What kind of hoods to choose?

When repairing the kitchen, people often wonder what kind of hood to choose? They are classified as follows:

1. "Flat" - suspended hoods, mounted underpendant cabinet for kitchen accessories or, if it is not, above the stove. A number of manufacturers in the extracts have grease filters. In such extracts, usually from acrylic tissue, they are disposable. Suspension hoods have low-power motors and operate in recirculation mode. For this mode of operation you will need carbon filters. They retain small particles and neutralize the smells well. This class of hoods is the cheapest.
2. Built-in hoods are installed in a suspendedcabinet above the stove, often have a sliding panel. The panel will increase the suction area of ​​the combustion products, while facilitating the control of the device. When the device panel is extended, the hood turns on in the mode in which it was turned off. This is a truly compact design, advanced in a technical sense, when compared with "flat" hoods. Built-in hoods are usually equipped with one motor, there are models and with two motors. This increases the productivity. In addition, multi-layer aluminum filters are installed in the built-in hoods.
3. Dome hoods are installed on a wall orto the ceiling above the stove. They have a fireplace shape, yet it can be domed. This class is divided into several types: all-metal, metal with glass, possibly with a wooden frame. Dome hoods have a variety of designs, in addition they can have several shapes, sizes, and colors.

In general, in the question of what type of hood is better to choose, the type of hood often affects the final solution.

How to calculate performance

In everyday life, "productivity" is called"Power", but these concepts are still worth distinguishing. The performance gives information on how much air you can extract from your hood per hour. Remember, according to sanitary standards, air in one hour should vary in a typical kitchen not less than 10, and even 12 times.

S (kitchen area in square meters) is necessarymultiply by H (the height of the ceiling) and multiply by 12. 12 is the norm of SES (air exchange for one hour). Then multiply by 1.3 (this will be the minimum stock factor of 30%).

The minimum stock ratio is required foraccounting for the number of storeys of the building, the level of contamination of the ventilation shaft, as well as its dimensions. Dimensions that include bends and the total distance of the air duct from the hood to the ventilation.

Mathematically, the area is calculated as followsway: let's imagine that the area of ​​your kitchen is 10 square meters, and the ceiling height is 3 meters. Then 10 square meters. X 3 X 12 X 1.3 = 468 m3 / h.

468 cubic meters./ hour - this is the perfect result that your hood should show in terms of performance. But it is better to choose a hood of even higher power, and to use its sparing regimes. This seriously reduces the noise level and extends the life of the device itself.

Filters for extraction

Hoods are usually completed with the following types of filters:

• Grease filters. These filters are able to purify the air of most suspended particles. Among them, fat or gas combustion products. These They can be disposable, made of synthetics, reusable of foil, made of aluminum or mesh. Most of the hoods are equipped with aluminum grease filters. Fat filters from aluminum have several layers, each of which consists of a perforated material. The holes in the aluminum sheets are made in such a way as to create conditions for the best air passability and at the same time with a minimum of noise. These filters operate throughout the life of the device and must be cleaned regularly in a warm water solution with a mild detergent or a dishwasher can be used. When you wash the filters in the machine, do not forget to place the filters in an upright position. This will not allow solid food residues to clog the filter holes.
• Carbon fine filter, beingone-time, detains small particles and, although slightly, but neutralizes the smell. Such filters need to be bought separately. When using carbon filters, the frequency of filter replacement is always dependent on how often you use the hood. Hood manufacturers usually recommend changing carbon filters every four months. Only taking into account all important parameters and conditions will help to answer the question of how to choose the right hood.

Noise level

Another, quite important parameter is the "levelnoise ". The permissible noise level of good quality hood at the highest speed is 62 dB. Note that this mode is extreme. It is used in the most extreme cases, such as burning food in the oven. The operating modes of the device are the first and second speed. In an extreme case, answering the question of how to choose a built-in hood will help consultants store household appliances.