Installing a fireplace indoors and organizing it efficiently and safe work is not limited to just the construction of the foundation, frame and chimney. To complete all the work yourself, you need to apply knowledge of several branches of physics, including thermal phenomena. One of the most important stages construction is the thermal insulation of the fireplace, this is a set of measures to ensure the protection of the surface from heat leakage. Several fireplace blocks are insulated at once: the firebox, the body and the chimney.
Fireplace design drawing
Why is thermal insulation needed?
The role of the thermal insulation material is that, due to its poor thermal conductivity, the transfer of energy through the layer of material is difficult. Thus, it is possible not only to preserve the heat that the fireplace produces, but also to protect the structural elements of the house from high temperatures.
Chimney insulation serves several purposes.
- At the external location of the pipe, intense heat exchange occurs with the cold air of the street space. A huge part of the amount of heat is released into the atmosphere, but could be used to heat the room. If you reduce this share, you will achieve higher efficiency indicators. The solution to this issue will be insulation, which is applied on top of the walls of the chimney.
- Combustion products that are emitted through the chimney contain carbon dioxide and water vapor. The temperature of all this gas exceeds a hundred degrees. Upon contact with the chimney walls, which have cooled from the external environment, condensation forms on the surface of the latter. Acids, which are a combustion product, are mixed into it. The result is a chemically active environment, leading to the destruction of the walls. The appearance of condensation can only be avoided by increasing the temperature of the pipe itself, that is, by providing it with high-quality insulation.
- In places where the chimney pipe passes through the ceiling or roof, contact of materials necessarily occurs. When wooden buildings this situation is a fire hazard. But additional function insulation will be to protect the ceiling surfaces.
Corner placement option
Internal insulation of fireplaces involves the localization of energy inside the firebox for the purpose of its directed transmission. The fireplace should not emit heat in all directions, especially if it is installed near a wall. It should warm those sitting directly in front of the fireplace. Special reflectors for fireplaces are installed inside the firebox and serve as a screen from infrared radiation. As a result, all the heat escapes through the combustion hole into the room.
Thermal insulation of a furnace is actually a much more important process than it might seem at first glance. Unfortunately, many owners of private houses neglect stove insulation, considering it an unnecessary measure. In this article we will look at the reasons why stoves are insulated and methods of insulation.
Why insulate the stove?
In the furnace structure the following must be insulated:
- Chimney.
Thermal insulation for chimney important for several reasons:
- Insulation can prevent the chimney from cooling quickly, as a result of which the heat in your home will remain warm for a longer time.
- A layer of insulation prevents heating of household structures.
- Condensate accumulates in uninsulated pipelines, which is not just dampness, but a very aggressive substance. The fact is that during the combustion process, moisture and acids are released from the fuel, which mix and settle on the walls of the pipeline, leading to slow destruction of not only heating system, but also structural elements building.
- Those walls of the stove that are located in close proximity to the wall of the house. Thermal insulation of the wall from the stove is also a very important process, since the heat of the stove leads to cracking brick walls with their subsequent destruction. In block or wooden houses the stove must also be insulated from the walls by installing insulation.
We produce stove insulation
Insulation methods depend on several factors. For example, if we talk about a chimney, then everything depends on the material and design features. Let's consider modern methods insulation of furnace structures.
Thermal insulation between the wall and the stove
Many home craftsmen are interested in thermal insulation of the stove from the wall. And even though the insulation of the stove is neglected at first, over time the effects of the stove’s heat on the adjacent wall become clear. And the only way to protect a wall from destruction is thermal insulation.
There are several options for this:
- Perhaps the simplest method, which is distinguished by its low price and ease of execution.
- Lay asbestos boards on the wall.
- Place foil on top of the plates, thus creating a reflector.
Advice! This method applicable when the stove is at a significant distance from the wall (50 cm or more). If the distance is less, then asbestos cannot be used, since when overheated it releases harmful substances.
