Bimetallic heating batteries which brand is better. Bimetallic heating radiators: features, types, how to choose. Video: how to choose heating appliances
These devices are made up of two different metals, which became widespread in Europe fifty years ago and is still relevant due to its high reliability and ease of operation. This article provides detailed material about bimetallic heating radiators, which ones are better to choose for certain needs, comparative review prices of domestic and foreign producers.
Bimetallic products have not lost their well-deserved popularity for fifty years.
Radiators of all types have a similar structure in general terms. They consist of two parts - external and internal, made of different metals. Carefully study the types of bimetallic heating radiators, and determine which ones are suitable for your case.
The inner part of any bimetallic radiator is made of steel or, which is much less common, copper. These materials were not chosen by chance, since they are the ones that tolerate the negative effects of hot well.
External coating the device is made of aluminum, which conducts heat well and quickly warms up the room.
Both layers are assembled together using spot welding technology or casting. The level of pressure at which the casting was made largely determines how high loads the radiator can be subjected to. This indicator is very important when operating in a centralized heating system, since the water pressure in it is often quite unstable. Sections are attached to each other with steel nipples and special gaskets withstanding temperatures up to 200°C.
Which heating radiator is better: aluminum or bimetallic?
When replacing batteries, many people often have the question “Which heating radiators are better: aluminum or bimetallic?” The answer to it is unequivocal - bimetallic, since they are much more reliable and efficient. To correctly determine which radiator is in front of you, you need to remember two simple points. The first is that a bimetallic radiator is always heavier than an aluminum one due to its steel or copper filling. And second - always check the technical documentation and certificates that you can request from the seller.
Bimetal constructions have a much higher operating efficiency and duration of correct operation.
Bimetal devices
This type is a classic version in which the core is made of steel or copper, cast under pressure with aluminum. Such a solution does not allow aluminum to come into contact with the coolant medium, and allows you to protect the material from destruction and deformation under the influence of high temperatures.
Useful advice! For independent heating systems, it is better to choose a copper core, since the antifreezes used in such solutions often adversely affect steel. .
Devices of semi-bimetallic type
This solution is a radiator, pipes in which are made half of steel or copper, and half of aluminum, as in conventional batteries. The disadvantage of this type is considered to be that aluminum is easily destroyed under the influence of high temperatures and an alkaline environment, which are often found in the central one. However, for autonomous system semi-bimetallic devices are not the best option, since even with the use of antifreeze, there is a possibility of corrosive processes.
Since outwardly these options are almost indistinguishable, it is extremely important to make sure what type of product is in front of you before buying. To do this, carefully read the documentation attached to the device.
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In a separate publication, we will analyze in detail all existing types radiators, consider their characteristics, pros, cons and prices.
Advantages and disadvantages of sectional and monolithic devices
Radiators have two assembly options. The first of them is sectional, in which the battery is assembled in parts and connected to each other with special nipples. The main advantages of this option is that if one section is damaged, there is no need to change the entire battery, since only one of its components can be replaced. In addition, the sectional structure allows you to increase or decrease power. The main disadvantage is that the connecting points of the device are quite vulnerable and are often negatively affected by low-quality coolant, they can leak and conduct heat poorly.
Useful information! If low cost and ease of repair are important to you, choose sectional bimetallic heating radiators. Which is better - see the table below.
The second option is completely monolithic structure, which is manufactured using the following technology: a fully finished core is placed in a special mold and then poured under pressure with liquid aluminum. This type has many advantages over the previous one, but its main disadvantage is the high cost and the fact that in case of any breakdown, you will have to change the whole radiator, and not just one part of it.
Bimetallic heating radiators: which ones are better to choose? Criteria evaluation
When choosing bimetallic products, it is necessary to carefully study the list of criteria, since the durability of the device’s service life, its reliability and efficiency will depend on this:
- Be sure to pay attention to the pressure indicators, since the service life of the product directly depends on this. This is especially true for those who wish to install a battery in a centralized heating system.
- Choose a material that will have a high level of resistance to aggressive environments and will not be subject to corrosion.
- The body of the product must be durable, since low-quality materials can quickly collapse even under slight mechanical stress. To check the quality of the product, try to lightly press on the edge of the device and see if it is deformed.
