Many people are forced to live in difficult climatic conditions. Not everyone can move to more acceptable regions, so most of the time has to be spent in well-heated rooms. This suggests that heating systems should be as efficient as possible, and special devices for them should be aesthetic! So which heating batteries are best for an apartment, what are their prices? You will find answers to these questions in our article.
What to look for when choosing radiators?
Modern heating appliances should be selected with extreme caution, as they must serve their owners for a long time and reliably. The main selection criteria are:
System type.
Today, 4 types of radiators are especially popular, each of which has its own advantages and disadvantages. Cast iron models are distinguished by low cost, excellent thermal conductivity, durability and the ability to keep heat even after the heating is turned off. Among their disadvantages are slow heating, the need for frequent maintenance, fragility, consumption of large amounts of water and poor tolerance of water hammer. Aluminum systems have high heat dissipation, compactness, reasonable cost and light weight, but they are subject to corrosion. Steel radiators heat up quickly and are liked by customers for their low inertia and maximum heat transfer, and the most significant disadvantage of this type is the formation of rust. Bimetallic models are very demanding on water quality, but at the same time they are light in weight and are resistant to high pressure. 
Price.
Water heating devices are considered the cheapest, so when you purchase them, you can save a good amount of money. Foreign goods, of course, will cost more than domestic ones, but some of them will last much longer. Cast iron and aluminum radiators cost an average of 350 rubles per section, bimetallic - about 600 rubles per section, and steel in a complete set will cost 2-12 thousand rubles.
Heat dissipation.
Non-sectional radiators (steel) have a total heat output of 1200 to 1600 watts. As for this criterion for one section, in cast iron it is 100-160 W, in aluminum - 82-212 W, and in bimetallic - 150-180 W.
What are the best heating batteries for an apartment? Prices in 2019? Rating.
The best models of cast iron radiators. TOP 5
Despite the active promotion of modern heating appliances, cast iron radiators are still popular and have their customers. People like them for durability, as well as resistance to fairly high temperatures. In addition, most of them are not too expensive, so choosing a cast iron battery will always be the right choice.
Some of the best cast iron radiators include:
In the first place should be placed a model that has a great design copied from a French battery. It will definitely appeal to lovers of rarity. In addition to a stylish appearance, it has other advantages: a thermal power of 725 W, the amount of water in the section is up to 2.1 liters, and the presence of 5 sections.
A wonderful fixture, designed in a classic style, operates with a power of 420 W and has as many as 6 sections. You can connect this model both from the side and from below, which is what makes it easy to use. The distance between the axles is 500 mm, which is one of the main points that buyers pay attention to.
The heat exchanger at a favorable cost is distinguished by a power that can reach 1.2 kW. The battery is connected on the side. Its working pressure is 15 bar, and the allowable temperature is 150 degrees.
4. MZOO MS-140M-05
An excellent battery with 7 sections is liked by customers for its high quality and, of course, durability. Many people call her unkillable, which is not at all surprising. Such a model can serve its owners for a long time, in spite of any obstacles.
One of the main advantages of the radiator is its design, which allows you to place the battery in any interior. In addition, it has convenient dimensions and a heat flow of 150 watts. The volume of one section is 0.90 liters.
Read also: Solid fuel boiler for heating a private house, which one is better to choose?
The best aluminum models
Heating systems that quickly heat up and give off heat are known to all buyers. They are light in weight, so there will be no problems with installation on drywall. In addition, they are distinguished by a modern and memorable design, thanks to which the radiators can be easily used in any interior.
The best quality aluminum models are:
The Italian battery occupies the first position in many ratings. It can heat a room with an area of 40 m2 well. At the same time, this model forms a heat transfer equal to 180 W per section.
A good domestic radiator has an excellent heat dissipation of 250 W per section, due to which it is gaining popularity at a rapid pace.
The German-made panel radiator operates at a power of 5.8 kW. It can only be used with a central heating system.
A model with a maximum operating temperature of 135 degrees pleases its owners with a heat output of 183 W per section, as well as good heating of a room with an area of 25.6 sq.m.
The device, produced by injection molding, has an interesting design, a good volume of coolant and the possibility of lateral connection.
Read also: G basic boilers for heating a private house how to choose. Rating of the best 2018
The best steel radiators
Models made of steel have practically no flaws. They are great for an apartment. Such radiators quickly heat up, have an acceptable cost and are neutral to the chemical composition of the coolant.
The best steel radiators are:
In the first place very often is a German-made model. It has an excellent thermal output of 5790 watts. It is also worth noting its convenient fastening and good resistance to fairly strong pressure drops, which often occur in centralized heating systems.
Another German product worthy of the attention of all buyers. It differs from its competitors by the presence of safety edges. Thanks to this design, the battery can be easily placed in an apartment where small children are constantly running around. The thermal power of this model is 2014 W, but the number of sections is only 3.
A decent tubular model is very reliable. It, of course, is quite expensive, but this is due to a number of advantages: a heat output of 3900 W, the possibility of high-quality heating of an area of 40 square meters, as well as ease of operation. Some buyers also comment positively on the fine enamel finish.
4. PURMO COMPACT 22 500
The battery, which arrived in our stores from Finland, has a wall mount, a good lateral coolant wire and an acceptable cost. Power (maximum) is 5572 watts.
5. KZTO Harmony 2-500-12
The remarkable steel radiator is famous for its thermal power of 2160 W, 12 sections, as well as the possibility of side or diagonal connection.
The best bimetal models
Bimetallic heating batteries can be called truly universal and high-quality. They are made of aluminum on the outside and steel on the inside, hence the name. These models are easy to install, durable and lightweight. They are resistant to any pressure, heat up quickly and serve for more than 20 years.
1. SIRA RS 500
A high-quality Italian model is a profitable, reliable and efficient device for heating an apartment. The working pressure reaches 40 bar, and the resistance to the heat carrier is expressed in a good indicator - from 7.5 to 8.5.
2. Royal Thermo Piano Forte 500
The radiator can have from 4 to 14 sections. It has a stylish and modern design. The manufacturer has included here the unique Power Shift technology, thanks to which it is possible to increase heat transfer. This model is distinguished by the possibility of both floor and wall mounting, which pleases all buyers.
The main distinguishing feature of the radiator experts call a fairly large working pressure. It is 100 bar and can significantly reduce the risk of premature battery failure. The model has a beautiful design and requires only 210 ml of water per section for normal operation. The disadvantages of the model include not very good sound insulation and a rather high percentage of defects.
4 Global STYLE PLUS 500
No matter what high-quality batteries are in the apartment, sooner or later there comes a time when they have to be replaced with new devices. And immediately the problem is - which heating radiators are better to choose for an apartment? Another case when there is a desire to install new batteries is if the apartment has long had old cast-iron "accordions" that do not want to fit into the interior created by the owners.
