One of the important links in any heating system a radiator is considered, which is mounted in each room to be heated. It is thanks to this device that the comfort and coziness of living is created, for residents of an apartment or a private house. Therefore, the choice of a high-quality battery should be based on heat dissipation, visual appeal and low cost of the radiator. But for a better understanding of the issue of buying such a device, you need to consider the main characteristics of the different models presented in the modern construction market.
On the modern market for heating technologies, there is an extensive range of radiators made of cast iron, aluminum, steel, copper and a combination of several metals. for this consumer, it remains only to figure out which heating device is suitable for a particular way of heating a home... In this case, the choice should be based on the technical characteristics of the battery: permissible temperature indicators, pressure level, heat transfer coefficient, inertness, and acid-base balance used coolant - indicators that correspond to the parameters of the heating system in a particular house or apartment.
The appearance of the heating battery is also important, along with the service life and cost of the device. In this case, it is necessary take into account in which heating scheme the radiator will be used- an open system in an apartment building or a closed wiring in a private house. If these criteria are neglected, then the heating efficiency will at best decrease sharply, and in the worst case, the battery will simply fail.
The main problem of the consumer is that when choosing a good radiator, first of all, the aesthetic component and the price of the battery are taken into account, and not the technical and operational parameters. heating equipment... Not any model of a battery, even of a well-known manufacturer, is capable of withstanding the working conditions in a heating network, which operates in multi-storey buildings.
The work of centralized heating, which we inherited from the times the former USSR, characterized by constant pressure drops, temperature jumps, as well as low-quality coolant circulating through the central risers. Calculated temperature parameters for one-pipe domestic heating systems open type in high-rise apartments, they can reach 120 ° C at pressures over 10 atmospheres. At the same time, frequent heat strokes are observed, especially when the heating main is first started after a downtime in the summer season.
Therefore, when choosing a good radiator, all of the above indicators should be taken into account. First of all, you need to take into account the maximum permissible temperature and pressure parameters. hot water in the heating system, which are usually indicated in the documentation for the purchased heating device.
Another important parameter any heating radiator is the heat transfer coefficient. This criterion directly affects the efficiency of heating the air in a heated room and depends on the materials used in the manufacture of the battery. It's no secret that an aluminum battery works much more efficiently than a cast iron counterpart., in turn, a copper product is rightfully considered the leader in terms of efficiency. But focusing on just one characteristic of a battery is completely wrong. It is necessary to rely on both the positive and negative qualities of the heating device. Only in such a situation can you choose the right heating radiator.
Despite a wide range of different heating devices, and related elements in the modern construction market today there are several of the most popular types of batteries:
Depending on the shape and material different types radiators have both their own advantages and disadvantages on which their choice should be based. But first you need to familiarize yourself with each individual heating battery model.
The massive batteries of cast iron painted with white paint, familiar to every inhabitant of our country, are gradually disappearing into history. They were replaced new improved radiators made of the same metal, but only with a more aesthetically pleasing appearance and the same, proven over the years, reliability. At the same time, they have certain advantages over competing products:
Plus, the cast-iron battery is not very susceptible to corrosion. This is due to the fact that as a result of the initial interaction with the coolant an insoluble black coating forms on the inner surfaces of the radiator, which acts as a protective screen that prevents contact of the air present in the water with the metal.
The destruction of a cast-iron radiator, subject to operating conditions, will occur very slowly. Outside, a modern battery is covered with a special heat-resistant paint and varnish coating, which reliably protects it from destruction. In radiators made of cast iron, gases are practically not formed and therefore no bubbling occurs, so there is no need to regularly bleed air.
If we consider the disadvantages of cast-iron radiators, then I would like to draw attention to the large weight, due to which, when carrying out installation works you need two people. Besides cast iron - metal with high level inertia... The cast-iron battery heats up very slowly, but it also cools down slowly, which makes it impossible to quickly adjust the air temperature in the heated room.
The steel battery is shaped like a ribbed plate, inside which a hermetically sealed circuit is located, through which the coolant will circulate. Due to the large area of such a radiator and its ribbed shape good heat transfer and convection of warm air masses is ensured... The thermal conductivity of steel is comparable to that of cast iron, but the walls of the steel battery are much thinner and therefore heat up faster. The working pressure of a steel heater can reach 10 atmospheres, plus, in addition, it has the following advantages:
Of the shortcomings, I would like to highlight n the need to correctly calculate the number of radiator fins, since the closed design of the circuit does not allow to build them up to change the heat engineering characteristics. In addition, the operation of steel radiators in constant voltage mode, that is, at maximum pressure, can lead to a loss of tightness of steel panels.