Naturally, many will not like this method also for the reason that the foil wall is not very aesthetically pleasing. appearance.
- The next method is more complex, but much more effective. The instructions include the following steps:
- Attach metal hangers to the wall for vertical sheathing.
- Should be attached to the hangers wooden slats, which should be 2-3 cm wider than the insulation boards.
- We lay mineral wool slabs between the slats.
- A reflector is nailed to the slats on top of the mineral wool.
Advice! Since mineral wool is afraid of water, it is advisable to use not ordinary foil, but a material with waterproofing properties, for example, penofol.
- We mount heat-resistant hot-rolled sheets onto the reflector.
- Any heat-resistant facing material can be mounted on top of plasterboard: mosaic, tile, stone, etc.
This creates reliable thermal insulation for the stove, as a result of which the wall will no longer heat up.
Thermal insulation of chimney
Thermal insulation of the chimney can be done various materials, namely:
- - one of the most popular materials these days. It has a number of unique positive characteristics, but is afraid of moisture, which is why a waterproofing layer is necessary when laying mineral wool.
- Glassy. Has properties similar to mineral wool.
- Brick. Whole or chipped bricks are very often used as insulation.
- Slag slabs or mortar.
These are the most suitable thermal insulation materials for furnaces, which provide truly high level insulation.
As mentioned above, the insulation of a chimney depends on the material from which the pipe is made.
- Asbestos cement chimney.
- We clean the surface of the pipe from dirt and dust.
- We place the mineral wool in a steel casing that will be placed on the pipe. Such a casing can be made of roofing or galvanized iron. It consists of several parts, each of which does not exceed 1.5 meters in length, which makes compacting the insulating material easier.
Advice! The diameter of the casing should be 12 cm larger than the diameter of the pipe.
- We put the first part of the casing on the chimney, evenly distributing the insulation.
- We put on the second part. The gaps between the two parts of the casing should be no more than 100 mm.
- We insulate the resulting structure to the very top.
- The upper part of the pipe is installed with a slight slope.
- If there is any free space left between the chimney and the casing, it should be sealed with cement mortar.
- Steel chimney. Modern steel chimneys are structures made of two pipes with different diameters. In this case, the smaller pipe is the chimney on which the protective cover. A thermal insulation layer is laid between the pipes.
- The smaller diameter pipe should be inserted into the larger diameter pipe.
- The space created between the two pipes must be filled with mineral or stone wool.
- Brick chimney. Thermal insulation for fireplaces and stoves whose chimneys are made of brick can be done in several ways:
- Plastering method.
- We attach a reinforced mesh to the pipe.
- Prepare a slag-lime solution. To do this, we use fine slag, lime and a small amount of cement.
- Apply the first layer of plaster to the chimney, 3-4 cm thick.
- Next, you should wait a while until the plaster dries.
- We apply the following layers, the thickness of which should be 5-7 cm. Ideally, it is enough to apply 3-4 layers.
Advice! For the first layer, the consistency of the solution should be more liquid than for subsequent layers.
- We whiten the pipe with lime or chalk paint.
This method allows you to reduce heat loss by an average of a quarter.
- Product of a complex . A more complex, but also more effective approach.
- Cut mineral wool to the size of the chimney.
- Secure the heat insulator to the pipe using metal tape or wire. Studs with washers are also suitable for fixation.
- Line the chimney with asbestos-cement slabs or bricks. The thickness of the facing slabs must be at least 4 centimeters.
- Plaster the surface.
This method of lining chimney pipes allows you to:
- Reduce heat loss by half.
- Increase the density of the chimney.
- Prevent the formation of condensation and, accordingly, the destruction of the chimney.
- Increase the level of safety when using heating systems.
Conclusion
As you can see, thermal insulation of stoves is simply necessary. Especially if the oven is high temperature. Therefore, thermal insulation is carried out in production vacuum furnaces. In everyday life, you can do everything insulation work on one's own.
