The best radiators for heating. Which heating radiators are best for an apartment: a detailed analysis of the modern market. Types of materials and design features

In the current market, saturated with varieties of heating devices from many manufacturers, it is sometimes very difficult for an ordinary homeowner who has decided to replace batteries to find suitable products for their home. Our goal is to help solve this problem and figure out which batteries are best to put in an apartment or in a private house.

Heating radiator overview

Having entered a large heating equipment store, it seems that there are countless types of heating batteries. In fact, there are only five of them:

• cast iron products;
• steel heaters;
• aluminum radiators;
• bimetallic batteries;
• electrical heating devices.

All these types of heating radiators have different technical characteristics, as well as their own advantages and disadvantages that determine the scope of their application. Let's take a closer look at each of them, and clearly define which type of device is better to put.

Cast iron radiators

This type of water heaters, well known to us from childhood, is used to this day, despite the emergence of many modern competitors, whose technical characteristics are much better. This is due to several reasons, for example, the high corrosion resistance of cast iron and the ability to work in systems with high pressure of the coolant. In addition, a tribute to tradition is important for many people and, despite any explanations, they are still convinced that cast iron batteries are the best.

This opinion is well founded, since these devices are very reliable and durable, according to these criteria, they are unmatched, since they serve from 30 to 50 years. In addition, cast iron heaters retain heat for a long time, having great massiveness and inertia. This advantage is also a disadvantage: cast-iron batteries take a long time to warm up and cool down just as long, so it is very difficult to organize automatic climate control in the room where such devices are installed.

If earlier the appearance of cast-iron batteries left much to be desired, now many companies offer cast-iron heating radiators with various powder colors or with decorative casting.

True, this improvement brought traditionally cheap heaters out of the budget category, since such products are much more expensive. The rest of their shortcomings are well known: high weight and water capacity, although recently they have been reduced to a minimum.

The good thing about cast iron batteries is that they can be installed everywhere: in an apartment, house, dacha. But it is best to use them for heating a private house, where a gravity system is organized. It itself is inertial and has a large volume of coolant flowing at a low speed. This is exactly what a massive cast iron appliance needs.

Steel batteries

This type of heater is divided into two types

• panel;
• tubular.

Panel radiators are good radiators for a private house, where the working pressure of the coolant does not exceed 3 Bar. The fact is that their design and manufacturing technology provides for operation in a system with a maximum pressure of up to 15 Bar. This is often not enough in a district heating environment, especially in high-rise buildings.

The panels have good heat dissipation, relatively low weight and size, and also have an aesthetic appearance. There are also steel radiators with bottom connection, which makes it possible to install them in apartments with individual heating and piping hidden in the floor.

In addition, among all heating devices, steel panels have the lowest cost, so they often remain the only acceptable option. Among the disadvantages are sensitivity to corrosion and a relatively short service life (up to 15 years).

When you need to put a steel radiator in a central heating system, it is better to choose a tubular type device with thick massive walls that can withstand high pressure and water hammer. Therefore, such batteries can be installed anywhere, they are reliable and durable.

Another thing is that the cost of tubular devices is quite high, while there are disadvantages similar to cast iron batteries: inertia, large capacity and considerable weight. Because of this, they are rarely installed in country houses and other buildings with an individual heating system, preferring the same heaters made of cast iron or aluminum.

Aluminum radiators

One of the most popular heating devices - sectional aluminum radiators - are distinguished by the best degree of heat transfer, quick heating and cooling, low weight and excellent appearance.

All these advantages are realized thanks to the body of the device, made of aluminum alloy. Vertical channels with a cross-section close to circular are made in it, and outside these channels are equipped with many ribs, intensively transmitting the energy of the coolant to the air in the room. In turn, the flat surfaces of the aluminum battery emit an even flow of radiant heat. The physical properties of aluminum make it possible to organize automatic regulation of the heating power, since inertia in this case is practically absent. Promotes rapid heating and small capacity (up to 0.25 liters of water in each section).

Aluminum radiators for the home are easy to assemble and install due to their simple design and low weight. They can be attached to any building structure, even plasterboard partitions. It is only necessary to correctly calculate the required number of sections for heating the room; sales representatives or online consultants of online stores will always help you with this.

As for the shortcomings, there are only two of them. The first is akin to steel panels: a low threshold for maximum operating pressure (up to 16 bar), which makes the installation of aluminum batteries in district heating systems risky. The second is the usual and electrochemical corrosion of the alloy due to the impact on it of a low-quality coolant from the central heating networks. Therefore, aluminum radiators are the best radiators for any individual heating systems, where the quality of the coolant is controlled by the homeowner himself, and the pressure in the system is controlled by the boiler automation. But in apartments with central heating, it is better to put bimetal.

Bimetallic radiators

In fact, bimetallic batteries are the same aluminum products, inside which there is a welded frame made of thick-walled steel pipes. As a result of such modernization, the disadvantages associated with the quality of the coolant and its pressure were successfully eliminated.

At the same time, heaters have a slightly lower heat transfer than purely aluminum ones, but much higher than that of steel or cast iron appliances. Therefore, in the case of centralized heat supply systems for heating, it is better to install bimetal radiators, they will serve for a long time and reliably, while giving off heat much more intensively than other types of devices. But it should be said that the cost of bimetallic batteries is significantly higher than that of aluminum ones.

Conclusion

Before drawing the line, it is worth saying a few words about products such as electric heating radiators. They are very effective and easy to install, all they need is a 220 V socket. Another thing is that the cost of electric heating turns out to be quite high, so heaters are often used as additional heat sources.