The aluminum battery has an attractive appearance and compact size. On store shelves you can find additional sets of sections, thanks to which you can choose the right amount of them, based on the parameters of the heated room.
Aluminum products are also available in different heights, so it became possible to install such a battery in places where a cast-iron or steel analogue cannot fit. The working pressure parameters of such a heater reach 12 atmospheres.... Moreover, such a radiator has obvious advantages:
The main disadvantage of an aluminum radiator is considered to be its use only in closed heating systems with a high-quality coolant that has a neutral acid-base balance. Moreover, in All accessories and pipes must match the material of the battery... Aluminum easily reacts with any other metal. So, for example, on contact with copper, a galvanic pair is formed, which leads to electrochemical corrosion. Therefore, for wiring heating with aluminum batteries, a plastic pipeline is used with the obligatory grounding of radiators.
I would also like to note that when aluminum comes into contact with water, which is saturated with oxygen, a violent reaction occurs, as a result of which hydrogen is released. Gas bubbles, accumulating in the heating system, create not very pleasant sounds. Therefore, during the installation process, aluminum batteries are necessarily supplied with Mayevsky cranes to remove air jams.
Considering these features, the use of aluminum batteries in apartment buildings with centralized heating supply is not advisable. First of all, this is due to the quality of the coolant, which is not controlled by anyone.
As the name suggests, these batteries consist of different materials- steel and aluminum, while incorporating their best characteristics. The design of the internal circuit of the bimetallic radiator, in which the coolant circulates, is steel, which makes it possible to use such a device in any heating system. In turn, outer plates responsible for transferring heat to the environment, are made of aluminum - a material with a high coefficient of thermal conductivity. Plus, in addition to the advantages borrowed from the aluminum and steel batteries, the bimetallic radiator has the following advantages:
The only, but significant drawback is the high cost of the product, which is compensated by the reliability and long service life of the bimetallic radiator. Also, during the installation of such a bacterium, it is important to observe the distance from the device to the wall, which should not be less than 4 cm.
In conclusion, we can conclude that it is better to install cast iron radiators or bimetallic counterparts in apartments with a centralized heating system. In turn, in private housing construction, batteries made of steel or aluminum are considered the best option for price and quality.
In the current market saturated with varieties heating appliances Many manufacturers, it is sometimes very difficult for an ordinary homeowner who has decided to replace batteries to find the right products for their home. Our goal is to help solve this problem and figure out which batteries are best to put in an apartment or in a private house.
Having entered a large heating equipment store, it seems that there are countless types of heating batteries. In fact, there are only five of them:
All these types of heating radiators have different technical characteristics, as well as their own advantages and disadvantages that determine the scope of their application. Let's take a closer look at each of them, and clearly define which type of device is better to put.
This type of water heaters, well known to us from childhood, is used to this day, despite the emergence of many modern competitors, whose technical characteristics are much better. This is due to several reasons, for example, the high corrosion resistance of cast iron and the ability to work in systems with high pressure of the coolant. In addition, a tribute to tradition is important for many people and, despite any explanations, they are still convinced that cast iron batteries are the best.
This opinion is justified, since these devices are very reliable and durable, according to these criteria, they are unmatched, since they serve from 30 to 50 years. In addition, cast iron heaters retain heat for a long time, having great massiveness and inertia. This advantage is also a disadvantage: cast-iron batteries take a long time to warm up and cool down just as long, so it is very difficult to organize automatic climate control in the room where such devices are installed.
If earlier the appearance of cast-iron batteries left much to be desired, now many companies offer cast-iron heating radiators with various powder colors or with decorative casting.
True, this improvement brought traditionally cheap heaters out of the budget category, since such products are much more expensive. The rest of their shortcomings are well known: high weight and water capacity, although recently they have been reduced to a minimum.
The good thing about cast-iron batteries is that they can be installed everywhere: in an apartment, house, dacha. But it is best to use them for heating a private house, where a gravity system is organized. It itself is inertial and has a large volume of coolant flowing at a low speed. This is exactly what a massive cast iron appliance needs.
