How to determine the size of heating radiators?

What should be the dimensions of the radiators

The choice of the dimensions of heating devices is not based on aesthetic considerations. Heat transfer plays the main role here. This is especially true if a model is selected for installation under a window. You need to choose a model in such a way as to meet several requirements at once:

• the length of the radiator must cover at least 70-75% of the width of the window opening;
• the distance from the floor should be 80-120 mm;
• from the window sill 60-120 mm.

  

  When choosing the dimensions of the radiator, you need to select them depending on how high the window sill is

Only under such conditions will the heat transfer of the heating device you choose be normal: it will give out the number of watts declared by the manufacturer.

Low radiators

This is another option for the design creation of bimetallic heating devices. Where the standard samples do not fit in height, you can use similar products of a lower height. Here, the center-to-center sections of bimetallic batteries are minimized and amount to 200 mm. Moreover, their characteristics do not differ from standard samples. They are also reliable, durable, able to withstand high pressure levels, and have the same degree of heat transfer. This is because the design of bimetallic batteries remains unchanged despite their small size.

Some manufacturers are cunning. They say that the cost of their product is lower because the product is smaller. In fact, it does not matter what size the radiator is. They have a different construction: there is no horizontal heat exchanger, the vertical core is made of steel. A fake can be identified by the data sheet, which does not contain the usual pressure of 20-40 atm., But 12-15 atm., Which is completely unusual for these devices.

It is not recommended to purchase a similar model for an apartment with central heating. In an autonomous heating scheme, they will fall into place.

Terminology

Often in the descriptions and specifications there is the concept of "center distance". Sometimes the term "inter-nipple" and "inter-center" or connecting dimensions is found. These are different names for the same size. It is defined as the distance between the centers of the inlet holes of a section or a radiator.

In the technical characteristics of radiators, there is often such a thing as the center distance

This parameter is important if the supply pipes are in good condition and there is no need to change them. In this case, in order not to digest the liner, you can choose a model with the same center-to-center distance as the old radiators.

The overall dimensions of the section itself or the radiator are described by the following parameters:

• mounting height;
• depth;
• width.

If the radiator has a sectional structure, then the depth and width refer to the section dimensions. Moreover, the depth of the radiator will be the same, and the width of the battery depends on the required number of sections (you need to add about 1 cm more to the gaskets that fit for tightness of the joints).

The names of radiators often contain numbers: RAP-350, Magica 400, Rococo 790 or RAP-500. The numbers are the center distance indicated in millimeters. This makes it easier for both the buyer and the seller to navigate. The fact is that with the same center distance, the mounting height can differ significantly. Therefore, the specification is set to the most accurate value.

An example of technical characteristics. This is the Revolution Bimetall model

The radiator parameters that may need to be taken into account include the volume of water in the section.For apartments connected to centralized heating, this characteristic does not affect anything, but for individual systems it is important: when it is necessary to calculate the volume of the system (to determine the boiler performance or pump characteristics).

And the most important, perhaps, parameter is thermal power. It should be noted that the highest power is not always necessary. Increasingly, in apartments and houses with good thermal insulation, heating devices of medium power are required, and not huge.

When selecting the thermal power of one section, it must be remembered that the radiator under the window must cover at least 75% of the width of the window opening. Then the room will be warm, there will be no cold zones and the glass will not "sweat". Therefore, it is better to take 10 less powerful sections than 6 pieces with high heat output.

Such a radiator may deliver the required power, but there will be clearly cold and warm zones in the room.

The standard window width is 1100-1200 mm. Accordingly, 75% is 825-900 mm. This is the length or more your battery should be. Running a little ahead, let's say that the average width of one section of an aluminum radiator is 80 mm, which means that you need 10-12 sections.

Calculation of the number of batteries of different sizes

To maintain the thermal balance in the room, you need to carefully consider the number of sections of heating equipment you need. This requires that the heat emanating from your cast-iron, aluminum or other appliances correspond to its losses through walls and windows in the cold season.

So, for a high-quality heating system for a standard room (with a ceiling height of no more than 3 meters), 1 kW of thermal energy is enough for every 10 m2. Having calculated the required power, you need to divide it by the power of one section (this value is usually indicated in the equipment passport). The result will be the number of radiators you need.