The modern market offers a wide range of radiator models made of various materials and having a completely aesthetic appearance. Comparing the design of modern appliances with rough cast-iron batteries or inefficient and low-quality convectors that were previously installed in apartments, of course, I would like to see such novelties in my possessions.
Criteria for choosing radiators
It is necessary to approach the choice of modern radiators with all responsibility, since not all of their varieties are suitable for installation, for example, in a central heating system. Some types have characteristics that are designed for a clean coolant and a certain maximum load, so they simply will not be able to withstand water hammer, which, alas, is not uncommon in our utility networks. Other radiators, on the contrary, in an autonomous heating system will not show all their potential.
In addition to the selection of radiators according to performance indicators, it is necessary to correctly calculate the number of sections in the batteries for each individual room, otherwise their efficiency will be very low, and the apartment will not be comfortable enough.
So, the effect of installing new heating devices will be expectedly high, given all their operational nuances and following all the recommended technological installation rules.
To date, several different types of radiators are produced, differing in the material of manufacture and design:
- Cast iron batteries, both old models and improved, with an elegant modern or retro design.
- Steel radiators - tubular and panel.
- Bimetal heaters made of two types of metal.
- Aluminum of various quality levels.
When choosing batteries for installation in an apartment, the following criteria must be considered:
- The maximum pressure in the central heating system in the local heating network, and the possible limit for which the vending radiators are designed..
- The maximum temperature and features of the composition of the coolant in the system, as well as the endurance of radiators to these effects.
- Material for the manufacture of devices and its main physical characteristics.
- Battery design.
- Required radiator power - based on this parameter, the number and size of sections required for efficient space heating are calculated. These calculations are made based on the recommendations of building codes and regulations, and can be carried out in various ways, which will be discussed later in the article.
To begin with, you can give a small table, which, although briefly, but quite informatively characterizes the main types of heating radiators. Well, then consider the main types in more detail.
| Types of radiators | Pressure limits: working (Rb), test pressure testing (Op), destruction (Rz), bar | Limitation chemical composition coolant by pH (hydrogen indicator) | Corrosive action: oxygen (Ok), stray currents (Bt), electrolytic pairs (Ep) | Section power at h=500 mm; t=70°С, W | Warranty, years | ||||
|---|---|---|---|---|---|---|---|---|---|
| Rb | Op | Rz | OK | Bt | Ep | ||||
| tubular or panel steel | 6÷10 | 15 | 18:25 | 6.5÷9 | Yes | Yes | weak | 85 | 1 |
| cast iron type MS÷140 | 10÷12 | 12÷15 | 20÷25 | 6.5÷9 | No | No | No | 160 | 10 |
| aluminum | 10÷15 | 15:30 | 30÷50 | 7÷8 | No | Yes | Yes | 175÷199 | 3÷10 |
| bimetallic | 35 | 50 | 75 | 6.5÷9 | Yes | Yes | weak | 199 | 3÷10 |
| anodized aluminum | 15:20 | 25÷75 | 100 | 6.5÷9 | No | No | No | 216,3 | 30 |
Types of heating batteries and their main characteristics
Cast iron radiators
Cast iron radiators are "long-lived", but do not lose their relevance today, especially since they acquire an elegant appearance and improved performance. Batteries of domestic and foreign production are on sale, and there are certain differences between them - about them a little later.
- Batteries made of this material have not lost their demand, despite the fact that other, more modern heating devices have appeared, primarily due to the technical characteristics of cast iron. It is not subject to corrosion, radiators are not afraid of water hammer, as they have fairly thick walls. Another advantage of cast iron over other materials from which radiators are made today is its high heat capacity, that is, the ability to maintain temperature for a long time, even when external heating is turned off.
- It is also positive that cast-iron batteries will function perfectly not only in an autonomous system with a high-quality coolant and controlled pressure, but also in a central heating system. True, it is worth immediately making a reservation about that. That it is undesirable to install them in autonomous systems that work with electric boilers - operation can turn out to be too expensive in terms of high power consumption.
- Cast iron radiators, for example, which are quite suitable for installation in an autonomous open-type heating system, where the coolant is inevitably saturated with oxygen. For cast iron, this is not scary - the material is not subject to oxygen corrosion.
- The thick walls of cast iron heaters not only keep the temperature of the coolant longer, but also increase the resistance of the batteries to abrasive wear.
- If the old batteries had one standard size range, and for the proper heating of the room it was necessary to select a radiator exclusively by varying the number of sections, today devices with different power parameters are produced. This expands the possibilities of a comprehensive selection of the right radiators, both in terms of the required power and the design of the premises.
- In order to install old cast-iron batteries, it was necessary to drive brackets into the wall, which means damaging its finish. Modern batteries are produced both in a hinged version and in a floor version, with reliable legs. The latter are simply installed on the floor near the walls, and connected to the heating circuits.
- Many modern models of cast iron radiators do not have to be periodically painted, as was the case with older battery options. They go on sale ready for installation, and already have a treated and painted surface, which does not need to be refreshed with a layer of paint annually. To care for these devices, you only need a damp, soft cloth, which is used to brush off or wipe off dust. You can also notice that the absolutely smooth surfaces of modern batteries are fundamentally different from the rough sections of the old model, so dust is practically not collected on them.
- Some cast-iron battery models are produced in very original design styles, which allows them to fit into any interior, even modern or retro. It is possible to choose heating devices in such a way that they will also become a decorative element of the design of the room, complementing and transforming it.
The main disadvantage of all radiators made of cast iron is their heavy weight. If you plan to hang them on brackets, the latter must be securely fixed in the wall - and not every partition is even able to withstand such a load. In addition, to lift and hang such a battery, you will definitely need an assistant.
Cast iron radiators of domestic and foreign manufacturers
On the Russian market, you can find both domestic and imported cast-iron radiators. European countries — Germany, Italy, the Czech Republic, Spain and others — present their products in a fairly large assortment. These products differ significantly from Russian ones in some characteristics:
- Unlike traditional domestic MS-140 or MS-90, foreign products have smoother, well-finished outer surfaces, and the original retro versions are decorated with molding in the form of floral relief ornaments.
- Imported products have a higher thermal power with small dimensions. So, for example, with the same heat transfer, the volume of filling the domestic battery section with a coolant is 1.3 liters, and the Czech production is only 0.8 liters. Therefore, this option will be more compact and accurate.
- Foreign products have internal perfectly smooth cavities, which contributes to the normal circulation of the coolant, without high hydraulic resistance, and prevents the formation of deposits of dirt and scale on the walls of the channels.
- Domestic batteries go on sale with primed surfaces and require painting, while imported ones are immediately ready for installation.
- The "minus" of foreign products is their very high cost, several times higher than the price of Russian-made batteries.