This type of heater is divided into two types.
Panel is good radiators for a private house, where the working pressure of the coolant does not exceed 3 Bar. The fact is that their device and manufacturing technology provides for operation in a system with a maximum pressure of up to 15 Bar. This is often insufficient in a district heating environment, especially in high-rise buildings.
The panels have good heat transfer, relatively low weight and size, and also have an aesthetic appearance. There are also steel radiators with bottom connection, which makes it possible to install them in apartments with individual heating and piping hidden in the floor.
In addition, among all heating devices, steel panels have the lowest cost, so they often remain the only acceptable option. Among the disadvantages are sensitivity to corrosion and a relatively short service life (up to 15 years).
When you need to put a steel radiator in a central heating system, it is better to choose a tubular type device with thick massive walls that can withstand high pressure and water hammer. Therefore, such batteries can be installed anywhere, they are reliable and durable.
Another thing is that the cost of tubular devices is quite high, while there are disadvantages similar to cast iron batteries: inertia, large capacity and considerable weight. Because of this, they are rarely installed in country houses and other buildings with an individual heating system, preferring the same heaters made of cast iron or aluminum.
One of the most popular heating devices - sectional aluminum radiators - are distinguished by the best degree of heat transfer, quick heating and cooling, low weight and excellent appearance.
All these advantages are realized thanks to the body of the device, made of aluminum alloy. Vertical channels with a cross-section close to circular are made in it, and on the outside these channels are equipped with many ribs that intensively transfer the energy of the coolant to the air in the room. In turn, the flat surfaces of the aluminum battery emit an even flow of radiant heat. The physical properties of aluminum make it possible to organize automatic regulation of the heating power, since inertia in this case is practically absent. Promotes rapid heating and small capacity (up to 0.25 liters of water in each section).
Aluminum radiators for the home are easy to assemble and install due to their simple design and low weight. They can be attached to any building structure, even plasterboard partitions. It is only necessary to correctly calculate the required number of sections for heating the room; sales representatives or online consultants of online stores will always help you with this.
As for the shortcomings, there are only two of them. The first is akin to steel panels: a low threshold for maximum operating pressure (up to 16 bar), which makes the installation of aluminum batteries in district heating systems risky. The second is the usual and electrochemical corrosion of the alloy due to the impact on it of a low-quality coolant from the central heating networks. Therefore, aluminum is best radiators for any individual heating systems, where the quality of the coolant is controlled by the homeowner himself, and the pressure in the system is controlled by the boiler automation. But in apartments with central heating, it is better to put bimetal.
In fact, bimetallic batteries are the same aluminum products, inside which there is a welded frame made of steel pipes with thick walls. As a result of such modernization, the disadvantages associated with the quality of the coolant and its pressure were successfully eliminated.
At the same time, heaters have a slightly lower heat transfer than purely aluminum ones, but much higher than that of steel or cast iron appliances. Therefore, in the case of centralized heat supply systems for heating, it is better to install bimetal radiators, they will serve for a long time and reliably, while giving off heat much more intensively than other types of devices. But it should be said that the cost of bimetallic batteries is significantly higher than that of aluminum ones.
Before drawing the line, it is worth saying a few words about products such as electric heating radiators. They are very effective and easy to install, all they need is a 220 V socket. Another thing is that the cost of electric heating turns out to be quite high, so heaters are often used as additional heat sources.
From the above, we can conclude that the choice of batteries largely depends on the type of heating system. If there is a financial opportunity, then it is better to put aluminum appliances in a private house as the most economical ones. When this is not possible, then steel panels will do, and with a gravity system, cast iron heating devices. The same applies to apartments with an individual heat source. But in centralized networks, cast iron or bimetallic batteries, as well as steel tubular ones, will be appropriate. Much of the choice depends on the homeowner's budget.
Everyone who is dissatisfied with the heating in their own home has a reasonable question: how will the replacement of batteries affect the temperature regime? If you live in an old house, replacing heating devices can make a difference. You just need to correctly decide for an apartment and by what criteria it is worth choosing them. This will be discussed in our material.
Before talking about how to choose radiators for heating an apartment, let's figure out the main point: which is better, central or heating?
This is not an idle question. These systems have different operating modes and specific operating conditions. The type of heating devices depends on which choice you make.
