look equally good and advantageous, it requires a preliminary selection of the most suitable place and other parameters.

Knowing the dimensions of the corner fireplace, you can easily choose for it a unique, most harmonious and compatible design with the overall interior of the room, calculate its power and purchase all materials and accessories.

Correct definition of parameters

The corner fireplace, the dimensions of which have already been calculated, can be made of any materials and have a certain lining of the hearth. Before making your choice, we recommend that you familiarize yourself with the following selection rules:

Criterias of choice	Detailed description
Decorative hearths	The dimensions of the corner fireplace largely depend on the type of hearth chosen for installation and the fuel used for its operation. If you are looking for an exclusively decorative solution or a firebox that will serve as an additional source of heating for a house or apartment, we recommend that you pay attention to fireplaces that work with bioethanol, electricity.
Effective foci	Installation instructions finished model always included in the basic package. The most effective foci that can become the main source of heating in the premises are gas and classic wood-burning structures. If the installation gas boiler possible both in private and in apartment building, then wood-burning fireboxes require a mandatory chimney, which is possible only in your own home. It should be noted that the installation of such installations is more complex, costly and lengthy.
Budget materials	The selected finish, materials for the manufacture of the hearth and portal also play an important role. The most inexpensive and budgetary coatings are drywall, metal profiles, ceramic tile, decorative plaster. Due to their low cost, the design of portals, hearths or such cladding provide less high efficiency and efficiency.
Expensive coatings	The price of materials, coatings that form and give the furnace an additional heat capacity, efficiency, heat transfer is quite high. This category includes tiles, natural minerals, cast iron, steel. Distinctive features materials are practicality, durability, fire resistance, easy maintenance and environmental friendliness.

Tip: a corner fireplace, the dimensions of which are chosen individually, must be thought out to the smallest detail. Before starting assembly or purchase, determine for yourself the optimal price range, a list of installation and installation work that you will need to perform. This will greatly facilitate the workflow and help determine the dimensions, type of fuel and other features of the hearth.

Decorative fireplace dimensions

The dimensions, the corner fireplace for which is determined according to the area of ​​\u200b\u200bthe room for decorative installations, can also be determined based on the following tips and recommendations:

• The room selected for the installation and installation of the structure must have suitable dimensions. As a rule, the dimensions of the oven should not exceed one twenty-fifth of the living room;

Example: for a room of 25-30 squares, the size of the heating corner installation should not exceed one square. Moreover, each of its sides, which is adjacent to the wall covering, is about 1.4-1.6 meters.

• Since a real flame does not burn in the hearth of false fireplaces and the structure does not heat up, it is quite possible to make it not only an addition and decoration to the interior, but also add a certain functionality. To do this, equip the frame with various racks, countertops or shelves on which you can place books, accessories and other necessary, useful little things;
• If you want to install a purchased electric or bio firebox in a decorative portal, all calculations are made according to the existing installation dimensions. If the portal is purchased, you can find its installation dimensions in the instruction manual that came with the purchase. For home-made frames, all measurements are made by hand, in this case it is quite difficult to choose a hearth that is suitable in size and it is quite possible to make it only on order.

Photo of corner fireplaces in various interiors you can also view in this article.

How to calculate the dimensions of the combustion chamber

• To calculate such a parameter as width, you will need to add up the width of the firebox itself and its side parts, as well as fold the frame consoles;
• To calculate the height, the height of the woodshed, mantelpieces and other decorative elements;

Important: when performing calculations, pay attention not only to its length, width, but also to its depth. The dimensions of corner fireplaces are calculated according to the following scheme (example): with a width of each sidewall of 250 millimeters and a height of 400 millimeters, we additionally take into account such parameters as the height of the cornice, together with mantelpieces or countertops (an additional 300 millimeters). As a result, we get a width equal to 112.5 centimeters and a height of 132.8. In this case, the side walls will be equal to 300 millimeters (if we take into account the depth of the combustion chamber). The length of the walls that are adjacent to the wall ceiling is taken into account as its width (it is necessary to divide this numerical value by 1.4), for this case study we get a numerical value of 0.8 meters.

Tip: in order to perform all calculations as quickly and accurately as possible, you can perform all the necessary calculations directly on the existing instruction with the image of the frame in several projected variations.

Metal corner fireplace: dimensions

The size of a corner fireplace made of metal is calculated based on a list of other criteria, rules:

1. The overall dimensions of the metal hearths are calculated based on the characteristics of the firebox, which can have both a completely separate floor and built-in location;
2. The size of the furnace depends on the type of fuel chosen - it can be either gas or firewood, coal or purchased pellets;
3. The height, width and depth of the model is selected based on the area of ​​\u200b\u200bthe room selected for installation, as well as the power of the heating unit itself. Learn more about power and other technical features, the functionality of the model can be from the supplied passport, manual or instructions;
4. In order for the power and efficiency of the finished hearth to be optimal, first of all, calculate the area of ​​\u200b\u200bthe house or apartment that you want to heat, then multiply the resulting numerical value by the footage of the height ceilings and divide by twenty.

Example: if your house is 70 square meters and the ceiling height is 2.7 meters, we get a value of 189 cubic meters. Dividing 189 by twenty gives us 9.45. This means that the power of the heater to create high-quality and uniform heating should be at least 9-10 kilowatts.

Corner fireplaces, the dimensions of which are shown in the photo in this article, depending on their dimensions, are suitable for installation in rooms with different area, design features.