In fairness, it must be said that the production of more modern cast-iron batteries is gradually being established in our country. In addition, excellent cast-iron radiators of European quality are also produced in neighboring Belarus at the Minsk Heating Equipment Plant.
Conclusion: for the conditions of an apartment, cast-iron radiators are quite applicable, especially when connected to a central heating system, of course, taking into account their characteristic shortcomings.
Prices for cast iron radiators
cast iron radiator
Steel radiators
Modern steel radiators differ both in their construction and design. They are usually made in the form of panels or pipes arranged together, which is why such heaters are called tubular or panel. To understand their design and characteristics, you need to consider each of the types of batteries separately.
Panel steel radiators
Panel radiators consist of two steel sheets, which are given the desired shape by stamping. Then the blanks are welded into a hollow panel and, if necessary, equipped with special convector elements - in order to create a vertical directional movement of heated air, thereby forming a kind of thermal curtain from the cold coming from the window.
The coloring of such a battery occurs after the assembly of all elements into a common structure. The paint is applied using a special technology that ensures the strength and durability of the coating.
Prices for heating radiators ELSEN
Heating radiators ELSEN
In order for steel batteries to last as long as possible, the protective paint layer must be applied evenly. Therefore, when purchasing this type of device, special attention should be paid to the coating, since steel sheets can be susceptible to corrosion in damaged areas that are not protected by paint.
Panel batteries are designed for a coolant having a temperature of up to 85 ÷ 95 degrees, as well as for a standard pressure created in a centralized heating system.
The number of panels and heat exchange convector "accordions" can be different
This type of heating device usually has its own classification, which is based on the number of panels and convection heat exchangers in the finished assembly. An example is shown in the table:
Panel radiators can vary quite a lot not only in the number of panels, that is, in the depth of the structure, but also in other dimensions. Their length can be from 400 to 3000 mm, and the height usually varies from 200 to 900 mm.
In addition, panel batteries are produced with a bottom or side connection. The choice for this parameter is made depending on how the piping of the heating circuit is located.
Panel heating radiators have their advantages and disadvantages, which you should definitely familiarize yourself with before making a decision to purchase.
The positive aspects of panel radiators include the following:
- Relative ease of installation of devices in the heating circuit. The radiator has a one-piece construction, and it does not need to be assembled from separate sections.
- Panel radiators tend to warm up quickly. A sufficiently large area of the panel itself and the fins of heat exchangers-convectors contributes to efficient heat transfer, so the room warms up quickly enough.
- The compact size and aesthetic appearance make it possible to fit such a radiator into almost any interior.
- To fill an autonomous system with panel radiators installed in it, a fairly small amount of coolant is required.
Panel radiators also have their own significant disadvantages, which include the following:
- They are reliable at normal pressure in the central heating system, but are not designed for powerful water hammer, which often occurs when the system is filled with coolant before the start of the heating season. Panels may simply not withstand such a test. Therefore, if they are selected for installation in an apartment, it is necessary to use a special device to protect against excessive intra-system pressure - a reducer that will smooth out the load on the panels by taking the blow.
- The inner surfaces of the panel often do not have an anti-corrosion coating, although they are in direct contact with the coolant, and the durability of their use will depend on its quality. As you know, in the central heating system, the coolant is often not of high quality, and may contain very active impurities that contribute to metal corrosion. Therefore, as a rule, the panel type of the radiator cannot be used in such conditions for a long time, since steel unprotected surfaces are not resistant to aggressive environments.
Based on the above considerations, conclusion that the installation of panel steel radiators in apartment conditions with a central heating system is undesirable.
Tubular steel batteries
Unlike panel radiators, tubular ones consist of several sections, but "tightly" fastened together by welding. Therefore, they also do not need to be assembled, since they are purchased ready-made, representing a complete structure from a certain number of sections. Therefore, in order for heating to be efficient, it is necessary to calculate the required total power required for a specific area before purchasing such radiators, and from these considerations select the optimal model.
Batteries of this type are designed for an internal system pressure of 8 ÷ 10 atmospheres, so it would be useful to install a reducer, since water hammer when filling the central system with a coolant can lead to emergency situations.
Steel radiators have a wall thickness of only 1 ÷ 1.5 mm, so the coolant quickly heats them up, and the metal begins to transfer heat into the room. However, it should be noted that thin walls are also a weak side of such batteries, as they are easily susceptible to mechanical damage.
Tubular structures are more resistant to the aggressive environment of low-quality coolant than panel structures, since they usually have an internal protective coating of polymeric materials. Therefore, they are less exposed to corrosive influences and, accordingly, with other normal parameters of the system, they can last longer.
Tubular radiators can have a variety of, sometimes even "unexpected" dimensions. So, their height is from 200 to 2500 mm, depth - from 100 to 250 mm, and the width can vary widely depending on the need for total thermal power.
Tubular radiators are produced in a wide variety of design solutions, they can be wall and floor. Moreover, they are installed both near the wall or window, and even in the middle of the room. For installation in the center of the room, radiators are used that have a height equal to the height of the ceiling, taking into account the supporting legs. This option is used when the room needs not only to be heated, but also divided into separate zones.
- Some battery designs are equipped with wooden panels mounted on top, and, in fact, are a bench designed for different needs, depending on the location of the heater. For example, if it is installed in the hallway, it can be used as a shoe stool, as it will be convenient to sit on it. In the evening, shoes can be placed on a wooden surface to dry.
Since tubular batteries are produced in various colors and in various, even sometimes unexpected design delights, they can be matched to any interior design.
The disadvantages of batteries with a tubular design include only two main points, but quite serious, negatively affecting the efficiency and safety of the apartment heating system:
- Sufficiently low heat transfer, leading to an increase in energy costs if the batteries are installed in an autonomous heating system. The design heats up quickly, but it also tends to cool down quickly, so the heating boiler will work almost constantly, with short interruptions. The conclusion is that it is unprofitable to install them in the autonomous heating system of a private house.
- The elements of the radiator are connected by welding, the seams of which will become a weak point in the event of water hammer. Therefore, mounting them in an apartment circuit connected to a central heating system is also undesirable. If they are nevertheless chosen due to a suitable design, then it is necessary to install a gearbox that will take the load from a sharp pressure drop on itself.
Conclusion from what has been said : Tubular steel batteries, despite their visual appeal, are far from ideal. The installation of such radiators in an autonomous system will lead to unnecessary energy costs, and in the central heating system - to an increased risk of accidents.
Aluminum radiators
Aluminum batteries have an aesthetic appearance, but it must be said right away that, according to their technical characteristics, they are not very well suited for installation in a central heating system.
For autonomous heating systems, the best choice is high-quality aluminum radiators
Aluminum radiators are very popular among homeowners with autonomous heating due to their elegant appearance and high heat output. In an autonomous system with a stable pressure and a high-quality coolant, aluminum heaters can last from 15 to 25 years - these are the periods that manufacturers usually indicate in the technical data sheet as the minimum.
