Reading time: 7 minutes. Published 01/13/2017

During the cold season, we often face the problem of heat loss in houses and apartments. Without additional thermal insulation, the heating system simply cannot cope with the drafts that form at the entrance and balcony doors, windows and in the ventilation system. For example, up to 50% of the heat from an apartment can escape only through cracks in the window frames!

One of optimal solutions This problem is solved by installing high-quality plastic windows with double-glazed windows. And here many people have a question about which double-glazed window to choose: single-chamber or double-chamber? First, let's look at the characteristics of each of them, and then compare which type of double-glazed window is best suited for different conditions.

Characteristics of single-chamber double-glazed windows


Many people, seeing the name “single-chamber”, assume that such a double-glazed window is completely no different from a regular one. window frame with one glass. This is an erroneous statement. In all types of double-glazed windows, the chamber consists of two glasses separated aluminum frame and creating a hollow space between themselves. This space is usually filled with dried air and an absorbent that absorbs remaining moisture. But the number of cameras can reach three, so there will be four glasses in such a window.

So what is the difference between a single-chamber double-glazed window? Its advantages:

  • Due to its light weight, a window with a single-chamber double-glazed window does not create unnecessary load on the fastenings and the structure of the opening. Such windows do not fail longer;
  • Transmits up to 80% more light. At first glance, this difference is almost never noticeable, but visually a well-lit room appears larger;
  • Single-chamber double-glazed windows, the glass of which is coated with silver on one side, and the chamber is filled with argon instead of air, are energy-saving. Such windows retain heat no worse than double-chamber ones;
  • Lower price. Such a double-glazed window costs on average 15-20% less than a two-chamber one. This indicator is not so large, but often plays a decisive role when choosing a double-glazed window.

Single-chamber double-glazed windows also have disadvantages:

  • Low sound insulation. These double-glazed windows can reduce noise levels by only 32 dB;
  • They are also characterized by a low coefficient of heat transfer resistance. This means that condensation on the glass of a single-chamber double-glazed window will form at a temperature of about -8 degrees Celsius;
  • The heat transfer resistance of double-glazed windows with one chamber is lower by a third compared to double-chamber ones;

The thickness of the single-chamber package depends on the size of the spacer frame and varies from 1.8 to 3.6 centimeters. At the same time, the standard thickness used in most construction companies, is 2.4 centimeters.

The standard thickness of glass in a double-glazed window is 5 millimeters, but when using glass 6 millimeters thick, you can achieve the same thermal conductivity characteristics as double-glazed windows.

Read also: Sliding windows to the balcony - saving space!

Characteristics of double-glazed windows

Double-glazed windows, as the name implies, consist of two air chambers and three glasses, respectively.

Among the advantages of such windows are:

  • High degree of noise insulation (up to 35 dB). Moreover, there is a special design for such double-glazed windows that allows you to muffle street noise above 35 dB. This property is provided different widths distance frames in both cameras;
  • The heat transfer resistance coefficient of such double-glazed windows is much higher. Condensation on glass forms only at a temperature of -30 degrees Celsius, provided that the humidity in the room is up to 50%;
  • Improved thermal insulation. The principle “the more the better” applies here. Two air layers will ensure you not only the absence of extraneous noise in the apartment, but also the preservation of heat in winter.

Disadvantages of double-glazed windows:

  • The price is slightly higher than that of single-chamber ones;
  • Low light transmittance. The difference in lighting outdoors and indoors can be up to 6%;
  • Greater width and, accordingly, greater weight. As a result, an even greater load is placed on the supporting structures, and the wear and tear of such windows increases.

The thickness of double glazing is calculated using the formula 4 + 10 + 4 + 10 +4. From it it is clear that the standard glass thickness is 4 millimeters, and the thickness air gap– 1 centimeter.

The disadvantages of these double-glazed windows, associated with thickness and weight, are easily eliminated thanks to the use of high-quality fittings and high-strength reinforced window profiles.

Double-glazed windows can also differ from each other. As mentioned above, different thicknesses of glass and different distances between them provide high-quality sound insulation in the room. In addition, a combination method is used different types glass in such double-glazed windows to give them the properties of sun protection, shock resistance and energy saving.

Where is it better to install single-chamber double-glazed windows?

Often problems with heat loss and high level noise in the room is associated with the wrong choice of double-glazed windows. The desire to save a couple of thousand rubles on a cheaper option can play a cruel joke: you will have to overpay for the reinstallation of almost new windows.