There were no options before. V apartment buildings there was always central heating. It is in modern new buildings that almost all developers offer an individual system that works or.
Let's compare the advantages and disadvantages of the two systems:
| Central | Autonomous |
| pros | |
| Stable temperature in the apartment throughout the heating season. | You can adjust the temperature depending on the weather. |
| There is no need to invest in periodic repairs and maintenance of the system - all this is included in the cost of housing and communal services. | Heating in the apartment can be turned on without waiting for the official start date of the heating season and turned off later or earlier, as necessary. |
| This method of heating your home is the most convenient and safe. | You can adjust the temperature in each room separately. |
| The system is independent of interruptions and. In large boiler rooms designed for apartment buildings, there are reserves to maintain work in emergency situations. | When using an autonomous heating system, you will significantly save your budget. In addition to reducing costs through temperature control, you can use the system for. |
| Minuses | |
| The prices for centralized heating are quite high, in addition, the services include costs "for that guy", unaccounted heat losses | To install autonomous heating in an apartment, a long process of coordination with numerous authorities will be required. |
| Heating is turned on and off on strictly defined dates, without taking into account weather and wishes of apartment owners | For the installation of the system, capital investments will be required; after installation, it is possible that it will have to be done throughout the apartment. |
| It will not work to adjust the temperature in the rooms and save on heating. | Autonomous heating depends on an uninterrupted supply of electricity and gas. |
| The safety of your home depends on the housing and communal services locksmith. If he untimely or too abruptly closes the tap, the resulting water hammer will destroy the batteries and lead to damage to property. | The boiler in the apartment requires special safety measures. The system must be monitored, periodic preventive inspection and maintenance must be carried out. |
Now that you have an idea of weak points of both heating systems, you might think about how to choose a radiator for your apartment.
There is a practice-proven list of basic criteria for heating radiators. How to choose devices:
Each type of heating battery in the apartment has its own characteristics... They differ in material, design specifics and permitted pressure.
Main parameters table:
| Radiator material | Warranty periods, years | Permissible pH of the heating medium | Working pressure / pressure / burst pressure |
| Cast iron | 10 | 9 | 9/15/25 |
| Steel | 1 | 9 | 12/9/18 |
| Aluminum | 3-8 | 8 | 20/30/50 |
| Bimetal | 3-10 | 9 | 35/57/75 |
These four main types of radiators are most in demand in apartment buildings. Let's take a look at the advantages and disadvantages of each.
Cast-iron batteries are at least one hundred and fifty years old, and rare exhibits can be used for their intended purpose even today.
Advantages of cast iron radiators:
| Advantage | Description |
| Corrosion resistant | The inner surface of the radiator from contact with water is covered with oxide, which protects the metal from contact with oxygen. To prevent such batteries from rusting on the outside, they just need to be painted. |
| Undemanding to the coolant | Cast iron calmly tolerates the presence of sand particles in the coolants, does not be capricious because of the pH level. Thick walls, resistance to chemicals and high temperatures make it one of the most reliable materials. |
| Connectivity with other materials | Cast iron batteries can be docked with steel and plastic pipes. The material perfectly withstands water shocks up to 25 atmospheres. |
| Maintainability | For cast iron batteries, sections can be replaced if necessary. These batteries can be cleaned from the inside and disassembled. |
| Long service life | Such radiators can last for at least half a century, and with proper care, even more. |
Cast iron models also have their disadvantages, which you should be aware of before making a choice:
| Flaw | Description |
| Slow heating | Cast iron heats up very slowly, so that from the moment the heating is turned on until normalization temperature regime it can take half an hour - an hour in the room. But on the other hand, it cools down for a long time, keeping it warm. |
| Low heat dissipation | In comparison with models made of steel or aluminum, the heat transfer of cast iron is one and a half times less. |
| Heavy weight | Each section of such a battery weighs at least 6 kilograms. Plus the weight of the coolant is about another kilogram. |
| Price | The prices of cast-iron heating batteries are not the most affordable. The cost of the section starts from 500 rubles. |
Opponents of cast iron batteries may argue that this is not the most aesthetically pleasing device. And by the way, they will be completely wrong, look what masterpieces modern manufacturers offer, can you really compare them with primitive radiators made of aluminum and steel?