Radiators are designed for internal system pressure up to 15 atmospheres and coolant temperature of 80÷90 degrees. They have excellent power (heat dissipation), reaching up to 200 ÷ 210 W, and at the same time, the volume of each of the battery sections is only 450 ml with a weight of 1 ÷ 1.5 kg. The sections are fastened with the help of a threaded coupling.
Aluminum batteries can vary in size. So, the standard distance between the lower and upper axis of the radiator can be 500, 350 and 200 mm. If desired, you can find or order devices with a non-standard distance of 700 or more millimeters.
The drawing shows a 500 mm center connection with a total stack height of 573 mm.
This type of battery is made from an alloy of aluminum and silicon additives that give the metal additional strength, but in two different ways - extrusion and casting.
Prices for aluminum radiators ROMMER AI
Aluminum radiators ROMMER AI
When using casting technology for the manufacture of parts, each section of the battery is cast separately by filling a special mold with a prepared alloy. This manufacturing technique guarantees the tightness of each section.
- Batteries produced by casting technology are designed for pressure in the heating system up to 16 atmospheres. During factory tests (pressure testing), the coolant is usually supplied under a higher load, which reaches up to 25 atmospheres, which indicates that the manufacturer provides consumers with an additional margin of safety for their products. Molded heatsinks come in a variety of shapes, but generally they have a smooth outer surface that allows for higher heat dissipation.
- The second, manufacturing method, according to extrusion technology, consists in forming sections by forcing the melt through special nozzles that set the configuration of the products. As a rule, the so-called secondary aluminum, a product of scrap processing, acts as a raw material here. The quality of the metal is certainly worse, since the composition of the alloy is not so balanced, the presence of impurities is not excluded. Such aluminum turns out to be more brittle, more prone to oxygen corrosion.
The finished sections are assembled into a common structure, which during operation cannot be increased by extension or reduced - a ready-assembled battery comes from the factory, which is a finished product. Such radiators also cannot be repaired - this should be taken into account when planning a purchase. Conditions of high pressure in the system, low-quality coolant, the likelihood of water hammer - clearly not for such radiators. True, the price of such heat-exchange devices is significantly lower than for cast ones.
- Another type of aluminum radiators is produced, but already with a high degree of purification of the feedstock and with anodic oxidation of surfaces. They are often referred to as anodic. During the manufacture of the original alloy, aluminum changes its structure several times - this process is carried out to achieve maximum resistance of the material to any type of corrosion. Therefore, such batteries are not afraid of the aggressive environment of any coolant.
Anode radiator sections are manufactured using injection molding technology and then assembled using threaded couplings and reliable seals. Such products can, if necessary, be disassembled, for example, to remove a damaged section, or extended to obtain the required total heat output.
The internal surfaces of the batteries, made of anodized aluminum, are perfectly smooth, which contributes to the unhindered circulation of the coolant. The working pressure of such radiators is much higher than that of conventional aluminum ones, and can reach up to 20 ÷ 25 atmospheres.
Externally, anode batteries do not differ from ordinary aluminum ones, but their cost is much higher. Therefore, when purchasing this version of radiators, it is imperative to check the product passport, which is always attached to such high-quality products.
All aluminum batteries have common "pros" and "cons", which you also need to know if you decide to choose this type for installation in an apartment.
So, the advantages of aluminum radiators include the following qualities:
- High heat dissipation.
- Light weight, which greatly simplifies the stages of transportation and installation work.
- Variety of sizes to choose from.
- Aesthetic appearance that allows you to "introduce" such radiators into the interior of any style.
- Relative safety of operation. When hitting even and smooth aluminum surfaces, it is more difficult to get injured than, for example, angular cast-iron batteries - this quality is especially important if small children live in the apartment.
- Aluminum batteries are excellent "friends" with thermostatic devices - this allows you to accurately control the temperature. This quality is especially important in the event that an autonomous heating system is created in the apartment, since the devices for thermoregulation of radiators contribute to saving on energy consumption.
The negative aspects of these heating devices are the following factors:
- High risk of gas formation in the internal channels of the structure (applies to conventional, non-anodized aluminum batteries, cast or extruded).
- Possible leakage at the connection of sections without the possibility of repair - for extruded radiators made of recycled aluminum.
- Heat concentration in the region of the fins of the device elements.
Some possible problems that arise during the operation of aluminum batteries can be bypassed. So, for example, in order to prevent gases from accumulating inside the structure, it is recommended to install a special air vent for each radiator.
General conclusion: If aluminum batteries will be installed in an apartment with an autonomous heating system, then any will do, based on the financial capabilities of the owners and taking into account all the above disadvantages. If the apartment is connected to central heating networks, it is recommended to choose only radiators made of anodized aluminum - it is more resistant to aggressive environments, high temperatures, and pressure drops in the system.
Bimetal radiators
Bimetallic radiators are currently the most popular of all types of modern batteries, second only to traditional cast iron batteries.
These heaters are produced according to the combined principle - they are assembled from parts made from two different materials, which, in fact, is clear from the name. Thus, the outer part of the battery is made of aluminum, which has maximum heat transfer, and the internal channels for the circulation of the coolant are made of high-quality steel alloy that is not subject to corrosion. Aluminum external surfaces have a protective enamel coating, which gives the radiators an aesthetic appearance.
Of course, if you plan to purchase a non-separable radiator, which is a one-piece structure, then divide by the specific power of the section Pc- is not necessary, that is, this part is simply excluded from the formula. The resulting value will show how much total radiator power is needed for this room.
However, these formulas will be valid only for standard average conditions. Therefore, when calculating the radiator by the area or volume of the room, it is important to take into account the correction factors that are determined by the minimum winter temperature in the region of residence, the location of the room, the quality of the wall insulation, the number and type of windows, the presence of a door to the street or balcony. Moreover, even the location of the batteries and the scheme of their insertion into the heating circuit can be of considerable importance for calculating the thermal power.
There is probably no point in listing all the correction factors and giving a rather cumbersome calculation formula in this article. It is better to invite the reader to use a convenient calculator, which already contains the main dependencies.
Calculator for calculating the required heat output of heating radiators
For the calculation, it will be enough to indicate the requested data. The calculator will allow you to determine the number of sections of the selected type of radiator. If the calculation is made only to determine the total thermal power required for high-quality heating of the room (for example, to select non-separable models of steel or aluminum batteries), then the field with the requested specific nameplate power of one section is left blank.
Replacing batteries that have ceased to perform their functions is an important part of repairing the heating system. Therefore, their choice should be taken with all seriousness and responsibility. And in order not to make a mistake when buying and choose the option that best suits the individual characteristics of your home, you need to determine for yourself which heating radiators are best for an apartment. Moreover, the range of products of this type, presented in specialized stores, is quite wide.