Moreover, in many major cities state commissions prohibit the installation of single-chamber double-glazed windows, since according to SNiP the thermal characteristics of such windows are not suitable for middle zone and, even more so, for the northern regions. In what cases will the installation of a single-chamber double-glazed window be justified?

  • Glazing of balconies and loggias

If you do not plan to insulate this room and make it a residential part of the apartment, it is not advisable to overpay for heat-resistant double-glazed windows. Besides, lightweight design such windows will not harm the hanging balcony at all;

  • Installation of a balcony block

If your balcony is glazed, even with ordinary wooden frames, you will no longer need to install an interbalcony door and double-glazed window. The balcony space will serve as a second chamber, so that the room temperature will remain the same;

  • Glazing of a summer house

Although summer houses are built from wood, it is more profitable to install not wooden ones in its openings, but plastic windows. They are the same in price, but installing ready-made double-glazed windows is much more profitable and convenient. A single double-glazed window is sufficient to maintain a comfortable temperature in this recreation area;

  • Glazing of a terrace in a house

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The refrigerator is an integral part of the kitchen space. A situation often arises when there is no need to purchase a large-sized model or there is not enough space. In these cases, a mini-fridge can save the situation. A two-chamber small refrigerator can be chosen both in size and color. For example, for small kitchen in an apartment or in a country house, you should pay attention to models with a height of 145-160 cm, while for office premises, living rooms, and camp sites, you can choose options for mini-refrigerators with a height of 84 cm.

A small two-chamber refrigerator is ideal for medical institutions for storing medicines, small cafes, minibars and buffets, where the volume of products requiring refrigeration is small. If you need to install a second refrigerator in the apartment, then the models large sizes may also not be suitable.

Appearance modern mini-refrigerators allows you to solve any design problems. The color range is so varied that you can even choose a model to match the shade kitchen set. Main advantage two-chamber refrigerators the fact that, unlike single-chamber ones, ice does not freeze in the freezer, and the refrigeration compartment defrosts independently using an automatic drip system.

The most popular among small two-chamber refrigerators are models from Shivaki and Beko.. Let's look at their advantages and benefits using several examples.

Such models of two-chamber versions from Shivaki, such as SHRF-90DP, SHRF-91DW, SHRF-91DS, have similar parameters, but differ in color. They have a compact size, their height is only 84 cm. The freezer compartment is located on top with a volume of 28 liters, inside it has a dividing shelf that can be removed if desired.

The refrigerator compartment has 2 shelves, the location of which can be changed at your discretion, and a drawer for fruits and vegetables, and is also equipped with a drip defrosting system. These models are energy-saving, and during a power outage they can remain cold for about 7-8 hours, which indicates their good thermal insulation.

The big advantage is that they operate quite quietly, which is very important for a small space. The Beko company offers higher versions of small 2-chamber refrigerators, and the warranty period for them is up to 5 years, which once again confirms their reliability. So, for example, the model DS 32500 , with a height of 145 cm and a total volume of 230 liters, is compact, ergonomic and very roomy. The freezer is located on top and has a removable shelf. The refrigerator compartment has 4 shelves inside and drawer

. The advantages include the presence of an automatic defrosting system and antibacterial coating of all internal surfaces, which allows you to block unpleasant odors and keep food fresh for a longer period. If you are looking for refrigerators with a height of 160 cm, then you should pay attention to the quiet and reliable models of the company Beko DS 328000 And.DSMV528001S

    Their main advantages are that they:

    They have a freezer on top;

    Consume a small amount of electricity;

    Have a low noise level;

    They have high functionality and storage quality;

    Automatic drip defrosting system;

    Have an internal antibacterial coating;

    Small in size with a large usable volume;

    They are 2-chamber, which completely eliminates the presence of ice in the freezer;

They are sold at a low price, but are not inferior in quality to more expensive models. Fridge Beko CS 325000 has all the same positive qualities as the previous models of this company, but its main difference is that the freezer is located at the bottom, which is quite rare among small refrigerator options. Modern design

and reasonable price make it even more attractive. Another fairly popular small 2-chamber refrigerator Elenberg MRF 220 height 143 cm from top freezer has many positive reviews. But, unfortunately, the Eldorado company stopped selling household appliances this company, therefore this moment you can only find used versions of refrigerators

The pricing policy among mini-refrigerator models is completely different. Just because it is small in size does not mean it will be cheap. Many manufacturers, when adding any new feature, significantly increase the price. Therefore, when choosing, you should pay attention to the number of characteristics you need, and which ones you can refuse, this will save on your purchase.