Lower connection of heating radiators: pros and cons, installation features, overview of popular models

One of the most important stages of installing a heating system is the connection of batteries. The technology of this procedure can be used different. Very often specialists, for example, use the bottom connection of radiators. This technique has both its pluses and minuses. The lower connection of the radiators can also be made, in turn, also in several ways.

The main advantage of technology

The piping of pipes during the installation of the heating system is most often performed in an open manner. Of course, you can hide the mains and walls. However, this procedure is very time-consuming and expensive. Passing directly to the sight of the pipes in any case very much spoil the appearance of the room.

The lower connection of the heating radiators makes it possible to make the lines as invisible as possible. Pipes are laid in this case or at the very bottom of the wall, or even under the floor.

What other advantages does the technique have?

In addition to the opportunity to make the interior of the apartment more attractive, the lower pipe laying is also distinguished by the following advantages:

• Possibility of installation of the adapter of the bottom stream;

• Relative ease of installation.

There is one more unconditional plus for this technology. The owner of the house does not usually need to purchase an additional thermostat. On heating radiators with a lower connection, it is most often already installed initially.

Disadvantages of the method

Of course, the bottom battery connection is not only advantages. There are certain drawbacks to this technique. To such can be attributed in the first place:

• The need to install an air vent on each radiator;

• Less efficient and uniform heating of the premises in comparison with other methods of connection.

The loss of heat when using such a connection can reach 15%. This, of course, very much. The lower connection of the heating radiators is mainly used only in forced-type systems. For gravity this technology is usually not used. It can be used in this case only if there is a special accelerating circuit. That is, with a lower connection in the gravitational system, an artificial height difference is created. From the boiler the pipeline rises almost to the ceiling. Then it goes down to the level of the windows. Further, the wiring to the radiators is already carried out.

Which schemes of forced heating can be used

In homes, basically two types of such communication systems are mounted: two-pipe and one-pipe. пройдя по кольцу, вода возвращается к котлу уже охлажденной. In the first case, after passing through the ring, the water returns to the boiler already cooled. Such systems are used mainly only for small houses or summer cottages.

In the two-pipe circuits, two rings of lines are mounted. This design allows you to heat the premises with greater efficiency. In this case, 2 tubes fit each battery. The lower connection of the radiators is used in both of these schemes.

What kind of batteries can I use?

The inlet and outlet connection of the radiators with the bottom connection are located, respectively, in the lower part. In the market there are also universal batteries. They have four holes for connecting the mains. Such radiators can be embedded in the system by any means. я. Of course, it is permissible to use them for the lower connection . The remaining two outputs in this case are simply closed with reliable plugs.

Sometimes for the bottom connection, radiators are used, designed for lateral insertion. However, in this case, you must additionally use a special mounting kit.

Depending on the type of radiators purchased, in this way, three basic technologies for their lower connection can be used. Actually, the pipes themselves in this case can be laid either directly on the wall, under the radiators themselves, either inside the latter or under the floor. When installing the heating system, the radiators are firstly attached to the walls. And only then the pipes are brought to them.

Types of batteries

It is possible to produce radiators with a lower connection from different materials. Cast iron models of this type are rarely found on the market. In most cases, batteries with a bottom connection are made of steel or aluminum. Such models are relatively inexpensive and have a modern appearance and reliability. However, the most popular among consumers use bimetal radiators with lower connection. Such batteries are made using aluminum and steel at the same time. Actually, that's why they are called bimetallic. Such radiators cost more than steel ones. But the price for them is usually less than for aluminum.

Steel radiators with lower connection, as well as with one-sided or diagonal, have one pretty serious drawback. Over time, they begin to rust. Aluminum models also serve not too long. In addition, such batteries can not be used in the presence of a large amount of impurities in the coolant. Bimetallic radiators of such drawbacks are deprived.

The most popular models with a lower connection

Efficient heating system in the house will, of course, only subject to the selection of quality equipment. This concerns also the radiators. Batteries with a lower connection are produced today by almost all companies specializing in the production of such products. In most cases, they are supplied with models of quite decent quality to the domestic market. But the best customer reviews deserve all the same batteries with a lower connection of such brands as:

• "Kermi."