Now you can buy steel radiators in almost every store. household appliances... And more recently, they were new to most buyers and, with their appearance on the shelves, began to enjoy wild popularity. This is understandable: such batteries look weightless and neat, not like the old cast-iron monsters that were in Soviet apartments.
The main advantages of steel batteries:
| Advantage | Description |
| Good thermal conductivity | Steel panel heating radiators have thin walls, which allows them to warm up very quickly. |
| Long service life | The design of steel radiators is very primitive, due to which they can last up to ten years, provided they are carefully maintained. |
| A light weight | The weight of steel tubular heating radiators is 3-4 kilograms. They are easy to install, they can be connected to the coolant pipes in several ways. |
| Price | Price steel models low and affordable for most middle-income consumers. The cost of one section is from 300 rubles. |
Steel batteries cannot grow like cast iron ones. And this is not the only drawback of such devices:
Considering all of these disadvantages, it can be concluded that steel radiators are not suitable for central heating systems. They can only be used for autonomous heating in an apartment or a private house of a couple of floors.
Lightweight aluminum batteries have excellent performance. They appeared relatively recently, in the sixties of the last century, and over the years they have proven themselves quite well. Before you decide which aluminum radiator to choose, check the specifications of models from different manufacturers. They may differ in terms of the level of heat dissipation.
Average heat transfer rates of aluminum radiators, table:
Returning to the issue of using different types of batteries in apartments with autonomous and centralized heating, it should be noted that aluminum radiators are not the last in the rating. They have their own advantages:
| Advantage | Description |
| High heat dissipation | The low inertness of aluminum results in excellent heat transfer characteristics. Aluminum batteries heat up very quickly. |
| Temperature control | Radiators made of lightweight material are equipped with thermoregulation devices. This allows you to set different temperature conditions in the premises. |
| Easy to install and transport | Aluminum is a lightweight material. These batteries can even be hung on frame walls... You can add and remove sections as needed. |
| Variety of design | Aluminum batteries have a wide the lineup, it is not difficult to find a radiator suitable in size and design for your design. |
At the same time, there is a fly in the ointment in this barrel of honey, which will not allow the use of aluminum appliances for central heating systems. So the disadvantages:
| Flaw | Description |
| The need for constant pressure | For normal operation, aluminum radiators need a stable pressure of up to 10-12 atmospheres. Such conditions are difficult to maintain in large system central heating. |
| Chemical sensitivity | Oxygen enters into a chemical reaction with aluminum. As a result, hydrogen is produced, which causes air locks and noise in the batteries. |
| Selectivity in mounting materials | Do not use brass, steel or copper fittings for fastening. Contact with these metals leads to corrosive processes in the radiator and the formation of surface discharges. Such batteries must be grounded without fail. |
There is only one conclusion from all this information: aluminum is an excellent material, but it is only suitable for an autonomous heating system. It is not suitable for the central one.
Such radiators are called bimetallic because of the special design, consisting of tubular steel and aluminum. The combination of these two metals makes it possible to create devices that compete with the strength and reliability of cast iron. This invention is already more than 60 years old, this time is quite enough to determine the operational characteristics of the device. The main characteristics of heat transfer of bimetallic heating radiators, table:
Are monolithic panels without welded joints. And since there is no welding, then there will be no leakage.
Advantages of bimetallic radiators:
| Advantage | Description |
| High pressure resistant | The monolithic structure allows bimetallic radiators to withstand pressures up to 75 atmospheres |
| Chemical resistance | The insides of such radiators are treated with a composition that prevents water and oxygen from contacting metal. |
| High heat dissipation | Such batteries heat up quickly and give off heat well. |
| Thermoregulation capability | Modern models are equipped with special devices for temperature control, which allow you to fairly accurately control the climate in the room. |
| Lightness and decent design | Bimetal radiators are lightweight and stylish. They are easy to install and fit any interior. |
It would seem that this is a simple answer to the question of which heating batteries are better for an apartment: bimetallic. Everything about them is wonderful, but there are a couple of significant drawbacks:
Thus, bimetallic devices are excellent for central heating systems. They are a model modern technologies and high efficiency.
Related article:
From the publication you will learn the field of application of devices, their design, varieties, selection criteria, how to correctly calculate the number of sections, manufacturers and models, installation secrets.
To calculate the number of heating radiator sections, you need to know two basic values:
For your information! The radiator data sheet usually indicates the maximum heat transfer of the device.