Important: built-in corner fireplaces, the dimensions of which are no less important when choosing and installing, are calculated according to the scheme of decorative hearths and portals. The exception in this case will be fireboxes, the installation of which is carried out in a frame made of bricks (the parameters of the bricks themselves are taken into account).

Dimensions of brick structures

If you want to assemble a corner fireplace with your own hands, drawings, dimensions for it must be selected with additional accuracy. The following rules and recommendations will help you with this:

1. In order for such a brick oven to have suitable dimensions and appropriate efficiency, functionality, it is necessary to make very careful calculations. To do this, it is important to note the ratio of the combustion chamber to the portal, the area of ​​\u200b\u200bthe house and the room in which it will be located. It is equally important to choose a brick of a certain size in order for the installation to correspond to the declared dimensions, to fit well into the specified angle;
2. The calculation is made according to the following formula: the area of ​​​​the room selected for installation is determined, the indicated numerical value is divided by one hundred (the area of ​​\u200b\u200bthe furnace hole is determined);

Tip: in order for the heat transfer of the heating corner unit to be as high as possible, the combustion chamber is made in the form of a trapezoid or triangle, while its rear end gradually narrows.

1. In order to determine the width of the furnace hole in the shape of a triangle, you need to determine its area, then take the square root from it and multiply by two units;
2. Such a parameter as depth is calculated as follows: for this, the width is divided by 1.4. The height of triangular figures often corresponds to its width (maybe a little more);

An example of calculating the diameter: in order to calculate the diameter of the chimney (on average it is 1:10-16), you need to use following scheme. The dimensions of the fireplace are calculated, and the area of ​​\u200b\u200bthe room is determined. With a footage of 40 squares, this value is divided by 100, and thus we get 0.4 square meters. The width of the firebox is found by extracting square root from the number 0.4, after which the action is performed by multiplying it by two units. It turns out 1.2 meters, this distance allows you to fit 4-5 bricks. The sides are equal to 1.2 / 1.5 = 0.80 (3-4 brick units, depending on the initial selected size).

Important: if you want to fold a trapezoid-shaped firebox, we recommend that you do not perform your own calculations, but use the help of a professional or a ready-made, proven ordering scheme. These recommendations also apply to combustion chambers with convex or rounded outlines.

For massive corner structures with large dimensions and a total weight of more than 200 kilograms, it is recommended to build a separate foundation. In this case, you may need the following additional tips, recommendations:

• The main part of the foundation, filled with concrete mixture, should be 5-12 centimeters larger than the installation itself on both sides;
• The foundation of the fireplace will be installed completely apart and not fixed to the main one, to which the house itself is attached;
• An additional foundation should be located at a distance of 10 or more centimeters from the main one. The space between the two elements must be filled with sand;
• The foundation itself is completed at a distance of 15 centimeters before the start of the floor covering - this will allow laying two more rows of bricks.

Important: for the purposes fire safety the distance from the chimney to various ceilings, walls and beams must be at least 20 centimeters. Also, additional insulation of all floors and elements (floor, walls) that are in contact with and bordering on fireplaces is carried out. For these purposes, special construction foil is most often used.

The fireplace is a corner fireplace, an example of the correct design of a smoke hole: one brick has an area of ​​\u200b\u200b0.03 square meters, which in turn is equal to the area of ​​\u200b\u200bthe furnace hole from 0.3 to 0.45 squares. To ensure uninterrupted and effective work traction mechanism, you need to choose the appropriate height. On average, its range can be from 2 to 6 meters. If the indicator exceeds these values, it will be necessary to additionally provide for the installation and presence of knees.

Having your own fireplace is a dream for many, but its realization requires high-quality preparation and solid implementation. put a fireplace on your own not recommended for smaller rooms, as living in such a place can be quite dangerous. But if you want to make a small hearth in a room with an area of ​​\u200b\u200bmore than 20 squares, then this can be done.

by the most optimal material brickwork is considered to create fireplaces, but there is a simpler solution to this issue - electric fireplace, which can perform not only decorative, but also practical functions. However, for a suburban building, this option will be more expensive and not practical.

First you need to calculate the area of ​​\u200b\u200bthe fuel portal. For the most part, it is no more than 2 percent of the area of ​​\u200b\u200bthe room in which the fireplace is installed. If the area is 15%, then the size of the portal will be approximately 0.3 "square".

Next, you need to calculate the size of the fireplace.

Elements of a brick fireplace:
A - the width of the portal; B - the height of the portal; B - depth of the firebox; 1 - chimney; 2 - fireplace board; 3 - portal; 4 - firebox; 5 - fireplace step; 6 - floor; 7 - under the fireplace;

The best ratio of height to width is two to three. The fireplace will be approximately 0.7x04, based on what parameters the room has, whether you want to get a square-shaped fireplace or create a more elongated shape.
Regarding the depth, it should not be very large or not very small. With a room size of 15 "squares", the most optimal solution will be a depth of 20-30 centimeters. More specific figures can be obtained only with information about the length and width of the room.
So that the heat does not leave the building completely, the chimney should be made approximately ten times smaller regarding the area of ​​\u200b\u200bthe portal. Among other things, the hole is advised to be round.

Fireplace Size Chart

can build a quality corner fireplace that will work and look beautiful. But how does a beginner get all the work done? on one's own? In this article, I decided to touch important points faced by stove-makers when erecting corner fireplaces.