Bimetallic radiators are the same batteries from the times of the USSR, only they have a different look, materials and characteristics. Here the sections are pressed more tightly against each other, they have a flat surface. There is no cast iron here, the main material is steel. They conduct heat well, maintain room temperature well, and are highly energy efficient. But even among them there are lower quality designs, so we analyzed 30 models and included the best in this rating bimetallic radiators for heating apartments and private houses from popular companies. The TOP is compiled based on customer reviews and is designed to make it easier to choose such products.

There are quite a lot of companies with a good reputation on the heating equipment market, but not all of them can offer decent quality at an affordable price. We analyzed the products of more than 20 companies and selected the best among them in terms of quality, design, and energy efficiency. As a result, the rating included products from the following 7 brands:

• Global– the history of this brand goes back to 1971, the company has grown from a small workshop into an industrial giant in the production of radiators. The key differences of its products are lightness, Beautiful design, easy to install and use. They are effective in systems with hot coolant. The surface of the structures is scratch-resistant and, thanks to high-quality painting, does not change its color even during long-term use.
• Rifar– bimetallic radiators of this brand are manufactured in Russia and have optimal combination prices and quality. It is controlled at all stages of production, which ensures the strength, reliability, and efficiency of products. The company's product range includes both monolithic and sectional models. Some of them are offered in several sizes. They are distinguished by perfect sealing of the intersection connection, which minimizes coolant leakage. Their work remains effective at both high and low pressure.
• Rommer is one of the market leaders in sectional heating radiators, which are developed by Russian engineers using unique technologies. This company has its own factory, which is located in China. She takes a responsible approach to production, checking not only the finished product, but also each cast section individually. This allows you to eliminate or minimize the likelihood of marriage. Its products correspond international standards quality. Their collectors are steel and made of corrosion-resistant materials, which increases their service life.
• Sira is a leader in the production of radiators for heating houses and apartments. Its products are produced under strict control and meet all quality and safety requirements, which makes this company one of the best among manufacturers of bimetallic radiators. They are distinguished by low energy consumption and high performance characteristics. The company's products have innovative design, good strength and excellent corrosion resistance. When using it, there is almost never any extraneous noise, which makes their use comfortable. The structures here are made up of several sections and, if necessary, depending on the model, they can be added or subtracted immediately upon purchase.
• Lammin– brand products are developed using modern Finnish technologies and produced at the best factories in Russia and East Asia. The peculiarity of its products is that they are made from selected materials. They are distinguished by high-quality filling and a neat appearance, which is ensured by high-tech painting. Thanks to the durable coating, the products can withstand various negative factors.
• Royal Thermo is an industrial concern whose production facilities are located in Russia and Italy. It has been operating on the Russian market since 2002 and during this time has earned itself a good reputation. This is a full-cycle enterprise that independently develops technologies, thinks through the design and puts all this into practice. Its production is fully automated, but despite this, quality control is carried out at every stage. In particular, this is why Royal Thermo products comply with ISO 9001 and ISO 14001 standards.
• Radena– the company has a line of bimetallic radiators, made up of several sections, the number of which can reach twenty or more. On average, they can withstand temperatures up to 110 degrees and a working pressure of 25 atm. They are distinguished from the products of other companies by the minimum volume of coolant of 0.10-0.19 liters per section. The products are made in white and blend beautifully into any interior. They have the best price-quality ratio.

If you need something cheaper, then you should pay attention to the products of Radena, Royal Thermo, Rommer. In the assortment of other companies, the emphasis is on mid-price models and premium designs.

Rating of the best bimetallic radiators

When selecting nominees, we studied product characteristics and customer reviews. The winners were included in the rating based on the following parameters:

• Dimensions – height, width, thickness;
• Quality of materials and workmanship;
• Design;
• Available number of sections;
• Installation method;
• The volume of water required for normal operation of the heating system;
• Maximum permissible operating temperature;
• Resistance to pressure drops and its permissible upper limits;
• Focus on the heating system - modern or old-style;
• Corrosion protection;
• Product weight;
• Easy to install.

One of the most important criteria The selection of the best bimetallic heating radiators was based on the ratio of price and quality, as well as the reputation of the manufacturing companies. We analyzed their availability on the market and the duration of the factory warranty.

Which radiators are better - aluminum, cast iron or bimetallic?

Of course, the most durable are cast iron radiators, which last more than 30 years and even longer due to their resistance to pressure changes and the negative effects of low-quality coolant. They look like ordinary batteries. Aluminum and bimetallic models have a flat base and consist of several sections, the number of which, depending on the product, can be changed.

View	Advantages	Flaws
Cast iron	Heats nearby objects	Gives off heat more slowly
	Suitable for any type of heating system	Heavier
	Can easily withstand exposure to coolant of any quality
Aluminum	Affordable price	Less selection
	Easy to install	Holds paint worse
	Large pressure resource	Corrosive instability
Bimetallic	Not afraid of pressure surges	Requires water drainage for summer
	Corrosion resistant	Not the thickest walls
	Light weight	Lasts less than cast iron

Cast iron batteries have almost become obsolete in the form in which they were installed during the Soviet era. They are relevant mainly in rooms decorated in a “retro” style. In modern renovations, bimetallic or aluminum types are most often chosen, although the former are cheaper and more accessible.

The best bimetallic radiators with side connections

This connection method is most common if we're talking about O apartment buildings old building. In them, the pipe junction is most often done vertically between floors, combining into risers. In this case, the coolant is supplied to the upper pipe, and the outlet is to the lower. We analyzed 10 various models and based on the greatest energy efficiency, best quality and availability, we chose the 5 most worthy options.

...The Global Style 500 radiator gives a good effect when heating even large rooms, but experience shows that its operation is affected by the distance from the window sill, floor and walls, which must be clearly adjusted...

Expert opinion

What makes this model the best bimetallic radiator for apartments and houses is its good heat transfer, which allows you to stay comfortably in the house even in the coldest season. This indicator became possible as a result of the large surface of the product and due to the use of aluminum.

The design is highly durable, due to which it can be mounted both with autonomous heating systems and with centralized ones. But still, there is a strict limitation on the working pressure - up to 35 atm. The manufacturer made it sectional, and this simplifies the installation process, since you can reduce or increase the number of sections at your discretion.