Modern industry produces several types of heating batteries made of various materials and having a specific set of characteristics. These include:
Cast iron sectional radiators
Their advantages:
- Reliability and durability. The average life of radiators is about 50 years.
- Undemanding to the quality of the coolant. Therefore, until now they are installed in buildings with a gravitational heating system (acting on the principle of natural circulation).
- Sufficient thermal conductivity and high inertia. They do not warm up very quickly, but retain heat well (for systems with automatic control, high inertia is a disadvantage and for this reason cast-iron radiators are not used in this case).
- Relatively low price, averaging 2000-3500 rubles for 4-7 sections (with the exception of design options, the cost of which starts at 5000 rubles).
Read in a separate article: and his example.
Disadvantages of cast iron radiators:
- Fragility, insufficient resistance to powerful.
- The need for periodic touch-up.
- Due to the roughness of the inner walls of the radiator sections, impurities can linger in them, clogging the coolant channels, which can lead to a decrease in heat transfer.
- Large weight and large required volume of coolant.
Steel radiators
Although this type of heating batteries is also found in our country, many residents of the United States, in response to the question: “Which heating radiators are better to install in an apartment?” they will answer without the slightest hesitation: "Only steel panel." And in some ways they will be right.
The design of these heaters consists of two sheets of high-carbon steel with stamped channels designed for the movement of the coolant. To provide additional resistance to corrosion, the outer surface of the batteries is degreased and coated with a phosphate compound. The coating material is powder enamel.
Advantages of steel radiators:
- Diverse range of sizes.
- Good heat dissipation.
- Ability to work with a small amount of coolant.
Flaws:
- Low operating pressure (no more than 6-10 atm.). With a hydraulic shock with a force of 13 atm. sections may break.
- The lack of protection of the inner walls from the effects of water, leading to the gradual destruction of devices.
- The need to use shut-off valves on the supply and return pipelines.
- The need to remove dust from the back of the device.
- The operating period is on average about 10 years.
Please note: Tubular steel radiators are of better quality and reliability compared to panel ones. The range of their working pressure can be from 10 to 15 atm. In addition, they have a more spectacular, original design and more durable painting.
If you are thinking about which radiators to give preference to - steel tubular or panel, feel free to choose the first option. Aluminum radiators
Another popular answer to the question: “Which radiators are better to choose for an apartment?” are, which are sectional-type structures that can be independently assembled, taking into account the characteristics and area of \u200b\u200bthe heated room, in order to heat it efficiently and efficiently.
Advantages:
- The ability of such radiators to quickly take heat from the coolant and heat the premises as quickly as possible.
- Light weight and compact dimensions.
- High thermal power (about 190 W).
- Attractive and discreet design.
- Working pressure of modern aluminum radiators: 16-20 atmospheres.
- Low cost (the price of one section - starting from 120 rubles).
Disadvantages of aluminum radiators:
- Rapid cooling when the system is turned off.
- Susceptibility to corrosion and exactingness to the pH of the coolant (the maximum allowable indicator is up to 7.5 units).
Important: When using aluminum radiators, it is strictly forbidden to install copper or brass fittings together with them, which are antagonists of this metal. As a result of the resulting reaction, the batteries will begin to corrode from the inside, which will lead to their rapid deterioration.
Bimetal radiators
Heating devices of this type consist of a steel pipeline and aluminum fins. Bimetal radiators are often used in apartments connected to central heating systems.
Their advantages:
- High heat transfer coefficient of radiators.
- The unique margin of safety of radiators, which guarantees reliable protection against water hammer. (functional pressure in such a device is 35 atm., test - up to 52.5 atm.).
- Inertness to the composition of the coolant.
- Sufficiently long service life (about 20-25 years).
- Ability to work with a small amount of coolant.
Disadvantages of bimetallic radiators:
- Susceptibility to clogging of the collectors due to the narrow cross-section of the inter-collector tubes.
- Sensitivity to an increase in the amount of oxygen in the composition of the coolant.
- The rather high cost of radiators (the price of one section is about 450 rubles).
Criteria for choosing radiators
To decide which heating radiator to choose for an apartment, it is necessary to take into account a number of factors that have a direct impact on the efficiency of these devices in the future. It:
- Functional pressure declared by the manufacturer. This indicator must necessarily exceed the working and test pressure in the system. Example: In houses of the old layout, consisting of five floors, the average operating pressure in the heating system is about 5-8 atm. However, new skyscrapers are heated under a pressure of 10-12 atm.
- The ability of radiators to withstand water hammer. The problems that have arisen in the heating system may be indicated by clicks and buzzing in the batteries. In this case, it is better to contact the utility company to check the pressure level in the system.
- Resistance to low quality coolant. For multi-apartment houses, it is better to use batteries with a special protective layer in their inner part. In addition, their walls must be of sufficient thickness so that the particles of sand and pebbles present in the coolants do not rub them during use.
- Heat transfer level. This indicator will determine how quickly and efficiently the radiators used will heat the rooms.
- Design solution. The times of ugly cast-iron "monsters" remained in the Soviet past. Modern heating radiators are distinguished by external attractiveness and ergonomics. So, when deciding which heating radiators to install at home, choosing the option that best fits into the architecture of any room is not difficult at all.
- Life time. One of the main criteria when choosing radiators.
Calculation of power, number of sections
Before choosing a heating battery for an apartment, it is necessary to calculate how many sections should be installed in each particular room and determine the power and pressure indicator of this device. This is done as follows:
Choosing the power of the radiator
In this case, the following points must be taken into account:
- Type of building (brick or panel).
- The area of the heated room.
- number of windows.
- The presence of external walls.
- Type of glazing in the apartment (double-glazed windows or wooden windows).
According to the standard, in a room with a ceiling height of 3 m, which has one window with a wooden frame and one door, a radiator with a power of 90-125 W per 1 m 2 is usually placed.
Useful information: To select the battery of optimal power for the room for ease of calculation, you need to multiply its area by 100 watts.
If there is one window and two external walls, this figure should be increased by 20%.
In the presence of two windows and two external walls - by 30%.
If the window is located on the north or northeast side: + 10%.
When placing a radiator in a niche: + 5%.
With a solid screen on the battery: + 15%.
Decide on the number of sections
The average power of a section of radiators of various types:
There is another option for calculating how to choose the number of sections of the heating battery so that it is comfortable in the heated room, which is considered more accurate. This calculation is also made taking into account their heat transfer. At the same time, not the area of \u200b\u200bthe room is used as a unit of space, but its “cubic capacity”, that is, the volume of air mass that is to be heated. Each room is calculated separately: first, the power of the heater is selected, and then the number of its sections is calculated.
Practical example:
Considering that 39-41 W of energy is needed to heat 1 m 3 of the air space of a living room, in order to heat a room with an area of 10 m 2, with a ceiling height of 3.0 m, 1230 W is needed.
