Which company is better to buy bimetallic heating radiators? Choosing a heating radiator manufacturer: the best of the best

Bimetallic batteries today occupy one of the leading places in popularity. They are inferior in this position, probably, only to the usual cast-iron radiators, and even then, most likely, only due to the extreme prevalence of the latter, the adherence of many consumers to established traditions, and a kind of “inertia of thinking.”

Bimetallic radiators are increasingly being chosen for installation in the heating circuit of both a private house and a city apartment, since they, unlike aluminum and steel, have a pronounced resistance to increased pressure loads and temperatures. However, when choosing these heating devices, it is very important not to run into low-quality fakes or purchase products from a manufacturer that has not yet passed the test of time. Therefore, let's consider the question formulated in this way: “bimetallic rating of manufacturers” - since this selection criterion plays far from a secondary role.

It is very difficult to give an accurate assessment of all bimetallic radiators on sale. Therefore, the publication will consider only a few companies, but they have already gained indisputable authority with the quality of their products.

General information about bimetallic radiators

Before moving on to considering the products of various manufacturers, a few minutes of attention should be paid to the design of these heating devices. It’s worth figuring it out, if only so as not to purchase aluminum batteries at the cost of bimetallic ones, since they look very similar in appearance, but the performance is at a completely different level, and the difference in price is considerable.

Their outer heat exchange casing has almost the same shape and is made of the same material - aluminum. But that's where the main similarities end.

Bimetallic battery models can be divided into two parts - internal, made of steel, and external, heat-exchange, made of aluminum - hence the name. The steel vertical channels of each section consist of pipes that are connected by welding in the lower and upper parts with horizontal sections of larger diameter, which form collectors when assembling the battery. All this pipe steel structure intended for coolant circulation.

Sections can be assembled into a single battery using a threaded coupling connection; factory welding is less commonly used. Depending on the type of this connection, the battery can be sectional, collapsible, or a block one-piece design. A single block may include several (for example, 3÷4) sections, but if necessary, it is quite possible to add the required number of sections to it or assemble a battery from several such blocks.

Steel channels are much more resistant to aggressive components of the central heating system coolant than all-aluminum batteries. Therefore, the permissible acid-base indicator (pH) of the coolant can lie in an extended range, from 5 to 11 units - aluminum batteries have never even dreamed of such indicators.

The internal steel tubes are a kind of “skeleton” of the bimetallic radiator, which makes the entire structure more rigid and durable. Steel, especially if it has protective covering, or if high-quality stainless steel is used for the manufacture of channels, it is inert to corrosive processes, and the connection of such pipes is able to withstand increased pressure.

This type of battery has excellent heat dissipation, and this is due to the fact that steel is capable of accumulating and retaining heat when warming up, and an aluminum outer casing with a sufficiently large area, due to the high thermal conductivity of this metal, effectively transfers thermal energy to the premises.

You might be interested in information on how it is calculated

Almost everything modern designs bimetallic devices are equipped with additional ribs - “petals”, which form convection channels. And the more there are, the larger the heat exchange area and the higher the heat transfer from the heating device. Moreover, these elements are configured in such a way that convection currents of warm air are directed towards the room.

High-quality bimetallic radiators must be designed for a pressure of at least 40 bar, therefore, when choosing them, you need to pay special attention to this parameter. It is usually indicated as used when testing products. You shouldn’t be surprised at such a high figure - such pressure may well be caused by water hammer in the central heating system.

By the way, bimetallic radiators fully reveal their operational capabilities precisely under conditions of high pressure and heating temperature, therefore they are preferable for central heating systems. And if this type of battery is planned for an autonomous system, then you will have to install a powerful water pump in it, which will create the necessary coolant circulation pressure.

You might be interested in information about what

Popular manufacturers of bimetallic radiators

The Russian market offers products from various manufacturers, both domestic and foreign, and their products differ in their characteristics and price levels. To give an idea of ​​these parameters, a number of models will be considered below. bimetallic radiators, manufactured by different companies.

And it’s worth starting with the most affordable option.

Company "WARMA"

"WARMA" is a Russian-Chinese company that produces sectional cast bimetallic radiators. Production facilities are located in China, but they are equipped with high-quality European equipment, and technical control of manufactured products is carried out by Russian specialists.

These products fully comply with GOST 31311-2005 and all other standards of the Russian central heating system.

Bimetallic batteries “WARMA” are designed for installation in autonomous circuits of private houses and high-rise apartments connected to heating plants.

WARMA BIMETALL models are produced in two versions - WB350 and WB500. They differ in the center distance and, accordingly, in some other operational parameters. The main characteristics of these batteries are summarized in the table below.

The steel core of these radiators is made of carbon steel - its vertical channel has a wall thickness of 2 mm and an internal diameter of 20 mm, and the thickness of the steel of the horizontal collector sections of the sections is 4 mm.

The manufacturer declares the following technical and operational characteristics of its products:

Name of parameters	Radiator model “WARMA BIMETALL”, numerical parameters
	WB350	WB500
Working pressure, atm.	25	25
Test pressure, atm.	40	40
	130	180
	110	110
Hydrogen index, pH	6-10,5	6-10,5
Section volume, l	0.17	0.23
Section weight, kg	1.45	1.64
Center distance, mm	350	500
Section height, mm	410	560
Section depth, mm	80	80
Section width, mm	80	80
	1	1
Radiator color	White	White
Guarantee	10 years	10 years

To make it easier for the consumer to decide on the number of WARMA radiator sections needed to heat the room certain area, the manufacturer provides tables indicating the recommended solution.

Model WB350 with a height of 410 mm, a depth of 80 mm and an interaxial distance of 350 mm, is assembled into batteries from a different number of sections and has the following heating capabilities:

Number of sections in the battery, pcs	Radiator width, mm	Heat dissipation from battery, W.	Room area, m²
4	320	520	5÷6
5	400	650	6÷7
6	480	780	8
7	560	910	9
8	640	1040	10
9	720	1170	11÷12
10	800	1300	13
11	880	1430	14
12	960	1560	15÷16

The WB500 model, having a height of 560 mm, a depth of 80 mm and an interaxial distance of 500 mm, composed of a one-piece structure, also of a different number of sections, has greater heat transfer, which is:

Number of sections in the battery, pcs.	Radiator width, mm	Heat dissipation from battery, W.	Room area, m²
4	320	720	7
5	400	900	9
6	480	1080	10÷11
7	560	1260	12÷13
8	640	1440	14
9	720	1620	16
10	800	1800	18
11	880	1980	19÷20
12	960	2160	21÷22

In order not to return to this issue again, it should immediately be noted that this approach to determining the number of radiator sections based only on the area of ​​the room is very approximate. It does not take into account many other features of the room and the way the batteries are installed. Therefore, in the appendix to this article we will provide a convenient universal calculator that allows you to calculate the number of sections of a radiator of any brand with high accuracy.

The cost of one section of the “WARMA” radiator is approximately 450÷500 rubles for the WB300 model, 600÷630 rubles. for model WB500. The price level, naturally, may vary somewhat in different regions of the country.

Radiators "Könner"

“Könner” - despite the clearly German-language name, it is registered under this trademark Russian company. Its products (again, completely Russian-made) are in no way inferior in quality to other European analogues, since they are designed on the basis of modern technologies and taking into account the characteristics of the regions of Russia. Könner's main production facilities are located in China.

The company began its work on the production cast iron batteries about 25 years ago, but responded sensitively to market demands, and launched the development and production of more modern devices heating. So, already at the beginning of the 2000s in construction stores Russia began to receive aluminum and bimetallic radiators of its own design. For this short term The products have become quite popular due to their affordable prices and high quality.

The company's engineers, knowing the special specific conditions of the Russian central heating system, improved and adapted the technical characteristics of the devices, the design of which was taken as a basis. That is why these radiator models compare favorably with other foreign analogues. Due to their reliability, Könner radiators are suitable for installation in both central and autonomous heating systems.

Heating devices of this brand have high anti-corrosion characteristics, have good resistance to baric loads, and can easily withstand water hammer. Radiators owe their reliability to durable vertical pipes and a horizontal collector, which are made of high-alloy steel and form the backbone of the structure. Die-cast aluminum housing with a large contact area provides excellent heat dissipation.

The high quality of Könner products is confirmed by international ISO certificates and full compliance with domestic GOST 31311-2005, section “Heating Appliances”. Products from this manufacturer have repeatedly taken first place in the Russian Federation in terms of consumer demand.