Advantages:

• Good build quality;
• Simple design that fits easily into any interior;
• Does not corrode;
• Accurate size and shape;
• Creates a directed air-heat flow.

Flaws:

• Do not use abrasive cleaners to care for the radiator.
• Automatic air valves are required.

This bimetallic heating radiator was selected from the top 10 contenders, which could not match it in terms of economy and efficiency of use. Being made of steel and aluminum, it gives off a lot of heat and does not allow you to freeze even in cool rooms. True, for rooms from 20 sq. m. you need at least 5 sections, although there are no problems with this, since you can always order the required number, but at the same time it cannot exceed 20 pieces. According to reviews, the design heats up quickly due to the small volume of water (0.2 liters per section). Hang it on the wall and it easily fits under the window.

Advantages:

• High quality workmanship;
• The maximum operating overpressure is 40 atmospheres;
• Large margin of safety;
• Resists well against hydraulic and any other loads;
• Beautiful painting, no yellowing;
• High degree of tightness.

Flaws:

• Sometimes they crackle slightly.

Reviews of the Sira RS Bimetal 500 models indicate its neat dimensions, due to which it can be installed even in small rooms with low window sills.

Rifar Base 500×14 is a budget bimetallic radiator designed for wall mounting. Because of this, it remains almost invisible to guests. The manufacturer offers 3 design options in different sizes, which allows you to choose the most suitable design taking into account the square footage of the room. At the same time, this is a standard structure, which includes 14 sections; the company does not offer to add or remove them.

The product weighs almost 27 kg, which may create some difficulties during installation and require outside assistance. Despite the thin fins, the design has an excellent margin of safety and retains heat well. Reviews show a neutral attitude towards the bright white color of the frame, which quickly becomes dirty. At the same time, you cannot clean the surface with anything.

Advantages:

• Good heat dissipation;
• Beautiful design;
• Fast warm-up;
• Withstands pressure surges;
• Resistant to aggressive coolants.

Flaws:

• Factory, standard equipment.

Reviews speak positively about the quality of Rifar Base 500×14 joints, so breakthroughs and floods are out of the question here, and time has virtually no effect on the strength of the products.

This bimetallic radiator is the best representative classic products. It has an optimal height of 415 mm and is easily placed even in small spaces. Thanks to its medium thickness, heat enters the room faster and is maintained at the proper level. Its use is safe, but still you should not exceed the pressure of 36 bar. The pipes are made of steel, famous for its excellent heat-conducting properties, but at the same time, in order to avoid corrosion, it is better not to leave water inside during the off-season.

Advantages:

• Quick connection, side;
• Wide range of options for completing sections;
• Manufacturer's warranty;
• Withstands exposure to even low-quality water;
• High strength;
• Good coverage.

Flaws:

• It is better to use with domestic heating systems.

The Rommer Profi Bm 350 model easily fits into any interior and does not distract attention from it due to its standard design and small size.

The peculiarity of this model is the possibility of its use in heating systems with both low and high quality coolant. The radiator performs well even where it is exposed to high pressure, up to 40 bar. This is slightly more than some of its peers from the rating.

It should also be noted that the paint is of decent quality, which lasts for many years. Unfortunately, here you cannot select the required number of sections; they are offered in 1, 4, 6, 8, 10 or 12. The walls of the product are quite strong and can withstand high pressure, and the steel from which the pipes are made does not deform.

Advantages:

• Two-stage painting technology;
• Small volume of water in the section – 0.2 l;
• Large service area;
• Light weight of 12 kg;
• Warms well.

Flaws:

• One height is 55.7 cm.

The best bimetallic radiators with bottom connection

This method of connecting to the heating system is quite rare. It is mainly used in private houses in which radiators are installed one behind the other. In this case, the coolant moves along the chain, but is not always distributed evenly. Because of this, some pipes may be warmer, others colder. To do this, a circulation pump is used here, creating a coolant current inside. We have studied available options and selected the best bimetallic radiators.

Rifar Monolit Ventil

This bimetallic radiator was included in the rating due to its optimal price-quality ratio. It is very “hardy” in terms of coolants; its sections can withstand water shocks of up to 150 bar. Reviews show that leaks are not detected due to well-designed joints. The heat transfer here is almost impeccable, so the temperature in the apartment or house is maintained at a good level even during prolonged use. But expect that one such design will heat an area of ​​more than 30 square meters. m., no longer necessary.

The Rifar Monolit Ventil radiator has a beautiful White color And high-quality coating, which can withstand moisture and other negative factors. What makes this option beneficial is that it is suitable for both new and old heating systems. For efficient heating It only needs 0.21 liters per section, which indicates high efficiency.

Advantages:

• Factory warranty for 25 years;
• Nice design;
• Withstands temperatures up to 135 °C;
• Smooth surface;
• The optimal height is 57.7 cm;
• Cools down slowly;
• Weight 12 kg.

Flaws:

• There is no possibility to add sections at your own discretion.

The delivery set includes everything necessary to connect the radiator - flow distributors, Mayevsky valve, plugs and valves.

This is another design that has original design due to the vertical arrangement of sections. The standard set includes 18 of them, which provides high heat capacity and allows you to quickly increase the air temperature even in large rooms. Such characteristics can be explained by the good, according to reviews, power of the bimetallic radiator of 2142 W and the small volume of the required coolant of 3.78 liters of water for the entire structure. It is connected at the bottom and the connection elements with the heating system are almost invisible from the outside.

Advantages:

• Withstands temperatures up to 110 °C;
• The walls warm up quickly;
• Beautiful design;
• A simple method of eyeliner;
• Warms well.

Flaws:

• Requires a lot of wall space due to the height of 1440 mm;
• Not a low price.

First of all, this bimetallic radiator differs from other models in the rating in its appearance. It has quite wide sections, due to which it was possible to reduce the cost of the design and not lose any heat transfer. It hangs on the wall and, with an average height of 55.2 cm, easily fits into any space, including under windows. One section holds 0.22 liters of water, and its quality is not particularly important here. Due to the fact that there is less of it in the heating system and it heats up almost instantly, the room becomes warmer much faster than at higher levels.

