How to choose bimetal radiators heating

With the onset of cold weather, each of us thinks more and more about how important a correctly selected and customized heating system. Its main criteria are maximum allowable thermal conductivity, ability to withstand significant pressure drops, as well as structural strength and reliability – no one wants to “flood” the neighbors from below. Having analyzed a great variety of models on sale At present, it can be concluded that the most complete modern bimetallic radiators meet this requirement – models based on a combination of two dissimilar metals.

How to choose bimetal heating radiators

How to choose bimetal heating radiators – which company it’s better?

Given the popularity of such devices, their release is currently many manufacturers involved in one way or another involved in the time production of plumbing equipment and heating appliances. However, not all of them can be recommended for purchase – lack of experience, coupled with a low manufacturing culture and a large number of marriage is doing its job. This is evidenced by many negative customer reviews on the Internet that must be taken into account. Best rightfully considered products of those manufacturers who work on this field for a long time and managed to rid their products of most mistakes and “sores”:

  1. Global style

  2. Rifar zin

  3. Skypril

  4. Tenrad

  5. Royal thermo

Key selection criteria

When choosing bimetal heating radiators, it is necessary to pay attention to a number of technical features that directly affect general functionality and resource of a particular device.

Heat dissipation

Parameter displaying the amount of heat dissipated per unit time. Responsible for maximum efficiency. outer aluminum shirt, this particular metal is characterized maximum heat dissipation coefficient. Most standard radiator models equipped with standard diameter inlet, have a heat transfer of 170-200 kW, which at 30-50% higher than standard steel or cast iron radiators.


An extremely important parameter that directly affects the overall operability of the heating system, as well as the absence of problems with neighbors due to flooding of their apartment. The key parameter is strength and thickness of the inner steel jacket. You can buy recommend models with a shell thickness of at least 2-2.5 millimeters. This is enough to withstand operating pressure in the system up to 40-45 atmospheres, and pressure testing – about 55-60 atmospheres.

Working and pressure testing

Parameters indicating at which maximum pressure the heating system is able to work. Distinguish working pressure – the value that constantly operates in the cooling system, and also pressure testing – a parameter indicating the peak the load required for the final installation of the heating system. Practice shows that the value of pressure testing almost always 25-30% higher than the worker.

Connection method

Any heating system and its radiators in particular have two openings – inlet and outlet. Their location depends on specific model, and also directly affects the specific method device connection. Depending on this parameter, following methods:

  1. Top connection – both system pipes are connected to top of the radiator;

  2. Bottom connection – input and output are located below;

  3. Lateral connection – both input and output are located on one side, top and bottom, respectively;

  4. Diagonal connection – the radiator entrance is located below left, exit – top right or vice versa;

Radiator type

All radiator models on sale in the present moment of time, can be divided into several conditional groups:

Panel radiators

Panel radiators

They are one of the most budget options, and therefore are very popular among buyers. Device efficiency this class is relatively high – it reaches 75-78% among the best models.


  • Low inertia;

  • High environmental friendliness;

  • Affordable cost;

  • High efficiency;

  • Excellent heat dissipation;


  • Susceptible to corrosion on contact with water surfaces;

  • Steel models are afraid of water hammer;

Sectional Radiators


Models, which are a kind of designer, the performance and heat transfer of which is regulated by Add or exclude individual sections of the device. Possess high efficiency (at the level of 85%), as well as excellent heat transfer, and because they are one of the best solutions for installation in multi-family residential buildings.


  • Low inertia;

  • High environmental friendliness;

  • High efficiency;

  • Excellent heat dissipation;


  • Susceptible to corrosion on contact with water surfaces;

  • Fairly high cost;

Tubular radiators

Tubular radiators

Represent a design from metal pipes, inside which passes the coolant (usually hot water). They are distinguished by a peculiar design that suits far from each room, as well as high thermal conductivity and ability withstand significant working and pressure testing.


  • Ability to withstand significant working pressure without risk leaks;

  • Extravagant appearance;

  • High efficiency and heat dissipation;


  • High price;

  • The complexity of the installation;

Calculation of the required number of sections

Devices of this class are a kind of constructor, consisting of many panels. Their number is selected in depending on the area of ​​the room, as well as on its mode operation. The formula for calculating the necessary the number of sections for a particular room, has the following appearance:

  1. The area of ​​the heated room is calculated;

  2. The resulting value is multiplied by the normative indicator – 100W;

  3. The calculated value is divided by the heat transfer of one section a heater. You can find this parameter in the instructions;

The resulting value is the number of sections that necessary for the correct functioning of the heating system. Rounding the value up is required. Alternative the calculation method is a trivial division of the area into 2 – it is this number of square meters that one heats radiator section.

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Video for choosing a heating radiator

Attention! This material is subjective opinion of the authors of the project and is not a buying guide.

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