Decryption:
- We calculate the cubic capacity: 3 x 10 \u003d 30 m 3.
- We determine the energy consumption: 41 x 30 \u003d 1230 watts.
Let's agree that each section of a modern heating battery produces approximately 200 W of energy. That is, to calculate the optimal number of sections, you need 1230:200 = 6.15 sections. Rounding up. It turns out that in a room with a cubic capacity of 30 m 3 you need to install a radiator with 7 sections.
Useful information: When installing a battery in a corner-type room, a heat loss coefficient (1.1-1.3) is added to the formula for calculating the number of sections, the value of which must correspond to the climatic zone. The result will be: 1230 1.3: 200 = 7.995. That is, a radiator of 8 sections is suitable for such a room.
Dealing with working pressure
When purchasing heating radiators, you need to take into account the indicator of their working pressure, which should be higher than the pressure of the heating system at home. This is especially important when conducting hydraulic tests, when the load on the system is particularly intense..html
Features of central and autonomous heating systems
To figure out how to choose the right heating batteries for an apartment, it is important to take into account the features of the central heating system and its differences from an autonomous heating system operating in a private house.
Aluminum With centralized heating, the heat from the coolant through the pipeline enters the apartment from an external heat source (boiler or local thermal power plant).
The advantages of this type of heating system:
- Low cost of installation and maintenance.
- The ability to work on inexpensive fuel (for this purpose, coal, gas, wood waste, etc. can be used in boiler rooms).
- The absence of harmful combustion products during the operation of the system.
Flaws:
- The presence of chemically active impurities in the coolant, leading to corrosion of pipes and radiators.
- The presence of small pebbles and grains of sand in the circulating fluid, which contribute to the abrasion of the working elements of the battery.
- Instability of operating temperature (it may fluctuate during the heating season).
- Fairly high pressure.
- The possibility of water hammer - powerful pressure surges in the system.
Benefits of an autonomous system:
- Independence.
- Possibility of regulation of heating.
- Possibility of year-round provision of hot water at home (when using a double-circuit heating boiler).
- Payment savings.
- Low pressure in the system and the absence of water hammer.
- Higher quality of the heat carrier in comparison with the centralized system.
Flaws:
- Difficulty in installation.
- Additional costs for repairs and maintenance.
- The need for permits when installing such a system in an urban-type apartment.
Thus, the main factors based on which it is possible to answer the question of which heating radiators are best for an apartment are the price, power and reliability of these devices, as well as their compliance with the requirements in each case. And speaking of which manufacturer of heating radiators is the best, we recommend paying attention to well-established manufacturers such as Sira, Global (Italy), Rifar (Russia).
Therefore, for an apartment in a multi-storey building, it is recommended to choose batteries that are able to withstand high pressure, water hammer and aggressive coolant - bimetallic radiators meet all these criteria. For houses of an old building with a small number of storeys, where the pressure is not so high, cast-iron radiators are also suitable.
And for a private house, you can consider installing aluminum batteries, since their cost is quite acceptable, heat transfer is high, the design is modern, plus, they can be used for systems with temperature control.
When restoring a heating system or installing a new one, a natural question arises - which radiators to choose so that they are not only efficient and heat the home well, but also fit perfectly into the interior. Despite the fact that the appearance of heating elements is important, first of all, you should pay attention to the technical characteristics, such as operating pressure, temperature limit, as well as the material from which the batteries are made. However, which heating radiators for an apartment is better to choose among all the variety on the heating systems market? Let's try to understand the main criteria for choosing heaters.
Read in the article:
Which is better to choose a heating radiator for an apartment
The water coming from the centralized water supply to the heating system goes a long way, carrying various chemical and mechanical impurities, which slowly but surely lead to the destruction of pipes and heating elements. Not the last role in the failure of the radiator is played by frequent water hammer, which causes the devices to burst and leak, pouring hot water all around. Therefore, before choosing heating radiators for an apartment, you need to study the main criteria that high-quality and efficient heating devices must meet.
What you should pay attention to first of all is the metal from which the radiator is made, in particular, its physical and chemical parameters. The battery must withstand a pressure that is 1.5 times greater than what is created in the heating circuit. For example, in Soviet houses this figure does not exceed 5-8 atm., While in the heating circuit of modern high-rise buildings it is 12-15 atm.
The market offers a huge selection of radiators of any color, configuration and materials. Also, the metal from which the heating battery is made must be resistant to sudden pressure surges in the system, to the so-called "water hammer". For your information, if it is noticed that clicks and rumble are heard in the pipes, then it is better to contact the public utilities, since this is a sure sign that not everything is in order with the pressure and it is better to immediately prevent the possibility of an accident.
Before choosing a heating battery-radiator, it should be borne in mind that the water in our plumbing is full of various chemical compounds and mechanical particles, so the metal used for the production of heating devices must be able to withstand corrosion and other damage.
An indicator of efficiency is heat transfer. Accordingly, if you want the room to be warm in winter, you must choose heating radiators that have a high heat output.
Terms of operation. Everything is clear here, because the larger it is, the less often you will have to change the heating batteries, which means that there is an opportunity to save significant money and effort.
The design of the radiator is very important, because the heater must harmoniously fit into the interior of the room. A huge range of heating appliances on the market allows you to purchase batteries for every taste and budget, but at the same time makes it difficult to choose.
So, before choosing heating batteries for an apartment, you need to weigh all the pros and cons, and only then make a purchase and proceed with their installation.
The main types of heating radiators for an apartment
As we have already understood, the choice of radiators is not an easy task, and in order to make your task easier, you first need to learn a little about the types of heating batteries in the apartments of modern houses.
Advantages and disadvantages of cast iron radiators
Nondescript and massive cast-iron radiators are familiar to the older generation since the existence of the USSR. Modern cast iron radiators look neater and more elegant. Like everything in this world, a cast iron radiator, the price of which varies depending on the model and manufacturer, has its advantages and disadvantages.
The advantages should include:
- long service life, which is over 50 years;
- resistance to corrosion;
- undemanding to the purity of the coolant;
- long-term preservation of heat, in cases of shutdown of the heating system;
- acceptable cost.
The disadvantages are that cast-iron batteries heat up for a long time, are heavy, hard to install and practically not protected from water hammer.
General technical characteristics of cast-iron heating radiators MS-140-500
The standard section has a volume of 4 liters and a weight of 7.5 kg. The heating area is 0.23 m 2 . Heating occurs due to convection currents (no more than 20%), and the rest is due to radiation. That is why cast iron batteries are mounted under the windows.