From the above, we can conclude that the choice of batteries largely depends on the type of heating system. If there is a financial opportunity, then it is better to put aluminum appliances in a private house as the most economical ones. When this is not possible, then steel panels will do, and with a gravity system, cast iron heating devices. The same applies to apartments with an individual heat source. But in centralized networks, cast iron or bimetallic batteries, as well as steel tubular ones, will be appropriate. Much of the choice depends on the homeowner's budget.

When organizing a major overhaul in a house or apartment, the list of measures for which includes the replacement or modernization of the heating system, the owner will inevitably face a problem - which heating batteries are better to choose in order to increase the comfort of living and at the same time not lose with the interior design.

Previously, such a question was usually not raised in principle - in addition to cast-iron batteries of a single model, ineffective, poorly manufactured steel convectors were only occasionally installed in new houses. Today the situation is different - radiators can differ significantly both in the material of manufacture, and in characteristics, and in appearance. Naturally, I want to install in my apartment the best of those that the budget allocated for repairs allows.

However, when choosing these devices, it must be borne in mind that not all of them may be suitable for the existing heating system. Having different performance characteristics, designed for a specific load and coolant, batteries can either disappoint the buyer with their low efficiency, or even simply do not fit the technical parameters.

In addition, in order to achieve the proper heating efficiency, it is necessary to correctly calculate and install the required number of sections in the radiators. Just execute v in all conditions and be sure to adhere to installation rules, you can get the desired result.

Currently, the most common types of radiators are: the following types of radiators are produced:

- steel, panel and tubular;

- cast iron, with both modern and retro design;

- aluminum and aluminum anodized;

- bimetallic.

To correctly determine the choice, you need to understand in more detail the characteristics, advantages and disadvantages of each type. For a start - a few "dry" numbers, which, nevertheless, can already give an initial idea. Some parameters of various types of batteries - in the table:

Abbreviations in the table:

TS- tubular steel;

Chg- cast iron;

Al- ordinary aluminum;

AA- aluminum anodized;

BM- bimetallic.

Well, now - about each of the types in more detail.

Steel radiators

They can differ both in their design and in the design solution. They can be made in the form of panels or a certain number of vertical pipes, interconnected in one common battery.

Panel steel radiators

Each panel of such a radiator is made of two metal sheets, which are formed into the desired shape by stamping and connected by welding. Then, in most of the models, the panels are equipped with convector heat exchangers, which contribute to the rapid heating of the air and the creation of a thermal upward flow. After connecting all the elements into a single structure, it is painted using a special technology.

In order for this type of radiator to serve for a long time, the color must be uniform - this parameter must be paid special attention to when buying.

Prices for panel heating radiators Lidea

panel heating radiators Lidea

Panel radiators are designed for a coolant temperature of 85 ÷ 95 degrees, and for a standard operating pressure in the central heating system (up to 10 atmospheres).

Similar batteries have your own classification, which is predetermined by the number of panels and the presence of convector plate heat exchangers between them. Each of the types is expressed by a certain two-digit number:

• Type 10 consists of only one panel;
• 11 type is one panel equipped with one convector;
• 21 types - has two panels and one convector located between them;
• 22 type - consists of two panels and two convectors;
• Type 33 - has three convectors located between three panels.

Major differences between models can be and in overall dimensions. It is clear that the more panels, the thicker the assembled structure itself, usually from 50 to 155 mm. The length of such a battery can vary from 400 to 3000 mm, and height - usually, ranging from 200 to 900 mm.

Panel batteries are manufactured with side and bottom connections - the choice for this parameter is made depending on the passage of the pipes of the heating system and the preferences of the owners.

The advantages of panel batteries include the following:

• Ease of installation. The battery has a one-piece design, so it does not need to be assembled from multiple parts. The panel is hung on brackets fixed to the wall, and the branch pipes are connected to the pipes of the heating circuit.
• Due to the low massiveness of the steel sheet, the panel warms up almost immediately after starting the heating. This contributes to good heat transfer from both the surface directed into the room and in the plate heat exchanger, which makes it possible to obtain the desired air temperature in the room quickly enough.
• The compact size and neat appearance allow the panels to fit into any interior.
• The operation of panel batteries in an autonomous heating system saves on fuel, since a relatively small amount of coolant is used to fill the circuit.

The negative features of panels include the following factors:

• Metal panels do not have an anti-corrosion coating on their inner surface, which is in direct contact with the coolant, which can lead to rather rapid rusting, leaks, and failure. This is especially typical for central systems, where the coolant is drained in the summer, opening up "ample opportunities" for corrosion processes. And the quality of the coolant also does not always contribute to the duration of the trouble-free operation of the devices.
• If batteries are installed in a central heating system, then it will not be possible to avoid water hammer, which the panels may not withstand. Therefore, it will also be necessary to install a gearbox that equalizes the pressure and takes a blow on itself.

To get more detailed information about the manufacturing process, characteristics and nuances of operation, you should follow the recommended link to a special page of the portal.

Tubular batteries

Tubular steel batteries consist of type-setting sections that are welded together. The efficiency of this design will be at the proper level if the required number of sections is installed in the battery, with its total thermal power corresponding to the area of ​​the room.

Tubular radiators can have a very wide variety of different design solutions, and this is one of those criteria that directly affect the choice of this particular type of battery. In addition, tubular batteries can be equipped with a special towel rail, which is very convenient, for example, for a kitchen, or a top panel that can serve as a seat or shelf for drying shoes.