- When choosing sectional version it is extremely important to pay attention to the quality of nipples and gaskets. A good nipple should not be soft, and an optimal gasket should bend well and not be stiff.
- pay attention to guarantee period- it must be more than two years old, because general term the service life of such devices is 30 years.
Rating of bimetallic heating radiators
In today's market household appliances there is a huge range of products, so before you make a purchase, you should carefully study all the options using the rating of bimetallic heating radiators below.
| A photo | Manufacturer and model name | Country | Max pressure, bar | Max temperature, °С | Average price for 8 sections, rub. |
|---|---|---|---|---|---|
 | RIFAR Forza 350 | Russia | 20 | 135 | 8 000 |
 | Global STYLE 350 | Italy | 35 | 110 | 8 400 |
 | Royal Thermo BiLiner Inox 500 | Italy | 20 | 90 | 10 200 |
 | Sira Gladiator 200 | Italy | 30 | 110 | 5 900 |
 | TENRAD 350 | Germany | 24 | 120 | 4 100 |
 | Gordy 350 | China | 30 | 110 | 3 100 |
After studying the proposed table, you will get an idea of which companies of bimetallic heating radiators are better. Reviews and detailed specifications are freely available on the Internet.
Calculate the required number of sections
For maximum efficiency of the product, it is necessary to correctly calculate the number of sections required for a particular living space. To do this, you need to use a simple formula N=S*100/P ,
where N - the number of sections, S - room area and P - the power of each section, which can be found in the product information.
Have you already decided to install bimetallic heating radiators in your home? Then at the next stage you must decide which option to choose and which manufacturer to prefer. It's pretty difficult decision, since there is currently great amount brands and modifications. Therefore, choosing the best bimetallic heating radiators is quite difficult. To do this, you should know certain information about battery manufacturers and their product.
The equipment of an efficient, high-quality and productive heating system is possible only if a lot of factors are taken into account, among which a significant role is assigned to radiators. At the moment, the choice of batteries is so great that some are completely at a loss. However, bimetallic radiators, reviews of which can be heard more and more often, occupy a leading position.
Peculiarities
As the name implies, we are talking about devices made from two metals at once, for example, aluminum and steel. Thanks to this combination of materials that differ in properties and characteristics, you can get a heater with amazing properties. It all looks like this: steel pipes are laid in an aluminum or copper case. This solution allows for fast and high-quality heat transfer from the coolant. At the same time, a copper or steel rod, which is in constant contact with the coolant, is resistant to corrosion, does not oxidize, which allows it to serve for a rather long time period.
Installation of bimetallic radiators is perfect solution for central heating systems. Despite the fact that in this case the coolant is quite contaminated, and frequent pressure drops and water hammer can be a serious test, such batteries work very well, providing the most efficient heating of all rooms where they are installed.
Creating comfortable conditions in the house
Bimetallic radiators, reviews of which testify to their high quality, can operate without fail for at least twenty years, while there is no need to create any special conditions. According to those who have already installed such devices at their place, they are practical and convenient, since by equipping a room with them, you can achieve optimal conditions heating.
To do right choice batteries, you need to know the basic parameters of such heating devices. Among the important and significant qualities are the resistance to corrosion, as well as the high thermal conductivity of aluminum. This is especially important if you install a bimetallic radiator yourself. Specifications have a direct impact on the future performance of the system. Need to calculate correctly required amount sections.
A center distance of 500 millimeters indicates a heat transfer of 180 watts. The steel layer inside the bimetallic radiator is usually 2.5 mm thick. The most common dimensions of batteries in this category are 57 cm high and 10 cm deep. These dimensions can be called ideal for any modern room, so you can correctly organize the location of the heating elements.
Bimetallic heating radiators, whose prices can range from 400 rubles per section, outwardly almost do not differ from aluminum ones. Because of this, it is quite possible to confuse some models.
The cost of such products is higher than aluminum counterparts. Cheap options are sometimes less reliable than cast iron ones, but the quality is more expensive solutions stays on top.
Design features
One section of the bimetallic radiator holds approximately 0.15-1.5 liters of water. For example, Global products contain a small amount of coolant, which allows you to reduce the power required for heating, while their economy and efficiency are at their best. Since the service life of such radiators is at least 25 years, it is possible to calculate the heating system for a long time, which will ensure optimal operating parameters.