Attention! With a ceiling height exceeding 3 meters, the number of radiators should be increased: multiply the number obtained in the above way by the ratio of the height of your room to the standard value.

Warmth and comfort for home

Standard height

When talking about the standard height, they mean a center distance of 500 mm. These are the connecting dimensions that the well-known cast-iron "accordion" of Soviet times had. And since they have a long service life, these batteries are still in heating networks. Only now they are being replaced with new ones. Moreover, they often do not want to redo the system, so they are looking for heating devices of the same size. What's good: they are in almost every group.

Cast iron

Today, not only the "accordion" is made of cast iron, although there is one and it is a success. There are also retro-style radiators with a center distance of 500 mm, made in a modern style:

• "Accordion" is called MS-140, MS-110, MS-90 and MS-85. These modifications differ in depth: 140, 110, 90 and 85 mm, respectively. The width is also different. Moreover, it differs from different manufacturers of the same model. So the MS-140 of the Minsk plant has a width of 108 mm, and of the Bryansk and Novosibirsk ones - 93 mm.
• Cast iron radiators in a retro style with a center distance of 500 mm, the appearance and dimensions will be completely different. Let's say, the Modern 500 model. Sections with legs, dimensions 645 * 100 * 45 mm, without legs 572 * 100 * 45 mm, heat power 93 W. And the other DERBY M 500 has dimensions of 660 * 174 * 63 mm and a heat transfer of 118 W (where the dimensions are designated as height * depth * width).
• Cast iron batteries of the new model also have a decent range of parameters. Turkish Demrad Ridem 3/500 - 572 * 98.2 * 60 mm, Demrad Ridem 4/500 - 572 * 134 * 60 mm. Czech Viadrus Style have the following dimensions: height 580 mm, width - 60 mm, depth is not indicated due to its non-linear shape (narrower at the top, wider at the bottom).

  

  Cast iron batteries can have such dimensions today.

Aluminum

The dimensions of aluminum radiators are more standardized. Here you can even talk about average values. With a center-to-center distance of 500 mm, the average section height is 570-585 mm. Almost standard width is 80 mm. There are options in depth. There are practically flat ones: Russian-made "Thermal" radiators have a depth of only 52 mm. These are the flattest aluminum batteries. For all others, it is 80-100 mm.

Bimetallic

Here the situation is even more standard. There were no flat radiators in this category. On average, the dimensions are as follows: width 80-87 mm, depth 80-95 mm, height 565-575 mm.

The lowest radiator at Global Gl-200/80 / D has a height of 200 mm

Steel

Steel panel radiators are rarely produced with a center distance of 500 mm. But still, there are some. For example, the Kermi campaign made the following connection dimensions specially for the replacement: they are in the Plan-K and Profil-K line. There are also standard-sized radiators in the Russian one: the RSV-1 model.

Tubular radiators delight with an abundance of models and sizes. It is quite easy to find the required dimensions here. The Russian] KZTO [/ anchor] has it, the Europeans have it. In this category, they operate more with a total height - mounting, since many prefer a bottom connection.

The device of bimetallic radiators

The technical characteristics of bimetallic heating radiators directly depend on the design and device.

The presence of an aluminum radiator is a guarantee of excellent heat dissipation from steel pipes. Since aluminum does not come into direct contact with water, it does not undergo oxidation and corrosion. Due to the presence of a steel core, through which, in fact, the flow of hot water takes place, a high level of reliability of the radiators is guaranteed.

Bimetallic radiators do not need additional touch-up, as they are covered with 2 layers of innovative paint that is resistant to high temperatures.

Radiator device

Bimetallic heating radiators are a strong steel pipe, on which, in fact, a radiator made of high quality aluminum is put on. Within the framework of the design, the presence of a thermostatic valve, as well as a thermostatic regulator, is mandatory (they are not included in the package, but taking into account the technical characteristics of bimetallic heating radiators, they must be ordered separately). Plus we add here a spring valve, a bottom connection, a plug, an adapter and an air bleed valve.

Production technology

If we turn to the issue of production technology for bimetallic radiators, then there are 2 types in total.