They are produced in different sizes, the height varies from 200 to 2000 mm, and the thickness, as a rule, from 100 to 250 mm. The ordered length can be any, depending on the need for heating.

These elements of the heating system can withstand pressure from 8 to 15 atmospheres. To avoid damage to batteries during water hammer, if they are installed in a central heating system, they, like panel ones, will require the installation of a reducer.

The wall thickness of steel tubular radiators is only 1 ÷ 1.5 mm, so they warm up very quickly and give off heat to the room. But the same factor can be attributed to design flaws, since thin steel is easily susceptible to mechanical damage.

Unlike the panel type, the tubes of these batteries have an inner coating with polymer protective films, which keep them from the influence of the aggressive medium of the coolant, and as a result, from the occurrence of foci of corrosion, which significantly prolongs their service life.

The advantages of tubular steel batteries include a variety of design solutions in shape and color, supplying radiators with additional elements, and an original neat appearance.

There are only two serious disadvantages of this type of batteries, but they can have a much more significant effect on the heating system of a house than the already mentioned advantages:

• Low heat dissipation, which will lead to high energy costs. The batteries heat up quickly, but they also cool down quickly, so the boiler will turn off for a very short time. The absence of an additional heat exchanger, except for the surface of the pipes themselves, makes the area of ​​active heat transfer very small. This ultimately suggests that it is unprofitable to install tubular batteries in an autonomous heating system.
• At the same time, welded joints can be attributed to the weak point of such batteries - there have been cases of leaks on them after water hammer. The conclusion suggests itself quite the opposite - it is possible to install tubular batteries without a gearbox only in a system with autonomous heating.

In short, there are a lot of contradictions, and you need to think very well before purchasing such heating batteries.

Cast iron radiators

Although today a large number of batteries are produced from modern materials, the cast-iron elements of the heating system have not been forgotten either. They can be found in stores in a transformed form, decorated to match modern interiors or strict "classics". In some cases, such radiators even play the role of a decorative element and are able to set the tone for the entire design of the room.

In addition, modern cast iron batteries do not require periodic painting, as was the case with the old "Soviet" models. They go on sale with a treated and painted surface, which you will only have to occasionally wipe or dust off from it.

Modern radiators from can have various sizes, so they can be matched to any area of ​​the room. In addition, if the old batteries had to be hung on brackets driven into the walls, then today you can purchase options in which massive legs are provided on which they are installed and fixed to the floor in a specific place for them.

Prices for cast iron heating radiators Konner

cast iron heating radiators Konner

Unlike all other types of batteries, cast iron batteries have an important advantage - they will function equally effectively both in an autonomous and in a central heating system. The main thing is that all connections of sections and pipes are carried out correctly and reliably - then the cast-iron elements will not be afraid of water hammer or corrosion.

Despite the emergence of new battery options, cast iron continues to be popular and because of its excellent heat capacity- the property to keep warm for a long time. They have thick and massive walls that take a long time to warm up, but, having gained temperature, warmed up, when the heat flow along the circuit is turned off, they remain hot for a much longer period than radiators made of other materials. This is due to the properties of cast iron - it is not without reason that it is widely used for the manufacture of heating furnaces and or individual components for them.

In specialized stores, you can find both domestic and imported versions of cast iron radiators. Countries such as Germany and Turkey, Spain and England, Czech Republic and Italy present their products - in many ways, they compare favorably with those manufactured at domestic enterprises.

• Imported radiators have high-quality smooth or embossed surfaces.
• An important functional feature is the high heat output, even with small dimensions. For comparison, we can take the volume of a traditional domestic battery, which is 1.3 liters, while a Czech-made radiator has a volume of only 0.8 liters, with the same heat transfer. Thus, the foreign version will be more compact and will save a decent amount on the coolant and on the operation of the boiler.
• In addition, unlike natural ones, imported batteries have a perfectly smooth inner surface, which prevents the formation of scale on the walls and significantly reduces the hydraulic resistance of the coolant circulation.
• Since any cast iron radiators are resistant to corrosion, they can be used in open heating systems, where a large amount of dissolved air enters the coolant.
• All cast iron batteries have sufficiently thick walls, which increases their resistance to possible abrasive wear.
• Unlike natural ones, imported radiators come to stores already painted and do not require periodic renewal of the coating, which will save not only money, but also the time of homeowners.

However, all foreign-made products have a price that is much higher than the cost of domestic batteries.

The disadvantages of all cast-iron batteries can be attributed to their large weight, so they can be hung on all walls or partitions. And the very process of mounting on the wall is somewhat more complicated than with other radiators.

Aluminum batteries

Aluminum batteries are suitable only for installation in an autonomous heating system, since they are quite demanding on the quality of the coolant. This type of radiator is quite popular among the owners of private houses, due to its affordable price, good performance and modern exterior design.

Manufacturers set in the passport the minimum service life for aluminum batteries 10 ÷ 25 years, but they may well serve for a longer time. The duration of their "life" will directly depend on the quality of the coolant, the correct installation and operation of the heating device.

Prices for aluminum radiators

Sectional aluminum radiator

This one is designed for a pressure in the system of up to 15 atmospheres, a coolant temperature of 90 ÷ 100 degrees, and the heat transfer of a section can reach 200 ÷ 210 W. In this case, the capacity of each of the radiator sections is only 450 ml, and the weight is 1.0 ÷ 1.5 kg. The individual sections are held together to form a single battery by means of a threaded axial connection.