The technical characteristics of these products are presented in the table:

Name of parameters	“Könner” radiator model, numerical parameters
	350	500
Working pressure, atm.	30	30
Test pressure, atm.	44÷45	44÷45
Heat transfer of one section, W.	140	190
Maximum coolant temperature, ˚С	110	110
Hydrogen index, pH	7-9,5	7-9,5
Section volume, l	0.14	0.18
Section weight, kg	1.35	1.75
Center distance, mm	350	500
Section height, mm	413	560
Section depth, mm	80	80
Section width, mm	80	80
Inlet diameter, inch	G 1"	G 1"
Radiator color	White	White
Guarantee	15 years	15 years

Bimetallic radiators "Könner" go on sale in sectional and block versions. The block can include from 4 to 12 sections. The price for one section averages from 400 to 500 rubles. It is more profitable to purchase a block version - prices for a block decrease as the number of sections increases, and can even be less than 400 rubles per section.

Radiators "TENRAD"

"TENRAD" - a company producing radiators, was established in 2005 in Germany in the city of Dresden. The enterprise was organized by young talented engineers working in the design of heating systems.

Like many other companies, the production of these heating devices, due to favorable conditions on the labor market, was placed in the PRC. The TENRAD radiator manufacturing plant is equipped with its own chemical-technological laboratory, state-of-the-art metal casting complexes "Farm New Brass", robotic manipulators developed by the German company "Kuka" and body painting lines made in Switzerland. All this equipment turned a small factory into a high-tech enterprise, in no way inferior to leading European factories. The production of radiators is carried out under the watchful supervision of German technologists from the parent company TENRAD.

The walls of the TENRAD VM radiator collector on horizontal channels have a thickness of 3.6 mm, and on vertical channels - 1.8 mm. The fins, installed in three rows, create two convection gaps in the upper part of the radiator, through which heated air enters the room. Radiators are covered with high-quality paint and varnish compositions in two layers, and the outer one consists of sprayed epoxy polyester, which meets the requirements of SanPiN 2.1.2.729-99 and standards RD 52.04.186-89, establishing the hygienic safety of materials. In addition, TENRAD VM products comply with GOST 31311-2005, which confirms their adaptation to Russian heating systems.

Prices for bimetallic radiators TENRAD

bimetallic radiators TENARD

The technical characteristics of these devices are as follows:

Name of parameters	Radiator model “TENRAD VM”, numerical parameters
	VM350	VM500
Working pressure, atm.	24	24
Test pressure, atm.	36	36
Heat transfer of one section, W.	120	161
Maximum coolant temperature, ˚С	120	120
Hydrogen index, pH	5÷11	5÷11
Section volume, l	0.15	0.22
Section weight, kg	1.22	1.45
Center distance, mm	350	500
Section height, mm	400	550
Section depth, mm	77	77
Section width, mm	80	80
Inlet diameter, inch	G 1"	G 1"
Radiator color	White	White
Guarantee	50 years	50 years

The average cost of TENRAD VM radiators is from 620 to 720 rubles per section, but can vary up or down, depending on the region of the country. You can purchase batteries already assembled into blocks of 4÷12 sections.

Bimetallic radiators “Radena”

Radena is an Italian company whose office, design bureau and testing laboratories are located in Italy, but the products themselves are manufactured again in China, at the WANGDA Group plant, under the close supervision of Italian specialists.

This brand of radiators has decent quality and good adaptation to Russian heating networks, so it’s difficult to find negative reviews about them. The products have been presented on our market since 2010, and during this time they have gained wide popularity, despite the relatively high price. This is explained by the fact that buyers are attracted by the quality and reliability of these radiators.

The model range is presented in three names - with different center distances: 150, 350 and 500 mm.

The design features of these radiators include the following:

• Self-aligning gaskets installed between sections are made of graphite, so there will be no distortions when assembling and disassembling the battery. Thanks to this, a high degree of sealing is achieved and no leaks form at the connections.
• The threads on the section connections are absolutely straight and never filled with paint.
• The ends of the radiators are perfectly cleaned and ready for installation.
• High-quality original packaging reliably protects products from damage during transportation.

This brand of radiators is one of those products that are characterized by increased thermal conductivity and durability. All manufacturing materials fully comply with European environmental standards.

This table presents the technical characteristics of different-sized Radena models:

Name of parameters	Radena radiator model, numerical parameters
	Bimetall CS 150	Bimetall CS 350	Bimetall CS 500
Working pressure, atm.	25	25	25
Test pressure, atm.	40	40	40
Heat transfer of one section, W.	120	135	185
Maximum coolant temperature,˚ C	110	110	110
Hydrogen index, pH	6.0 ÷ 10.5	6.0 ÷ 10.5	6.0 ÷ 10.5
Section volume, l	0,1/0,13	0.16	0.22
Section weight, kg	0,88/1,19	1.43	1.85
Center distance, mm	150	350	500
Section height, mm	241	403	552
Section depth, mm	120	85	85
Section width, mm	74	80	80
Inlet diameter, inch	G 1"	G 1"	G 1"
Radiator color	white	white	white
Guarantee	15 years	15 years	15 years

All surfaces of these radiators, both internal and external, undergo special anti-corrosion treatment before painting. They are then dipped into a paint bath, then dried thoroughly before undergoing a second step where a top layer of high-strength epoxy coating is sprayed on.

The price of Radena radiators with different center distances may vary not only depending on this parameter, but also on the region where they are purchased. So, “CS150” - 420÷500 rubles; “CS350” - 600÷800 rubles; “CS500” - 645÷ 850 rubles.

Radiators "Rifar"

"Rifar" is a well-known domestic manufacturer specializing in the production of aluminum and bimetallic batteries. Bimetallic heating devices are equipped with an internal monolithic collector made of steel and housed in an aluminum housing. Batteries are produced with bottom and side connections, in three sizes.

Production facilities are located in Russia, in the city of Gai, Orenburg region. The equipment of automated lines, from beginning to end of the entire technological chain, is at an ultra-modern level.

Heating devices of this brand comply with European quality and Russian regulatory documents GOST 31311-2005, TU 4935-004-41807387-10. This version of radiators is largely intended for installation in multi-storey residential and administrative buildings, since they have high strength and performance characteristics suitable for domestic heating systems.

• "Rifar Monolit" is produced in two dimensional versions - with an interaxle distance of 500 and 350 mm. Thanks to the fact that this the lineup“Rifar” is clearly resistant to corrosion processes; housing management companies often recommend it for installation in apartments of multi-storey buildings.

Technical and operational characteristics of Rifar Monolit radiators look like this:

Name of parameters	Radiator model “Rifar Monolit”, numerical parameters
	350	500
Working pressure, atm.	98	98
Test pressure, atm.	148	148
Heat transfer of one section, W.	134	196
Maximum coolant temperature, ˚С	135	135
Hydrogen index, pH	7÷9	7÷9
Section volume, l	0.18	0.21
Section weight, kg	1.5	2
Center distance, mm	350	500
Section height, mm	415	577
Section depth, mm	100	100
Section width, mm	80	80
Inlet diameter, inch	G 1", optional 1/2" and 3/4"	G 1", optional 1/2" and 3/4"
Radiator color	White	White
Guarantee	50 years	50 years

The average price for domestic Rifar Monolit radiators is quite high and is approximately 715 - 850 rubles, but it can also vary and be different for individual regions.

• Another model line of bimetallic batteries from this company is “Rifar Base Venti”. It, in turn, is divided into three options, which have an interaxle distance of 200, 350 and 500 mm.

In terms of color quality and design, the models in this series are more aesthetically pleasing than those of the Rifar Monolit, however, they are significantly inferior to them in their technical and operational characteristics. Therefore, the manufacturer gives a guarantee for these products for only 10 years, and estimates the operating period at 25 years.

Prices for bimetallic radiators Radena

Radena bimetallic radiators

It should be noted here that the manufacturer clearly warns that this battery option is more suitable for autonomous heating systems, since all indicators are designed specifically for it. For example, “Rifar Base Venti” radiators require a clean coolant, which can only be provided in an autonomous system. In addition, the test and operating pressure of these heating devices is several times lower than that of Rifar Monolit.

So, the main technical and operational characteristics of this line are as follows:

Name of parameters	Radiator model “Rifar Base Venti, numerical parameters
	200	350	500
Working pressure, atm.	20	20	20
Test pressure, atm.	30	30	30
Heat transfer of one section, W.	104	136	204
Maximum coolant temperature, ˚С	135	135	135
Hydrogen index, pH	7÷8.5	7÷8.5	7÷8.5
Section volume, l	0.16	0.18	0.2
Section weight, kg	1.02	1.36	1.92
Center distance, mm	200	350	500
Section height, mm	261	415	570
Section depth, mm	100	90	100
Section width, mm	80	80	80
Inlet diameter, inch	G 1"	G 1"	G 1"
Radiator color	White	White	White
Guarantee	10 years	10 years	10 years

The cost of radiators in this line is quite high, ranging from 725 to 900 rubles per section, but can also vary.

