Dimensions and advantages of flat heating radiators

Old-style flat heating radiators are in demand among buyers, due to the ratio of quality - price - technical characteristics, time-tested. The depth of the construction is taken as a key parameter, but its exact boundaries do not exist. Products are taken as a basis, the depth of which is 2 times less than Soviet cast-iron models.

Characteristics of flat radiators and their design

Steel products are included in the category of thin heating radiators. For their manufacture, metal sheets are taken through stamping. By means of welding, the iron blanks are connected into a suitable structure, which ensures the reliability and strength of the connection. To connect to the general system, nozzles are used. The movement of the coolant occurs through a special channel located between the two plates.

The design is:

• single-row and multi-row;
• with a smooth surface;
• with a profiled surface on one or two sides;
• flat;
• with or without ribs;
• with thermostat.

A shallow depth is typical for each stamped sheet, which is associated with other design features:

• Two panels, welded together, have high heat dissipation.
• A small internal cavity for the movement of the coolant. This is not only a plus, but also a minus. On the one hand, saving on the coolant saves the budget, on the other hand, it is necessary to constantly monitor the level of the supplied temperature.

The problem with fuel consumption is solved by adding convection fins, as a result of which the structure becomes called ribbed.

Dimensions (edit)

For the correct division of products into types, a special classification has been developed, by size.

• Type 10. This group includes products with a depth of 46 mm.
• Type 11. The thickness of these products is slightly increased, corresponding to 59 mm. This is due to the addition of convection fins to one side of the battery.
• Type 12. The thickness of such radiators is 64 mm, due to the arrangement of convection fins between two panels.
• Type 22. Product of two panels equipped with ribbing. The depth of the product reaches 102 mm.
• Type 33. The widest radiators, their thickness is 157 mm due to the arrangement of three plates with three parts of the fins.

The power depends on the type of product, height and length.

The smallest heat transfer is characteristic of products of type 10 and 11 with a height of 300 mm and a length of 400 mm. It is 265 watts. If we compare a radiator with the same parameters of the 21st class, the heat transfer will be 370 watts.

Basically, flat radiators are produced with a height from 300 mm to 600 mm, and a length of radiators from 400 mm to 3000 mm.

Advantages and disadvantages

Thin heating batteries owe their popularity and demand to the following characteristics:

• aesthetic appearance;
• compactness;
• ease of care and maintenance;
• low dust accumulation capacity;
• easy installation;
• light weight;
• no additional purchase of parts is required, the original equipment is complete;
• high heat transfer;
• energy saving.

Such products are not devoid of disadvantages:

• susceptibility to corrosion;
• vulnerability to water hammer;
• fragility and vulnerability to damage during transportation.

It is possible to increase the resistance of batteries to water hammer by installing a pressure reducer.

Features of flat type radiators

Among the characteristic qualities of flat batteries are:

• use of stamped steel sheet;
• the use of steel sheet with a certain level of recess for the base;
• the relationship between heat transfer and battery area;
• the possibility of increasing heat transfer due to a solid structure;
• saving coolant and energy.

If there is a need to increase heat transfer, the radiators are equipped with additional convection fins welded along the entire plane of the battery.

Varieties of flat radiators

According to the material of manufacture, thin batteries are:

• bimetallic;
• aluminum;
• steel;
• cast iron.

By structure, heating radiators are conventionally divided into:

• single-panel;
• two-panel;
• three-panel;
• three-ribbed.

Heat dissipation depends on the area of ​​the radiator. The larger the surface of the battery, the warmer it will be in the room.

For classification, the standard marking is used, which is applied to the package: Type 10, Type 11, Type 12, Type 22, Type 33. For the latter two types, the term "flat" is not applicable. All modifications of these radiators, with the exception of type 10 products, are equipped with a grille and side decorative panels. This increases the cost of the products.

Installation process

Flat modifications are installed only in closed heating systems, where the movement of the coolant is regulated by special pumps, and there is an expansion tank in the system itself.

Coolant movement technology:

1. By means of a pump, heat energy moves along the pipeline.
2. Passes through the valve.
3. It reaches the end consumer.
4. Moves along the airspace.
5. Then in the direction of the return pipe, until it reaches the expansion tank with the membrane.
6. Further, the process of movement is repeated.

When such samples are connected to an open heating system, their service life is significantly reduced. This is due to the corrosive processes affecting the radiators when oxygen enters the battery, which is formed due to the frequent draining of the fluid in the system.

In rooms with a high level of humidity, the installation of flat radiators is not recommended.

Radiator operating rules

The length of service life depends on several factors:

• The presence of a pump for circulation of liquid and an expansion tank. This will ensure the best permeability of the coolant throughout the system.
• Coolant drain frequency. You should not do this often, as the likelihood of oxygen entering the radiator increases, which will lead to corrosion.
• Use of conventional heat transfer fluid. Antifreeze fluids are not recommended for steel products. Due to their use, there is a decrease in heat transfer.
• Compliance with temperature values. There is a temperature limitation for flat radiators. Do not exceed the permissible value of 1000C.
• Compliance with working pressure. The recommended value is 4.5-10 MPa.
• Acidity of water. The recommended acidity should be 8.5 PH.

Observing the above recommendations, you can significantly extend the operational life of the products.

Choice of flat radiators

Before purchasing radiators, you must familiarize yourself with the technical data of the products, make accurate calculations taking into account the parameters of the building or room.

Here are a few guidelines to help you choose the right home equipment:

• Flat radiators are not used in heating systems with natural circulation of the coolant.A forced system is required to ensure sufficient heat dissipation.
• The maximum temperature that flat products can withstand should not exceed 100 degrees.
• Connection is possible on both the left and right side. Right-hand connection is used when installing single-panel models. Two-panel models have a universal connection type.
• Radiators with a bottom type of connection are an order of magnitude more expensive than products with a top type.
• Radiators in classic white color belong to the cheap segment, other options are more expensive.
• To select a radiator model, you need to know the thermal power of the product and its height. The lower the heating radiator, the more evenly the heat flows into the room and the denser the heat shield. Calculation of power is the task of the designer, who, in addition, must take into account the loss of heat through the enclosing structures.
• The battery width is calculated based on the size of the window block. Ideally, installed radiators should overlap the window by 50-75%. Narrow products will not be able to provide a sufficient heat curtain.

When choosing equipment, it is advisable to give preference to time-tested brands. This number includes Kermi, Zehnder and Buderus. The most affordable products are Buderus, the most expensive radiators belong to Zehnder.