1. Batteries created on the basis of a steel frame completely exclude the possibility of aluminum contact with the coolant, and this is an additional argument in favor of the absence of corrosion. A similar composition of bimetallic radiators assumes an emphasis on weight and size when choosing.
2. Channels, additionally reinforced with steel tubes, it is very important for them to ensure the reliability of fixing the steel inlays.

If your goal is to buy a bimetallic radiator, which is created on the basis of a full-fledged steel frame, then you should definitely focus on two key characteristics - weight and price.

Extraneous sounds when the product is heated can be explained by the different coefficient of expansion of metals. By the way, many buyers traditionally consider the described aspect to be a clear disadvantage, but still, against the background of the advantages, it is quite insignificant.

Advantages of bimetallic radiators

Today, many buyers know exactly what bimetallic radiators mean in terms of advantages.

1. Of course, these are the highest performance indicators and the ability to perfectly heat the room even in cold weather, since there is an increased power of the bimetallic radiator.
2. The durability of the batteries is beyond question.That is why it is also the best choice for high-rise installations.
3. The connection of bimetallic heating radiators is allowed in any systems, regardless of the existing pressure level limitation. Plus, such batteries are an excellent option even for use in Russian standard systems and old standard houses.
4. The heat transfer of bimetallic radiators is very high, 170-190 W (with a center-to-center distance of bimetallic radiators of 500 mm).
5. Low weight of the bimetallic radiator section.
6. It is noteworthy that for radiators of this type, the quality of the water used is not at all important, and this was the main focus of the development. However, in the steel part, as well as in the “brothers”, corrosion can form if the water contains too much oxygen.
7. Finally, one cannot fail to recall the attractive aesthetic appearance. The batteries will fit into any interior, especially since today you can easily find even bimetallic colored heating radiators that will help you follow the latest fashion trends.
8. And the last item on the list, but not at all by its importance - compactness and ergonomics! The dimensions of bimetallic radiators make it possible not to clutter up any, even small, room. Buyers have to save, literally every centimeter, and when choosing batteries, the question does not lose its relevance. Finally, even very narrow bimetallic radiators can be selected.

Tall and narrow

High radiators, even in the usual design, look unusual. And if you paint it in a non-standard color, give it an unusual shape, combine it with a mirror or a shelf, it turns out, in general, more like a designer thing than a banal heating device.

Let us immediately disappoint cast iron lovers: the highest cast-iron radiator is in the area of ​​a meter. We have not met above. The same can be said about bimetallic ones - they cannot be higher than a meter. And in general, all that is in the bimetal is 760-860 mm or so.

One of the most attractive models is the Arbonia Entreetherm vertical tubular radiator

Steel panel batteries as standard come in heights up to 900 mm. But there are also special models that can reach two meters and more. For example, Kermi has two models Verteo Plan and Verteo Profil - the maximum they can be up to 2.2 m. Purmo also has giants: Kos V, Faros V, Tinos V, Narbonne V and VT, Paros V. They differ in the type of front panel (smooth or profiled) and depth. But they all have only a bottom connection.

Steel tubular radiators are available up to 3000 mm high. Moreover, if necessary, some manufacturers can do higher. There are high models from any manufacturer: everyone who is present on the market offers such non-standard options "on order". Here we list only the most interesting in terms of design: Entreetherm, Planterm from Arbonia, Dekor series from Kermi, Harmony from Russian KZTO, Charleston from Zender.

In other types, there are no tall radiators. The choice, and so, I must say, is considerable. I would not be at a loss.

A few words about quality and brand

What is a bimetal radiator

If the product has hit the market, then there must be a bimetallic certificate for each radiator. However, how to explain price fluctuations, the worse are the models that are cheaper?

1. Firstly, slightly less materials were spent on their manufacture.
2. Perhaps the developers have provided for a simplified design.
3. There are cases when savings were made on finishing.

It can be said with unequivocal certainty that the cheapest bimetallic radiators (usually of domestic and Chinese production) are not bad at all. They, of course, can be used, it is just worth considering that the working pressure will be less, plus, less attractive appearance.

That is, if we compare bimetallic heating radiators in different price categories, then the difference will most likely be noticeable only to people who are well versed in the matter, since, in fact, a comparison of bimetallic heating radiators is possible only under operating conditions.

The only thing that can be recommended is the control over the seller's reputation. Also, you always have the right to require a certificate of conformity for bimetallic radiators.