Power calculation
If you choose bimetallic or aluminum radiators, then before choosing specific model sections should be calculated. There is a fairly simple formula that requires knowledge of the heating area and battery power. For bimetallic radiators, the following calculations are necessary: the area of \u200b\u200bthe room must be divided by the power of one section. And the result obtained must be multiplied by 100. With a fractional number, it should be rounded up to a larger integer. When choosing the number of sections of bimetallic radiators, you need to choose more. This will significantly increase the efficiency of the system, reducing heating costs.
Varieties
Choosing bimetallic radiators, reviews of which will tell you which of them are the most attractive, you will find out that several different types of these devices can be found on the domestic market. Each of them should be considered.
- Sectional. The main advantage here is affordable price, as well as the ability to add sections and increase battery power at any time. This is quite convenient and is considered best solution for country house. This is due to the possibility of selecting the most suitable length for any room, even with very large area. Sectional bimetallic radiators, reviews of which indicate their high efficiency, consist of several columnar elements having a round or elliptical shape.
- Convector. As users note, the size of such a heater is strictly fixed, which is somewhat inconvenient when installed in rooms of various sizes. Its design includes a body and a pipe passing inside. An increase in the heat transfer coefficient becomes possible due to the fact that a plurality of metal plates are welded to the steel pipe.
Installation of heating batteries
Installation of bimetallic radiators is not particularly difficult, and it does not require any special physical or financial costs. During installation, it is required to take into account certain parameters, in particular, distances from walls, window sills and floors. For quality installation you need a whole set additional elements as wall mounts, brackets and plugs, as well as taps. Gaskets and adapters may also be needed. The installation itself must be carried out as carefully and carefully as possible, trying not to damage the very fragile aluminum used for the case.
In addition to chemical resistance, such batteries have another significant advantage compared to aluminum: the pressure they can withstand is much higher. Installation of bimetal radiators is much easier than cast iron. According to the happy owners of such equipment, their mass is much less, and attractive design allows you to completely do without the use of decorative grilles, which is not only aesthetic comfort, but also some cost savings.
If we talk about the intricacies of installing a heating system, then at the moment installation using steel pipes is less and less common. This is due to the complexity of the process, as well as the possibility of leakage at the joints by welding. At the moment, polypropylene pipes, which are characterized by high strength, as well as other positive operational qualities. According to consumer reviews, such products practically do not leak, even if the connections were made sloppily and with errors. The margin of safety of connections from polypropylene pipes is many times greater than steel ones.
Those who know a lot about this matter do not recommend using metal-plastic pipes with simple collets. This is due to the fact that they gradually become loose, which can cause many leaks. Such connections must be regularly checked and tightened to avoid such troubles.
Manufacturers of bimetal radiators
Most high quality characteristic of products of these brands: Rifar; global; Sira; Oasis; Industry Pasotti. The prefix "bi" in the name of the product indicates that the batteries are made from two types of metal. Usually it is steel, which is inside and in direct contact with the coolant, and aluminum, which serves as a heat carrier into the room. Steel is not subject to destruction by alkalis, which are usually used in central heating systems in order to remove scale from pipes. It turns out that bimetallic radiators, reviews of which many have already heard and read, gain strength, reliability, and durability through a steel frame. And the aluminum shell gives them a shape, and according to the experience of the owners of dwellings where such batteries are installed, it has a high heat transfer and an attractive appearance.
Advantages
Compared to traditional steel or cast iron batteries bimetallic has a whole range of advantages. Among the most significant are:
- the ability to work in a system characterized by increased pressure (bimetallic radiators, reviews of which are given in this article, are capable of operating at a pressure of 35 atmospheres, which is twice as much as that of cast iron ones);
- resistance to aggressive environments (steel pipes inside the radiators are coated with a special composition that prevents the development of corrosion, and, which indescribably pleases users, is absolutely adapted to the quality of domestic water, and in most cases it leaves much to be desired);
- long term of trouble-free operation in various conditions;
- ease of installation work, reduction of financial and time costs;
- attractive design with a choice of radiators for any modern interior.