The standard distances between the upper and lower axles are 200, 350 or 500 mm, but it happens that non-standard options are made with a center distance of 800 or even more millimeters.

Aluminum radiators, like all other heating devices, have their own advantages and disadvantages.

TO advantages their following qualities can be attributed:

- high level of heat transfer;

- low weight;

- relative ease of installation;

- convenient and wide range of sizes;

- neat, aesthetic appearance;

- as a rule - equipped with a thermostat, which allows you to set the desired temperature regime.

From disadvantages the following is worth mentioning:

- the possible risk of gas formation, which can provoke " airing " and blockage of the heating circuit;

- the possibility of leakage at the connections of individual sections;

- the main concentration of heat on the edges of the elements.

- susceptibility of some types of aluminum radiators to corrosive processes.

Some of the problems that can arise with aluminum batteries can be avoided. For example, in order for its possible gassing to paralyze the operation of the system, it is necessary to cut into a common autonomous circuit or install an air vent on each battery. And in the case of an autonomous system, it is generally better to use one that is well adapted to aluminum (this is described in detail in the corresponding publication of the portal).

The sections of aluminum batteries are made from an aluminum alloy using silicon additives, but different models may also differ in the way they are manufacturing - casting and extrusion.

• The first method involves the manufacture of each section separately, by pouring the alloy into special molds under high pressure. Silicon, present in the alloy, gives special strength to the walls of the radiators, and the manufacturing method fully guarantees the tightness of the container.

Batteries manufactured by this method are capable of withstanding a system operating pressure of up to 16 atmospheres. During test activities, the coolant is supplied to this type of battery under a pressure of 25 atmospheres, that is, giving the characteristics of its products, the manufacturer gives a one and a half margin of safety.

Using this technology, sections of various shapes are made, but those that have a flat, smooth outer surface are still traditional - it is optimal for better heat transfer.

• Another method of making sections is the extrusion method. The melt using this technology is pushed through the forming nozzles - the desired billet profile is obtained. This is followed by cutting the profile into separate parts.

Then the finished sections are assembled into a single structure. Batteries manufactured in this way have a lower cost, but during operation they cannot be increased or made smaller - the design is non-separable. The quality of such radiators is also lower, since the joints of the sections (on seals or even on special glue) under an unfavorable set of circumstances can leak and cannot be repaired.

Aluminum batteries with anodic oxidation

There is another type of aluminum battery. They are made from metal with a high degree of purification, and still undergo anodic oxidation stage - therefore, the term "aluminum anodized" is often found. With such a special treatment, aluminum somewhat changes its structure, and if ordinary aluminum radiators are susceptible to oxygen corrosion, then anodized sections can withstand such influence with dignity. In such designs, the batteries are assembled using couplings that are attached to the outside of the sections.

Anodized sections for radiators are made by casting, and outwardly they almost do not differ from ordinary aluminum batteries. Therefore, when purchasing them in a store, you must carefully study the passport, which should be attached to such products.

The inner surfaces of this type of radiator are absolutely smooth, so there are no obstacles to the circulation of the coolant. Their upper working pressure limit is much higher than that of conventional aluminum ones, ranging from 45 to 75 atmospheres.

Naturally, due to their outstanding technical characteristics, the cost is also significantly higher, but nevertheless, in order for aluminum batteries to last as long as possible, it is worth choosing radiators of just such a variety.

Bimetallic batteries

In terms of reliability, bimetallic radiators are perhaps in second place after cast-iron ones. They are produced according to a combined principle, from two metal alloys - the inner part is made of stainless steel alloy, and the outer part is made of aluminum, covered with a layer of enamel.

Bimetallic batteries also consist of sections that are connected by means of a threaded connection. At the same time, their exceptional reliability is based on the fact that the outer aluminum casing does not come into contact with the coolant in any way, but serves only as an effective heat exchanger (due to the highest thermal conductivity of this metal) and somewhat of a decorative element. And water or antifreeze circulates through channels made of steel alloy, which is more resistant to baric loads and oxygen corrosion. Due to this, such batteries can easily withstand pressure surges up to 35 ÷ 40 atmospheres.

These qualities of bimetallic batteries allow, without any restrictions, to install them both in the central heating system of high-rise buildings, and in an autonomous one - in a private house. The only thing, in the second case, it will be desirable for them to create the necessary pressure, otherwise, they will not function at full strength, losing a number of their advantages. This means that natural circulation will not work here, and it is necessary to install a circulation pump in an autonomous system.

Bimetallic batteries are quite expensive - their price, in any case, is much higher than that of steel or ordinary aluminum ones, but this is fully justified by their high reliability and long service life. In fact, the high cost can be called the only drawback, while they have much more advantages:

• The high thermal conductivity of the outer aluminum "shell" makes it possible to quickly heat up the room.
• Corrosion resistance already mentioned above.
• Compactness and aesthetics of appearance, thanks to which the radiators will perfectly fit into any interior style.
• Bimetallic batteries do not require special maintenance or periodic painting, as they are covered with a two-layer hardened polymer coating.
• Ability to withstand high temperatures and increased working pressure, thanks to the inner steel body.
• Relatively small weight, ease of installation, which can be carried out without the help of specialists.

The appearance of bimetallic radiator options is somewhat similar to aluminum batteries, but the price difference is quite significant. When buying, it is sometimes even impossible to distinguish between two adjacent types of radiators, so it is better to purchase them in specialized stores or from trusted suppliers. Necessarily requiring at the same time technical documentation.