In the video presented in this article you will find Additional information on this topic.
A fireplace in your home is an opportunity to enjoy the warmth around the clock. But it is not enough to establish a fireplace; it is important to create conditions for its safe and efficient work. For this purpose, thermal insulation of fireplaces is carried out: chimney, firebox, walls using high-quality materials.
Why insulate the stove?
When it comes to thermal insulation of fireplaces, the question arises about its necessity. If there is no time, money and desire to carry out additional work on the stove, then insulation may not be carried out. But to increase efficiency and increase service life, the work is necessary and important. And why exactly you need to make insulation should be considered for each part separately.
Fireplace insulation
- to prevent heating of walls located near the pipe;
- to increase the cooling time of the pipe, the heat from which is evenly distributed in the room;
- to prevent condensation accumulation.
Thermal insulation is also required to protect the walls adjacent to the fireplace. It is important to strengthen the load-bearing and interior design to prevent fire and damage to the finish along with the base. Insulation also increases efficiency, helping to quickly distribute heat throughout the room.
Modern materials for insulation
Thermal insulation of fireplaces and walls to protect against hot fireboxes is carried out using several materials, many of them have been developed recently and are used mainly by professionals:
Chimney insulation with basalt wool
- Basalt wool with a foil surface - can withstand high temperatures (up to +750 degrees). Goes well with other parts of the fireplace chimney.
- Gypsum fiber sheet - obtained by pressing cellulose fiber and natural gypsum. It is characterized by high strength, the ability to retain properties under any operating conditions, moisture resistance. It is used for thermal insulation of the firebox and furnace box, extending its service life. The disadvantage is that the sheet cannot be bent, so it is not used for a chimney.
- Calcium silicate is a material with high thermal insulation properties. Used when arranging the firebox and fireplace box. Calcium silicate is suitable for stoves that will be decorated with shelves and niches. Thermal insulation prevents overheating additional elements, as well as the fireplace itself. The material fits well on any surface and goes well with putty. Among the shortcomings - high price. But when arranging a fireplace in a private home, silicate is indispensable.
- Supersil – fabric thermal insulation material with operating temperatures up to 1200 degrees. It is based on silicon oxide, which is environmentally friendly and safe. When heated, the material does not emit dangerous vapors and is suitable for insulating fireboxes, hoods and walls. The high cost prevents superpower from being used.
Cheap and practical material, suitable for self-installation, is stone mineral wool in slabs. She answers everyone necessary requirements: non-flammability, excellent thermal insulation, high temperature resistance, durability.
Thermal insulation of fireplaces and walls is carried out in several stages
- Preparation. Calculate in advance how many slabs you will need to minimize costs and reduce waste.
- Wall insulation with mineral wool. The wall located next to the fireplace is exposed to high temperatures. As a result of strong heating, the structure is subject to fire and damage. To ensure that the heat is retained inside the firebox and does not go outside, mineral wool with a foil surface is used. Secure the boards with high-temperature adhesive or stainless steel dowels. This method of thermal insulation is suitable for fireplaces located at a distance of no more than 50 centimeters from the wall.
- Insulation with multilayer construction. If it is necessary to insulate walls located at a distance of more than 50 centimeters from the fireplace, then a multilayer structure is made, consisting of the following materials: metal lath for sheathing, wooden slats, mineral wool slabs, reflector (foil), heat-resistant plasterboard, facing material (tiles, stone). This method prevents the walls from overheating, while maintaining their attractive appearance (which cannot be said about nailed mineral wool).
- Thermal insulation of wooden and stone elements. This is done to protect against overheating and further damage. To do this, pieces are cut from mineral wool the right size and glued to the parts on the side adjacent to the fireplace.
- Thermal insulation of the chimney. It is carried out depending on the type of structure.
