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Comparison Siemens KI 87SKF31 vs Siemens KI 86NKD31

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Siemens KI 87SKF31
Siemens KI 86NKD31
Siemens KI 87SKF31Siemens KI 86NKD31
from $559.20 up to $735.12
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from $696.00 up to $894.64
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Total capacity270 L255 L
Number of chambers22
Number of cooling circuits22
Number of compressors11
No FrostFreezer locationFreezer location
Features
Functions
holiday mode
display
door alarm
reversible door
holiday mode
display
door alarm
reversible door
Refrigeration chamber
Refrigerator capacity209 L188 L
Storage compartments
 
fresh zone
Fast cooling
Auto-defrost
LED lighting
Freezer chamber
Freezer locationbottombottom
Freezer capacity61 L67 L
Number of freezer drawers2
Big drawer
Slim shelf
Freezer temperature-24 °C
Autonomy time26 h13 h
Freeze capacity7 kg/day8 kg/day
Fast freeze
More specs
Controlstouch controlstouch controls
Energy classA++A++
Energy consumption per year225 kWh221 kWh
Climate classSN, N, ST, TSN, N, ST
Noise level36 dB39 dB
Dimensions (HxWxD)177x56x55 cm177x56x55 cm
Cut-out dimensions (HxWxD)1775х560х550 mm1772x560x560 mm
Added to E-Catalogjanuary 2015september 2014

Total capacity

The total volume of a refrigerator is the sum of the volumes of all its compartments, which can vary in specific capacity between different models. It's important to consider this when choosing a refrigerator.

A larger volume for a refrigerator can be beneficial for accommodating more food, but it can also increase the price and size of the appliance. This is especially important to consider if you plan to build the refrigerator into a specific space.

Refrigerator capacity

The refrigerating compartment is designed for storage of products that do not require freezing, i.e. cooling down to temperatures below zero. The temperature range inside varies from +2 to +10. In almost all modern refrigerators, it is this compartment that has the largest volume.

To ensure optimal performance and food quality, it's important to choose the appropriate volume for the refrigerating compartment based on your actual food storage needs and how often you replenish your supplies. Overfilling the compartment can have a negative impact on both the refrigerator's performance and the quality of the stored food.

For singles or couples, a refrigerating compartment of up to 200 liters is enough, while families or those who stock up on food should opt for models with up to 400 liters. Vertical refrigerators with separate freezer access are suitable for those who need moderate storage space, while side-by-side refrigerators with their typically larger volumes are a good option for those who require even more space and have ample free space.

Storage compartments

Apart from shelves, there are several additional compartments in a refrigerator, including a a freshness zone, a humidity zone, a multi-zone and a shelf for bottles.

— Freshness zone.It is a special compartment in a refrigerator designed for storing fresh products for an extended period. The temperature in this zone is slightly lower than the refrigerating chamber, typically around zero degrees, earning it the nickname "zero chamber". Such conditions help to preserve the freshness of products for up to 3-4 days. However, it's important to note that the temperature in the zero chamber may vary depending on the refrigerator model, ranging from 0 °C to +1...3 °C, which can impact the preservation of stored products.

— Humidity zone. Another specialized compartment, similar to the freshness zone, is designed to preserve the freshness of food items for an extended period. However, this compartment maintains high humidity at the same temperature as the rest of the refrigerator, which prevents the products from drying out. This feature is especially important for refrigerators with No Frost systems, which tend to blow moisture out of the refrigerator, leading to quicker drying of the contents.

— Multi-zone. This compartment in a refrigerator combines several functions of different compartments, such as the ability to w...ork as a refrigerator or a freezer, along with other specific features like quickly cooling drinks, slow defrosting, and cooling hot dishes. Modern refrigerators offer more extensive capabilities with specific features, making the multi-zone compartment a valuable addition. Some models have the entire freezer performing the function of a multi-zone chamber, but most models have a separate compartment for it. The presence of a multi-zone compartment significantly expands the capabilities of a refrigerator.

— Shelf for bottles. It is a hanging accessory, typically in the form of a lattice, that is installed under a shelf in the refrigerator. It allows bottles to be stored horizontally, which saves space in the refrigerator while keeping them organized.

Freezer capacity

The primary function of the freezer is to store food in a state of deep freeze, which helps preserve perishable products such as meat, vegetables, fruits, etc. for extended periods of time. The necessary volume of the freezer depends on the planned amount of food to be stored and the length of time it will be stored. A larger freezer is particularly useful if you plan to store food for several months. A compact freezer is relevant for short-term storage (for a day or two) or for seasonal devices (for example, in the village). It is best to ensure that the freezer is not overloaded and has enough space for proper circulation of air to maintain the desired temperature.

Number of freezer drawers

The quantity of freezer drawers in a refrigerator affects the optimal organization of frozen foods. A larger number of drawers allows for better separation of different types of frozen products. However, in the majority of standard two-compartment refrigerators, there are typically three freezer drawers.

Big drawer

One of the desirable features in a freezer are big drawers that can accommodate large items such as a whole turkey. However, what one manufacturer considers as a large drawer may differ from another manufacturer's definition. In some cases, a large drawer in one model may be equivalent in size to a standard drawer in another model.

Slim shelf

The slim shelf is a low (up to 5 cm) tray, which is the best suited for storing seasonings, rolled puff pastry, ice, butter, meat preparations and other small-sized products. In such a container, you can’t place products one on top of the other, so finding the right frozen item will be much easier.

Freezer temperature

The lowest temperature provided by a refrigerator freezer.

The lower the freezer temperature indicator, the more advanced the freezer is considered to be, and the better it is suited for long-term food storage with wider capabilities. It's important to note that the standard operating temperature for a fully functional freezer is -18 °C, which is suitable for both storing and freezing pre-frozen foods. Some refrigerators are designed with a temperature indicator of -24 °C, but this is mainly achieved through the quick freezing mode (see "Functions"), and the standard operating temperature is still -18 °C. However, if you plan to freeze food frequently and store it for extended periods, it's better to choose a model with a temperature of -24 °C and consider the freezing power as well.

Less expensive refrigerators have a less advanced freezer with a modest minimum temperature of -12°C or even -6°C, which is only suitable for storing pre-frozen foods, not for freezing fresh food. Although they are much more affordable.

To indicate the temperature of the freezer, markings in the form of asterisks (snowflakes) are often used, each of which means a decrease in temperature by 6 °C. For example, the mentioned -18 °C will correspond to 3 asterisks (***).

Autonomy time

Refrigerators with good thermal insulation can maintain low temperatures inside for a significant amount of time even if there is a power outage. This period of time is known as the "keep cold time," during which the refrigerator can preserve perishable food items. A longer keep cold time indicates better thermal insulation, making the refrigerator more suitable for areas where power outages are common.
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