Advantages:

• Maximum operating temperature – 110 °C;
• High quality parts;
• Good build;
• High-quality surface painting;
• Low sensitivity to sudden change pressure in the system.

Flaws:

• Sold in at least 3 sections.

Which bimetallic radiators are best to buy?

Models with resistance to the chemical composition of the coolant in the range of 6.5-9 pH are considered a good choice. The weight of one section is usually 1.5-2 kg. The average heat transfer rate is 100-185 W. For efficient work the design must withstand a pressure of at least 25 atmospheres. In a quality product, both the collectors and vertical tubes are made of steel. With a standard placement of window sills, you can choose a radiator with a height of about 0.5 m, but in the case of a lower location, models up to 0.35 cm will be needed.

Here is the best bimetallic radiator to buy, depending on the purpose:

• For use in old-style systems, Global Style 500 will be relevant.
• In small rooms you can get by with the Sira RS Bimetal 500 heating device.
• In houses where low-quality coolant is supplied to the pipes, you can use Rifar Base 500 x
• If there are frequent pressure surges in heating systems, then it is worth paying Special attention on Rommer Profi Bm 350.
• If you need a radiator with very fast heating, then the Lammin Eco BM-500-80 has proven itself well.
• For heating areas of about 20 square meters. m. the model Rifar Monolit Ventil 500 x5 will be useful.
• At autonomous heating It's worth considering choosing the Royal Thermo PianoForte Tower x 18.
• In small rooms you can install Radena VC 500.

By choosing the best bimetallic radiator, very soon you will notice how the house will become warmer. The rating presents only those models that have received many positive customer reviews and have been successfully tested in practice. There is also budget options, and premium models, we hope everyone will find a suitable offer!

The unique characteristics of bimetallic batteries make it possible to replace conventional cast-iron radiators, while the heat transfer efficiency and durability of the new radiators is not inferior to traditional ones, and in appearance they are much superior to the old models. Batteries of this type are successfully used for heating a country cottage and for installation in multi-storey city buildings. The steel core is able to cope with the powerful pressure characteristic of centralized networks, and is also resistant to water hammer, from which urban heating plants are not immune.

In addition to strength characteristics, bimetallic products show high resistance to aggressive environments, which is important in urban environments when the coolant is subject to excessive alkalization or has a high acid content.

These devices are lightweight, look attractive, and have high level heat transfer and long service life. Choose a radiator required size is not difficult, since manufacturers have launched the production of various models.

Advantages and disadvantages of bimetallic radiators

The devices in question have positive properties, which distinguish them from other types of heaters:

• Extended service life. A device made with high quality without any violations technological process, will reliably heat the room for at least 30 years;
• The steel base gives this product increased strength;
• The steel core, especially if it is made of high-carbon steel, is not afraid of coolant containing excess alkali and acids;
• High degree of heat transfer (up to 190 W per section);
• The radiator is equipped as standard with a temperature regulator that allows you to reduce or increase heat transfer;
• Large selection of colors and many design solutions appearance products allow you to choose a radiator for any interior.

TO negative qualities The following points can be noted:

• Over the years, different coefficients of expansion of the material can lead to internal friction, which is reflected in the appearance of noise;
• The small inlet and outlet diameters of the radiator pipes, if there are foreign substances in the coolant, can cause clogging. To avoid this problem, it is recommended to install a filter on the supply;
• High price.

Technical and operational characteristics

When choosing a radiator, you should pay attention to its technical characteristics, which are reflected in the product data sheet. Typically, the following information about the device is important for the consumer:

• Power. It is measured in W and determines the ability of the device to transfer the amount of heat into the room at a standard heating network value of 70°C. Using this indicator,
• make calculations required quantity sections for a specific object;
• Strength of the material. This characteristic important when determining the type of heater based on the pressure of the heating network. It is measured in bar and ranges from 15-35 units;
• Limit level of coolant temperature. Any bimetallic radiator can handle temperatures of +90°C;
• Dimensions. It is important to determine the center distance and correlate it with the dimensions of the liner. There are models with this indicator from 200 to 800 mm. The height, width and thickness of the product must comply with the recommended standards for installing a radiator indoors;
• Volume. Characterize the capacity of the radiator in liters, ranging from 0.15 to 0.4 liters;
• Weight. Standard products measuring 580x80x80 mm weigh about 2 kg.

Bimetallic battery design

Radiators of this type produced using complex technology by combining two types of metals. The basis of the product is a steel frame, inside which the coolant moves. The rigidity of steel allows it to successfully withstand high pressure and also resist corrosion.

On the outside, the frame is clad in an aluminum casing. Aluminum can heat up quickly and transfer heat to the atmosphere. The casing is also equipped with special fins that direct the flow of warm air into the room.

Prefabricated models are fastened together using nipples with the installation of rubber gaskets. Such connections can withstand temperatures up to 200°C and network pressure up to 35 atm. Cast models have no internal connections.

Types of bimetallic batteries

Bimetallic radiators are available in two types:

1. Cast. In this case, the battery case is cast in special molds;
2. Sectional. This option is assembled from separate sections, which are joined together using threaded connection.

The convenience of sectional models lies in the ability to add new sections as needed. It will not be possible to enlarge a monolithic battery in this way, but due to the wide range of radiator sizes, they can be selected for any task.

The cost of monolithic models is 20-30% higher than sectional ones.

Both types of bimetallic heating radiators are used for heating installations in residential premises and administrative buildings. Which is better for an apartment depends primarily on the design of the heating network. For standard apartments V multi-storey buildings it is better to use cast products, and in country house Sectional ones can handle the load just fine.

How to choose and what to pay attention to

To decide which radiator to choose, it is necessary to take into account the peculiarities of organizing the heating supply of the house and the following characteristics of the heaters themselves:

• the value of the testing pressure, which is determined when testing the product - this indicator should not be less than the peak values ​​of the heating network;
• if there is a high content of alkali or acids in the heating network, you should choose a heater with a stainless steel or copper core;
• the outer aluminum casing must be of sufficient thickness and not bend under mechanical stress, and the thickness of the rib protruding from the base must be 1 mm or more;
• recommended core wall thickness - more than 3 mm;
• in sectional batteries it is advisable to check the connecting gaskets for elasticity;
• the edge of the battery must have a width of at least 7 cm, this size gives maximum heat transfer;
• minimum guarantee period(less than two years) indicates unreliability of this device, since the average service life of radiators of this type is 20 years.