Heating radiators made of steel
Steel heating radiators are available in two versions - panel and tubular. Schematically, panel batteries look like two steel panels, 1.2 mm thick, having stamped channels for the coolant and welded together. For greater efficiency of the radiator, 2-3 panels are connected in parallel to each other. As a result, such a steel three-panel battery, the size of a cast-iron counterpart, weighs almost the same, but with a thickness of 160 mm. even exceeds it. Having decided to buy steel heating radiators for your apartment, you need to take into account that the indicators of panel batteries, in terms of heat transfer, are no better than models made of cast iron.
Among the positive aspects of panel radiators, it is worth noting:
- Efficiency up to 77%;
- high heat transfer;
- environmental Safety;
- low cost.
The disadvantages, the owners of steel panel heating radiators, include:
- susceptibility to corrosion;
- inexpediency of installation in high-rise buildings due to the high risk of water hammer;
- the convection inherent in this type of battery contributes to the formation of drafts.
The consumer's interest in tubular steel heating radiators is more caused by a variety of shapes, which allows this heater to fit into almost any interior. Tubular batteries are stronger than panel ones due to 1.5 mm wall thickness and can withstand up to 16 atm. For this reason, steel radiators are installed only in houses with autonomous heating.
The advantages of this type of battery are:
- high working pressure;
- greater efficiency compared to panel counterparts;
- corrosion protection.
In principle, when comparing panel and tubular radiators, it is worth noting that their strengths and weaknesses are almost the same. However, having the ability to withstand higher operating pressures, tubular steel radiators are much more expensive than panel counterparts.
Aluminum radiators
Heating radiators are also produced in two modifications - cast and extrusion. This nuance must be taken into account when deciding which aluminum radiator to choose for your apartment.
Sections of cast batteries are made individually from an aluminum-silicon alloy (silumin). Sewing takes place at elevated pressure, which makes it possible to obtain sections of various shapes that can withstand 6-16 atm. For strength, the walls of the battery are made thick, and for the free circulation of the coolant, expanded channels for water are created. Cast sections can be combined into a single battery
Elements of extruded aluminum batteries are made separately by extrusion and then joined together. This method is cheap, but in such a radiator you cannot remove or add a section.
Structurally, aluminum batteries are more perfect than their cast-iron counterparts. The aluminum section has a depth of 110 mm. against 140, the heating area is 0.4 m 2, and the volume is 0.5 l. Heat transfer by convection and radiation is approximately the same - almost 50% each. When adding new sections, the heating area increases to 0.5 m 2, which increases the share of the convection component to 60%. The heat transfer indicators of an aluminum heating radiator are in the table presented after the types of batteries.
Positive characteristics of aluminum heating radiators:
The disadvantages are:
- short service life;
- susceptibility to corrosion;
- vulnerability to water hammer;
- tendency to leak.
And we will complete the list of advantages and disadvantages with a rating of an aluminum heating radiator.
| A photo | Manufacturer | Model and dimensions of 1 element (W/H/D), mm. | Heat output of 1 battery cell, W | Approximate cost of 1 section, rub. |
|---|---|---|---|---|
| Thermal (Russia) | Standard Plus 500 (79/531/72) | 198 | From 460 | |
| Oasis (Russia) | Al 500/80 (79/531/72) | 170 | From 480 | |
| Sira | ALICE ROYAL 95/500 (80/580/95) | 190 | From 580 | |
| Global | ISEO 500 (80/582/80) | 180 | From 800 | |
| Royal Thermo | Indigo 500 (80/591/100) | 185 | From 670 |
Bimetallic batteries: pros and cons
The design of these heaters successfully combines the strength of steel and the thermal conductivity of aluminum. Bimetallic radiators are able to withstand pressure up to 35 atm., and well resist water hammer. When deciding which bimetallic or other material heating batteries are best for an apartment, it should be taken into account that radiators made of two materials can be connected to the heating system in several ways to ensure maximum efficiency.
In the image below, it is visible in a section that clearly shows the device of this heater.
The advantages of bimetallic batteries include the following:
- high level of heat transfer;
- resistance to hydraulic shocks;
- for normal operation, a small amount of coolant is required;
- ease of installation;
- attractive appearance.
Among the few disadvantages:
- lower heat transfer compared to aluminum counterparts;
- high price.
The above heat transfer table of a bimetallic heating radiator and batteries made of other materials will help determine the choice of the desired design.
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Technical characteristics, advantages and disadvantages, connection methods, criteria for the right choice, an overview of companies, do-it-yourself installation nuances - read in the publication.
In principle, we have dealt with the types and brief characteristics of heating radiators, and now it is worth familiarizing yourself with the basic calculations of the required number of sections, heat transfer and other characteristics.
How to calculate the required number of radiator sections
When reconstructing or creating a new heating system, in order not to suffer from the cold in a poorly heated room, you first need to make some calculations that will allow you to select and install effective heating devices. To select the necessary heating devices, as we have already found out, you need to know the material from which they are made, their resistance to corrosion, the heat transfer of a heating radiator, the table was given above, the number of sections and much more. The required number of heating radiators is calculated in two ways - by the volume of the room or by its area. It is also necessary to take into account the expected pressure in the central heating battery.
Basic calculations for determining the number of sections and thermal power
Area calculation
It is believed that in order to compensate for the heat losses of the building and create a comfortable temperature regime for a person, it is required to provide a thermal power within 100 W / m 2. You can use a calculator to determine the required number of heating radiator sections or make simpler calculations using the formula
N = S × 100 / Pc, where
- N - the number of heating elements of the battery;
- S - the area of the room;
- PC – thermal power of one element of the heating structure (data are indicated in the technical data sheet of the battery).
Volume calculation
To make a more accurate calculation of the number of sections of the heating radiator, they resort to calculating the volume of the room that will be heated. Moreover, for a brick house, the power of the heating system should be 34 W / m 2, and for a panel house - 41 W / m 2. Calculations are made using almost the same formula as above, but slightly modified:
N = S × h × 34(41) / Pc , where
- h - ceiling height.
Of course, when deciding to purchase a one-piece non-separable battery, there is no need to divide by the thermal power of 1 radiator element in calculations. Then the value obtained will mean the total power of the heating battery, which is required for a particular room.
It is immediately worth noting that these formulas will be true only for standard average conditions. For this reason, when making calculations by volume or area, it is necessary to take into account the correction factors determined by the minimum winter temperature prevailing in the region of residence, the location of the room, the degree of insulation of the walls, the number and type of windows, and the location of the doors. Even the layout of the installation and the location of the radiators can play a big role in calculating the heat output of the battery.
It is quite difficult to list all this in one article, and therefore it is best to use a special calculator.
Calculator for calculating the required heat output of heating radiators
The long-term operation of the entire system and its efficiency completely depend on the correct selection of batteries. Such equipment is subject to increased requirements, especially when used in an apartment. In multi-apartment buildings, heating is most often tied to a centralized scheme, which increases the risk of water hammer. Which is better for an apartment will be prompted by an analysis of individual models and equipment characteristics.