Bimetallic radiators "Fondital"

The Fondital company was founded in 1970 in the city of Weston in the Italian province of Brescia, and since its inception it has been engaged in the design and production of heating systems. Over the years of work and constant development, the small enterprise has turned into a large company with several large production facilities. Today Fondital is one of the world leaders in the development and manufacture of devices and components for heating systems. This manufacturer mainly produces aluminum radiators as heat exchange devices, but its product range also includes a bimetallic model, which is quite popular among consumers.

The bimetallic model “Fondital” has a name that speaks for itself - “Alustal”, and is intended for installation in the central heating system of multi-storey buildings.

"Fondital-Alustal" is characterized by the following technical and operational indicators:

Indicator name	Numeric parameter values
Working pressure, atm.	40
Test pressure, atm.	60
Heat transfer of one section, W.	190
Maximum coolant temperature, ˚С	110
Hydrogen index, pH	7-10
Section volume, l	0.14
Section weight, kg	1.23
Center distance, mm	500
Section height, mm	559
Section depth, mm	80
Section width, mm	97
Inlet diameter, inch	G 1"
Radiator color	White
Warranty from installation	20 years

Radiators “Fondital-Alustal” can be block-based, and the batteries offered for sale can include from 4 to 14 sections, to which additional blocks or individual sections can be added. The devices are quite expensive: average cost one section in different regions of the country is 740÷950 rubles.

The manufacturer provides a guarantee for free elimination of all types of defects in production for a period of 20 years from the date of installation. However, such a guarantee only applies if the installation is carried out qualified craftsman in compliance with all installation conditions specified by the manufacturer in the product passport.

Bimetallic radiators from the Global company

The Italian company “Global” was created in 1971 and, we can say that it was at the very origins of the development and production of aluminum radiators. Having come a long way from a small workshop where assembly was done by hand to industrial automated workshops, today the Global company produces not only aluminum versions of heating devices, but also four models of bimetallic radiators of different sizes.

The company has its own testing laboratory, in which all raw materials entering the enterprise are subject to strict quality control. We are constantly developing new models and improving technical and performance characteristics already existing product samples. The Global company received certification for the production of radiators according to the European standards ISO 9002 and ISO 9001-2000, and in 1996, the products of this manufacturer were certified in the GOST system of the Russian Federation. Year after year, the demand for heating appliances from this company is growing, which indicates high consumer confidence in products bearing the “Global” logo.

The main characteristics of bimetallic radiators produced by the company are shown in the table:

Name of parameters	“Global” radiator model, numerical parameters
	"Style" 350/500	"Style Extra" 350/500	"Style Plus" 350/500	"Sfera" 350/500
Working pressure, atm.	35	35	35	35
Test pressure, atm.	52	52	52	52
Heat transfer of one section, W.	125/168	120/171	140/185	119/165
Maximum coolant temperature, ˚С	110	110	110	110
Hydrogen index, pH	6.5 ÷ 8	6.5 ÷ 8	6.5 ÷ 8	6.5 ÷ 8
Section volume, l	0,16/0,18	0,17/0,21	0,17/0,19	0.16÷0.20
Section weight, kg	1,50/1,87	1,42/1,87	1,50/1,94	1,40/1,87
Center distance, mm	500/350	500/350	500/350	500/350
Section height, mm	425/575	418/568	425/575	418/568
Section depth, mm	80	80	95	80
Section width, mm	80	80	80	80
Inlet diameter, inch	G 1"	G 1"	G 1"	G 1"
Radiator color	8 colors	8 colors	8 colors	8 colors
Guarantee	20 years	20 years	20 years	20 years

The color range of GLOBAL bimetallic radiators is wider, but the coloring of released models is often carried out at the request of consumers, and the standard color for batteries remains glossy white.

Bimetallic radiator “GLOBAL STYLE PLUS” 500 - 7 sections in basic color

All radiators undergo a two-stage painting process. The first stage involves immersing the products in a special bath and is called anaphoresis. The second stage involves spraying a dye based on the prepared surfaces. epoxy resins with the addition of coloring pigment.

As you can see from the table above, GLOBAL produces four models of bimetallic radiators, named “Style”, “Style Extra”, “Style Plus” and “Sfera”. Each of the models is available in two versions - with center distances of 350 and 500 mm. The table also shows the difference in some parameters of radiators from this manufacturer - this makes it easier to navigate when choosing batteries for specific conditions.

Please note the warranty period is 20 years. This once again indicates that the manufacturer is completely confident in the quality of its products.

The price of GLOBAL radiators is quite high (the highest of all those discussed in this publication), but they are justified by the reliability, durability and efficiency of the devices. Thus, the average cost of one section of a heating device starts from 800 and reaches 1200 rubles. More information about the price can be found at this link

Appendix: How to independently calculate the number of sections of a bimetallic radiator

The often practiced method of calculation, based on 100 W of thermal energy per square meter of area, is not accurate - each of the rooms has its own characteristics, which also need to be taken into account. Therefore, we will take the liberty of offering the reader a more accurate algorithm, which is implemented in the program of the calculator located below.

Necessary comments on the calculation program

A few brief explanations on the calculations:

• The total amount of heat loss is affected by the presence and number of walls in contact with the street, as well as their location on the cardinal points and in relation to the prevailing winter winds. The program provides appropriate fields for entering this data.
• The climatic features of the region will be taken into account when indicating minimum winter temperatures. In this case, you should indicate not abnormal, but quite normal frosts for your region in the coldest decade of winter.
• The wall insulation parameter may raise questions. Here it is better to approach from the position that a wall is considered fully insulated if its thermal insulation was carried out in full on the basis of completed thermal calculations. There should be no uninsulated walls in residential buildings at all - no heating with this approach will simply not help: the room will still be cold, and the walls will be damp.
• The characteristics of the room, that is, its height and proximity below and above, directly affect the required amount of thermal energy to warm up the volume of the room and replenish heat loss through the ceilings.
• After entering the window parameters, the program will calculate the percentage of glazing (from the area of ​​the room) and enter the appropriate correction factor. A similar approach is used if there are regularly opened doors to the street or an unheated balcony.
• Finally, the overall heat transfer from heating radiators is significantly influenced by the scheme of their connection to the circuit and the features of their location on the wall. All this is taken into account by the calculation algorithm.
• Attention! The program is capable of producing two total values.

— If a calculation is selected for a non-separable radiator model, then the result should be taken into account "A"- this is the required total radiator power for a given room, expressed in kilowatts.

You may be interested in information about what to consider when choosing

Prices for popular bimetallic heating radiators

— If the goal is to calculate the number of sections of a collapsible radiator, then after selecting this path an additional field will appear in which you must enter the nameplate power of one section of the selected model (in watts). The result is taken from the point "B"- this is the required number of sections, rounded up to the nearest whole number.

Recently, it is increasingly possible to find bimetallic radiators, which replace conventional cast iron ones, inherited from Soviet apartments. The new options are not only more convenient, but also more beautiful. They can differ significantly in appearance, as well as technical characteristics. However, it is possible to determine which bimetallic heating radiators are best to choose only after carrying out certain calculations. If you install batteries with a small number of sections or insufficient heating, it will be cold in winter. Therefore, you need to choose bimetallic radiators carefully, especially for residents of the northern regions of the country.

Basically, these types of radiators are purchased for apartments. Depending on the characteristics of the room, its dimensions and location in the house, one or another battery may be effective. The owner of the apartment must take into account all the indicators, otherwise a new and beautiful radiator will not be able to heat the room as efficiently as its cast-iron predecessor.

Bimetallic radiators may differ in appearance, size and type of connection. One of the most popular options is a battery with a bottom connection, as it has its advantages. However, it will not be able to optimally heat the room if the number of sections and radiator power do not meet the required parameters.

Therefore, before purchasing, it is necessary to carefully calculate the sections by area. It should be borne in mind that not only the power of 1 section is taken into account, but also many other indicators. This is the only way to calculate correctly required sizes batteries and buy a really efficient heater.

The number of sections of bimetallic radiators depends on the power of the radiator and the area of ​​the room, ceiling height

The width and depth of the radiator section also plays a role.

Experts point out that a bimetallic radiator has slightly higher heat transfer than a cast iron one. If the temperature of the coolant is 90 degrees, then the heat transfer from the bimetal will be at around 200 units, and from cast iron - 180. Thus, when purchasing a new bimetallic heating battery of the same power as the previous one, you can expect greater heat transfer.