The easiest way is to calculate the number of battery sections by. To do this, you need to multiply the height, width and length of the room. The resulting value is the area. To determine the amount of heat for heating a room, the result must be multiplied by the regional standard. For central Russia it is 80 W, for the north - 150, for the south - 60.
But this will only be an approximate calculation, without taking into account the material of the walls. The resulting heat demand should be divided by the heat transfer of one section of the battery. As a result, you will receive the required number of sections. For the calculation, a table of heat transfer from heating radiators with average indicators is useful:
You can go an even easier way. Just take into account that one cast iron section heats 1.5 square meters, aluminum - 2, bimetallic - 1.8. If you have a room of, say, 15 squares, then draw a conclusion: you need 10 sections of a cast-iron device, 8 sections of aluminum and bimetallic.
But this, recall, is just an approximate calculation.
Important! When choosing radiators, be sure to take into account the pressure level in the central heating batteries.
A wide range of modern heating batteries for apartments from various manufacturers is presented on the domestic market. We have selected for you the top three manufacturers in each segment. So, the rating of heating radiators for an apartment:
Aluminum radiators:
Bimetallic radiators:
Cast iron radiators:
Steel radiators:
Which heating radiators are better to put in the apartment is up to you, but if you choose the products of one of the listed companies, you will definitely not go wrong.
Choosing the right radiators is not as easy a task as it seems at first glance. Consideration should be given to the type of heating system, the technical characteristics of the products and the need for space.
Heating system efficiency and durability private house depends from many factors, including from correctly selected heating radiators... It is important, even before starting installation, to understand their characteristics and features and decide which of them best meets the requirements you have presented.
In country houses and cottages, the heating system is usually connected to and differs from centralized systems. The most important ones are:
Unlike centralized systems. in standalone. with the correct operation of the boiler. the likelihood of a water hammer is practically excluded. This feature, as well as the low pressure of the coolant, allows you to use almost any type of radiator without fear of destruction and leaks.
If water is used as a heat carrier, its quality can also affect the operating conditions of the radiators. In particular, hard water with a large amount of salts can cause sediment to form on the inner surface of the radiators, and, as a result, to narrowing the gap and impairing heat transfer.
The type of system - open or closed - is also important.
In an open system Oxygen dissolved in water is constantly present, which at elevated temperatures leads to rather active corrosion of some types of radiators.
V closed systems
With the membrane expansion tank, oxygen, during the initial heating of the coolant, is bound into insoluble compounds - metal oxides, after which corrosion stops until a fresh portion of water is poured.
Also, in private heating systems, antifreezes are sometimes used that do not freeze at subzero temperatures. Their use allows stopping the boiler in winter time which is convenient for country cottages and houses used for intermittent residence. Not all types of radiators can be used in antifreeze systems.
Currently on the market there is a huge selection of models made of different materials and with different heat dissipation. Before choosing heating radiators for a country or private house, you need to study their features and technical characteristics.
The most common types of radiators:
They differ in shape, appearance, permissible pressure, heat transfer, as well as other characteristics, having studied which you can make the best choice.
They have a prefabricated structure and consist of the required number of sections, providing the heat transfer required for the room. The history of using cast iron radiators is very long; they began to be used in heating systems more than a century ago. At the same time, their durability has been tested by time, and in old buildings you can find normally functioning cast-iron radiators installed more than half a century ago.
Advantages of cast iron models:
Disadvantages of cast iron models:
They can be made in the form of panels or have a tubular structure. Steel panel radiators, completely unsuitable for centralized systems due to the low value of the ultimate pressure, are widely used in private houses. They have a small thickness, aesthetic design and low price.
Tubular steel batteries are similar in design to cast iron ones and have a prefabricated sectional structure. They are more expensive than panel ones, but at the same time they have a more aesthetic and attractive appearance and can decorate the design of a room.
Advantages of steel models:
Disadvantages:
This type of radiator is widely used due to the combination of low price and good heat transfer. The prefabricated structure allows you to select the required number of sections. However, the use of aluminum radiators for heating a private house has a number of features.
Distinctive feature of aluminum- resistance to corrosion in atmospheric conditions in a neutral environment. With a low quality of the coolant, with a shift in pH, active corrosion of aluminum begins with the release of hydrogen. Because of this, airing of the system occurs, which can lead to noise, bubbling, and in some cases to a sharp increase in pressure in the system, ruptures and leaks. To avoid corrosion, aluminum is coated with a protective coating on the inside and a durable powder paint on the outside.