• "Rifar".

Radiators "Kermi": the pros and cons

одноименной немецкой компанией. Batteries of this brand are produced by the German company of the same name. Their absolute advantages include excellent build quality and relatively low cost. отопления «Керми» с нижним подключением оборудуются термостатом. Heating radiators "Kermi" with a lower connection are equipped with a thermostat. The temperature regulators supplied with these batteries are not included. Use "Kermi" batteries with a lower connection, usually only for tapping into two-pipe systems. You can apply them in single-tube circuits. However, in this case, the installation is carried out using special fittings. одели с нижним подключением «Керми» как FKV. The models with the lower Kermi connection as FKV are marked.

Radiators "Rifar"

Batteries of this brand are produced by a Russian company. In the delivery set of Rifar radiators, among other things, there is a regulating thermostat. The most popular with the consumer is the bimetallic battery of this brand. радиаторов отопления «Рифар» с нижним подключением относят в том числе и простоту монтажа. To the pluses of the Riefar heating radiators with the lower connection, they include the simplicity of installation. модели э той марки при необходимости можно без привлечения специалистов — самостоятельно. To install models of this brand if necessary, you can without the involvement of specialists - yourself. Batteries with a lower connection "Rifar" are labeled by the manufacturer as Ventil.

Features of the hitching

Mounted radiators to the wall, including the lower connection, usually on the brackets. At the same time, the building level is used. в сторону обратки. Hang batteries on the walls with the bottom connection more often with a slight bias towards the return. эффективнее удалять пузыри воздуха из системы . This method of installation allows more efficient removal of air bubbles from the system . But you can fix the radiators on the wall and strictly horizontally.

In this case, follow the recommendations of the battery manufacturer itself. More often than not, companies that manufacture such equipment are advised to install it with a slope of 3-4 mm. This is the way in most cases aluminum heating radiators with a lower connection are mounted. Models of this type are very sensitive to the presence of air in the coolant. Reacting with it, aluminum begins to rapidly oxidize.

Basic installation rules

Place the batteries, including the bottom connection, correctly. Norms in this case should be observed as follows:

1. From the floor the radiator should be at a distance of not less than 10-12 cm. This will ensure unobstructed cleaning of the room, as well as the most effective heat exchange.

2. The distance from the battery to the window sill should not be less than 8-10 cm. Otherwise, it will be impossible to obtain the optimum heat flux.

3. From the wall, the radiator must be at least 2 cm apart. Otherwise, some of the heat from it will be spent on warming up the wall, not on the premises.

Embedding in the system

In the radiators "Kermi" and "Rifar" with a lower connection, the inlet and outlet openings are located on one side. The supply of hot water in this case is made in the extreme right section. The cooled water leaves through the second section. The nozzles of these radiators are located vertically - towards the floor. обычно находятся по обоим их краям внизу. In universal batteries, they are usually located at both of their edges below. горизонтально. In this case, the nozzles are arranged horizontally.

If the side of the universal heating radiator is made in a single-pipe system, a bypass is additionally required. -американки. On both sides of each battery at the same time installed cranes- Americans. They are mounted on horizontal branch pipes. When they overlap, water begins to flow through the bypass pipe. в случае необходимости заменить или отремонтировать батарею без отключения всей системы. This allows , if necessary, to replace or repair the battery without shutting down the entire system.

один из верхних выходов также монтируется кран Маевского. In the universal radiator, one of the upper exits also houses the Maevsky crane. The remaining opening is closed with a plug.

Batteries with a lower connection are simply crashed into the system with the help of strings. The bypass is not used. The lower connection of the radiators in the two-pipe system in this case involves, among other things, the use of a valve. The latter joins the drive. The same scheme is also used when inserting universal batteries into a two-pipe system. In the one-pipe system, as already mentioned, special radiators are used when using radiators with a lower connection.

At the final stage, in any case, the entire system is crimped. The air is discharged through the Maevsky crane. If leakage is detected, corrective work is carried out.