Advantage and design feature bimetallic radiator is that the pipes inside the radiator that come into contact with water are made of steel, and the outer shell is made of aluminum, which improves thermal penetration

In terms of heat transfer, a bimetallic radiator can be compared in efficiency only with a cast iron one

A new radiator will work better in any case. The thing is that over time the pipes become clogged and the efficiency of the radiator decreases.

The simplest option for calculating the battery power is to count the number of sections on the old heating element. If you take new radiator with similar indicators and the same dimensions, then the apartment will be either as warm as before, or even warmer.

How to choose a battery by area?

If a battery is purchased for a new room, where you will have to calculate sections of bimetallic heating radiators by area from scratch, then one of the most important indicators that you should focus on is the size of the room. For central Russia, there are special standards for choosing heating radiators. There should be about 100 watts per 1 square meter. If we are talking about the northern regions, it is worth choosing more powerful options.

Note! But you need to keep in mind that calculating the battery solely by area may not be the best solution. Because errors cannot be excluded. They concern, first of all, those apartments whose sizes do not meet the standards. We are talking about those rooms where the ceiling height is more than 3 meters.

In addition, when choosing a radiator, you need to pay attention to the number of windows in the rooms and the degree of their insulation. If the apartment has a particular location, for example, it is corner, correction factors should be used when calculating the size of bimetallic heating radiators.

Please note that the heat transfer of the room decreases depending on the characteristics of the room

To begin with, it is worth considering that each window in the room requires adding another 100 watts to the total. For the door, another 200 units are added. The correction factor for a corner apartment without wall insulation is 1.3.

In addition, there are special requirements when calculating indicators for different regions. For the Far North, for example, the correction factor is 1.6.

You also need to consider the location and installation method of the radiator. If it contains a decorative screen, and this option has become widespread recently, then this addition will “eat up” about 1/4 of the heat from the battery. Installing a niche under the window sill takes another 7%.

It is also worth considering that power calculations for an apartment and a private house will be different. The first housing option is considered warmer due to the presence common walls with neighbors. For private houses there is an additional coefficient of 1.5. This addition is necessary in order to compensate for heat loss through cold attic and uninsulated walls, which are located on each side of the house.

Heat loss diagram of a private house

It should be noted that bimetallic radiators are rarely installed in private households. This is due to the high cost of equipment. When a home owner wonders which is better, aluminum or bimetallic, experts always recommend the latter option. They come in several types and differ in installation method.

The difference between bimetallic and semi-bimetallic radiators

In both cases, several types of metal are used. Aluminum remains unchanged among them. In bimetallic radiators, only the upper part is aluminum, and the core itself is steel. The coolant is in contact exclusively with steel. This makes the battery powerful and durable, and also protects against corrosion. Bimetallic radiators are made in a shaped casing, which increases their heat transfer performance.

Design of a standard bimetallic radiator

In rare cases, you can find such batteries not with a steel core, but with a copper one. These batteries are mainly used in heating systems with antifreeze. Steel pipes cannot withstand constant exposure to antifreeze.

Bimetallic radiators with copper pipes and cores are suitable not only for water, but also for oil and antifreeze overflow

A distinctive feature of semi-bimetallic radiators is their specific core. In the manufacturing process, two types of metal are used. Here, only the vertical elements are made of steel, and the horizontal pipes are made of aluminum. All this allows you to significantly increase heat transfer. Moreover, aluminum batteries are cheaper.

However, this version of the heating device also has several disadvantages. The main thing that needs to be noted here is the rapid failure of radiator elements. Here we are talking about situations where water with a high alkaline content is used. Similar risks are relevant for apartments with central heating. Therefore, it is better to install aluminum semi-bimetallic radiators in private houses equipped with an autonomous heating system. Here the equipment will last a long time and will not require constant repair or replacement.

It is especially important to choose the right radiators for apartments located in buildings where the central heating system operates under heavy load. The battery must be of high quality, capable of withstanding high water pressure, characterized by sudden changes.

Differences in heat transfer materials of heating radiators

Sectional or monolithic?

The technical characteristics of bimetallic radiators may differ significantly. Therefore, it is important to clarify all the details related to the heating element before purchasing. Some time ago, only sectional batteries could be found on sale, but now the buyer has the opportunity to purchase monolithic products, which have a number of advantages.

The fact is that the presence of separate sections in the battery implies joints. This is a weak point and is susceptible to corrosion. Obviously, the service life of sectional radiators due to the presence of such a “bottleneck” is shorter than that of monolithic analogues.

Monolithic bimetallic radiators collect less dust and corrosion

New technology allows you to create batteries from a solid steel or copper collector. A kind of aluminum case is put on top of it. Such radiators are called monolithic, and they are considered more durable, safe and durable.

The average service life of monolithic products is 50 years, and sectional ones - only 25. The operating pressure of a monolithic radiator can reach up to 100 bar, and for sectional batteries this figure is 3 times lower. The only characteristic that will be the same for each type of radiator is the thermal power. It averages 100-200 watts.

Another distinguishing feature is the cost. Monolithic radiators last much longer, but are also more expensive than sectional ones. One of the disadvantages of one-piece models is also the inability to add or remove sections. Therefore, when purchasing such a bimetallic radiator, you must carefully select it in all respects, including size.

The best manufacturers of bimetallic batteries

Among the leaders in the ranking of bimetallic heating radiators for apartments are not only foreign companies, but also domestic manufacturers. But still, most buyers who are wondering which batteries are best for an apartment opt ​​for European products. Batteries made in Italy are in great demand. The companies Syrah, Raden and Global Style are worth mentioning here. The cost of one section of batteries from these companies is at the level of 1000 rubles. The products are distinguished not only by their durability and high quality, but also by their elegant design and interesting finish. The thermal power of 1 section is about 150 Watt, and the maximum temperature that the Italian battery can withstand is 110 degrees.

Models of Sira bimetallic radiators

Scheme of coolant movement in the Radena radiator

If you purchase these system components without errors, you will be able to increase. Additional “bonuses” will be: impeccable appearance, absence of problems during operation, durability. As part of today's review, we will tell you how to choose the really best bimetallic heating radiators for an apartment in huge assortment modern market.

The main features of bimetallic heating batteries are clear from the name. They are created from two different materials. The interior is made of steel. It performs the functions of a transport system for coolant. This solution increases strength, which is useful for maintaining integrity under typical operating conditions. It is no secret that domestic service organizations are able to begin testing and renovation work on networks without warning users.

The next advantage is increased resistance to mechanical impurities. Again, we must remember the possibility of accidents in worn-out municipal main pipelines. Sand and other abrasive particles can damage the inner surface of soft metal products. They create roughness that promotes strong attachment of scale and other contaminants. Simultaneous damage to oxide films provokes corrosion. Durable steel prevents such negative processes.

It is advantageous to use aluminum on the outside. It has excellent thermal conductivity, so you can count on high efficiency of the heating system. The use of this metal facilitates the design. The low weight of the products simplifies installation, selection of suitable fasteners and creation of reliable supports in walls made of different materials.

Using modern production technologies from aluminum without extra costs create elements of complex shape. This will be useful for increasing the efficiency of heat transfer during the passage of convection currents, as well as for successfully solving design problems.

Main technical characteristics of bimetallic heating radiators

When comparatively evaluating different models, you can check the following parameters:

1. The operating pressure assumes long-term operation.
2. Manufacturers of bimetallic heating radiators indicate test (pressure testing) pressure in the accompanying documentation. It is much higher compared to the previous parameter. The value corresponds to the maximum at which the integrity of the product is maintained.
3. indicate for one section. By assembling a set of several elements, you can obtain the necessary power to heat a certain room.
4. In the same way, the capacity value is given for one section. This parameter is important for a private house and apartment. In such a situation, the volume of coolant is calculated.
5. Weight determines load capacity. You need to know the exact data if you intend to install it on a wooden wall, in a structure with cladding made of.

The best parameters of bimetallic heating radiators for an apartment and significant disadvantages

The components of heating systems are subjected to different influences during use. Pressure and temperature change significantly. Scale accumulation creates particular difficulties. To remove calcium deposits, washing with an acid solution and hydrodynamic shocks are used.

In such conditions, cast iron radiators are still the leaders in terms of durability. The service life of such products exceeds 50 years, so it is not surprising that apartments contain real “rarities” from the middle of the last century. Their main disadvantage is excessive inertia, which makes it difficult to use modern monitoring and control tools. It should also be noted the large internal volume and limited resistance to pressure changes.