Fireplace insulation
How to insulate a chimney
Having protected the walls from the hot fireplace insert, proceed to insulating the pipe. For this, one of the following materials is used:
Chimney insulation
- mineral wool is the most popular and sought-after material, which is convenient and inexpensive to work with;
- glass wool - its properties are similar to mineral wool, but it is more difficult to work with;
- brick - the use of whole and chipped specimens is allowed;
- slag slabs - designed for insulation in unstable climatic zones.
If the fireplace and chimney are made of brick, then insulation is carried out quickly and with little financial loss. To do this, the surface is plastered using a reinforcing mesh. At the junction of the pipe and the roof, reinforce it - lay an additional layer of brick. This completes the thermal insulation.
Much more difficult to work with round pipes made of metal and ceramics. These materials overheat strongly during operation of the fireplace, and accidental touching them will inevitably lead to severe burns. Therefore, be sure to take care of insulating such pipes. This is necessary to reduce heat loss and maintain the integrity of the pipe for a long time.
Thermal insulation is carried out with non-flammable materials of dense structure. Mineral wool is ideal and is used to wrap the pipe as the first layer. The second layer of insulation is reinforced on top - stainless steel sheets. They are wrapped around the chimney and sealed. Instead of stainless steel, plaster can be used.
The above method of thermal insulation increases the efficiency of the chimney, increases the service life of the structure and prevents overheating of nearby surfaces. If all the work is done correctly, then re-installation will be required after about 15 years with intensive use of the fireplace.
Video: Insulating fireplaces
A fireplace in a home is not only a decoration that brings a pleasant atmosphere. It gives real heat that warms the house, especially during the necessary heating season those. in winter. What can be done so that the fireplace can be used effectively? This article will discuss proper thermal insulation.
Step two - insulate the back wall
The back wall of the fireplace is often an external partition, and therefore also has contact with hot air, and therefore must be protected by plates with an aluminum screen. Due to this, more hot air will remain inside the fireplace body. The air will subsequently be distributed into the room. The slab is mounted mechanically using dowels made of of stainless steel or glued using a high temperature adhesive solution.
Step three - connecting the plates
To avoid cracks through which dirt can get outside and inside the fireplace, it is necessary to tightly fold and connect the slabs. For this purpose, high temperature adhesive tape is used with aluminum foil to maintain continuity of the joints of the aluminum foil covering the boards. The slabs are placed with foil inside the fireplace.
Step four - saving intervals
It is very important that the insulation does not lean against the fireplace or firebox. An air gap of at least 4 cm must be left between the fireplace and the stoves.
Step five - insulation of stone or wooden elements
Stone and wooden elements the fireplace should also be insulated. There is a high risk that the lack of insulation on these elements will lead to their damage.
Step six - installation of steel profiles
After installing the insulation, a casing for plasterboard is made from steel profiles. The frame is built after installing the lower part of the fireplace.
Step seven - compaction
For thermal insulation to perform its function, it is necessary to reverse Special attention into two elements: precise installation of panels and sealing of all joints with aluminum tape.
Step eight - highlighting the pressure chamber
To reduce the unwanted effect of hot air from the fireplace on the ceiling, a decompression chamber is installed directly below the ceiling. Insulation is also installed in its interior. The next step work is installation plasterboard sheets to the grate.
Step nine - installation of ventilation grilles
The housing is equipped with 2 ventilation grilles made of materials resistant to high temperatures. The air supply grille is installed in the lower part of the housing, and for exhaust ventilation on the opposite side at the top. The decompression chamber must also have 2 ventilation grilles to ensure cooling of the ceiling. Then all necessary finishing work is carried out.
Note! Insulation material for fireplaces must be resistant to very high temperatures. The presented project uses FIREROCK plates that can withstand a constant temperature of 600°C, and aluminum foil itself - up to 500°C.
Video
Still have questions? In the video presented for this article you can see not only how to make insulation but also how to install a fireplace yourself.
