Choosing a new refrigerator is always a complex process that requires a balanced approach and analysis of many technical characteristics. In 2022, the home appliance market has undergone significant changes, shifting the focus from simply cooling food to intelligently controlling the climate inside the chambers and preserving freshness. The buyer today is faced not just with the need to buy a “box with a motor”, but with the choice of a complex electronic device that will work around the clock for many years.
Modern models are radically different from their predecessors ten years ago. If previously the main criterion was the reliability of a Soviet unit or low price, now technology, ventilation systems and the quality of materials of internal shelves come to the fore. The wrong choice can lead to rapid spoilage of food, increased energy consumption or constant noise that will irritate household members. inverter control, ventilation systems and quality of materials of internal shelves. The wrong choice can lead to rapid spoilage of food, increased energy consumption, or constant noise that will irritate household members.
In this article we will analyze in detail what parameters you should pay close attention to when purchasing in the current conditions. We will look at the differences between defrosting systems, types of compressors and features of the interior layout so that you can make the final decision without unnecessary headaches.
Determining the type of defrosting system
The first thing a buyer encounters in a store is the abbreviations on the price tags. The most common and popular system today is No Frost. The principle of its operation is the forced circulation of air, which passes through the evaporator, is cooled and distributed throughout the chamber. This completely eliminates the formation of ice on the walls and products, relieving the user of the need for regular manual defrosting.
However, there are important nuances within the No Frost category. There is a system Full No Frostthat is used in both freezers and refrigerators. At the same time, there is a combined option: in the freezer there is No Frost, and in the refrigerator compartment there is a drip system (crying evaporator). In the latter case, moisture condenses on the back wall, freezes, and then flows into the drain when the compressor is turned off.
Many users are still wary of the No Frost system because of the myth about “drying out” food. Indeed, a powerful air flow can dry out uncovered food, but modern models solve this problem with the help of special freshness zones and sealed containers.
- ❄️ No Frost —complete absence of ice, does not require defrosting, uniform temperature.
- 💧 Drip system —works quieter, retains natural humidity, but requires defrosting 1-2 times a year.
- 🔄 Combined is the golden mean, where the freezer does not require maintenance, and in the refrigerator compartment the products “breathe.”
⚠️ Attention: When choosing a model with Full No Frost, be sure to check for the presence of a multi-flow system. If the air blows from only one point at the top, the products on the bottom shelf may be cooled unevenly.
Compressors: classics versus inverters
The heart of any refrigerator is the compressor. Traditional linear compressors work on the principle of “turned on - cooled - turned off”. This is a time-tested technology that is maintainable and relatively low cost. However, such units create peak loads on the network and make a characteristic click when starting up.
In 2022, inverter compressorsbecome the de facto standard. They do not turn off completely, but only reduce the speed to a minimum to maintain the set temperature. This ensures significantly quieter operation and precise temperature control without surges. In addition, inverters consume less electricity, which, given the constant increase in tariffs, is a compelling argument.
It is worth noting that some manufacturers, such as LG, use linear inverter compressors, which combine the reliability of a linear design and the cost-effectiveness of inverter control. The service life of such units often exceeds 10 years, which is confirmed by extended warranties from brands.
When purchasing, pay attention to the number of compressors. Two-compressor models (separate motor for the refrigerator and freezer compartments) allow you to turn off one of the zones independently of the other, which is convenient during prolonged absence or defrosting.
Dimensions and ergonomics of the internal space
Before going to the store, you must carefully measure the installation location. The width of a standard refrigerator is usually 60 cm, but there are narrow models (55 cm) and wide ones (70 cm or more). It is important to leave a gap of 5-10 cm from the walls for normal ventilation of the condenser, otherwise energy efficiency it will fall and the motor will wear out.
The internal layout plays no less a role than the external dimensions. Pay attention to the system Multi Air Flow or its analogues, which allow you to adjust the position of the shelves in height. This is critical for placing large items, such as three-liter jars or a tall pot of soup.
Pay special attention to door shelves. In modern models, they are often equipped with limiters that prevent bottles from falling when the door is suddenly slammed. Also a useful feature is the ability to rearrange the door shelves to different levels.