Monolithic or sectional

Monolithic cast products can withstand significant pressure and hydraulic shocks, so they should be installed in multi-story buildings. Sectional products are not able to withstand such tests due to the weakening of the structure by the threaded connection individual parts, but such heaters are easy to maintain and, if necessary, expand, which is impossible in the case of cast batteries in a private home.

Bimetallic or semi-bimetallic

In addition to standard radiators made of steel (or copper) and aluminum, semi-bimetallic heaters are produced. In these products, the inner core is made not only of steel - it also contains elements of aluminum. Typically, aluminum is used to install vertical pipes.

Such a replacement of the base material significantly reduces the strength characteristics of the product, and in terms of durability in aggressive heating systems, semi-bimetallic radiators differ little from conventional ones aluminum batteries. Connection points aluminum pipe with a steel pipe very quickly become unusable due to the difference in the expansion coefficient of these metals when heated.

Semi-bimetallic radiators are slightly lighter than the original, so when purchasing, you should pay attention to this point, since unscrupulous manufacturers may not indicate the exact parameters of the product. These heaters are closer in characteristics to aluminum ones, so it is better to install them in a private home.

Axle distance

All types of manufactured bimetallic radiators are divided according to the distance between the inlet and outlet. Most often, the distance between the axles is 350 or 500 mm, but some manufacturers produce batteries with an interaxle distance of 200 and 800 mm.

Material of manufacture

Most bimetallic batteries are manufactured with a steel frame and an aluminum shell. The steel core copes well with overpressure network, resists corrosion, and the aluminum shell serves as an excellent heat dissipator. Some manufacturers use high-carbon steel grades, which allows them to achieve higher strength characteristics and durability of the product.

Core.

To a more expensive one, but the most the best option Bimetal radiators include batteries with a copper core. This is actually an eternal material with high strength. The service life of such products is at least 50 years.

The best bimetallic radiators

Retail chains offer many models and brands of bimetallic batteries, both domestically produced and foreign analogues. The reliability rating of bimetallic heating radiators for apartments includes several well-known manufacturers.

Reliable manufacturers

The most well-known and reliable manufacturers include the following companies:

• Global Style. An Italian brand that produces radiators under the following labels: Style, Style Extra, Style Plus. In the product line of this manufacturer, models with standard specifications and products with unique strength characteristics.
• Sira. Also a manufacturer from Italy, which focuses on producing premium products.
• Rifar. Domestic brand. The company launched the production of heaters with different meanings center distance from 200 to 500 mm. The quality of the products is confirmed by a 10-year guarantee.
• Tenrad. The manufacturer from Germany produces heaters for private homes equipped with an autonomous heating system, but the product line also includes devices that can withstand the high pressure of a centralized heating network.
• WARMA. Joint Russian-Chinese venture. The technical specifications are developed in Russia, and the assembly of finished products is carried out in China. Radiators from this company are used for both autonomous and central heating systems.
• Könner. Russian company producing bimetallic batteries production facilities China. The products of this company are also universal. Features include increased anti-corrosion resistance of the metal and high strength, which allows it to withstand powerful hydraulic shocks.
• TENRAD. German company, placing orders for production in China. All products undergo quality testing by German engineers.
• Radena. The development of radiator designs and control of finished products is carried out in Italy. Made in China. The center distance used is from 150 to 500 mm. Most models are excellent for Russian operating conditions in the central network.
• Fondital. Italian manufacturer of predominantly aluminum heaters. Bimetallic products are also present in the product line, and in terms of quality and cost they can be classified in the premium segment.

This review will allow the consumer not to get lost in a variety of brands and choose a quality product.

Model	Distance between axles, mm	Section size (WxHxD), mm	Maximum working pressure, Bar	Thermal power of the section, W
Rifar (Russia)
Rifar Forza 350	350	415*90*80	20	136
Rifar Forza 500	500	570*100*80	20	202
Rifar MONOLIT 350	350	415*100*80	100	136
Rifar MONOLIT 500	500	577*100*80	100	194
Global Radiatori (Italy)
Style 350	350	425*80*80	35	125
Style 500	500	575*80*80	35	168
Style Plus 350	350	425*80*95	35	140
Style Plus 500	500	575*80*95	35	185
Royal Thermo (Italy)
BiLiner Inox 500	500	574*80*87	20	171
BiLiner 500	500	574*80*87	20	171
Tenrad (Germany)
Tenrad 350	350	400*80*77	24	120
Tenrad 500	500	550*80*77	24	161
Gordi (China)
Gordi 350	350	412*80*80	30	460
Gordi 500	500	572*80*80	30	181
Sira Industrie (Italy)
Gladiator 200	200	275*80*80	30	90
Gladiator 350	350	275*80*80	30	140
Gladiator 500	500	423*80*80	30	185
Grandini (Italy)
Grandini 350	350	430*80*82	16	130
Grandini 500	500	580*80*80	16	167

Models, prices and their characteristics

To the most popular and quality models The following bimetallic radiators include:

• WB350 from WARMA BIMETALL. This product has dimensions: height – 41 cm, depth – 8 cm, center distance – 35 cm. Refers to prefabricated batteries. The number of sections varies from 5 to 6. The power of one section is 140 W. Maximum network pressure up to 25 atm. 10 year warranty. The cost is 450 rubles for one section.
• WB500 from WARMA BIMETALL. Dimensions: height – 56 cm, depth 8 cm, center distance – 50 cm. Number of sections from 6 to 7. Power of one section 180 W. Maximum network pressure up to 40 atm. 10 year warranty. The cost is 600 rubles for one section.
• Könner. Available with center distances of 350 and 500 mm. Both options can withstand a network pressure of 30 atm. Power from 140 to 190 W. The maximum coolant temperature is 110°C. The volume of one section is 0.14 – 0.18 l. Dimensions: height – 413 and 560 mm, depth – 80 mm, width of one section 80 mm. 15 year warranty. The cost for one section is about 500 rubles. The number of sections is from 4 to 12.
• TENRAD BM350. Maximum pressure 24 atm. The power of one section is 120 W. The coolant temperature is no more than 120°C. The volume of one section is 0.15 l. Dimensions: height – 400 mm, center distance – 350 mm, depth 77 mm, width of one section 80 mm. Cost from 600 to 700 rubles per section. Number of sections from 4 to 12. 50 year warranty.
• Radena Bimetall CS 500. Permissible network pressure 25 atm. The power of one section is 120 W. The coolant temperature is no more than 110°C. The volume of one section is 0.13 l. Dimensions: height – 552 mm, center distance – 500 mm, depth 85 mm, width of one section 80 mm. Cost from 650 to 800 rubles per section. Number of sections from 4 to 12. 15 year warranty.