Bimetallic heating radiators: characteristics

Bimetallic radiators are radiators that combine 2 types of metal at once, namely steel with aluminum. That is, the answer to the question of what metal radiators are made of has already been received.

The body is made of aluminum as standard, which provides such characteristics of bimetallic heating radiators as fast heat transfer. At this time, the steel rod is famous for its anti-corrosion properties, being located next to the coolant, it does not undergo oxidation.

Bimetallic radiators were specially designed for use in centralized heating systems, that is, for use in rather difficult conditions with a low-quality carrier, with high pressure, under mechanical and hydraulic shocks.

As for the cost of such radiators, then, of course, it is slightly higher than standard aluminum or panel radiators, but the point is that connecting bimetallic heating radiators will pay off 100%, plus a long service life (up to 20 years) cannot but be a compelling argument for purchases.

The described radiators are produced in type-setting sections, which are packaged in 10 pieces. The dimensions of the sections of bimetallic radiators and their number can be adjusted to control the heating level of the room. For reference: 1 section may well heat about 2 m², combining the functions of a full-fledged convector and a radiator.

Bimetallic radiators are coated within the framework of the production with the most durable powder paint, the latter is capable of withstanding any mechanical influences with particular resistance.

The connection of bimetallic radiators is quite reasonable, since they are durable and reliable heaters that have passed a lot of thermal, strength and performance tests.

The residents of the CIS countries were especially glad to know what a bimetallic radiator is, since such equipment shows itself perfectly even in the most unfavorable conditions of our heating systems.

A striking example of this is the ability of radiators to withstand a pressure of 40 atmospheres, while, on average, the accepted pressure in heating systems is about 16 atmospheres. The stock is more than extensive.

Low radiators

All heaters, the center distance of which is less than 400 mm, can be considered low. And here they offer many different models.

Steel panel radiators are very low

In the cast iron group, the minimum center distance for the BOLTON 220 model with an installation height of 330 m is slightly higher than the Hellas 270 from Viadrus: it has an installation height of 340 mm. All others are taller - with a center-to-center distance of 300-350 mm or so.

Among the aluminum radiators, the smallest have] Sira [/ anchor], their mounting height is 245 mm, and the center-to-center height is 200 mm. These are the Alux and Rovall models with a depth of 80 mm and 100 mm. The models of another well-known] Global [/ anchor] (Global) - model Gl-200/80 / D and the Russian "Rifar" - "Base 200" and "Forza 200" have similar dimensions.

All manufacturers have slightly larger aluminum batteries (with a center-to-center 300 mm and more). There is a wide choice.

The same Rifar and Sira have bimetallic low radiators: the heights are 245 mm and 264 mm, respectively. But most of all models have 350 mm connecting dimensions. Any manufacturer has them. Such a distance, in fact, can also be attributed to the standard - everyone has it.

Even more choice in the group of steel radiators. The smallest panel panels are produced by Purmo - Purmo Planora and Ramo Compact - their center distance is 150 mm, and their height is 200 mm.

For all other manufacturers, the height starts from 300 mm. Moreover, the length can be up to 3 meters (the step of its change is 100 mm).

Floor radiators are the lowest possible

Tubular radiators are also very small: from 150 mm Delta Laserline sizes (manufactured by Purmo).In Arbonia, the height of all models of tubular radiators starts from 180 mm, in Zehnder from 190 mm (model Charleston), in the Russian KZTO from 300 mm.

There are low copper and copper-aluminum radiators. They are mainly produced in small dimensions - they have great power, and the price is also rather big. The lowest models are as follows: Ukrainian "Thermia" - height from 200 m, Polish Regulus-sistem - all models with height from 215 mm; Russian "IsoTerm" - from 215 mm; Chinese Mars (sectional type) with a height of 385 mm.

And the lowest can be considered the convectors built into the floor. They do not protrude above the floor level at all, but are placed for heating solid glazing, or built into the window sills of panoramic windows. There are they of different power and purpose, they can be used as additional or main heating.