☑️ Check the dimensions before purchasing
Energy efficiency and climate class
The refrigerator is one of the few appliances in the house that works 24 hours a day, 365 days a year. Therefore, the energy class directly affects your budget. In 2022, markings A+, A++ and A+++are relevant. Models of class “G” or “F” (according to the new EU scale) will consume significantly more electricity, even if their initial price is lower.
The second important parameter is the climate class, which indicates the ambient temperature at which the refrigerator can operate effectively. For most apartments in the temperate zone, a class N (Normal)is suitable, designed for the range from +16 to +32 °C. If you plan to install the refrigerator in an unheated room, in a country house or in a hot kitchen, it is worth considering classes SN (subnormal) or T (tropical).
| Class | Temperature range | Recommended location |
|---|---|---|
| SN (Subnormal) | +10°C ... +32°C | Utility rooms, cold corridors |
| N (Normal) | +16°C ... +32°C | Apartments, heated houses |
| ST (Subtropical) | +18°C ... +38°C | Hot kitchens, southern regions |
| T (Tropical) | +18°C ... +43°C | Very hot climate |
⚠️ Attention: Operating the refrigerator at temperatures below minimum for its climate class will lead to solidification of the oil in the compressor and failure of the equipment. Do not turn on the refrigerator on the balcony in winter without special preparation.
Additional functions and freshness zones
A modern refrigerator is a high-tech device. One of the most useful features is the presence freshness zones (Zero Zone, Fresh Box). This compartment maintains a temperature of about 0°C and high humidity, which allows you to store meat, fish and dairy products 2-3 times longer without freezing.
It is also worth mentioning the function Super Freeze (super freezing), which allows you to quickly freeze a large amount of food without defrosting it lying stocks. This activates the compressor at maximum power for a certain time. A similar function Super Cool helps to quickly cool products just brought from the store.
In the premium segment there are models with Wi-Fi modules that allow you to control the temperature from a smartphone or receive notifications about an open door. However, for the basic model, the quality of the door seals and the antibacterial coating of the internal walls are more important, which prevents the growth of mold and unpleasant odors.
Why do you need a zero temperature zone?
The freshness zone creates ideal conditions for storing products that do not like freezing, but quickly spoil in the heat. The temperature here is strictly 0°C, and the humidity is regulated by dampers. The meat remains red and fresh for up to 3 days, and the greens do not wither for a week.
Noise and level of comfort
If your kitchen is combined with a living room or bedroom, the noise level becomes a critical parameter. Modern refrigerators operate very quietly, and a noise of 36-38 dB is practically inaudible to the human ear against the background of household sounds. Models with noise levels above 42 dB may create discomfort at night.
It is important to distinguish between the operating noise of the compressor and the sounds of gurgling refrigerant. Gurgling is a normal physical process of freon circulating through the pipes, especially in models with the No Frost system. However, loud clicks, humming or vibration of the housing indicate incorrect installation (the legs are not adjusted) or a defect.
When choosing, pay attention to the presence of anti-vibration pads on the compressor and the thickness of the insulating materials of the housing. High-quality noise insulation is a sign of good assembly.
Frequently asked questions (FAQ)
Do I need to let the refrigerator sit before turning it on after delivery?
Yes, this is a mandatory requirement. If the refrigerator was transported lying down or simply tilted strongly, oil from the compressor could get into the refrigerant circuit. It is necessary to let the equipment stand upright for at least 2-4 hours (or better yet, a day) before turning it on for the first time, so that the oil flows back into the compressor.
Is it true that a refrigerator next to a battery works worse?
Absolute truth. The condenser (grid at the back or on the sides) must release heat to the environment. If there is a heat source nearby (battery, stove, direct sunlight), the efficiency of heat transfer drops, the compressor works without interruption, trying to gain temperature, which leads to excessive consumption of electricity and breakdown.
How often do you need to defrost a refrigerator with a No Frost system?
Technically, the No Frost system does not require defrosting to remove ice. However, it is recommended to carry out hygienic washing with disconnection from the network 1-2 times a year. This is necessary to remove bacteria, odors and check the drainage hole, which may become clogged with crumbs.
Can a regular refrigerator be built into a kitchen set?
No, it is not. Built-in and free-standing refrigerators have different ventilation systems. For built-in models, heat is dissipated through the front part (base), and for conventional models, through the rear grille. If you put an ordinary refrigerator in a niche, it will overheat and burn out.