Calculation of the number of required sections

To calculate the required number of radiator sections to effectively heat a room, you will need to determine the area of ​​the room and know the heat transfer power of one section in W. It is believed that to create comfortable living conditions, 0.1 kW (or 100 W) of thermal energy per person is sufficient. square meter, which means that to obtain the required number of sections you need to carry out the following calculations:

1. Find the area (P) of the room (for example, 6 x 3 = 18 m2).
2. Based on the technical characteristics of the product, determine the power (M) of one section in W (for example, 170 W).
3. To determine the number of sections (K), you need to multiply the area by 100 W and divide by the power.

The formula for calculating the number of sections looks like this: K=P*100/M

Installation of bimetallic radiators

If necessary, you can install bimetallic heating radiators yourself. Before starting work, you should read the instructions that came with the equipment and correctly calculate the location of the battery.

The radiator must be placed in the middle of the window opening, the distance from the installation surface is from 3 to 5 cm, the distance from the floor and window sill is at least 10 cm. Having marked the installation location, you can begin installation. The sequence of actions is as follows:

1. Brackets are installed.
2. The radiator is hung on the brackets.
3. Connect to the coolant.
4. Install a thermal valve or drain valve.
5. A Mayevsky valve is installed to bleed off excess air.

Upon completion of all work, the protective film is removed from the surface of the radiator.

Video on the topic

Bimetallic radiators are a new trend in residential heating. Such heaters can increasingly be found in apartments and private houses. And in this article we will help you figure out which bimetallic heating radiators are better and how they are superior to aluminum and semi-bimetallic devices. You can also find important tips on choosing a heating radiator and interesting videos on this topic.

Bimetallic radiators are quickly gaining momentum Source kvartirnyj-remont.com

Bimetallic or semi-bimetallic radiators

Bimetallic heating devices are steel pipes connected in a cold welding which are coated with a layer of aluminum. Thanks to this, hot water does not interact with the outer shell of the radiator, which avoids corrosion. Moreover, aluminum is applied in the form of shaped plates, and this significantly increases the heat transfer area.

There are also copper cores for bimetallic radiators. They are suitable if the coolant is water with antifreeze. This composition can quickly destroy steel, but copper is resistant to it.

Semi-bimetallic radiators have a core made of two metals. All vertical channels are steel, and horizontal ones are aluminum. The disadvantage of such devices is that they are not suitable for water with a high alkali content. They definitely require a coolant purified from impurities.

Now about which heating radiators are better. For central heating systems, bimetallic devices are more suitable because they are resistant to pressure drops and low-quality contaminated coolant.

For an apartment it is better to choose bimetallic heating devices Source homeli.ru

Semi-bimetallic radiators are more efficient, but they require ideal conditions. They are more suitable for private homes, and are an order of magnitude more expensive than bimetallic devices.

Bimetallic or aluminum radiators

A little about which radiators are better, aluminum or bimetallic. In relation to the coolant, the advantage is clearly on the side of the latter. Aluminum does not withstand prolonged contact with water with large amounts of impurities.

Also, bimetallic radiators are more resistant to high pressure than aluminum ones. After all, the core is made of alloy steel, which has increased fracture and tensile strength.

However, in some aspects, bimetallic heaters are inferior to aluminum ones. They are bulkier and heavier, cost significantly more, and the steel core reduces energy efficiency and reduces heat exchange with the room.

Externally, aluminum and bimetallic radiators are very similar Source zamenabatareymoskva.ru

Bimetallic heaters definitely require increased heating costs. But they are more durable and more suitable for urban heating networks. At the same time, aluminum radiators are ideal for private homes, where owners can control the pressure and change the water in the system.

On our website you can find contacts construction companies which offer various things, including heating. You can communicate directly with representatives by visiting the “Low-Rise Country” exhibition of houses.

Types of bimetallic radiators

There are two main types - sectional and monolithic. Below we will tell you more about them and help you figure out which one is best for you.

Sectional radiators

They are assembled from several sections. Often made in the form of a “layer cake” made from heating plates. This discovery makes it possible to significantly increase the heat exchange area with environment. But there is a big drawback: any coolant destroys the joints of its component parts. As a result, a relatively short service life.

Sectional heaters consist of several parts Source forum.usolie.info

Monolithic radiators

Also have large area heat exchange, therefore they are in no way inferior to sectional heaters. One section produces approximately 100-200 W. Monolithic radiators are manufactured according to the principle new technology: The body is cast entirely and then pressure treated. A layer of aluminum is applied under pressure on top of the steel frame.

Monolithic heaters are one piece Source www.teplodvor.by

The advantage of monolithic radiators is obvious. The service life is twice as long and is not 25 years, like sectional ones, but 50. But at the same time, they cost about a fifth more. Their disadvantage is that they do not allow adding additional sections and thereby adjusting the power.

If you think about the question of which heating battery is better for apartments in high-rise buildings, then the answer is clear - monolithic. The point is a large pressure drop due to altitude.

Rating of bimetallic heaters

Below we will help you figure out which batteries are best to choose for your home or apartment. Let's consider the operating conditions, workmanship and some nuances.

Global Style Plus 500

Suitable for systems central heating. Well adapted to high blood pressure and strong acidity of the coolant. The sections are connected by pipes with a silicone gasket that protects against leaks. The steel contour is crimped under high pressure, which allows it to withstand strong water pressure. Another advantage of this model is the high quality of painting.

