Comparison Whirlpool BSNF 9152 W white vs Whirlpool BSNF 9151 OX stainless steel

The refrigeration circuit can be described as a heat sink system that has a separate connection to the compressor (see “Number of compressors”) and a separate, independent from other similar systems, regulation of the operating mode.

In the most common variety of modern refrigerators — two-chamber models with a freezer — both one common circuit for both chambers and 2 circuits can be provided. The second option is more expensive, but it gives an important advantage — in such refrigerators, you can completely independently control the operating modes of the refrigeration and freezer compartments. If there is only one circuit, these adjustments turn out to be interconnected: for example, when you turn on the fast freeze mode (see "Features"), the main chamber also starts to work at increased cooling power, which is not always desirable.

As for refrigerators with three or more chambers, usually, the number of circuits in them is less than the number of chambers — otherwise, the design would be unnecessarily complex, cumbersome and expensive.

Separate zones that help expand your food storage options. Among these there are multizone — , fresh zone, humidity zone, low temperature zone, wine chamber, bottle rack. More details about them:

— Fresh zone. A special compartment designed for long-term storage of fresh vegetables, herbs and other similar food. Such a compartment can be made in the form of a completely separate chamber. In such cases, it is called the zero chamber and its volume is separately indicated in the specifications. However, more often the fresh zone is located inside the main compartment. Anyway, the humidity in this zone is somewhat higher than in the refrigeration compartment, and the temperature is somewhat lower: in some models, it is about zero (which allows you to store raw meat or fish), in others it is about +1 .. .3 °C (this is only suitable for fruits, vegetables and cheeses). Anyway, the moisture from the products in the fresh zone does not evaporate as quickly as in the main chamber, and the contents retain their original appearance and taste longer. This feature is especially useful if there is a No Frost system (see above) in the refrigeration chamber of the unit.

— Humidity zone. Another feature designed for long-term storage of fresh food is similar to the fres...h zone described above. The difference is that freshness is preserved solely due to the increased humidity of the air (hence the name). The temperature corresponds to the temperature in the refrigeration chamber. The humidity zone is intended mainly for storing vegetables and fruits; in some refrigerators, this compartment has a humidity control that allows you to optimally adjust it to different types of contents (detailed recommendations on this can be found in special sources)

— Low temperature zone. A compartment in which a lower temperature is maintained than in the main chamber of the refrigerator. Typically, fresh meat or fish are supposed to be stored in the low-temperature compartment. The presence of such a compartment allows you to more effectively organize long-term storage of food in the refrigerator and keep it fresh longer.

— Multizone. A compartment that combines the functions of several compartments at once. The simplest option is the ability to work in the mode of a refrigerator or freezer. However, in modern refrigerators, there are multizones with more extensive capabilities. These features can be quite specific — like quickly cooling drinks, slow defrosting, and even cooling hot dishes. So the specific features of the multizone should be specified separately. Nevertheless, its presence significantly expands the capabilities of the refrigerator. Also, in some models, the entire freezer performs the function of such a chamber. However, most often the multizone is still designed separately from other chambers.

— Wine chamber. Specialized compartment for long-term storage of wine. Usually, a temperature of +10..12 °С is maintained in such a compartment — it is this temperature considered optimal for this task. Some models may also provide the possibility of more precise temperature settings — for different types of wine. The traditional equipment of a wine chamber includes a shock-absorbing system that dampens vibrations from the compressor and other shocks, as well as carbon filters to protect against foreign odours; and the door of such a chamber is traditionally made transparent — so that you can see the collection of wines without opening the refrigerator.
Nowadays, this function is found only in some premium refrigerators. It is because most wine connoisseurs prefer to use specialized wine coolers: such devices are less bulky and often more functional.
— Bottle rack. Shelf of a special design for the convenience of storing bottles in the refrigerator. It has the form of stands of a wavy shape. In the recesses of such "waves" it is convenient to keep bottles of small or medium size: they do not roll over the refrigerator and are at hand; you just need to open the door.

A device for neutralizing foreign odours in the refrigerator compartment. The source of such odours can be not only spoiled but also quite usable products, for example, smoked fish. And some types of food, in turn, tend to absorb these odours, which negatively affects their aroma and taste. The deodorizer avoids such troubles by purifying the air inside the refrigerator.

The autonomy time provided by the refrigerator when the power is turned off.

Often, this parameter describes the capabilities of the freezer. In such cases, the autonomy time is indicated as the time during which, at an outside temperature of +25 °C, the temperature in the filled freezer does not rise above -9 °C (this level is considered critical for the storage of frozen foods). Accordingly, the actual autonomy time may differ from the claimed one — depending on the ambient temperature, the frequency of opening the refrigerator, etc. However, this parameter describes the quality of thermal insulation quite accurately, and it is possible to evaluate different models and compare them with each other.

Also, autonomy time can be given for models without freezers: in such cases, we are talking about the time during which the temperature in the refrigerator compartment remains at an acceptable level under approximately the same conditions.

Approximate amount of fresh food that a refrigerator can completely freeze from room temperature to freezer operating temperature in 24 hours. Power up to 10 – 15 kg/day will be quite enough for everyday use, but if you plan to freeze food in large volumes and often — you should pay attention to more performant freezers.

Refrigerator energy class according to the old European standard valid until 2021.

The energy class shows how economical the unit is compared to other models with similar specifications. It is used for devices manufactured before March 1, 2021. Initially, in this standard, classes were designated in Latin letters from A (most economical) to G (high power consumption). However, later improved classes A+, A++, and others appeared. (the more pluses, the more effective is the device). For modern refrigerators, marking A according to the old system is actually the minimum level of energy efficiency specific for outdated and low-cost devices; most models are classified as A + and A ++, and most A+++. There is no need to wait for more pluses. Since 2021, all new equipment will be marked according to the new system, where class G will correspond to the old class A, class F to class A+ and so on.

Note that a higher energy efficiency class (with similar specifications) means a higher price but this difference can quickly pay off due to energy savings.

The average amount of energy consumed by a refrigerator in a year of operation. Of course, these figures are not absolutely accurate; the actual power consumption may vary depending on the specific operating conditions. However, this parameter makes it possible to evaluate the power consumption of the refrigerator and compare different models with each other. At the same time, it often turns out to be more convenient and visual than the energy consumption class (see above) because in this paragraph we are talking about a specific figure (from which you can also calculate the cost of electricity consumed). For clarity, let's take the following example: a small two-chamber refrigerator with energy class A can consume less energy per year than a large side-by-side unit of class A+++, although formally, in terms of energy consumption classes, the second model will be more economical than the first.