Prices for popular heating radiators

When choosing, you should not save money, because by buying cheap low-quality products you can doom yourself to another completely unplanned and unwanted repair in two to three years. Installation by the owner of radiators unsuitable for the existing heating system can ruin not only the flooring in his own apartment, but also lead to serious problems with flooded neighbors below. So saving on small can lead to substantial costs later.

Therefore, when purchasing any, it is necessary to study not only the passport with the specified technical characteristics, but also the certification of the product with the manufacturer's warranty obligations. It is important to do this in order to avoid buying fakes that are very similar to the "" brand "sample externally, but still do not cease to be of low quality.

To "consolidate the material", it is proposed to watch a video lesson that will help give an answer to the question: "Which heating batteries are better?"

And one moment. It is important not only to determine the type of radiators - from the total thermal power must correspond to the parameters of the room where they are installed. To carry out such calculations, we suggest using the special calculator below.

When the construction work on the house is completed, the question arises of how to arrange the heating system so that the house is warm. The main component of the heating system is, of course, heating radiators. Their choice must be approached with particular seriousness, because the strength, durability and reliability of your system depends on it.

The downside is the prohibitively high price, which is inaccessible to the middle class. You can buy cheap models of bimetallic radiators, but only the name remains of the qualities in them.

It is not advisable to use bimetallic radiators for a private house due to the high cost. They have the greatest strength, but the local network of the heating system does not have high pressure, so the advantage of this radiator is useless in this case.

By structure, radiators are divided into tubular, sectional, convector and panel radiators.

Steel radiators

All batteries have functional drawbacks. The convector radiator is durable, economical, safe and beautiful enough. The only drawback is the high price, because they are made from high-quality and expensive materials.

Correctly giving preference to one or another type of radiator will help such a characteristic as power. It is easy to calculate it: in a room with a ceiling height of 300 cm and one window, 100 watts will be needed to heat one square meter. When the room has two outer walls, add another 20%. If there are two outer walls and two windows, add 30%. When the window exits to the north side - you should throw 10%. An important factor will be the installation of radiators, because no matter how good you buy the batteries, if they are installed incorrectly, there is still zero sense from this. Loss of heat

1. batteries are always placed under windows
2. their length must correspond to the length of the window, or at least half the length
3. in the corner room, an additional pair of radiators can be installed along the outer wall
4. it is better to mount heating risers in the corners. This will ensure their warming up and the ability to avoid blackening of the wall and the formation of mold.
5. they must be available at all times.

When choosing heating radiators, you should rely on the technical characteristics of the radiators and the heating system itself, as well as the budget. With proper study, you can always find a middle ground for yourself.

Whatever high-quality batteries are in the apartment, sooner or later the moment comes when they have to be replaced with new devices. And immediately the problem is - which heating radiators are better for an apartment to choose? Another case when there is a desire to install new batteries is if there are old cast-iron "accordions" in the apartment for a long time, which do not want to fit into the interior created by the owners.

The modern market offers a wide range of models of radiators made of various materials and having a completely aesthetic appearance. Comparing the design of modern appliances with crude cast-iron batteries or ineffective and low-quality convectors that were previously installed in apartments, of course, I want to see such new items in my possessions.

Radiator selection criteria

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 ultimate load, so they simply will not be able to withstand water shocks, which, alas, are not uncommon in our utilities. 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 separate room, otherwise the efficiency of their work will be very low, and the premises of the apartment will not be comfortable enough.

So, the effect of the installation of new heating devices will be expectedly high, if we take into account all their operational nuances and follow all the recommended technological installation rules.

Today, several different types of radiators are produced, differing in the material of manufacture and design:

1. Cast iron batteries, both old and refurbished, with an elegant modern or retro design.
2. Steel radiators - tubular and panel.
3. Bimetallic heating devices made of two types of metal.
4. Aluminum of various quality levels.

When choosing batteries for installation in an apartment, you need to consider the following criteria:

• 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 characteristics of the composition of the coolant in the system, as well as the endurance of radiators to these influences.
• The material of manufacture of devices and its main physical characteristics.
• Battery design.
• Required radiator power - on the basis of this parameter, the number and size of sections required for efficient space heating is 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 in the article later.

To begin with, you can give a small table, which, albeit briefly, but rather informatively characterizes the main types of heating radiators. Well, then let's take a closer look at the basic types.

Types of heating batteries and their main characteristics

Cast iron radiators

Cast iron radiators are "long-livers", but they 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 rather 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 the 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, you should immediately make a reservation about that. That it is undesirable to install them in autonomous systems working with electric boilers - operation may turn out to be too expensive in terms of high energy 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. This is not a problem for cast iron - the material is not subject to oxygen corrosion.
• Thick walls of cast-iron heating devices not only keep the coolant temperature longer, but also increase the resistance of the batteries to abrasive wear.

• If the old batteries had one standard size ruler, and for proper heating of the room it was necessary to select a radiator by exclusively varying the number of sections, today devices with different power parameters are being produced. This expands the possibilities for the complex selection of the necessary radiators, both in terms of the required power and in the design of the premises.
• In order to mount the old cast-iron batteries, it was necessary to drive the brackets into the wall, and therefore damage its finish. Modern batteries are produced both in a hinged version and in a floor-standing 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 painted periodically, as it was necessary with old 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 can be brushed off or rubbed 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 practically does not collect on them.

• Some cast-iron models of batteries are produced in very original styles of design, which allows them to fit into any interior, no matter how modern or even retro-looking. It is possible to choose heating devices in such a way that they will also become a decorative element of the room's design, complementing and transforming it.