Batteries in standard sizes

The dimensions of bimetallic batteries do not differ from other types of heaters. Their dimensions are determined by the distance between the axes of the low- and high-positioned horizontal heat exchangers. These parameters do not yet indicate the size of the structure as a whole. To determine the true height of the product, you need to add 80 mm to the center intermediate indicator (it is indicated on the product). The resulting number will help you find a suitable place in the room where you can put the battery. There are three standard values ​​for the center line: 200; 300; 500 mm. This is not yet the only value for determining the size of the device. 80 mm is taken as the standard for the length of a standard segment of the structure, the depth can vary in the range of 75-100 mm, and the height is from 550 mm to 580 mm. In addition to standard samples, there are also design solutions for bimetallic heating devices.

Flat radiators

In some cases, it is not the height, but the depth of the radiators that plays a role: flat batteries are needed. Here the choice is not very large.

Shallow depth aluminum radiators are produced by Zlatoust Thermal. Their RAP 500 and RAP 300 models have a depth of 52 mm, while the thermal power is decent - 161 W and 105 W.

Panel radiators can be considered flat: depending on the number of heating panels, they have a depth of 60 mm. Also the thickness is small.

A small depth happens in tubular steel radiators: two-pipe radiators are made with a thickness of 50 mm, three-pipe ones from 100 mm to 110 mm, all the others are already more solid - from 135 mm and more.

Steel pipe radiator can have from two to six columns of pipes

Neither bimetal, nor, especially cast iron, is flat. But there is a very good and perfect flat type of heating - a warm plinth. With such a system, heating devices are located along the floor along the perimeter. At the same time, their dimensions are about 30 mm in depth and 100-120 mm in height.

Calculation of heating radiators

In conclusion, it is necessary to focus on the question of how to calculate the number of heating radiators per room or other room.

The required number of sections can be determined in several ways:

1. Based on the area of ​​the room. This method is suitable for rooms with low ceilings (within 3 m). To do this, it is necessary to multiply the number of square meters of the room area by the required amount of heat per meter, according to SNiP it is 100 watts. For example, 20x100 = 2000 watts will be required for 20 square meters. Then the required amount of heat is divided by the heat transfer of one section of the radiator, indicated in the technical passport. The resulting number of sections of the heater is rounded up to an integer.
2. Starting from the volume of the room. This method is relevant when calculating radiators for rooms with high ceilings or stairwells and, in addition, more precisely the above method. According to regulatory documents for heating 1 cu. m. indoor air requires 41 W of heating power. Accordingly, by multiplying the volume of the room by 41, the required amount of heat is obtained, which is then also divided by the heat transfer power of one section and the resulting value is rounded to an integer. For buildings equipped with modern double-glazed windows, less heating power is required - 34 W / m3. It should be borne in mind that often manufacturers are cunning and indicate heat transfer indicators at the maximum temperature of the coolant, therefore, when calculating, it is necessary to build on the minimum parameters of the heater.
3. A more accurate calculation is possible only for specialists, since this takes into account many parameters, coefficients and tabular values ​​specified in the regulatory documentation. These include: the amount of heat for the room, depending on its location and value, the area of ​​the room, the coefficients of glazing and thermal insulation of the enclosing structures, the coefficients taking into account the number of external walls, the height of the ceilings, the type of rooms above and below, the outdoor temperature in the coldest week and five days and much more. Therefore, in order to obtain such an accurate heat engineering calculation, it is necessary to contact an organization specializing in these services.

As can be seen from the materials of this article, the choice of radiators of the required size and thermal power is an important measure to ensure a comfortable stay in the house. If you do not pay due attention to this procedure, then later you can forget about the comfort in the room.

Overview of technical specifications

Now let's take a closer look at bimetallic radiators characteristics and properties. This must be considered first of all before buying this or that type. What is special about these products and why are they called one of the best? Let's find out.

Heat dissipation

Perhaps, it is for this that radiators are bought to heat the room. Therefore, first of all, you need to pay special attention to these characteristics. The heat that is given off by a radiator, the coolant of which has a temperature of 70 degrees, is measured in watts. Bimetallic batteries have excellent heat dissipation performance, as the average is in the range of 170-190 watts.

The process of heat transfer itself is quite simple: it consists in heating the air, and due to the special design of the battery, a convention takes place.