Read in the article
Heating radiators: which is better for an apartment and the choice of type
When deciding which heating radiators are best placed in an apartment, you need to learn more about the capabilities of the heating system in multi-apartment buildings. At the same time, there is no need to equip and monitor the operation of the equipment, controlling the entire process. moves from one device to another, giving off heat through the surface of the radiator.
Such a system has various problems. The water in the batteries often changes temperature, and there are also pressure drops. Of particular danger is a water hammer with a battery breakthrough.
When choosing heating devices, you should pay attention to the following criteria:
- material of manufacture;
- the ability of the structure to withstand a pressure of about 12-15 atmospheres;
- the material must be safe and resistant to sudden pressure and pressure drops;
- the product should not be subject to corrosion and various damage;
- an important indicator of the product is the heat transfer of the equipment;
- operational period;
- product appearance.
When choosing radiators, it is worth considering the working and test pressure.
Useful advice! It is not worth paying more money for a margin of safety for pressure indicators, since the valves will not withstand a pressure of more than 15 kg / cm².
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Types of heating batteries in the apartment and their characteristics
Before choosing heating radiators for an apartment, let's look at the main materials of manufacture:
| Varieties of radiators | Characteristics |
| Cast iron | Pressure value from 10 to 13 bar. Section power rating - up to 160 watts. The acceptable temperature is 150 degrees. |
| Aluminum | Pressure from 7 to 17 bar. The maximum temperature of the water in the battery is 110. |
| Steel | Pressure from 6 to 15 bar. High rate of heat transfer. Corrosion protection. |
| Bimetallic | Pressure up to 50 atmospheres and temperature up to 130 degrees are provided. |
Features of cast iron radiators
Cast iron radiators were especially popular back in Soviet times. Such structures have certain advantages:
- long service life;
- resistance to corrosion;
- affordable cost;
- maintaining the temperature when the system is turned off.
Also, such designs are resistant to various types of coolants, easy installation and resistance to various chemical compounds.
The disadvantages include the fact that such products heat up for a long time, are characterized by heavy weight and do not have protection against water hammer. The choice of cast-iron types of heating radiators for an apartment is just as good as the choice of such an option for industrial buildings, country dwellings and cottages.
steel models
Steel products do not have sections, but are made as a set. Can withstand temperatures up to 120 degrees. It is believed that they are best mounted in buildings with autonomous or in small buildings. You can not use such elements in rooms with high: in bathrooms or. The steel unit must always be filled with water, which protects it from.
Deciding which heating radiators are best for an apartment and choosing this option, you can get certain advantages. Such a device warms up quickly, is characterized by increased heat transfer and has a presentable design.
Steel options are tubular and panel. The latter have the following advantages:
- excellent heat dissipation;
- environmental safety;
- low cost;
- high level of efficiency.
The disadvantages include susceptibility to corrosion, the inability to use in multi-storey buildings, and convection can provoke the appearance of drafts.
Tubular models have the following advantages:
- increased heat transfer rate;
- operating pressure from 8 to 15 bar;
- protective properties against corrosion.
The main indicators for these two types of radiators differ little. Only tubular models are more expensive due to higher values.
Aluminum products
Many are interested in how to choose an aluminum radiator for a heating battery. These instructions are of two types. Cast - are produced by casting and have wide walls. Extrusion - differ in the technology of extruding an aluminum alloy through an extruder. In such a product, you can not add sections.
The benefits include:
The disadvantages include susceptibility to corrosion, fragility and a tendency to leak. In addition, such structures do not provide protection against water hammer. Similar designs are produced by representatives of different countries. These are the Chinese companies Konner and Lammin. Russian firm Rifar and equipment from Italy from Global and Royal Thermo companies.
Note! It is important that the device has a polymer coating that allows you to extend the life of the product.
Which radiator is better aluminum or bimetallic?
When deciding which heating radiator is best for an apartment - bimetallic or aluminum, it is worth knowing their features.
A feature of the aluminum product is that it can only be purchased for private homes. It is impossible to install such equipment in production, where there are pressure surges. An aluminum radiator can be used together with a temperature controller. Exceeding the permissible pressure indicator is fraught with rupture of the battery and the appearance of internal corrosion.
Able to serve for a long period of time, as they are resistant to pressure pressure up to 50 atmospheres. These structures consist of a steel filling and aluminum fins. They warm up quickly and are characterized by an aesthetic appearance. The disadvantages include the accumulation of slag deposits inside the sections. In addition, due to the use of several material options, the heat transfer rate may decrease.
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Heating batteries radiators: prices and overview of models
Considering which heating battery is best for an apartment, it is recommended to read about models from different manufacturers. When making a purchase, you need to familiarize yourself with the certificate of conformity.
Models of the following manufacturers are popular with domestic consumers:
- Italian companies sira and global produce equipment that is well adapted to Russian heating systems;
- German company models Kermi are distinguished by powerful convection and excellent quality;
- steel tubular radiators are manufactured by a company from Sweden Zehnder . Such structures are coated with an anti-corrosion compound that protects the steel surface with any acidity;
- Rifar is a domestic manufacturer. Its products can be used in central heating systems;
- Chinese company products Smart has a low cost;
- German manufacturer Arbonia sells high-quality devices that are distinguished by modern design and durability.
How to calculate the power of radiators and the number of sections?
The acquisition of efficient, high-quality equipment must be complemented by correct calculations of the number of sections.
SNiP consists of design rules and operating standards for heating systems. With it in mind, you need to mount radiators. In order for the calculations to be effective, it is worth using the following rules:
- the maximum width of the structure should not exceed 70% of the size of the window opening;
- the product must be mounted along the center line of the window;
- the distance between the wall and the device is 3-5 cm;
- the product should rise above the floor no more than 12 cm;
- distance from the battery to the window sill -5 cm.
In some cases, for better heat transfer, the surface of the wall is covered with a special one. Such rules contribute to the free movement of air masses. For a correct calculation, you need to know the following parameters:
- room sizes;
- the number of and and windows;
- materials for building a house;
- placement of rooms relative to the cardinal points;
- technical parameters of the heating structure.
The table shows a simple calculation of the number of sections.
| Power of 1 section of the heating radiator according to the passport, W | Room area, m² | ||||||
| 10 | 12 | 14 | 16 | 18 | 20 | 22 | |
| 140 | 8 | 9 | 10 | 12 | 13 | 15 | 16 |
| 150 | 7 | 8 | 10 | 11 | 12 | 14 | 15 |
| 160 | 7 | 8 | 9 | 10 | 12 | 13 | 14 |
| 180 | 6 | 7 | 8 | 9 | 10 | 12 | 13 |
| 190 | 6 | 7 | 8 | 9 | 10 | 11 | 12 |
| 200 | 5 | 6 | 7 | 8 | 9 | 10 | 11 |