The main disadvantage of all cast iron radiators is their heavy weight. If you plan to hang them on the 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, Czech Republic, Spain and others - represent 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-processed outer surfaces, and the original retro versions are decorated with molding in the form of floral embossed ornaments.

• Imported products have a higher heat output with small dimensions. So, for example, with the same heat transfer, the volume of filling the section of the domestic battery with the coolant is 1.3 liters, and of the Czech production - only 0.8 liters. Therefore, this option will be more compact and neat.
• Foreign products have perfectly smooth internal cavities, which contributes to 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 are sold with primed surfaces and require painting, while imported batteries are immediately ready for installation.

• The disadvantage of foreign products is their very high cost, which is several times higher than the price of Russian-made batteries.

For the sake of fairness, it must be said that the production of more modern cast-iron batteries is gradually getting better in our country. In addition, excellent cast-iron radiators of European quality are also produced in neighboring Belarus at the Minsk Heating Equipment Plant.

Output: 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 in both their construction and design. They are usually made in the form of panels or pipes arranged together, therefore, such heating devices are called tubular or panel heaters. 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 formed into the desired shape by means of stamping. Then the workpieces are welded into a hollow panel and, if necessary, equipped with special convector elements - in order to create a vertical directional movement of the heated air, thereby forming a kind of thermal curtain from the cold coming from the window.

The coloring of such a battery occurs after all the elements are assembled 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

For steel batteries to last as long as possible, the protective paint coat must be applied evenly. Therefore, when purchasing this type of device, special attention should be paid to the coating, since steel sheets can be corroded on damaged, unpainted areas.

Panel batteries are designed for a coolant with a temperature of up to 85 ÷ 95 degrees, as well as for the standard pressure created in the 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 given in the table:

Panel radiators can differ quite strongly 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 their height usually varies from 200 to 900 mm.

In addition, panel batteries are produced with 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 deciding 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 design and 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 the heat exchangers-convectors contributes to effective heat transfer, so the room heats 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 have their own significant disadvantages, which include the following:

• They are reliable at normal pressure in the central heating system, but they are not designed to withstand powerful water shocks, which often occur when the system is filled with coolant before the start of the heating season. The panels may simply not withstand such a test. Therefore, if they are chosen for installation in an apartment, it is necessary to use a special device - a reducer to protect against excessive intra-system pressure - a reducer, which will smooth the load on the panel, taking a blow on itself.
• 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 a central heating system, the coolant is very often not of high quality, and can contain very active impurities that contribute to metal corrosion. Therefore, as a rule, a panel-type radiator cannot be used in such conditions for a long time, since unprotected steel surfaces are not resistant to an aggressive environment.

Based on the above considerations, it follows output that the installation of panel steel radiators in an apartment with a central heating system is undesirable.

Tubular steel batteries

Unlike panel radiators, tubular radiators 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 effective, it is necessary, before purchasing such radiators, to calculate the required total power required for a specific area, and from these considerations, select the optimal model.

Batteries of this type are designed for an in-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 to the room. However, it should be noted that thin walls are also the weak side of such batteries, since they are easily susceptible to mechanical damage.

Tubular structures are more resistant to an aggressive environment of low-quality heat carrier than panel structures, since they usually have an internal protective coating made of polymer materials. Therefore, they are less exposed to corrosive effects and, accordingly, with normal other parameters of the system, they can serve longer.

Tubular radiators can have very different, sometimes even "unexpected" dimensions. So, their height ranges from 200 to 2500 mm, their depth ranges from 100 to 250 mm, and their 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-mounted and floor-mounted. Moreover, they are installed both near a wall or window, and even in the middle of the room. For installation in the center of the room, radiators with a height equal to the height of the ceiling are used, taking into account the support legs. This option is used when the room needs not only to be heated, but also to be divided into separate zones.

• Some battery designs are equipped with wood panels installed 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, since 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 ones that negatively affect the efficiency and safety of the apartment heating system:

• A sufficiently low heat transfer, leading to an increase in energy costs if the batteries are installed in an autonomous heating system. The structure heats up quickly, but it also tends to cool down quickly, so the heating boiler will work almost constantly, with short interruptions. Conclusion - 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, it is also undesirable to install them in an apartment circuit connected to a central heating system. If they are nevertheless chosen because of 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 the above : Tubular steel batteries, despite their visual appeal, are far from ideal. Installing such radiators in an autonomous system will lead to unnecessary energy costs, and in the central heating system - to an increased risk of emergencies.

Aluminum radiators

Aluminum radiators have an aesthetic appearance, but it must be said right away that, in terms of 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

Among homeowners with autonomous heating, aluminum radiators are very popular due to their elegant appearance and high heat transfer. In an autonomous system with a stable pressure and a high-quality coolant, aluminum heating devices can last from 15 to 25 years - these are the terms that manufacturers usually indicate in the technical passport as the minimum.

Radiators are designed for in-system pressure up to 15 atmospheres and a coolant temperature of 80 ÷ 90 degrees. They have excellent power (heat transfer), reaching 200 ÷ 210 W, and the volume of each of the battery sections is only 450 ml with a weight of 1 ÷ 1.5 kg. The sections are fastened using a threaded coupling.

Aluminum batteries can vary in size. So, the standard for the 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 millimeters or more.

The schematic drawing shows a center-to-center connection of 500 mm with a total battery 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 form with the prepared alloy. This manufacturing technique guarantees tightness of each section.