Operating pressure

It depends on the parameters and the manufacturer. Nevertheless, on average, the battery can withstand a pressure of 16-35 atmospheres. This is quite enough, because the centralized system is capable of producing no more than 14 atmospheres, and the autonomous system - about 10. And in order to prevent the radiator from bursting during pressure surges, the parameter is made with a margin.

Distance between axles

The sizes of bimetallic heating radiators can be very different. But as for the center distance, here are the standard values:

What is this distance? This is the gap from the top to the bottom manifold. We can say that this is the height of the bimetallic radiator. Thanks to these very different sizes, you can choose a product for any interior and for different needs.

Maximum coolant temperature

It is clear that the temperature of the coolant inside rarely reaches 100 degrees Celsius. However, almost all products are able to withstand an indicator of 90 degrees. This is just fine. And if you saw that the manufacturer claims up to 100 degrees, you can understand that he is a little disingenuous, since such radiators cannot withstand more than 90 degrees.

Service life and reliability

If we take into account the technical characteristics, features and the manufacturer, then you can be sure that it is guaranteed that you can operate the battery for 20 years without any maintenance. But, this is far from the limit. With proper operation, they can last a very long time.

Ease of installation

In general, bimetallic heating radiators can be installed independently. Nevertheless, simplicity and convenience depends on the size, weight and availability of instructions. The good news is that the battery sections are identical, which means that they can be installed both on the left of the heating pipe and on the right. It is only necessary to connect the pipe to the radiator from the right side, and from the opposite side to mount it with plugs and a Mayevsky crane for control.

Note! The Mayevsky crane is a very useful thing.Thanks to him, the battery, if unnecessary, can be turned off altogether, or in the event of airing, it can remove air from the system.

In addition, there are products on sale with nozzles at the bottom. All components, pipes and brackets must be included with the radiator.

Description of the characteristics of the center distance of the radiator

The center-to-center or inter-nipple distance of the radiator is a value that denotes the gap between the central parts of the outlet and inlet collectors of the entire battery or each of its sections. It is indicated in the specification for the radiator, where its main characteristics are presented, and is denoted by numbers and the model name of the device. This indicator is of particular importance in private houses, where water is naturally contained in the heating system. If the gap is large, liquid will not stagnate in such a radiator, due to which the efficiency will begin to increase.

Values ​​with a value of 300, 350 and 500 mm are considered standard, many modern manufacturers produce batteries of this type. There are models with other intervals, for example, 200, 400 or 600 mm, in designer batteries this value reaches 2000 mm. For radiators with the same center distance, the mounting height can be different and depends on the design features of the battery, the material from which it is made, as well as the design and brand. These values ​​should not be confused, which is especially important when installing radiators in openings under windows or niches.

In houses of the Soviet or post-Soviet type, devices were more often installed with an interval of 500 mm, for this reason, options with such an indicator are still more popular in Russia.

Temperature and pressure requirements

When creating a heating system, parameters such as the temperature of the working environment and the pressure in the system are important.

The presence of a stainless steel insert has no effect on the appearance and dimensions of the heater. But their use allows you to withstand significant pressure (up to forty atm.). It should be noted that tests of the heating network are carried out at a pressure one and a half to two times higher than the standard parameters.

Heating temperature graph

By the way, the maximum allowable temperature of the thermal environment can reach 100-110 degrees Celsius. This value is close to the parameters of the heat carrier entering the building from the centralized network. But he loses part of the energy when he passes the point where the working environment circulating in the house network is heated.

Important! Before purchasing new heating devices, it is advisable to contact the office of the management company and request data on the operating and test parameters of pressure and temperature. This will help you make the right choice.

Sectional bimetallic heating radiators

Section capacity versus center distance

The center distance of a bimetallic radiator determines important parameter - section capacity, on which the thermal power of the device ultimately depends:

• In models with an inter-nipple distance of 500 mm, the section capacity is 0.2-0.3 liters.
• With a distance between the inlet and outlet of 350 mm, the section capacity is 0.17 - 0.2 liters.
• In bimetallic radiators with a center distance of 200 mm, the volume of the coolant varies from 0.1 to 0.16 liters.

Dimensions of radiators

By the type of material, radiators can be bimetallic, steel, aluminum or cast iron. The dimensions, general parameters and weight of the batteries directly depend on this, which must be taken into account when choosing the appropriate option.

