Diagonal connection of the radiator: scheme, pluses and minuses

Heating batteries can be connected in one of three circuits. When choosing it is necessary to take into account that each has its pros and cons. As a basis of choice, the pipe layout scheme is used. Diagonal connection of the heating radiator is not used in urban apartments, since they usually have a side connection. However, some home masters and experts in choosing an effective system prefer the diagonal option.

Diagonal Connection Diagram Features

If you also wondered why the diagonal connection is the most effective, then this option should be considered in more detail. If we take into account the process where hot air or water is involved, then the action will take place according to a single physical law, which involves lifting the warm masses upward, while the cold ones go down.

To ensure an even distribution of heat over the volume of the radiator, it is necessary to distribute the coolant over the battery. As it was mentioned above, the side connection in the city apartments acts as the main circuit. After all, it uses forced circulation under high pressure. The diameter of the outgoing and outgoing nozzles is only 20 mm. Through them, water enters the battery under high pressure, which allows you to fill the device evenly and quickly.

If it is a question of private housing construction, where the circulation is natural, the filling of radiators occurs under the influence of the above-mentioned physical law. That is why hot flows penetrate through the upper branch, pushing cold water through the lower outlet from the opposite side. Two nozzles are placed diagonally, if we consider the device. Hence the name of the connection. The heat carrier fills the battery gradually, giving heat to the entire volume. It is necessary to take into account not only the heat transfer law, but also the physical law. That is why this scheme is the most effective.

Features of the implementation of the diagonal scheme

Diagonal connection of a radiator of heating you can realize independently. Work should begin with battery preparation. For this you need to take care of availability:

• The heating devices themselves;
• Stop valves;
• Pipes;
• Fittings;
• Other additional devices by type of heat meters, Maevsky crane and thermal head.

At the first stage of the work, a radiator is installed. It is necessary to take into account the rules. This is due to the fact that they will depend on the efficiency of heat transfer. When a diagonal connection of the heating radiator is used, the part of the window opening must coincide with the axis of the radiator. Up to 15 cm above the top collector, it is necessary to observe a distance of 15 cm. As for the step from the floor to the bottom of the collector, it should be the same. From the wall to the battery, you need to set the distance to 5 cm. Accuracy can take place to be. If it is a question of distance to the window sill or floor, the error can reach 4 cm, while the step between the battery and the wall can be increased or decreased by 1 cm.

If you decide to use the diagonal connection of a heating radiator, you must take into account some assumptions that will affect the heat transfer rate. For example, if there is no window sill in the room, then this figure can be increased by a maximum of 20%. Approximation of the battery to the floor will reduce the heat transfer by 7%. To improve the efficiency of heat recovery, professionals recommend to supplement the radiator with a reflective screen that is mounted on the wall. Use for this can be a sheet of fiberboard or cardboard, each of which is covered with foil. In this case, the heat transfer will be increased by 25%.

Recommendations for implementing a diagonal connection scheme

If you want to achieve the correct operation of the radiator, then you should approach the installation and installation with the utmost care. It is important to set the device horizontally. You can get rid of distortions using the level. At this stage, it will be important to apply the markup. Once the markup can be applied, you can install the brackets.

As a fastener, a self-tapping screw is used, which is installed on plastic dowels. On sale today, you can find brackets that have the shape of pins. They are screwed into a dowel of impressive diameter. Now everything is ready to install the radiator and connect it to the pipeline system.

Complete set of radiator for diagonal scheme

The diagonal connection diagram of the radiators necessarily involves the completion of the battery. To do this, it is supplemented with a Maevsky crane, with which you can let go of air. It is necessary to take care of the presence of metal couplings, which are still known as American. They are installed in the branch pipe, for this purpose it is necessary to apply threaded metal couplings. To the latter, the valves are strengthened, for each branch pipe there must be one such element. This will cut off the battery from the heating network if you encounter the need for repair. The system itself will work in the normal mode.

More information on the diagonal connection scheme

The diagonal scheme of connection of radiators of heating in city apartments is used rather seldom. However, according to experts, this technique can be used if the number of sections in one battery exceeds 12 pieces. With the lower lateral connection, as well as with the circulation of water under pressure, the head can not absorb as many sections. Extreme will remain a little warm, and there will be no sense from them.

This scheme is used in a two-pipe wiring system. The falling contour must be connected to the upper branch pipe, whereas the reverse one must be connected to the lower one. If the circulation is forced, then the connection can be reversed, but in this case you will encounter a decrease in efficiency.

For reference

When diagonal connection of radiators in a private house is used, the thermal losses through the batteries are 2%. Therefore, when carrying out thermal engineering calculations in this case, the coefficient is taken, which is 1.1.

Main types of connection

There is also a one-way connection, in which the hot water pipe and the return pipe will be connected from one side of the radiator. The application of this principle is rational for single-story buildings. A circuit is suitable in case you want to connect a long radiator with a number of sections to 15. But if this parameter is increased, the heating efficiency will decrease, because the last sections will be colder.

Considering the main options for connecting radiators, you should also pay attention to the lower connection, which is suitable for those systems whose pipes pass under the floor surface. In this case, above the surface there will be a small piece of pipe, which is fed to the lower branch pipe. The supply pipe is installed on one side of the battery, while the drain pipe is on the other. The disadvantage of this method is significant heat loss, which reaches 15%. At the top, the battery may not warm up completely.

Important to remember

Single-pipe diagonal connection of radiators is used quite rarely, because such a scheme has a significant drawback, expressed in the absence of the possibility of regulating the heat supply. Thus, the user will not be able to adjust the degree of heating of the radiators, in some cases this feature is a significant disadvantage. However, the heat transfer is calculated when the heating project is created, and in the future it must meet the specified parameters.

Main advantages of diagonal connection

The diagonal method is good in that it can provide the highest heat transfer coefficient. This is true if we compare with the other schemes described above. In other words, in the case of a diagonal connection, it is possible to provide a room with a maximum amount of heat. Diagonal connection of radiators in the apartment should ensure the movement of the coolant inside the battery with the formation of a gradient circuit.

The effectiveness of this scheme can be reduced, which will happen with a large number of sections. But even in this case the limiting number of them can be 24, whereas with the lateral scheme this parameter is only 12. This feature can be considered an important advantage, because you can use longer radiators. With lateral connection, an increase in the number of sections will be accompanied by a less efficient operation of the elements located on the sides.

Main disadvantages

Diagonal connection of heating radiators, the pros and cons of which are described in the article, can be used by you. An important drawback of this scheme is not very attractive design. After all, you can not argue that the additional pipe does not look very aesthetic. It connects the return pipe and the upper branch pipe of the radiator, the first of which passes from below. It can also be considered a disadvantage that not all urban apartments have the opportunity to provide this type of connection. After all, when building Soviet high-rise buildings, they tried to minimize the consumption of materials, and often did not install a separate by-pass.

Conclusion

Diagonal connection of the radiator with a single-pipe system, although undesirable, is still possible. But at the same time, you should take into account that in order to increase the level of heat transfer it is important to take into account the increasing coefficient, which sometimes reaches 1.2. Thus, the heat transfer rate must be increased by 20%.