Quality and reliability - a suitable basis for selection
It is difficult to determine exactly which company produces good or bad bimetallic radiators. Which is better, you can decide on a number of parameters. It is difficult to say that the products of a certain manufacturer are not worth buying, since they are definitely of poor quality. This is simply impossible, because the equipment is subject to mandatory certification, so frankly unusable goods do not go on sale. Bimetallic heating radiators may cost less, since their manufacture required less material, they have a simpler design compared to the rest, it is quite possible that the manufacturer saved on fine finishing.
For this reason, batteries that are presented in the lower price category, costing a maximum of 400 rubles per section, from little-known Russian and Chinese manufacturers, cannot be called bad. They can be used, but it must be taken into account that operating pressure should be smaller, and their appearance is a little less attractive.
Bimetallic radiators: which ones are better in quality?
Batteries of the middle price category, approximately 400-600 rubles per section, are the main part of the market offer in Russia. Here the buyer is presented with the domestic brand Rifar and the Italian brands Sira and Global. Bimetallic radiators of all these companies are not characterized by any significant differences. In this case, the choice depends on functionality and aesthetics.
At the moment, there is no product on the market that would be more reliable and more expensive. There is one model bimetallic batteries PILIGRIM with a copper core, which is almost completely immune to corrosion processes.
Functionality is one of the selection options
If you choose bimetallic heating radiators, given their functionality, then we can say that in the vast majority there are no differences between them. The difference is only in the presence of models that have a non-standard center distance. In the assortment of all manufacturers there are products with a value of this parameter of 350 and 500 mm. If you have a RIFAR 500 bimetallic radiator in front of you, then the figure indicates precisely this distance and its specific value.
It is possible to note battery models from RIFAR, which have certain additional features.
The first RIFAR MONOLIT model has a monolithic core. Another one interesting series- RIFAR FLEX. These products may not have a straight shape, but are rounded along the walls. They can be used in rooms whose shape is close to a circle. The VENTIL model is present in several series of radiators. They have pipes that allow connection from below the radiator.
Aesthetics
The best bimetallic heating radiators are characterized by the fact that they fit well into any interior. That is why each buyer has the opportunity to choose the design that seems to him the most successful. Coating color is another important aspect. For example, Rifar bimetallic radiators are characterized by a snow-white color, while Global products may be closer to a cream shade.
Experts agreed in one single opinion: batteries of this type are characterized by high heat transfer, long service life, resistance to pressure drops inside the system, compact size and cutting edge design. Bimetallic radiators, reviews of which highlight various nuances of their use, can completely replace old batteries, even taking into account their relatively high cost. Users note that since a battery with a length of more than 10 sections warms up worse than a shorter one, it would be more practical to install several short sections instead of one long one. Rifar bimetallic radiators have the following structure: steel pipes are surrounded by aluminum radiators. They are connected to each other by spot welding or fused under high pressure.
Subtleties of choice
Before purchasing a heater, everyone asks the question: which devices will cope with their tasks better - bimetallic, aluminum or time-tested cast iron? It's hard to give a definitive answer here. At the moment, there is such an extensive range of batteries on the market that it is possible to satisfy the needs of any buyer. Their main difference lies in the material used in the manufacture. It is he who provides greatest influence performance and wear resistance. The installation process of such devices is not distinguished by some supernatural labor costs. It is bimetallic radiators, the reviews of which you will like the most, that are able to please you with a maximum of positive moments with a minimum of negative ones. They have no drawbacks in terms of contact with the coolant. Of all the devices ever used for heating systems, bimetal batteries showed the highest test pressure.
According to the production technology, such products can be divided into two types:
- batteries that are made on the basis of a steel frame;
- radiators reinforced with steel tubes.
In the first, the coolant does not come into contact with aluminum at all, which guarantees complete protection against corrosion. And for the latter, such a moment as the reliability of fixing the steel tabs is important: if they suddenly move, they can block the lower collector, which is associated with varying degrees thermal expansion of steel and aluminum.
Before you buy your favorite radiators, you need to find out a whole set of indicators that the selected device must meet. How to choose batteries for a particular room? For example, you need to know the diameter of the supply pipes that you want to dock with batteries. You should also know the margin of safety for the pressure created in the system, while the number should be maximum. Bimetal radiators (500 mm) are characterized by an excellent design that allows them to fit into any modern interior without special difficulties. These devices have become a good alternative to cast iron batteries.