Proper fireplace insulation step by step. Photo instructions
A fireplace is not only original item interior, but also a heating device.
A fireplace is not only an original piece of furniture, but also a heating device. Although, as a rule, not the only one. It allows you to create the ideal atmosphere for a relaxing comfortable rest. Many owners country houses after working day or weeks they prefer to spend evenings with family and friends near a live fire.
Fireplaces are placed in different ways:
- built into a load-bearing fireproof wall or attached to it (wall-mounted),
- placed in a corner (corner) or in the center of the room (island).
They are decorated with openwork casting, valuable types of wood, tiles, polished or crushed marble (natural or artificially aged) and other finishing materials.
Briefly about the design of the fireplace
The design consists of two main parts - the firebox (this is the basis of the fireplace) and the chimney. Between them is the so-called tooth. Combustion products passing through it abruptly change direction. There is also additional details: valves, grate grids, doors, dampers, etc.
Fireplaces come with open and closed fireboxes. Options with an open firebox have a relatively low efficiency (10-25%). They are characterized by an increased fire hazard, but provide an opportunity to contemplate open fire and at the same time improve the ventilation of the room.
Fireplaces with a closed firebox have higher efficiency, and the risk of fire from them is much less.
Types of chimneys and their features
The most important part of the fireplace is the chimney. This is a vertical sealed channel to create traction. Draft is needed to remove fuel combustion products, as well as to supply oxygen and ensure air exchange in the room.
The chimney must be fireproof and withstand the effects of:
- high temperature,
- chemically aggressive exhaust gases,
- a mixture of soot and condensate formed during fuel combustion.
Therefore, they are made from steel, ceramic or glass pipes, or traditionally laid out from solid clay bricks. Let's briefly look at all these types:
Brick chimney - least expensive, but not the most effective option. And the process of laying it is quite labor-intensive. IN Lately for better abduction flue gases inside brick chimney insert a special insert steel pipe.
Steel chimney, the most common and available today, consists of two pipes round section of various diameters. Outer pipe made of stainless or galvanized steel, and the inner one is made of stainless steel. Such a chimney is called coaxial. We are already a little familiar with it from the article Selecting, installing and maintaining a chimney. Between the pipes there is a fibrous insulation with a thickness of at least 50 mm. A prefabricated steel chimney is quite easy to install, relatively lightweight and does not require the construction of a foundation. Therefore, I immediately want to warn readers against low-quality homemade products in this area. The fact is that in construction markets you can find “home-made” coaxial chimneys. Trying to save money, “craftsmen” place ordinary heat-insulating wool in the gap of such a chimney instead of heat-resistant wool specially designed for this purpose. The heat resistance limits of these materials are not comparable. The conclusion suggests itself.
A more complex modular ceramic chimney consists of 3 layers:
an internal ceramic liner, external elements (blocks) made of lightweight concrete and insulation between these layers. This design is more durable and provides a high level of thermal protection. However, installation of a ceramic chimney requires highly qualified performer.
Glass chimney- the most expensive and complex option, but it looks very impressive and stylish. It is typically used for island fireplaces. Glass chimneys are resistant to corrosion and high temperatures, as well as good draft and thermal efficiency. The installation of such a chimney is trusted only to professional performers, since it is necessary highest quality works
Chimney thermal insulation
The chimney must be reliably insulated. Between it and the structures of the house (ceiling, access to the roof), a fire-proof cutting made of non-combustible material (for example, from stone wool). The thickness of the cutting depends on the type of fireplace and chimney design.
Thermal insulation of the chimney is necessary to:
- prevent heating of the walls in contact with the chimney;
- avoid rapid cooling of combustion products due to cooling of the chimney;
- keep the house warm (i.e. increase the efficiency of the fireplace);
- prevent the formation of condensation inside the chimney. Condensation of water vapor and resins will inevitably appear when the temperature of the flue gases decreases if the thermal protection is insufficient.