Advantages of aluminum radiators:
Disadvantages of aluminum models:
A more expensive but durable type of aluminum radiators with extra durable coating... After manufacturing, aluminum sections are processed, after which aluminum oxide is formed on the surface, which is resistant to any type of corrosion, the appearance of solid deposits, the deposition of dust and dirt.
Advantages of anodized radiators:
They have only one drawback.- high price.
Their design is based on the joint work of two metals: steel and aluminum. At the same time, the advantages of steel and aluminum radiators are realized in bimetallic models - corrosion resistance and increased heat transfer. The weight of bimetallic batteries is also light. 
Bimetallic radiators are a prefabricated structure, while all parts in contact with the coolant are made of steel, and the external panels that radiate heat into the room are made of aluminum coated with powder paint.
Steel, when used in systems with any type of heat carrier, is resistant to corrosion, and, unlike aluminum, is not prone to gassing. The outer surface of bimetallic radiators, made of aluminum, has high thermal conductivity, quickly heats up the room and does not weigh down the structure.
Thanks to these characteristics bimetallic radiators are highly demanded and popular with owners of private houses, even despite the high price.
Advantages of bimetallic models:
Lack of bimetallic models:
Having considered the described characteristics, we can draw conclusions about which radiators are more practical and better for heating a house.
Installing a boiler in a private house is not always advisable. For example, if it is impossible to connect to gas and a high price for solid fuel, in some regions it is easier to install cheap electric heaters.
Electricity is not a cheap resource, but if you count all the costs of buying and installing boiler equipment and installing a heating system, it turns out that with the help of electric heaters you can heat a house with these funds for several years. This is confirmed by the numerous reviews of the owners of summer cottages and houses with periodic residence.
When talking about electric radiators, they usually mean convectors or oil heaters. Their use has a number of peculiarities.
Convectors outwardly similar to panel steel radiators, they have a small thickness and dimensions, different power. They can be hung on the wall or installed on the floor, usually the models are equipped with legs and brackets for attaching to vertical plane... Most modern ones are equipped with an automatic temperature control system, and sometimes a timer. They are quiet, safe, and quickly heat up the room. 
Oil radiators- an analogue of floor-standing cast-iron batteries, they have a prefabricated sectioned structure, from the inside they are filled with oil with a high heat capacity. Like convectors, they are equipped with sensors and a regulator, and sometimes a fan. We quickly heat up the air, but it is better to use them under supervision: the oil is highly flammable, and if it leaks, it can cause a fire.
Video: requirements for heating systems of a private house
The choice of radiators for a private house is a crucial step on which the performance of the system as a whole depends. It is allowed to combine different types of radiators, taking into account the peculiarities of using specific models, and heating the house will be efficient and safe.
When construction works completed in the house, the question arises of how to arrange the heating system so that the house is warm. The main component of the heating system is, of course, heating radiators. Their choice must be approached with particular seriousness, because the strength, durability and reliability of your system depends on it.
The downside is the prohibitively high price, which is inaccessible to the middle class. You can buy cheap models of bimetallic radiators, but only the name remains of the qualities in them.
It is not advisable to use bimetallic radiators for a private house due to the high cost. They have the greatest strength, but the local heating system does not have high pressure, so the advantage of this radiator is useless in this case.
By structure, radiators are divided into tubular, sectional, convector and panel radiators.
All batteries have functional drawbacks. The convector radiator is durable, economical, safe and beautiful enough. The only drawback is the high price, because they are made from high-quality and expensive materials.
Correctly giving preference to one or another type of radiator will help such a characteristic as power. It is easy to calculate it: in a room with a ceiling height of 300 cm and one window, 100 watts are needed to heat one square meter. When the room has two outer walls, add another 20%. If there are two outer walls and two windows, add 30%. When the window exits to the north side - you should throw 10%. An important factor will be the installation of radiators, because no matter how good you buy the batteries, if they are installed incorrectly, there is still zero sense from this. Loss of heat
When choosing heating radiators, you should rely on the technical characteristics of the radiators and the heating system itself, as well as the budget. With proper study, you can always find a middle ground for yourself.