• Batteries produced by casting technology are designed for heating system pressures up to 16 atmospheres. During factory tests (pressure testing), the coolant is usually supplied under a higher load, which reaches 25 atmospheres, which indicates that the manufacturer provides consumers with an additional margin of safety for their products. Cast heatsinks come in a variety of shapes, but generally have a smooth outer surface for better heat dissipation.

• The second, manufacturing method, using extrusion technology, consists in forming sections by forcing the melt through special nozzles that define the configuration of the products. As a rule, the so-called secondary aluminum, a scrap recycled product, 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 susceptible to oxygen corrosion.

The finished sections are assembled into a common structure, which during operation cannot be increased by extension or reduced - a finished assembled battery comes from the factory, which is a finished product. Such radiators cannot be repaired either - this should be taken into account when planning a purchase. The conditions of high pressure in the system, poor-quality coolant, the likelihood of water hammer are clearly not for such radiators. True, the price for such heat exchange devices is significantly lower than for cast ones.

• Another type of radiators is produced from aluminum, but already having a high degree of purification of raw materials and with anodic oxidation of surfaces. They are often called that - anode. In the manufacture of the initial alloy, aluminum changes its structure several times - this process is performed to achieve maximum material resistance to any type of corrosion. Therefore, such batteries are not afraid of the aggressive environment of any coolant.

The 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 built up to obtain the required total thermal power.

The inner surfaces of the batteries, made of anodized aluminum, are perfectly smooth, which contributes to the unimpeded circulation of the coolant. The working pressure of such radiators is much higher than that of ordinary 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 option for 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.
• Low weight, greatly simplifying the stages of transportation and installation work.
• A variety of sizes from which you can choose the one you want.
• Aesthetic appearance that allows you to "introduce" such radiators into the interior of any style.
• Relative operational safety. On impact, flat and smooth aluminum surfaces are 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 precisely regulate the temperature regime. This quality is especially important if an autonomous heating system is created in the apartment, since the thermoregulation devices of radiators contribute to saving on energy consumption.

The negative aspects of these heating devices are the following factors:

• High risk of gassing in the internal channels of the structure (applies to conventional, non-anodized aluminum batteries, cast or extrusion).
• Possible leakage at the connection of sections without the possibility of repair - for extrusion radiators made of secondary aluminum.
• Concentration of heat in the area of ​​the ribs of the elements of the device.

Some of the potential problems with aluminum batteries can be circumvented. So, for example, in order to prevent gases from accumulating inside the structure, it is recommended to install a special air vent on 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 listed disadvantages. If the apartment is connected to central heating networks, it is recommended to choose exclusively radiators made of anodized aluminum - it is more resistant to an aggressive environment, and to high temperatures, and to pressure drops in the system.

Bimetallic radiators

Bimetallic radiators are currently the most popular of all types of modern batteries, perhaps second only to traditional cast iron batteries.

These heating devices are manufactured according to a combined principle - they are assembled from parts made of two different materials, which, in fact, is clear from the name. So, the outer part of the battery is made of aluminum, which has maximum heat transfer, and the inner channels for the circulation of the coolant are made of high-quality steel alloy that is not subject to corrosion. The aluminum outer 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 - not necessary, that is, this part is simply excluded from the formula. The resulting value will show what total radiator power is required for a given room.

However, these formulas will be valid only for standard average conditions. Therefore, when calculating a radiator by the area or volume of a room, it is important to take into account the correction factors, which are determined by the minimum winter temperature in the region of residence, the features of the location of the room, the quality of wall insulation, the number and type of windows, the presence of a door to the street or to the 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 presenting 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 thermal power 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 heat 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 rated power of one section is left blank.

Gone are the days when we all lived in buildings equipped with the same heating radiators. These cast iron monsters were large in size, but reliable and efficient enough to work with. Their other problem was in appearance and design: in Soviet times, they did not think much about beauty, because the main thing is that the battery warms up constantly and stably. Today the situation has changed dramatically: on the market you can find more technically advanced radiator heating systems that not only work efficiently, but also look very good outwardly.

The rating offered by us includes the best heating radiators designed for installation both in private houses and in apartments connected to a central heating system. The selection includes: bimetallic, aluminum, cast iron and steel radiators.

TOP-10: Rating of heating radiators for apartments and houses 2020

On a note:

Water hammer is the main root cause of breakdowns in radiator heating systems in multi-storey buildings. Control over pressure drops inside the heating system is not available to us, but we have the opportunity in a number of situations to forestall the threat of a problem. If you hear clicks or buzzing, then these are the first signs of a sharp change in the pressure level in the heating batteries, in the event of which you should immediately contact the utilities.

The best radiator heating systems for apartments

"Global STYLE PLUS 500"

The product from the Italian company is sold in stores with a ten-year manufacturer's warranty, which already proves the high quality of workmanship. It features a high level of heat dissipation, since each section is made of a steel core and an outer layer of aluminum. Withstands pressure up to 35 atmospheres, so the heating battery can be safely installed in an apartment of a multi-storey building. The design of the internal cavities of the radiator excludes the formation of air congestion, which also protects against water hammer.

Advantages of the model:

• Nice design;
• Effective level of fast heat transfer;
• Italian quality;
• Resistant to water hammer.

Disadvantages identified:

• They do not heat well at a low temperature of the coolant;
• Quite a high price.