Bimetallic analogues retain functionality and appearance for up to 20-25 years or more. The following table shows the average parameters for comparative analysis:

Options	Heating radiator type
	Cast iron
Working pressure, atm	8−10
Crimping pressure, atm	14−16
Maximum coolant temperature, °C	+130
Heat dissipation at reference temperature +70°C	165−180
Working volume of one section, l	1,3−1,5
Weight of one section, kg	6−7

To maintain long-term stability in this case, you really need reliable supports. Therefore, sometimes a floor mounting option is used.

As indicated in the picture, if necessary, the product can be hidden behind a decorative one. Previously, despite their low prevalence, products in this category were expensive, but these days the prices are quite consistent with the affordable level. The disadvantage is the noise that creates temperature deformations at the points of contact between parts made of different metals. But such manifestations are typical only for bimetallic heating radiators of poor quality. The ratings below present products from responsible manufacturers.

For your information! To prevent corrosion, models are produced in which the cores are made of stainless steel and copper. They are more expensive compared to mass series.

Related article:

In this publication we will look at the types of radiators, their advantages and disadvantages, popular models and manufacturers, average prices, advice and recommendations from experts.

Types of bimetallic radiators

With side connection

The top picture uses a classic circuit with a bypass. This jumper ensures that the coolant moves to adjacent floors when the device is turned off by an automatic or manual regulator.

Below is an example with a terminal installed diagonally. The quantity increases, which worsens the overall appearance of the assembled structure. However, it clearly demonstrates the uniform distribution of heat, which is used more efficiently.

With bottom connection

But in this case it is necessary to install pipes inside the floor structure. The corresponding work can be done at the construction stage, during major repairs. It is necessary to use high-quality components and carefully seal the connections. It should be remembered that the elimination of emergency situations will be accompanied by significant costs.

Solid, sectional and other modifications

In some designs, only certain parts of the channels are made of steel. This reduces their strength and resistance to stress. A similar deterioration in consumer parameters occurs when a product is assembled from several sections. Joints reduce overall reliability. But it becomes possible to create a heating device with optimal characteristics for the room.

The one-piece welded construction is designed to last longer in harsh environments. Such products are used in city apartments, where it is difficult (impossible) to control the pressure in the common line.

How to choose the right bimetallic heating radiators, taking into account the connection and features of future operation

Some nuances are noted above. But you should summarize the knowledge gained in order to correctly formulate selection criteria before studying the assortment trading enterprises.

Modern economical ones perform their functions with minimal consumption of energy and fuel resources. Such equipment can be supplemented with bimetallic heating radiators. Mechanical and additional protection from scale will help extend service life. In this option, you can use relatively inexpensive sectional models, since the owner can choose other parameters of the coolant.

To equip a standard apartment with a connection to centralized networks, reliable bimetallic heating radiators made by well-known manufacturers are selected. In this case, it is necessary to study especially carefully suitable models. An overview of reviews published by current owners, taking into account personal experience use.

The neutral appearance does not cause any significant difficulties in checking compliance with the design. To hide pipes, models with bottom connections are used. Do not forget about the additional costs of installing the pipeline inside the concrete and other building structures. When connecting a bimetallic heating radiator sideways, diagonal placement of the coolant inlet and outlet is more effective.

Calculation of the number of sections of bimetallic heating radiators by room area

You can quickly find out the required value using a simple proportion: for every square meter of room area you need 100 W of thermal power. Experienced experts recommend adding 15-20% to this standard for reserve. Thus, for a room of 24 sq. m will need: 24*100*1.2=2880 W. Let's divide the obtained value by the data for one section from the technical passport: 2880/170 = 16.94 (rounded to 17). This means you need to purchase 2 heating devices (9 and 8 components) or choose another combination.

Here we talk about how to calculate the number of sections of bimetallic heating radiators manually. A similar algorithm can be applied taking into account the standard of 41 W per 1 cubic meter. In this version, the calculations are more accurate, since the height of the ceilings is taken into account.

Some heating equipment sellers offer calculators for free on the program's official websites. You can add corrective data to them:

• number of windows;
• the area of ​​the corresponding openings;
• location of rooms relative to cardinal directions;
• wall material;
• floors;
• Availability of computers and other equipment.

For your information! Excessive precision is not necessary for successful project implementation. But you need to buy bimetallic heating radiators with a sufficient power reserve so as not to experience discomfort in severe cold weather or in other difficult situations.

The online magazine site was no exception, and our team created a convenient online calculator for calculating the required number of heating radiator sections especially for our readers.

Article outline

Buying a heating radiator (HR) is not a trivial task. There are many models, they cost differently, and it is not always clear which of those presented on store shelves meets our requirements. Therefore, we will save your time and tell you what to consider when choosing. We present to your attention rating of the 20 best heating radiators for apartments and private houses. Choose any of them - you won't go wrong!

For a private house or apartment?

There are dozens and hundreds of companies specializing in the production of radioactive materials. The competition is crazy. Marketers are coming up with new arguments in favor of their products. This makes the choice of characteristics richer, and making a purchase more difficult for the average buyer. Let's start with the simplest thing.

If you need a device for a private house or apartment with an individual heating system, then choose by power and design. Those. We saw a model we liked in appearance, selected it based on power/size – and that’s it. For an apartment in a multi-storey building, where the coolant is supplied through the pipes of a centralized heating system, you also need to take into account the operating pressure set by the manufacturer. It should not be lower than 10-12 atmospheres. Otherwise, the structure will tear when water is supplied.

Now let’s look at the types of heating radiators, traditionally presenting the data in the form of a “tiny” table.

Device options and their features

Comparison criterion	Varieties	Characteristics
Execution	Sectional	+ it’s convenient to vary the power of the device by changing the number of sections – collapsible design – risk of leaks at joints with poor quality gaskets
	Tubular	+ similar to sectional ones, but without their disadvantages - high price
	Panel	+ minimal risk of leaks, easier to select by size, quick control of the temperature of the RO (due to the smaller volume of coolant inside) – many models are designed for relatively low pressure and are only suitable for use in private homes that have a heating system with a circulation pump
Radiator material	Cast iron	+ durable, inexpensive - heavy, only sectional, with high thermal inertia, which does not allow you to quickly regulate the temperature in the room, the design of available devices is not for everyone - more interesting models are expensive
	Steel	+ variety of types of structures made from this material, fast heating, affordable price – susceptibility to corrosion caused by the use of low-quality alloys. Due to the relative simplicity of production, you may encounter inexpensive products from unscrupulous manufacturers. Accordingly, such companies use the cheapest steel, while the thickness of the radiator walls is minimal. All this causes rapid failure of the RO.
	Aluminum	+ lightweight and durable, easy installation, due to low thermal inertia they allow you to quickly change the room temperature - more expensive than steel ones, due to special requirements for the coolant - suitable only for individual heating systems (in private houses or apartments with a heating boiler)
	Bimetal (steel+aluminum)	+ considered more durable than aluminum and steel - high price
	Copper	+ durable, high heat dissipation – direct connection to steel pipes is unacceptable, high cost, impossibility of painting
Gasket material	Silicone	Withstands high temperatures, effectively compensating for the expansion of metal structures. Ideal for low pressure heating systems, for example in private homes.
	Paronitis	Paronite is pressed rubber mixed with asbestos and other components. Durable, withstands high temperatures. It is most often used in centralized heating systems.
	Fluoroplastic	A product made of heat-resistant polymer that can be installed without lubrication. Withstands exposure to any type of coolant.
	Cardboard	Impregnated with oil paint, special cardboard successfully copes with its function in aluminum and bimetallic RO installed in private homes.
Coolant	Water	We are not talking about plain water, but about specially prepared water. This is exactly what circulates in the centralized heating system. It limits the content of hardness salts (due to which salt deposits form in the pipes - scale) and oxygen (due to which the material corrodes and breaks down). Water requirements in the EU and the Russian Federation are different, so when purchasing a foreign-made heating radiator, it is recommended to take into account the chemical composition of the water in your heating system. If desired, you can find it out at the Housing Office.
	Antifreeze	Antifreezes or “anti-freeze” agents are used for systems with an individual heating circuit. They are needed if there is a risk of the coolant freezing due to the boiler being turned off. As you know, coolant is always in the system. If, for example, in winter the water in the system freezes, then due to expansion it will rupture the pipes, radiator, etc. Antifreeze does not freeze at average sub-zero temperatures. Ethylene glycol, propylene glycol, and alcohol solutions can serve as such coolants.
Installation location	Stationary	Traditional heating radiators installed in most apartments. Mounting to the wall is carried out using special pin or corner brackets
	Floor-standing	The same as stationary devices, only they are installed on special legs.
Operating pressure*	up to 10 atm.	Such values ​​are predominantly typical for panel-type devices.
	up to 20 atm. and higher	For tubular and sectional RO.
Center distance	350, 400, 500, 600, 700 mm	The distance between the axes of horizontal collectors, along which a device is selected for connection to the existing pipe distribution.
Connection method	Lateral one-sided. (subtype of side connection)	The most common and effective solution in terms of using the capabilities of RO. Connection from the side: from above - to the pipe supplying coolant, from below - to the outlet.
	Diagonal (subtype of lateral connection)	Most often used when connecting long devices (from 2 m and above), which allows the coolant to be evenly distributed throughout the entire volume of the structure. Inlet from above, outlet from the lower opposite side.
	Saddle (subtype of side connection)	For sectional ROs when it is impossible to use other methods. Inlet and outlet from the bottom on opposite sides of the device. In this case, the heat exchanger power may drop by 10-20%.
	Lower	For connecting panel RO with hidden pipe routing under the floor. Inlet and outlet from below at a short distance. The efficiency of the radiator is lower than with lateral and diagonal connections.
Thermal power**	values ​​in a wide range	Characterizes the radiator’s ability to transfer a certain amount of heat from the coolant to the room per hour of operation. It depends not only on the size and design of the RO, but also on the temperature of the coolant, as well as the air in the room.
Dimensions	On average: height from 260 to 800 mm, width from 270 to 1800 mm, depth from 50 to 100 mm	Directly affect the thermal power of the device, because The volume of coolant circulating in the device depends on this.