Bimetallic

In appearance, bimetal batteries resemble aluminum devices, while their outlet and inlet manifolds, as well as vertical heat-conducting channels are made of stainless steel with an aluminum case placed on the top.Devices of this type are not subject to rust, they are resistant to water hammer, therefore they are often installed in apartments that are connected to a central heating system. The list of advantages includes a high level of strength, reliability, resistance to environmental influences, compatibility with all heating systems.

Section dimensions:

• Center distance: 200 mm, 350 mm, 500 mm.
• Height: 415 mm, 570 mm.
• Width: 80 mm.
• Depth: 75mm, 85mm, 90mm, 100mm.

Radiators have a high heat transfer, do not require a large number of heat carriers, the period of their operation reaches 20-25 years. They also have their drawbacks, for example, a creak arising from the difference in the expansion coefficients of steel and aluminum. Vertical channels can become clogged, so their cleanliness must be monitored separately, in addition, bimetallic ones are more expensive than analogues made from other materials.

Aluminum

Dimensions of aluminum radiators

Radiators of this type can be extrusion or cast, the second option is more popular, since such devices are highly durable and do not corrode. Aluminum batteries provide optimal heat dissipation, are easy to install and transport due to their low weight, and they are able to heat up as quickly as possible.

The models are available in various designs and represent the optimal combination of cost and heat efficiency. Of the minuses, the potential for damage due to water hammer is noted. There are devices on the market with an axis gap of 200 to 800 mm, the most popular are 350 and 500 mm.

It is possible to operate aluminum units only in the absence of an oxidized medium in the heat carrier, therefore they are not recommended to be installed in buildings with a central heating system.

Steel

Devices made of steel, including those with side connections, are tubular or panel. Panel-type radiators are a system of 1, 2 or 3 panels with fins made of special U-shaped plates or without them. Each panel includes a pair of channel steel sheets that are welded together. The advantages of such radiators include increased heat dissipation, convenient installation, damage resistance, safety, acceptable cost and spectacular design.

Tubular radiators consist of inlet and outlet headers, which are connected to each other using several rows of tubes with a thickness of at least 1.0-1.5 mm. All parts are connected by welding, which does not leave seams. The list of advantages of tubular radiators include accelerated heating, resistance to aggressive environments and mechanical loads, water hammer, the ability to choose the shape and color of the battery, safety and environmental friendliness, no problems during operation.

The distance between the centers of the radiator fittings is 300 or 500 mm. The depth of the product section is from 40 to 115 mm. The thickness of the steel does not exceed 1.5 mm.

Panel gauges may not withstand water hammer during system checks and are prone to corrosion. Among the disadvantages of tubular radiators, a reduced heat transfer, the formation of leaks in the welding areas and a high cost are noted.

Cast iron

Cast iron batteries are still popular due to their good high temperature resistance, no corrosion problems and durability. In devices of this type, there are widened channels that ensure ideal circulation of the heat carrier even during clogging. Cast iron radiators have an accumulating effect and remain warm for a long time after the coolant supply is stopped.

Such devices also have their drawbacks, for example, large sizes compared to similar options from other metals, as well as significant weight, due to which cast-iron radiators are equipped with supports.Due to the low heat output of cast iron, batteries of this type slowly warm up the room. Many models have sections of complex shape, which is why taking care of the device takes longer.

The height of the radiator section is from 400 to 900 mm, the depth is from 100 to 200 mm. The distance between the centers of the nipple holes is within 300-800 mm.

Aluminum radiator width

The width (length) of an aluminum radiator depends primarily on the number of sections. And the width of the aluminum radiator section is not constant. It depends on the model and manufacturer. And varies from 8 to 10.5 cm.

The width of the battery section determines how efficiently it will heat. The lower the temperature of the water or coolant in the system, the worse it heats up the aluminum feathers. Accordingly, the section should be narrower.

When connecting the sections to each other, nipple nuts are used. Sometimes gaskets are installed at the joints or they are coated with sealant. Their thickness has practically no effect on the overall dimensions of the radiator.

That is, to find out the dimensions of an aluminum heating radiator for 10 sections, it is enough to know its center-to-center distance and section width. Add 7-15 cm to the centerline - you will find out its real height. Multiply the width of the section - find out its length.