If you choose a bimetallic radiator, technical specifications are exactly the point that you need to pay special attention to. The presence of the aluminum part allows for the best heat dissipation from the steel pipes located inside. Aluminum does not come into contact with water, which guarantees the absence of any oxidizing and corrosive processes. The steel core, through which the movement of hot water is carried out, ensures the reliability of the radiators. Power devices can reach 200 watts. Radiators do not need to be tinted, as they are covered with a couple of layers of heat-resistant paint. It is worth using such a bimetallic radiator, the technical characteristics of which meet the requirements for heating apartments, houses, offices, as well as all other premises.
When choosing one or another bimetallic radiators, the manufacturer of which you like, you need to take into account a lot of factors, among which technical characteristics and attractive design can be considered the most significant. Usually the manufacturer specifies all the parameters of the device. To purchase best radiators bimetallic heating, it is necessary to evaluate all products on the market for a whole range of parameters.
They are the most modern radiators among those currently existing. They are mounted without problems, allow you to get a lot of heat, and look attractive, in addition, they are not able to spoil the interior design. However, different radiators are sold in stores today, which differ in technical and design characteristics. Which of them is better to choose, you can find out if you read the rating by manufacturers and features.
The difference between semi-bimetal and bimetal
Russian bimetallic radiators
Considering the rating of bimetallic heating radiators for the home, one cannot fail to mention Russian goods. One of the most famous is Rifar. It is located in the Orenburg region and manufactures devices, the price of which for one section varies from 500 to 900 rubles. Thermal power can vary from 100 to 200 watts, working pressure does not exceed 20 bar. The temperature of the hot water circulating inside can reach 135 °C. If you are interested in patented radiators, then you can consider RIFAR MONOLIT, which is quite often called by consumers as a company that produces some of the best appliances on the domestic market. They are able to withstand pressures up to 150 bar, and sectional thermal power varies from 134 to 196 watts. The operating pressure can reach 100 bar and the hot water temperature limit is 135 °C.
Information about Forza brand bimetal radiators
These devices are popular for installation in central systems heating. In them, the manufacturer took into account the requirements and features of the operation of domestic heating systems. On sale you can find models with a center distance of 200 and 350 mm, this allows you to maintain style in rooms with different height restrictions at installation points. A feature of these radiators is a closed rear surface, which allows the use of a radiator in combination with French windows. The coolant in such batteries can be specially prepared water according to the rules technical operation stations and networks. The company gives a 25-year warranty on its products, promising trouble-free operation for 15 years. At the same time, it is necessary to observe the rules of operation, transportation and installation.
Other countries
Before purchasing the described devices, you can consider the rating of bimetallic heating radiators. It is important to pay attention to the manufacturer. For example, the South Korean company MARS manufactures equipment based on a copper core. The price for one section will be 400 rubles, and the limit hot temperature equal to 130 °C. Sectional heat transfer is 167 watts, as for the operating pressure, it can be maximum 20 bar.
It would be fair to note the Japanese company REGULUS-system, which manufactures radiators with a copper core. By purchasing this product, you can count on a 25-year warranty. The working pressure of these devices is 15 bar, and the temperature of the circulating water can reach 110 °C. Chinese manufacturers also supply their products heating appliances on the market. Their radiators are cheaper compared to well-known brands, but they have attractive designs and good finishes. With a modest budget, you can buy radiators from a Chinese manufacturer, however, as practice shows, they are able to endure less impressive pressure.
Features of bimetallic radiators brand MARS
Bimetallic heating radiators, the rating of manufacturers of which is presented in the article, are offered for sale and South Korea, which operates under the Mars brand. This product favorably distinguish among competitors specific consumer characteristics that are focused on the use of heaters in Russian systems. In this case, the equipment may be subject to unstable high blood pressure and low quality coolant.
The variant described is perfect solution, which is characterized by high wear resistance, efficiency and energy savings. The rating of bimetallic heating radiators for an apartment would not be complete without this company, which manufactures radiators with a copper manifold, which completely eliminates corrosion manifestations.