Brick chimneys are insulated with rolls of stone fiber, but more often they are plastered using reinforcing mesh. Round metal and ceramic pipes are wrapped in a roll of thermal insulation and covered with a stainless steel sheet on top. Sometimes instead metal sheet Mesh plastering is also used. We will talk about insulation materials below.
Why does a fireplace need thermal insulation?
When building a fireplace, you should pay close attention to its thermal insulation, especially for the chimney and those surfaces that are located close to the walls.
If the house is brick or made of foam or aerated concrete, and the fireplace in it is not insulated, this can lead to the finishing and even the walls themselves cracking and collapsing. And in log or frame houses a fireplace without thermal insulation can cause a fire in wooden structures.
The operation of the fireplace directly depends on how well the thermal insulation is arranged and the materials chosen for this purpose. In addition, this is a fire safety issue, so it is not worth saving on insulation and its installation.
The most significant indicator of the quality of insulation is its thermal conductivity. The lower the thermal conductivity coefficient of a material, the greater its ability to retain heat in a structure. This coefficient is the criterion for choosing insulation. Of course, such properties as durability, non-flammability, cost, etc. are also important.
Materials for thermal insulation of fireplaces
TO modern materials for the installation of thermal insulation of the fireplace and chimney include:
- stone, mullite-siliceous and siliceous fibers and products made from them,
- superizol,
- superpowers,
- vermiculite boards,
- gypsum fiber sheets,
- mineralite, etc.
Stone fiber
Stone fiber is produced in the form of thermal insulation boards and rolls. It can be regular or with a foil surface. The latter can withstand heating temperatures up to +7500 °C. Such fiber is obtained by melting a mixture of gabbro-diabase rocks taken in a certain ratio with limestone or marl. The resulting fibers are glued together with a small amount of binder, lightly pressed into piece products and metal foil is applied to one side.
Stone fiber slabs:
- fire resistant,
- hydrophobic,
- resistant to rotting
- durable,
- in case of fire, destruction is delayed for some time load-bearing structures building.
To insulate fireplaces, special rigid boards coated (on one side) with aluminum foil are most often used, for example Fire Batts ROCKWOOL FIREPLACE BATTS (Rockwool), PS17 (Ragos), "TECHNO T80" (TechnoNIKOL).
Mullite-silica glass fiber
MKRR-130, more often it is called ceramic, and even more often - kaolin wool. This is a heat-insulating material obtained by melting a mixture of technical alumina and pure quartz sand and blowing the melt of this mixture onto fibers.
Fiberglass is produced in the form of piece products - slabs and rolls, as well as in the form of lump wool, packed in boxes or bags. The binder is usually refractory clay, aluminous cement, liquid glass, organosilicon compounds. The average density of piece products is 80-130 kg/m³. They differ:
- low thermal conductivity,
- high heat and temperature resistance,
- low heat capacity,
- flexibility (which ensures a tight fit of the insulation to the insulated surface),
- good sound insulation.
Application temperature: long-term - up to +1150 °C, short-term - up to +1250 °C. However, it should be borne in mind that the cost of such fiber is quite high.
Superizol
Superizol (in Belgium - "Skamotek 225", in Germany - Silka) is an effective and durable slab insulation based on calcium silicate with a fine-porous structure and application temperatures up to +1000...+1200 °C. It is characterized by low average density, is environmentally friendly and easy to process.
It is easy to install, easily glued to insulated surfaces with IZOLGLUE glue, it is secured with self-tapping screws or a system connections G-K. You can cut a super-isol board with a regular saw.
Superizol is used for almost everyone insulation works when installing fireplaces. In particular, for thermal insulation of the chimney passage through the ceiling, walls and roof, adjacent walls behind fireplaces, lining of fireplace inserts, etc.