* Before choosing a device, you need to check with the housing office about the maximum pressure in the heating system. Remember that all radiators except aluminum ones are suitable for a centralized heating system!

** We are often asked about how to choose the right heating radiator based on power. To make life easier for you and yourself, we have developed a convenient calculator. Enjoy it for your health!

For those who want to estimate the thermal power on their own, you can use the following method. We determine the required values ​​per unit area of ​​the room: 100 W/m2 – one window and one external wall; 120 W/m2 – one window and two external walls (corner room); 130 W/m2 – two windows and two external walls (corner room). For example, there is a corner room of 20 m2 with two windows. Then the approximate power of the RO will be: 20 × 130 = 2600 W. Let's make an allowance for the fact that the nameplate characteristics of radiators are tied to the ideal operating conditions of the device - 10% is quite enough. In total, we get the required thermal power: 2600 × 1.1 = 2860 W.

All that remains is to decide on the desired model, which you can find among the 20 devices we have selected.

Brief description of RO models from the rating

Brand and country of manufacture	Model and section/panel dimensions (W×H×D)	Material, rated heat flux per section/panel, W	Approximate price per unit/section
1.	STYLE PLUS 500 (80×575×95)	bimetal, 185	from 1041 rub.
2.	ALP-500 (81×570×75 mm)	bimetal, 158	from 630 rub.
3.	RS 500 (80×572×95)	bimetal, 201	from 850 rub.
4.	Monolit 500 (80×577×100)	bimetal, 196	from 850 rub.
5.	PianoForte 500 (80×591×100)	bimetal, 185	from 1500 rub.
6.	ISEO 500 (80×582×80)	aluminum, 180	from 790 rub.
7.	Standard Plus 500 (79×531×72)	aluminum, 198	from 400 rub.
8.	Al 500/80 (79×531×72)	aluminum, 170	from 420 rub.
9.	ALICE ROYAL 95/500 (80×580×95)	aluminum, 190	from 560 rub.
10.	Indigo 500 (80×591×100)	aluminum, 185	from 630 rub.
11.	Logatrend K-Profil 33 300 1200 (1200×300×155)	steel, 670	from 2000 rub.
12.	Harmony 2-500-12 (70×545×80)	steel, 180	from 2250 rub.
13.	type 22 500×1000 LU 22-510 (1000×500×47)	steel, 697	from 2850 rub.
14.	FKO 22 0510 (1000×500×100)	steel, 965	from 2650 rub.
15.	Style (60×580×130)	cast iron, 70	from 1500 rub.
16.	MS-140M-05 (104×588×140)	cast iron, 160	from 500 rub.
17.	Modern 3-745/600 (45×745×100)	cast iron, 102	from 2000 rub.
18.	Aero H (325×900)	steel, 290	from 41,000 rub.
19.	Karotherm KM90 (500×943×22)	steel, 481	from 100,000 rub.
20.	Apollo 765/05 (76×768×250)	cast iron, 145	from 6600 rub.

In addition to the heat exchanger itself, do not forget about the control valves (thermal head) and the Mayevsky tap (if not included), which must be purchased separately. In some cases, the same applies to installation kits. Single-pipe heating systems will require a bypass.

We are offering to you small rating, which contains the best models of heating radiators. To make it easier to compare, we tried to select devices with the same number of sections - most often there will be 6 of them. This edge solution is most popular for standard apartments. All prices are for comparison purposes only.

5 bimetallic radiators

1. Global STYLE PLUS 500, 6 sections – from 4600 rub.

STYLE PLUS 500 model of the famous Italian manufacturer Global. A special feature of STYLE PLUS 500 is an increased safety margin - the product can withstand pressure up to 35 atmospheres - as well as an increased diameter of the vertical channels connecting horizontal collectors. To seal the connections of the sections, special silicone gaskets are used, designed for contact only with treated water - other types of coolants are not allowed. This bimetallic product is designed in such a way that there are no air pockets inside that prevent proper operation device. Warranty – 10 years.

2. RIFAR ALP-500, bimetal, 6 sections – from 3800 rub.

In 2002, the Russian company Rifar quickly burst into the production of heating radiators for private houses and apartments, and since then has achieved considerable success. The main specialization of RIFAR is the development and production of bimetallic and aluminum devices. In the RIFAR ALP-500 bimetallic radiator model, high heat transfer is achieved due to the developed lateral surface of the section. Therefore, the design turned out to be very slender - only 75 mm thick! There are models on sale with a number of sections from 4 to 14, connected through silicone gaskets that provide uncompromising tightness. RO can be made in any of the colors of the RAL 9016 palette. However, it must be taken into account that the coolant for such a device should only be specially prepared water - “anti-freeze” agents used in heating systems of private houses will not be suitable here. 10 year warranty.

Check out the ten-minute video about making the Rifar radiator:

3. SIRA RS 500, bimetal, 6 sections – from 5100 rub.

The Sira brand produces high-quality Italian ROs, including the model we are interested in - RS 500. Reliable, stylish and efficient - this is how this product can be characterized. The company has been around for more than half a century, so only proven solutions are used: a solid steel frame with an outer layer of aluminum, high-quality painting. It differs from other solutions in the absence of sharp corners. The warranty is 20 years. However, you need to take into account that the installation kit is non-standard and is not available for sale everywhere, so it is better to buy it first.

4. Rifar Monolit 500, bimetal, 6 sections – from 5600 rub.

It is no coincidence that the Monolit 500 model from the previously mentioned manufacturer Rifar was included in our rating. This is all due to the fact that the Russian company has really succeeded in developing innovative heating solutions. The product fully lives up to its name - it is monolithic, the sections are conventional, because they are welded together, forming a solid structure. Thus, the possibility of coolant leakage is reduced to zero. This RO can withstand pressure up to 100 atmospheres! Plus, there are practically no restrictions on the coolant used. The manufacturer's warranty is 25 years.

5. Royal Thermo PianoForte 500, bimetal, 6 sections – from 9,000 rub.

Do you want a bimetallic radiator to be not only reliable, but also look sophisticated? Check out the features that look like a piano keyboard. In addition to the fact that the product from the Italians has an original appearance, many technologies were used for its production: additional fins on vertical channels (POWERSHIFT), asymmetrical arrangement of sections (3D HEATING), the ability to use any coolant, including antifreeze (ABSOLUTBIMETALL), seven-stage painting etc. The device is available in three colors. Warranty – 25 years.

Watch the video about the main advantages of Royal Thermo:

5 aluminum radiators

6. Global ISEO 500, aluminum, 6 sections – from 3200 rub.

– compact sectional cast aluminum radiator. It can operate on specially prepared water or at temperatures up to 110×C and pressure up to 6 atm. - for a couple. There are 8 modifications on sale, differing in color, the number of sections can reach 14 pieces. The manufacturer positions it as a model designed for use in the Russian Federation. This is due to the design feature: a developed area and a large volume of coolant circulating in the device. Due to this, it works effectively even with low temperature water. Warranty – 10 years.