Bimetallic heater Global Style Plus 500 Source m.onlinetrade.ru

But the downside will be the rather high cost. On average on the market it is 9,500 rubles. However, it is believed that the model is worth the money.

On our website you can find contacts of construction companies that offer services of any complexity. You can communicate directly with representatives by visiting the “Low-Rise Country” exhibition of houses.

Monolithic heater Russian production, quickly gaining popularity. Made in the form of a single steel block, which eliminates the possibility of leaks. The radiator does not require a constant coolant temperature. Withstands pressure on the internal circuit up to 100 atmospheres. Rifar Monolit 500 provides high heat output with minimal energy loss.

Rifar Monolit 500 – a good heater from domestic manufacturer Source climatestandart.com

But there is one caveat: the dimensions of the Rifar Monolit 500 heating radiator are fixed, like any monolithic device. Therefore, if it turns out that there is not enough of it or, on the contrary, there is too much, simply adding or subtracting sections will not work.

Video description

Sira RS Bimetal

One of the quietest heating radiators. Can even be installed in bedrooms. One block can include up to 12 sections, the number of which can be adjusted depending on the area of ​​the room. The inner shell is made of special steel, which is not subject to corrosion and can be used in combination with low-quality coolant. Sira RS Bimetal provides a high level of heat transfer and is designed for a maximum pressure of 40 atmospheres, and the radiator is adapted to the water hammer typical of a central heating system.

Sira RS Bimetal heating radiator can often be found in apartments Source on-lineclimat.ru

But this model has one drawback: the quality of painting leaves much to be desired. Despite this and the rather high cost, many experts, when asked which bimetallic radiators are better, will answer Sira RS Bimetal.

Fourth place in our ranking of bimetallic radiators is occupied by Royal Thermo Revolution Bimetall 500. A very popular model from a domestic manufacturer. The device is adapted to fairly harsh operating conditions and provides good performance. The structure is wall-mounted, sectional, with an adjustable number of segments, maximum amount of which there are 14 pieces. The Royal Thermo Revolution Bimetall 500 has a side connection. The heater is designed for operating pressure up to 30 atmospheres.

Bimetallic heating radiator Royal Thermo Revolution Bimetall 500 Source smauro.ru

The main factor that makes the model one of the most widespread in Russia is the price. You can buy a heater for an average of 4,100 rubles. However, it is worth remembering that with sharp increases in coolant temperature, the efficiency of the device decreases significantly.

How to choose a bimetallic heater

When purchasing a device, it is important to consider whole line nuances. When going to the store, you need to know exactly what power the radiator should produce, what dimensions it should have, and to what conditions it should be adapted. Therefore, we will help you figure out which bimetallic radiator is best for your home.

Calculation of the number of sections

This calculation is made based on the area of ​​the room and the energy efficiency of the section of a particular device. It is believed that for every 10 m2 of room there should ideally be 1 kW of power. To calculate, you need to divide the area of ​​the entire room by 10, and then divide the result by the power of one section. Then the entire value must be increased by 10% and rounded to the nearest whole number. This is how heat loss associated with external factors. The result will be the optimal number of radiator segments for a specific room.

A sectional bimetallic radiator can be adapted to a specific room Source c-o-k.ru

If, due to some characteristics of the area or the house, the sectional heater does not provide the required temperature level, additional segments can be added to it. This cannot be done with a monolithic radiator.

Things to consider

There are several points that are worth paying attention to in order to understand which heating radiator is better in a particular case:

It's better when heater size is maximum, because in this case the energy efficiency of the device is the highest. But it is important that the distance to the floor is at least 12 cm, and to the window sill - at least 10 cm.

Ideally positioned bimetallic heating radiator Source tengrinews.kz

Capacity– one of the most important parameters. The larger it is, the better the radiator heats. Therefore, devices with small volume sections require the highest quality coolant without impurities.

More suitable for apartments monolithic radiators because they are able to withstand sharp jumps pressure, at the same time, cheaper sectional models can be used for autonomous heating systems.

Video description

An interesting video about how to choose a bimetallic radiator for an apartment:

Briefly about the main thing

Bimetallic radiators are superior to semi-bimetallic models in durability and unpretentiousness, and they are also more affordable.

Bimetallic radiators are more durable than aluminum ones, but are more expensive and take up more space.

According to the structure, there are two types of bimetal radiators: sectional and monolithic.

The most popular models of bimetallic radiators are Global Style Plus 500, Rifar Monolit 500, Sira RS Bimetal and Royal Thermo Revolution Bimetall 500.

To choose the right bimetallic radiator, you should take into account its capacity, dimensions, and also need to calculate the number of sections for a specific room.

A little more attention!

Do you think bimetallic radiators are best option price-quality ratio or can they be classified as expensive devices? Write in the comments which heaters you prefer.

For the right choice heating radiators you need to know about their main technical parameters. Otherwise, the result may not meet expectations. Really important parameters There are not many radiators, so even a non-professional can easily figure them out.

Features of choosing heating devices

Now people no longer need to hide or, because... modern devices can become a worthy decoration of any interior. Radiators sold today may differ in color, size, material and general style implementation, so it will not be difficult to choose the most suitable option.

Attention! Despite the fact that we are accustomed to light-colored batteries, the heat transfer of black devices is approximately ¼ higher solely due to color. Although when choosing a color, it is better to focus on the design of the home and personal preferences.

Regarding the shape, it must be streamlined. For safety reasons, it is advisable to avoid sharp corners altogether, especially if children live in the house. Please check the strengths and weaknesses each of existing species radiators to determine which one is more suitable for a particular room. The first thing you should pay attention to is the operating pressure of the devices.

Depending on the material, radiators are divided into:

The above-mentioned pressure, heat transfer coefficient, heat capacity, resistance to mechanical and chemical damage, as well as service life depend on the material.

Radiators in the interior

Also pay attention to the method of connection to the heating main. The connection can be side, bottom and universal. It is typical that modern radiators provide all these connection methods.