Vermiculite boards
They are obtained by pressing a mixture of expanded vermiculite grains (layered hydromica) with an inorganic silicate binder. Foreign analogues - vermiculite thermal insulation boards Thermax (Austria), GRENAR-ISOL (Czech Republic) and Scamol (Denmark). The average density of the slabs is 650-900 kg/m³, the thermal conductivity coefficient is no more than 0.13 W/(m.deg).
Vermiculite boards are characterized by:
- high fire resistance,
- durability,
- rigidity,
- ease of processing,
- environmental safety,
- decorativeness.
The maximum temperature for their use is +1100 °C. But the material is fragile, easily crumbles and breaks, so it requires careful handling during installation.
Superpower
Supersil (Supersil) - heat, electrical and sound insulating, fireproof, environmentally friendly pure material made of silica fiber without a binder, recommended for use at temperatures up to +1200 °C. At low medium density it is different:
- sufficient strength,
- flexibility,
- ease of machining.
However, it is quite expensive. It is made in the form of rolls (stitched with silica thread without lining, covered with silica fabric or aluminum foil on one or both sides), as well as in the form of a durable multilayer material made of cross-linked silica fabrics, etc.
Gypsum fiber sheets
Gypsum fiber sheet (GVL) is produced by pressing a homogeneous mixture of cellulose fiber (fluffed waste paper) and gypsum binder. Possesses:
- density 1000-1200 kg/m³,
- high strength,
- durability,
- ability to maintain properties under any operating conditions,
- surface smoothness,
- hydrophobicity,
- water resistance,
- fire resistance.
At the same time, GVL is environmentally friendly and, importantly, inexpensive. In combination with insulation it can form a durable heat-insulating fireproof structure. It is used both for the construction of the fireplace itself and for thermal insulation of walls and floors near it. Gypsum fiber sheet cannot be bent, so it is not used when constructing chimneys.
Minerite
These are large-sized panels based on fiber cement (1200-3600) x (450-1500) x 6 mm with the ability of a solid surface to self-clean. The composition of mineralite includes:
- cement (90% of the total mass),
- mineral fillers: mica, limestone and cellulose fibers.
The boards are characterized by increased impact resistance, do not burn, do not absorb moisture, do not rot, and are decorative. Application temperature - up to +1100 °C. They can be lined ceramic tiles, wallpaper, paint.
Installation and maintenance of the slabs is extremely simple. They are used to insulate walls when constructing fireplaces as fire protection and thermal insulation.
Methods for thermal protection of house walls from the heat of a fireplace
- Boards that can withstand high temperatures are attached to the wall (for example, made of stone or mullite-silica fiber, gypsum fiber sheets or mineralite). Aluminum foil is attached to them. It will reflect the heat flow coming from the fireplace, due to which the heat spreads throughout the room. The advantages of this method: easy to implement and does not require large financial outlays. Minus: A wall covered in foil is unattractive.
- Mounted on the wall multilayer construction, consisting of slats, between which slabs of temperature-resistant insulation are laid. Sheets of heat-resistant plasterboard or gypsum fiber board are attached to the slats, which are finished facing material- ceramic tiles, artificial stone and so on.
In what order should the fireplace and chimney be insulated?
The first stage is determining the type of work and the order of its implementation, selecting materials and calculating their quantity. To optimize costs, you need to calculate how many and what building materials will be needed for thermal insulation. Find out where you can buy them cheaper without losing quality. Increase the calculated quantity, for example, by 3-5%, since during the installation of materials they may be damaged.
The operation of the fireplace and chimney is related to the combustion process and high temperatures, and their design requires very serious attention.
Therefore, carry out work on installing a fireplace strictly in accordance with the requirements of SP 7.13130.2013 “Heating, ventilation and air conditioning. Requirements fire safety» , which provides the principles for constructing stove chimneys and the rules for installing insulation from a fire safety point of view. Good luck! published
If you have any questions on this topic, ask them to the experts and readers of our project.