7. Thermal Standard Plus 500, aluminum, 6 sections – from 2400 rub.

This and other RO models have been produced in the Russian Federation for almost 20 years at Zlatmash OJSC, which is a defense enterprise. Specializes in aluminum devices; instead of casting technology, pressing from hardened profiles is used. The main advantage is the price and high rated thermal power. The section volume is small, which allows you to quickly adjust the temperature of the product. A working pressure of 24 atmospheres is more than enough for normal functioning in any apartment buildings. The number of sections in the standard delivery varies from 3 to 16. With a declared service life of 25 years, the manufacturer’s warranty is 5 years. Only specially prepared water can be used as a coolant.

8. Oasis Al 500/80, aluminum, 6 sections – from 2500 rub.

The Oasis brand belongs to the Forte Prom GmbH holding, and, despite the English-language name, we are again dealing with Russian products. Aluminum radiator Al 500/80 is produced by injection molding: each section is cast and then the bottom is welded to it. A classic design with a developed side surface, a significant volume of coolant in the system, as well as a 15-year warranty - this is how this device can be characterized. Models are supplied in 4, 6, 8, 10 and 12 sections.

9. Sira ALICE ROYAL 95/500, aluminum, 6 sections – from 3300 rub.

Smooth lines give the ALICE ROYAL 95/500, produced under the Sira brand, a universal appearance. Therefore, the device will look advantageous in any room. The product is made using injection molding technology and is reliable and durable. The operating pressure limit of 16 atmospheres is enough for installation in most high-rise buildings. Warranty – 15 years.

10. Royal Thermo Indigo 500, aluminum, 6 sections – from 3800 rub.

Despite its Italian roots, it is produced in the Russian Federation. Except original design, this device uses interesting technology reverse convection, due to which cold air is cut off from the windows. This became possible due to the design of the upper part of the RO, with the help of which a reverse flow of warm air is formed. Additional fins on vertical channels increase thermal power by 5%. A super-resistant layer of paint ensures the original appearance of the product throughout its entire service life. Warranty – 10 years.

Watch a video about Royal Thermo innovation:

5 steel radiators

11. Buderus Logatrend K-Profil 33 300 1200, steel – from 6000 rub.

Under the famous German brand Buderus produces a wide range of heating equipment, so we simply could not help but add the successful model of the Logatrend K-Profil 33 300 1200 steel radiator to our rating. This is a steel panel unit with three panels and fins, as well as side connection. It features safety edges - a huge plus for families with children. Among the features include the presence of a built-in Danfoss thermostatic valve, which increases the operating efficiency of the device by 5%. In addition, the RO itself can be installed on either side - it does not have a designated rear part. There are many modifications in the series with 1, 2 and 3 panels, with and without convection plates. Warranty – 5 years.

12. KZTO Harmony 2-500-12, steel – from 27,000 rubles.

Another interesting steel model is presented by the Russian enterprise KZTO RADIATOR, operating since 1997. We are talking about the Harmony line of sectional devices, in which the section is made in the form of a pipe with a double wall - the coolant circulates inside. This design ensures efficient heat exchange, looks stylish, and is easy to maintain. By default it is supplied for wall mounting. The service life is 25 years, the warranty is 5 years.

Watch a video about installing the KZTO Harmony radiator:

13. Lideya type 22 500×1000 LU 22-510, steel – from 5700 rub.

The products of Belarusian manufacturers are represented quite widely on the Russian market. Radiators are no exception, competitive due to their affordable prices and good quality. The Lideya model type 22 500×1000 LU 22-510 from the Lidselmash plant is made of cold-rolled steel, the panel thickness is 1.2 mm. Already from the designation it is clear that the design of this device looks like this: 2 panels, 2 convectors. The mount is universal (supplied in the kit), in addition to the pipes for the side connection, there is also a pair for the bottom. This RO can be installed in any heating systems, including gravity ones. Warranty – 5 years.

At the time of writing, there were problems with access to the official website of the plant (http://lidselmash.by/).

14. Kermi FKO 22 0510, steel – from 5300 rub.

Devices from Kermi are in great demand in the CIS. For now German company offers four lines of steel RO. We are interested in the therm-x2 Profil-K or FKO series, model 22 0510. This is a two-panel device with fins to increase heat transfer. A small amount of coolant guarantees a rapid change in the temperature of the product. There are top and side screens that give the product a finished and aesthetic look. Side connection. Warranty – 5 years.

15. Terma Aero H (325×900), steel – from 41,000 rub.

The fairly well-known Polish company Terma produces many heating devices, and Aero H (325×900) is one of the most successful. This design solution, so you should not overestimate its thermal capabilities. The smooth lines of the device will be appropriate in any modern premises, be it residential or office. The low weight allows you to hang the device even on a plasterboard base. The only caveat is that such a RO can only work in a private heating system with low pressure, i.e. not suitable for apartments. Available in several sizes, there are horizontal and vertical modifications, and many colors.

5 cast iron radiators

16. Viadrus Styl, cast iron, 6 sections – from 9,000 rubles.

Positioned by the Czech manufacturer as designer, but in reality almost classic cast-iron radiators also made it into our small rating. Unlike its counterparts, the capacity of each section of such a RO is small, which means that the amount of heat received can be quickly varied. The disadvantage of this approach is low power. Regarding the advantages, one cannot fail to note the possibility of side and bottom connections. The product already has a temperature-controlled valve built in for these purposes. Various possible color solutions. Manufacturer's warranty – 10 years.

17. MZOO MS-140M-05, cast iron, 7 sections – from 3500 rub.

Such radiators can often be seen in old houses. Many still consider them the best solution for heating an apartment. We are talking about a real legend - the cast iron product MS-140M. In this case, the product is produced at the Belarusian enterprise OJSC MZOO. What can you say about such devices? It is enough that they are bought even second-hand and boldly built up in their apartments - low price solves everything. Virtually indestructible correct operation, although the manufacturer gives a modest warranty of only 3 years.

18. EXEMET Modern 3-745/600, cast iron - from 12,300 rubles.

The cast iron tubular design of the radiator looks stylish and interesting. This is a floor product whose name speaks for itself – its laconic lines can decorate almost any room. The device is available in various colors, texturing is possible, as well as additional surface treatment, for example, polishing, patination, etc. The number of sections in one RO can reach 26 pieces.

Main technical characteristics of EXEMET Modern 3-745/600 (x6)

Swiss-German Arbonia design radiators are priced in the premium segment, so you shouldn’t be surprised at such a high cost. What does the famous manufacturer offer us? A stainless steel product that will become an organic addition to the interior of a modern home. Precisely at home, because it has a working pressure limitation of 4 atmospheres. This device can only be considered as an auxiliary RO, because its thermal power is small, and increasing the size (and power) can increase the cost to sky-high heights.

Characteristics	Meaning
Material	cast iron
Thermal power, W	612
Number of sections, pcs.	6
Max working pressure, atm.	10
Center distance, mm	600
Connection	lateral/diagonal
Water volume in one section, l

Main technical characteristics of Arbonia Karotherm KM90

German design radiators GuRaTec Apollo 765/05 are in high demand among antique lovers. The design of the product is copied from a French model of 1890, this reproduction is the most accurate one produced today. A device with an elegant ornament will fit perfectly into the interior of a room designed in a classic style. Three versions with different heights are available to buyers: 475, 765, 970 mm.

Watch a one-minute video about the variety of GuRaTec Apollo radiators:

Editor's Choice

Among bimetallic radiators, two models deserve special attention: and. The first is interesting for its increased safety margin. The second is notable for its unusual design, which makes the radiators an original part of the interior design.

Among aluminum devices, RO stands out for adapting the design to operating conditions in the Russian Federation.

Among the steel ones, a very interesting solution has been implemented - the radiator will not only warm you up, but will also be an excellent addition to the minimalist interior design.

Characteristics	Meaning
Material	steel
Thermal power, W	481
Number of sections, pcs.	1
Max working pressure, atm.	4
Center distance, mm

Updated: 11/18/2018 18:13:24

Expert: Boris Mendel

*Review of the best sites according to the editors. About the selection criteria. This material is subjective in nature, does not constitute advertising and does not serve as a purchase guide. Before purchasing, consultation with a specialist is required.

In almost every modern house or the apartment has a heating system. The radiator plays one of the key roles in it. It is this heating device that is responsible for heat exchange in the rooms. Today, the market offers a wide range of radiators that differ in material, shape, efficiency and price. The most popular products on the domestic market are steel, aluminum and bimetallic products. Each of them has its own strengths and weaknesses. To choose the most suitable steel option, you should listen to the recommendations of experts.