Attention! The environmental friendliness of the material used in the manufacture of heating devices is also very important. There should be no formaldehyde in the internal elements, and high-quality polymer coating on the surface is also welcome.

Now in more detail about each material.

Characteristics of aluminum radiators

Heating devices made from are considered one of the most popular types of radiators. Aluminum is a light and ductile metal, therefore, batteries made from it weigh a little and have increased heat transfer.

The devices consist of sections, each of which is a set of interconnected plates. Thanks to this, heat saving here is also at a fairly high level.

Advantages similar units are as follows:

At the same time, after turning off the heating, such radiators cool down quite quickly. Among the others shortcomings worth highlighting:

• instability to chemical influences (the problem can be solved by polymer coating on the inner surface);
• low strength;
• poor quality of the threaded connection in the top valve for releasing air from the system.

In view of this, before purchasing it is necessary to inquire about the operating pressure of the heating system. The maximum pressure of a particular product must be looked at in the data sheet, because for different models it is different.

But still, according to its characteristics, aluminum is excellent for the manufacture of radiators, and its fusibility has made it possible to significantly expand the lineup. Today you can choose exactly the battery that fits perfectly into the interior of your home.

Table 1. Comparison of aluminum batteries from well-known brands

Manufacturer	Model	Weight, kg	power, kWt	Volume, l	Pressure, bar.	Dimensions, cm	Distance between axles, cm
1. Rifar, Russian Federation	Alum 500	1,45	0,183	0,27	20	9x8x56.5	50
2. Fondital, Italy	Calidor Super-500	1,32	0,193	0,3	16	9.7x8x55.7	50
2. Rovall, (Italy)	Alux-500	1,31	0,179	0,23	20	10x8x54.5	50
3. Radiatori 20000 S.p.A.	500R	1,6	0,199	0,58	16	9.5x8x57.7	50
4. Faral	Green HP-350	1,12	0,136	0,26	16	8x8x43	35
5. Faral	TrioHP-500	1,58	0,212	0,5	16	9.5x8x58	50

Aluminum radiators from STOUT Bravo are ideal for installation in apartments and houses with individual heating. These heating devices are manufactured at the GLOBAL plant, Italy. Each stage of production is controlled by European specialists. Each section is manufactured by injection molding and is a monolith of two collectors and fins connecting the sections. Available center distance is 350 or 500 mm. Manufacturer's warranty – 10 years.

Prices for popular models of aluminum heating radiators

Aluminum heating radiators

Characteristics of bimetallic batteries

The main difference between bimetallic radiators is the use of two different metals– steel to create the core and aluminum to assemble the body. Thanks to this, the rod is very strong. Another advantage of such products is their high working pressure, which can reach 50 (!) atmospheres. Moreover, steel works well even with water that contains various impurities, while aluminum heats up quickly and gives off maximum heat.

In short, the use of two metals at once made it possible to obtain radiators that have the advantages of each of them. Therefore, it is quite obvious that the cost of these devices is the highest among all possible options.

Attention! are used primarily for heating industrial and public facilities. In residential buildings they are rare due to their high cost.

The service life is 20-25 years, which is quite normal.

Table 2. Comparison of bimetallic radiators

Manufacturer/Model	Working fluid temperature, ᵒС	Weight, kg	Volume, l	power, kWt	Operating pressure	Section dimensions, cm
1. Sira Group/Gladiator-500	110	1,6	0,42	0,185	30	8x8x42.3
2.Gordi/Gordi-500	100	1,7	0,3	0,181	30	8x8x57.2
. Rifar/Rifar Monolit-350	135	1,5	0,18	0,136	100	8x10x41.5
4.Tenrad/Tenrad-500	120	1,44	0,22	0,161	24	7.7x8x55
5.Global/Style-350	110	1,56	0,16	0,125	35	8x8x42.5

All the advantages of using bimetallic radiators are clearly expressed in the design of STOUT Space heating devices. These radiators are easy to install, they are suitable for rooms of any design and have reliable designs. The maximum pressure that a heating device can withstand is 100 atmospheres. Production - Russian plant "RIFAR", the largest in the country. Service life - 25 years, warranty from the manufacturer - 10 years. available from 4 to 14 - you can complete any object and select a radiator for a room of any size.

Prices for bimetallic batteries

Bimetallic batteries

Characteristics of cast iron radiators

Such batteries are the most common and well-known option for everyone, since they are installed in most standard apartments. Agree, old cast iron appliances can hardly be considered stylish and attractive. New models look better, but in terms of aesthetic indicators they are still significantly inferior to devices made from other materials.

As you know, cast iron is very heavy. Batteries made from it weigh a lot, which cannot but affect the complexity of transportation and installation.

Let's consider their main advantages.

But cast iron also has flaws, among which:

• significant weight;
• slow heating;
• unaesthetic.

Attention! Despite the abundance of more modern analogues, many prefer to install cast iron batteries, trusting what has been tested for decades.

Table 3. Comparison of cast iron batteries from the most famous manufacturers

Manufacturer/Model	Weight, kg	Volume, l	Heating area per section, m²	Power, W	Pressure, atm.	Dimensions, mm
1. Konner, Modern	Up to 4.75	Up to 0.96	-	Up to 150	12	80x60x565
2. World Cup-3	Up to 7	1,38	0,25	156	9	120x90x570
2. World Cup-2	Up to 6.3	0,8-0,95	0,2	100-142	9	100x80x570
2. World Cup-1	Up to 4.8	0,9	0,1-0,16	110	9	70x80x570
5. MS-140	Up to 7.1	1,45	0,24	160	9	140x93x588

Prices for popular models of cast iron radiators

Cast iron radiators

Low carbon steel is used in the manufacture of these devices. For protection purposes, the surface is coated with special enamel. If good quality, then they have excellent operational parameters, including:

• strength;
• reliability;
• corrosion resistance;
• durability;
• resistance to various types of aggressive substances.

Such batteries can be tubular or panel.

Tubular devices

Polymer-coated steel pipes are used for their assembly. High Quality. Maximum load which the devices can handle depends solely on the thickness of the pipe walls. It is desirable that the pipes are made of stainless steel.

The service life of tubular devices significantly exceeds that of panel devices and is about 30 years. It is possible to connect using all the methods described above. The operating pressure is 10-16 atmospheres; more detailed data should be clarified in the product data sheet.