Rifar Monolit 500

The bimetallic model, made of aluminum and steel, made it to our rating due to its amazing survivability and reliability. The unique design of the product practically does not allow the possibility of leaks, and the excessive parameter of resistance to a maximum pressure of 100 atmospheres allows you not to fear water hammer. Another plus is unpretentiousness to the quality of the liquid heat carrier used in the central heating system.

Advantages of the model:

• Reliability and durability;
• Minimal risk of leaks;
• Nice appearance;
• Resistance to water hammer;
• No sharp corners.

Disadvantages identified:

• Sold in pairs only;
• Price.

Sira RS Bimetal 500

The heating battery is also made of steel and aluminum, which helps to significantly increase the rate of heat transfer. It is capable of operating at an internal pressure of 40 atmospheres, which is more than enough for connection to a central heating system. In addition to apartments, it can also be used in offices, as it provides for the simultaneous use of 20 sections.

Advantages of the model:

• Workmanship;
• High level of resistance to water hammer;
• Attractive design;
• High heat dissipation.

Disadvantages identified:

• High price.

"МЗО МС-140М-500"

Unkillable Soviet classics: a model for those who are experiencing financial difficulties or want to save money on the purchase of radiator heating systems. Heats up slowly, but also cools down slowly. Made in Belarus, the manufacturer gives a modest three-year warranty, but this battery will last much longer.

Advantages of the model:

• Unpretentiousness;
• Resistance to water hammer;
• Good heat dissipation;
• Minimum cost.

Disadvantages identified:

• Dimensions and weight;
• Unpresentable appearance.

Viadrus Styl 500/130

A more expensive version of a cast-iron radiator heating system with an attractive appearance and good performance. Made in Czech Republic, workmanship is above average. Suitable for installation in low-rise buildings, it is not recommended for installation in high-rise buildings due to its low resistance to internal pressure drops: the battery is designed for an average operating pressure of 12 atmospheres, the stability threshold according to the data sheet is 18 bar.

Advantages of the model:

• Good heat dissipation;
• Reliability;
• Workmanship;
• Low price;
• Unpretentiousness to the quality of the fluid used for heat transfer.

Disadvantages identified:

• Weak resistance to water hammer;

The best radiator heating systems for private houses

"Thermal Standard Plus 500"

Product of the Russian defense enterprise Zlatmash. Made by pressing, compares favorably with competitors' products in price and high level of heat transfer. The battery will function normally even at a pressure of 24 atmospheres: according to this parameter, it is also suitable for installation in high-rise buildings. Unfortunately, like all aluminum batteries, the product is sensitive to the acidity level of the coolant, so it should only be installed in private houses.

Advantages of the model:

• High level of heat transfer;
• Low weight;
• Low price;
• With proper use, it will last a long time.

Disadvantages identified:

• Sensitivity to the quality of the coolant.

"Sira Alice Royal 500"

The strict contours of the radiator fins give the model versatility, so that it can perfectly fit into any interior of the room. Parts are injection molded for added durability and long life when used correctly. It works stably at a pressure of 16 atmospheres, the warranty period from the manufacturer is 15 years.

Advantages of the model:

• Appearance;
• Acceptable price;
• Long service life.

Disadvantages identified:

• Will suffer from corrosion if the wrong heat transfer fluid is used.

"Kermi FKO 22 500 1000"

Steel panel radiator with side connection. It is made in the form of a monoblock, so it is easy and quick to install. The corrugated fins increase the level of heat transfer, and a small amount of liquid used for heat exchange will speed up the heating process. Made in Germany, carefully assembled from quality materials. Unfortunately, the device is designed only for use in the private sector and can withstand a maximum pressure of only 13 atmospheres.

Advantages of the model:

• Aesthetic appearance;
• Fast and efficient heat dissipation;
• Easy installation;
• Made in Germany.

Disadvantages identified:

• Overpriced;
• Poor resistance to water hammer.

Rifar Base Ventil 350

A versatile bimetallic alloy model suitable for multi-apartment buildings or private homes. Installed quickly, ribs of different heights can be selected. It will work stably at a pressure of 20 atmospheres and a coolant temperature of 135 degrees Celsius. The only negative, apart from the price, is the quality of the painting.

Advantages of the model:

• Good level of heat dissipation;
• Appearance;
• Build quality;
• Versatility;
• Fast installation.

Disadvantages identified:

• At elevated temperatures, the battery will quickly cover the paint.

"KZTO Elegant 1 250"

Compact, bimetallic radiator that can be installed on the floor or attached to the wall. An alloy of copper and aluminum is responsible for heat transfer: it provides increased efficiency of the device. Only water is used as a heat carrier, which limits the possibilities of using the radiator (not suitable for installation in some district heating systems). The maximum working pressure is 15 atmospheres.

Advantages of the model:

• Compact dimensions;
• Efficient and economical use of heat sources;
• Several painting options to choose from;
• Good equipment: it includes a Mayevsky crane.

Disadvantages identified:

• Price;
• Flimsy thread at the junction of the system connection.

What should be considered when choosing heating radiators? What is the best radiator to buy?

When buying new radiator heating systems, it is imperative to find out from what materials the device is made. For example, when installing a new battery in an apartment, two options, namely steel and aluminum radiators, should be discarded immediately: the former suffer greatly from pressure drops, and the latter from corrosion. Bimetallic models are good for everyone, but at a price they are much more expensive than other types of products. If reliability is important to you and you do not want to overpay extra money, then you should dwell on the usual heating systems made of cast iron: on the market you can find many decorative products made of this material with an attractive appearance, extraordinary design and at an affordable price.