How to choose a steel heating radiator

1. Heating devices made of steel come in two types: panel and tubular.
2. Panel-type radiators are distinguished by their simplicity, efficiency and affordable price. They are suitable for owners of private houses whose heating system does not create high pressure (up to 10 bar) and heats the coolant to a temperature above 70°C. Single-panel models benefit in price, but double-panel analogues are considered more powerful. The advantages of this type include ease of installation, cost-effectiveness, elegant appearance, and a wide selection. Panel radiators also have disadvantages, the main one of which is low durability welds to water hammer. Therefore, such devices are used very rarely in central heating systems.
3. Tubular radiators have a traditional appearance. They are a set of vertical sections that communicate with each other through the upper and lower manifolds. These devices are more expensive, but can withstand pressure up to 15 atmospheres, they are able to work with hot coolant (up to 130°C), and have high heat transfer. It is important for the consumer to be aware of some disadvantages. This is low resistance to corrosion (especially with poor water treatment) and mechanical damage.
4. Having decided on the type of steel radiator, you should correctly calculate the optimal sizes of sections or panels. It is roughly accepted that for heating 1 sq. m requires about 100 W of thermal energy. As for the shape of the radiator, you should adhere to a simple ratio. The length of the device should be 60-70% of the window width.
5. Buying steel radiator, it would be a good idea to pay attention to the equipment. The most practical models will be those equipped with a thermostat. To quickly shut off the battery in case of leakage, it is necessary to install a ball valve. And the Mayevsky tap allows you to remove air from the heating system in a timely manner.

Our review includes 9 of the best steel heating radiators. All of them have received approval from the expert community and Russian consumers.

Which is better: steel, aluminum or bimetallic radiator?

Radiator type	Advantages	Flaws
Steel	Affordable price Stylish design Reliability	Low resistance to water hammer Tendency to rust
Aluminum	Light weight High strength Modern look Economical	High price Requires constant care during operation
Bimetallic	High pressure resistance Quick warm-up Versatility	High price Heavy weight

Rating of the best steel heating radiators

The best steel panel radiators

Panel radiators are quite simple to manufacture, which is why their price is affordable. The steel sheet is stamped and then welded. The result is a single or multi-panel structure. Experts liked several modern models.

A good budget solution when designing a heating system for a private home would be to use steel batteries Kermi FKO 22 500 600. The German manufacturer managed to achieve steel model good energy efficiency. The heat transfer rate is stated at 1158 W. Therefore, one element is capable of heating from 5 to 38 square meters. m of house area. The device is designed for a maximum temperature of 110°C and operating pressure up to 13 bar. The battery capacity is 3.24 liters and has a thickness of 100 mm. The radiator is made of high-quality steel with a thickness of 1.25 mm. Experts gave the model first place in our rating.

Users praise German batteries for their high-quality manufacturing, elegant appearance and ease of installation. The disadvantages of the model include the high price.

Advantages

• German quality;
• good technical indicators;
• energy efficiency;
• stylish design.

Flaws

• high price.

The excellent design of the ELSEN ERK 11 600 radiator attracts the attention of buyers. The English device is made in different countries, so the price may fluctuate. The production operates a multi-stage quality control system. All operations are performed automatically, minimizing the influence of the human factor. To manufacture the heating battery, high-quality steel with a thickness of 1.25 mm is used; the finished product can withstand pressure up to 16 atm. Experts note serious anti-corrosion preparation. It includes operations such as phosphating, priming and painting. Considering its affordability, the model deserves second place in the ranking.

On forums, steel radiators ELSEN are often compared with the standard Kermi. But only original products deserve praise.

Advantages

• affordable price;
• reliable protection from corrosion;
• tight control;
• great design.

Flaws

• The branches do not follow technology.

Finnish steel radiators Purmo Compact 21s 500 are designed for heating systems different types. Both metal and polymer pipelines can be connected to them. The model is designed for a maximum temperature of 110°C, it is tested at a pressure of 13 atmospheres. Experts note a high heat transfer rate, which reaches 3468 W. The largest modification of the device holds 16.5 liters of coolant, which can be water or antifreeze. The radiator has a side connection; it is convenient to mount the device on the wall thanks to adjustable holders.

Advantages

• acceptable price;
• two-panel design;
• beautiful appearance;
• good heat dissipation.

Flaws

• poor protection against corrosion.

A worthy competitor to the leaders of the rating is a steel radiator with a lower Buderus connection Logatrend VK-Profil 22 500. The affordable price of the heating device is successfully combined with high heat output (up to 5478 W). This allows you to heat rooms measuring 54.6 square meters. m. Experts highlight resistance to high coolant temperatures (up to 120°C); in this component it has no equal. Structurally, the battery has two panels, the total thickness is 100 mm. In this case, you will have to fill 18.9 liters of water or antifreeze into one radiator; this is not the most economical option.

Users have mixed opinions regarding corrosion resistance. Some homeowners with good water treatment have no problems, others complain about increased wear and tear.

Advantages

• heat coolant;
• two-panel design;
• decent heat dissipation;
• bottom connection.

Flaws

• large volume;
• short-lived anti-corrosion treatment.

Another steel radiator with a bottom connection made it into our rating. The model from the Netherlands Stelrad Novello 21 500 boasts a heat output of 3459 W. The product is designed for a coolant temperature of 110°C, the testing pressure should not exceed 13 bar. The capacity of one radiator is 16.89 liters. The battery has a two-panel design, and its thickness is 77 mm. The device is equipped with an adjusting valve that simplifies the adjustment of heat output. There are mounting lugs on the back wall of the battery for installation.

In general, the model is made with high quality, it looks stylish, but there are a number of shortcomings. The disadvantages include the high price, large radiator volume, and installation difficulties.

Advantages

• elegant appearance;
• small thickness;
• bottom connection;
• power adjustment.

Flaws

• high price;
• large volume.

The best tubular steel radiators

Tubular steel radiators are a system of several vertical sections. They connect to each other at the top and bottom points of contact. Tubular batteries are characterized by high heat transfer and high cost. Experts have identified several worthy devices.

For many manufacturers, tubular radiators Zehnder Charleston 2180 1792 are the standard. Therefore, on the domestic market you can find many copies that are cheaper, but in many respects worse than the sample. The German manufacturer boasts a glorious history; the first tubular steel radiator was patented in 1930 by the company's founder, Jacob Zehnder. Constant development allows the brand to remain a leader. The device has a domestic hygiene certificate obtained from the Novosibirsk Research Institute. The anti-corrosion coating will not emit harmful compounds, so the radiator is recommended for use in children's institutions.

Installers and users in reviews praise the German battery for its excellent quality and unique style. Only the high price becomes a deterrent to purchase.

Advantages

• German quality;
• deep historical roots;
• classic style;
• safe anti-corrosion coating.

Flaws

• high price.

The Finnish manufacturer offers its customers the opportunity to choose colors. The tubular steel radiator Purmo Delta Laserline 218 is equipped with a mounting kit with 4 mounting points. Heating devices are supplied for sale with both bottom and side connection options. Experts note the possibility of installing a radiator both front and rear. Laser welding affects the ideal smoothness and evenness of the seams. When viewed from the side, the shape of the outer pipes resembles the letter D, which is reflected in the designation of the series. This configuration was not chosen for aesthetic reasons. Heating of the room occurs faster.

Both experts and users note the high quality of Finnish devices. If they are inferior in some way to the leader of the rating, it is only at a higher price.

Advantages

• high-quality welding seam;
• Front and back installation possible;
• individual approach to the client;
• stylish design.

Flaws

• high price.

In a wide power range, the user can choose the Dia Norm Delta Standart 3057 radiator. The devices are supplied to the retail chain in the most different versions, with bottom or side connection. For example, the 8-section version with side trim has a power of 512 W, and for its 30-section counterpart this figure reaches 2820 W. In modern manufacturing, the radiator is not inferior to the leaders in the rating. The battery is made of steel 1.25 mm thick. The elements are welded using laser equipment, and the coating is applied by electrostatic spraying.

The quality of German products is at a high level, this is confirmed by users in reviews. Difficulties arise only with independent connection. The model takes 3rd place in the ranking.

Advantages

• modern technology manufacturing;
• high-quality assembly;
• wide range of modifications;
• nice appearance.

Flaws

• difficulties of self-installation.

Another representative of the glorious German family came to the attention of the expert community. The sections of the Zehnder Charleston 3057 566 model are tubular in shape and connected at the manifold part by welding. With a radiator height of 570 mm, the width of the 10-section structure is 460 mm. The manufacturer took a particularly careful approach to protecting the steel product from corrosion. The five-stage technology includes cleaning, priming, electrostatic powder coating, drying and antistatic treatment.

Advantages

• high-quality manufacturing;
• operational safety;
• reliable anti-corrosion protection;
• affordable price.

Flaws

• more modest technical characteristics.

Attention! This rating is subjective in nature, is not an advertisement and does not serve as a purchase guide. Before purchasing, consultation with a specialist is required.