Prominent representatives of tubular radiators are models produced by Loten:

• Loten Gray V;
• horizontal LotenGrey Z.

These radiators are made of steel profile pipe having rectangular section. In addition to providing comfortable heating, the presented radiators demonstrate the latest trends in the design of heating devices, fitting perfectly into the interior of any home.

When creating Loten tubular radiators there were two main ideas:

• create high-quality heating equipment: for the manufacture of radiators, high-strength metal with a wall thickness of 2.5 mm is used, due to which these heating devices have an operating pressure of 16 atm. Radiators withstand test pressure of 25 atm;
• at the same time turn the battery into a stylish element of the home interior, office space, public locations, etc.

The presented heater models may have different quantity sections, from 4 to 12. The length of sections varies from 750 to 2000 mm. Price of each heating element is directly dependent on the following parameters:

• number and length of sections;
• connection type (side/bottom).

At no extra charge, you can purchase radiator models painted in colors that are at the peak of popularity in relation to interior design:

• matte black;
• classic white;
• soft beige;
• concrete gray.

However, lovers of bright furnishings can order any other colors and shades.

The presented radiator models are suitable for connection to a central as well as an autonomous system. The size range is really wide; you can equip the presented radiators like a cozy small one-room apartment, and a spacious country mansion.

Each model can be with side or bottom connection. Heating systems that are suitable for this battery can be:

• single-pipe;
• two-pipe.

High quality material and laconic style products will allow them to take a place not only in the apartment for many years, but also in the list of your preferred interior items. Their peculiarity is that they have a long service life (warranty - 5 years, service life - 30 years), so you won’t have to think about changing batteries soon. This means you can confidently trust the manufacturer and make a choice in favor of the devices reviewed.

Panel instruments

As the name suggests, such radiators are made in the form of panels. To do this, a certain number of steel plates are connected to each other. Thanks to this assembly, high heat capacity is achieved, while the thickness of each individual plate is insignificant. In addition, they weigh a little and provide the ability to connect in all available ways.

Attention! Before purchasing new heating devices, look at how your old ones are connected. It is advisable that new batteries do the same.

Price panel radiators slightly higher than average, the working pressure is 10 atmospheres. According to experts, such units are best used in autonomous heating systems. As for city apartments, the use of such batteries is unacceptable due to too high pressure in the central system.

Table 4. Comparison of steel radiators with dimensions of 50x50 cm from the most famous manufacturers

Manufacturer	Connection	Weight, kg	Volume, l	Power, W (at +70ᵒС)	Extremely permissible temperature liquids, ᵒС	Pressure, atm.
1.DeLonghi RADEL(Italy)	Lower	14,9	3,1	1079	110	8,7
2. Purmo (Finland)	Side + bottom	13,6	2,6	926	110	10
3. Korado Radik (Czech Republic)	Side + bottom	15,6	2	914	110	10
4. “Lideya” (Belarus)	Side + bottom	15,1	3,3	1080	110	8,6
5. Buderus (Germany)	Side + bottom	14,1	3,15	913	120	10
6. Kermi (Germany)	Side + bottom	17,7	2,7	965	110	10

Prices for steel radiators

Steel radiators

As a conclusion

It is worth noting that any of the described types of batteries can be used for heating systems in residential premises. Although the purchase of bimetallic devices is often impractical, because their advantages are almost the same as those of aluminum, and the cost is several times higher. Therefore, it is better to let them continue to remain in industrial and public facilities.

It is undesirable to install aluminum appliances in apartments due to pressure drops in the system, which negatively affect the metal. The optimal and proven option for apartments over the years is cast iron batteries. One way or another, you need to focus on financial opportunities and personal wishes.

For those who do not want to dive into independent calculations, we recommend using a special calculator for calculations, which takes into account almost all the nuances that affect the efficiency of heating a room.

Are the most modern radiators among those currently existing. They can be installed without problems, provide a lot of heat, look attractive, and are not capable of spoiling the interior design. However, stores today sell different radiators, which differ in technical and design characteristics. You can find out which ones are better to choose if you look at the ratings by manufacturer and features.

The difference between a semi-bimetal and a bimetal

Russian bimetallic radiators

When considering the rating of bimetallic heating radiators for the home, one cannot fail to mention Russian products. One of the most famous is the company 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, operating 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 a company that produces some of the best devices on the domestic market. They can withstand pressures up to 150 bar, and the 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 bimetallic radiators of the Forza brand

These devices are popular for installation in central systems heating. In them, the manufacturer took into account the requirements and operating features of domestic heating systems. On sale you can find models whose center distance is 200 and 350 mm, this allows you to maintain style in rooms with different height restrictions at installation points. A special feature of these radiators is the closed rear surface, which allows the radiator to be used 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 provides a 25-year warranty on its products, promising uninterrupted operation for 15 years. In this case, it is necessary to comply with the rules of operation, transportation and installation.

Other countries

Before purchasing the devices described, 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. The sectional heat transfer is 167 watts; as for the operating pressure, the maximum can be 20 bar.

It would be fair to mention the Japanese company REGULUS-system, which produces radiators with a copper core. By purchasing this product, you can count on a 25-year warranty. The operating pressure of these devices is 15 bar, and the temperature of the circulating water can reach 110 °C. Chinese manufacturers also supply their heating products to the market. Their radiators are cheaper compared to famous brands, however they have attractive design and good finishing. With a modest budget, you can purchase radiators from a Chinese manufacturer, however, as practice shows, they can withstand less impressive pressure.

Features of bimetallic radiators of the MARS brand

Bimetallic heating radiators, the ratings of manufacturers of which are presented in the article, are offered for sale and South Korea, which operates under the Mars brand. These products are distinguished from competitors by their specific consumer characteristics, which are focused on the use of heating devices in Russian systems. In this case, the equipment may be exposed to unstable high pressure and low quality coolant.

The described option is an ideal solution, which is characterized by high wear resistance, efficiency and energy efficiency. The rating of bimetallic heating radiators for an apartment would not be complete without this company, which manufactures radiators with a copper collector; it completely eliminates corrosion.