In modern kitchens and houses, it is not always possible to install an extractor hood in the kitchen by connecting it to the general household ventilation. There are many reasons for this, for example, with a weak ventilation system or a low height of the walls of the room, which does not allow pipes to pass through. Sometimes the owners do not want to clutter up the kitchen space with ventilation pipes. After all, then the general ventilation hole in the apartment disappears, which allows air to circulate throughout the room. In addition, the pipe leading to the ventilation does not look very aesthetically pleasing on the kitchen wall.
Exhaust devices that do not have a branch to the ventilation ducts can help in this case.
Principle of operation
Everything is also elementary. Any exhaust system that does not have an outlet to the ventilation system functions by recirculation. In this device, dirty air enters the interior, where the filtration system cleans it and brings it back to the room. This is how any hood works without exhausting into ventilation, in a closed cycle.
Such exhaust structures have many advantages:
- space is saved;
- heat is not emitted from the apartment, which allows to reduce energy consumption for space heating;
- affordable price;
- ease of installation.
Types of filtration systems
Since the exhaust device without an air duct has in its structure a whole system of filters, this type of it is called filtration.
Most modern exhaust systems have a staggered filter configuration. Here, the air is first sent to the compartment, where it is cleaned of soot and fatty components. Then it is drawn into the second compartment, where other filtration structures release the air from unpleasant "odors" and other impurities. The purified air then returns to the room.
Exhaust structures with acrylic filters are considered the simplest in configuration and the cheapest in cost. They are intended for one-time use. After depletion, such a filter must be replaced.
In addition, exhaust devices with cleaning systems of this level are also reusable. This type of device includes those that contain metal filter systems in their structure. Metal filter devices are very effective and last longer than acrylic counterparts. Metal systems can be cleaned simply by rinsing them with water mixed with some kind of detergent or cleaning agent. Sometimes they are dipped and washed in the dishwasher.
Filtration devices of the second level are still produced by coal. They work great at cleaning the air. This is possible due to the absorbent properties of coal, which absorbs all the excess from the air. The disadvantage of these cleaning filters is the fact that they are not reusable. They last a maximum of 5 months, although there are some that can last longer. After all, the duration of their work depends on how much they cook on the stove and whether they smoke there.
Hoods by type of installation
All hoods with filtration systems work according to the same principle, although they are still divided into several subspecies.By the type of installation, the hoods are divided into:
- flat;
- built-in;
- suspended;
- inclined.
A flat type fixture is a panel that is fixed above the surface of the slab perpendicular to the wall. This is the classic version and the simplest. The disadvantage is the rather weak motor. This type of exhaust device is best suited for small kitchens where long-term operation of the appliance is not required. These hoods include Minola HPL 511 I, Liberton LHW 53-1 IX, FREGGIA CHX15X and others.
Built-in fixtures are mounted inside furniture cabinets and hung above the stove. These types of exhaust structures are usually compact and unobtrusive. They can only be seen by looking at the bottom of the cabinet suspended above the stove. These hoods have a more powerful motor. Here is an example of a built-in hood design like the Cata TF-2003 inox.
The suspended type of devices without an air duct differs from built-in ones in that such structures are not mounted inside the furniture, but are located directly under it. This saves space in the kitchen and rational placement of kitchen furniture. Their difference lies in the fact that the working part of the surface of the hood can be increased by the push-out method. An example of such a device is the KRONA MILA 500 white / gold 3P. In the photo, just such a hood is shown.
Tilting devices are the most advanced now. They, however, are rarely found in this particular version. They are rarely produced with filters. Such devices are hung at an acute angle to the walls. Silent operation is their advantage. That is why hoods for the kitchen without venting are becoming more and more popular. This is how the inclined hood looks beautiful in the interior.
Classification by type of installation
Install ventilation devices in different ways.
Wall-mounted models are fixed on the wall.
Island hoods are installed as a separate module above the surface of the slab. They are more suitable for large kitchen areas. Or even in cafes, restaurants and other premises. And in apartments, island hoods are very rarely installed. But such a hood has advantages in large houses in that it can be installed along with the stove anywhere in the kitchen.
Corner hoods are more suitable for small kitchens as they are more often reinforced at wall joints and in corners to save space in the kitchen. The model and design are selected so that everything looks like a single ensemble.
Additional functions
Hoods often have auxiliary capabilities. Most often they are installed:
- backlight;
- automation so that the device turns on itself as soon as the oven turns on;
- timer, so as not to wait for the complete purification of the air;
- remote control.
In modern hoods, sensors, weather displays, sensors indicating the parameters of the hood operation, etc. are often installed. Some hoods are equipped with electronic "reminders" for housewives.
How to choose the right one
First of all, you need to consider how much power is needed. To do this, you need to determine the volume of air in the kitchen by multiplying the height, length and width. The result is multiplied by 12. This is an indicator of the required performance.
In terms of dimensions, the exhaust device should not be smaller than the surface of the plate. Well, you need to take into account the noise produced.
So the choice of the hood depends on the tastes and funds of the homeowners where the hood is planned to be installed.
