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How to choose a radiator?

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How to choose a radiator?

Autumn is coming to an end, and this means that outside the window it will be colder day by day. Therefore, it is so important that the house is always cozy and warm. Let's talk more about how to choose a heating radiator for the house.

How to choose a radiator: tips

First of all, check the reliability of your heating system, which will warm you in winter evenings. It may have failed.

You need to know that the center of the heating system is a radiator. Water heated to a certain temperature, circulating through pipes, ultimately enters the radiator, which heats the room.

The type of room in which you live will determine the choice of radiator. If you live in an apartment, stop your choice on an open heating system, and if in a private house, use a closed system. This characteristic will also affect the technical performance of the radiator, namely, the temperature and pressure of the coolant.

You can learn more about connecting radiators in our article How to connect radiators.

As for the pressure of the coolant, it is important to take into account the working and test pressure.All information regarding pressure you should get in the housing office. We only note that the working pressure is constant for the entire heating season, and the test pressure is supplied only once a year, for a short period (several hours), in order to determine the readiness of the heating system.

Comparative characteristics of radiators

Cast iron

The most common type of radiator, which has been used for many years. Despite the fact that today there is a huge assortment on the market, many prefer it to cast iron radiators. And rightly so.

Cast iron radiators are distinguished by their durability and durability. And all because the weight of only one section, without taking into account water, reaches at least 7 kilograms.

They are also resistant to corrosion, which can be formed as a result of the supply of hard, polluted water through pipes. Pig-iron radiators will cope with abrupt pressure drops and will keep heat for a long time in case of a sudden shutdown of heating. But, at the same time, such radiators do not heat up quickly.And the impressive size complicates their transportation and installation.

The price of one section ranges from 5 to 25 euros. Significantly affects the price of the appearance of the radiator. Currently, cast iron radiators can boast a huge variety. Despite their bulkiness, they can look sophisticated and elegant due to the design of monograms, painted in copper, bronze and other colors.

Aluminum

Aluminum radiators are considered to be the successors of cast iron. They appeared on the market about 30 years ago, but are already in demand.

You can meet both sectional (collapsible) and solid (non-separable) radiators. The advantage of sectional is the ability to independently choose the number of sections. That is, if necessary, you can dismantle unnecessary sections, or, conversely, add them. This will effectively heat both large and small rooms. But for collapsible radiators there is a risk of damage to the sections at their junctions, while non-separable ones can last much longer.

Low weight, high thermal conductivity - these are all the undoubted advantages of aluminum radiators.The disadvantages include the susceptibility of aluminum to corrosion. To prevent this, the coolant must meet high chemical requirements.

The price of one section from 10 to 15 euros. Aluminum radiators will perfectly fit into any interior thanks to a wide choice of models.

Steel

Outwardly, they are a cast structure consisting of ribs that are interconnected by vertical channels. Radiators from steel are better suited for private homes. In the heating system of apartments in the coolant contains a large amount of oxygen, to which steel radiators are very sensitive. They do not take up much space. They have a large amount of heat transfer, which reduces the amount of coolant. At the same time, radiators do not tolerate a sudden change in pressure.

Steel radiators are divided into panel and tubular. Tubular radiators are more powerful than panel radiators, but their cost is higher.

The cost of a tubular radiator for 1 kW of thermal power is 130-150 euros.

Bimetallic

If you can not choose between aluminum and steel radiators, pay attention to the bimetallic.They are made from alloys of aluminum and steel. The basis of the radiator is steel (the inside), which, in contact with water, does not cause corrosion. The outer part is made of aluminum, which has high heat dissipation.

Everything together makes it possible to talk about the high reliability of bimetallic radiators that can last for a long time.

When buying such a radiator, you should take into account that they are full bimetallic and non-full bimetallic. The internal structure of the latter consists not only of steel, but also of aluminum, which is not entirely reliable. Therefore, stop your choice on full metal radiators.

The price for one section is from 20 euros.

Copper

Made exclusively from copper, without admixture of other metals. Copper has a high thermal conductivity (2 times higher than that of aluminum, and 6 times higher than that of steel and iron). The use of copper radiators allows you to quickly warm up the room (from 3 minutes) using a small amount of water. After using it for 3-4 days, an oxide layer forms on the inner surface of the radiator, which then acts as protection against chemical damage. The price of a copper radiator is much higher than others.

Remember that specifications play a dominant role when choosing a radiator. Of course, the price and design are important, but do not skimp on such a durable purchase.

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