Efficient exhaust system and ventilation in the kitchen is a necessary in every apartment and house. To maintain optimal air exchange, it is necessary to ensure a constant flow of air into the room so that the air is efficiently extracted through the kitchen hood into the ventilation duct. Thanks to the kitchen exhaust system, the process of removing odors, as well as excess moisture and fat, will take place.

Designing a kitchen ventilation system is an essential component because without a competent drawing and calculations, air exchange can be disturbed, and this will lead to discomfort in the room, and the ventilation in the kitchen will work inefficiently.

In this article, you can find out how to properly implement ventilation in the kitchen, whether it is worth doing it yourself, in general, why it needs to be implemented and what requirements must be met, as well as what types can be used indoors and what are their differences in installation.

Why you need ventilation in the kitchen

Ventilation in a city apartment in the kitchen is considered an indispensable element for creating an optimal indoor climate. The ventilation system in the kitchen is a construction design that includes a kitchen exhaust system and an air supply system. It is located above the stove and is designed to collect fumes and odors that appear during cooking, as well as to release them onto the roof.

To achieve efficient operation of the ventilation system in the kitchen, you need to trust the experts, as they will make high-quality design, observing all the standards and requirements necessary for your home.

Requirements for the kitchen ventilation system

For the optimal functioning of the kitchen ventilation system, it must be considered that the kitchen hood is designed to take in unwanted impurities that appear during the heat treatment of products. In order for the ventilation in the kitchen to work efficiently, the following rule must be observed: the amount of air that is taken from the kitchen must be equal to the amount of air that enters this room.

Many manufacturers who want to have a high demand, selling various models of kitchen hood, write the wrong amount of air intake (600, 800, 1000 cubic meters of air), which the device itself cannot physically intake

The reasons are as follows:

The air velocity in the duct can be calculated using the formula: V = L / (3600 * S) = 1000 / (3600 * 0.14 * 0.14) = 14.1 m/s – which is 4.7 times higher than the generally accepted indicator.

What is needed for air supply?

Today, many people have adapted to the use of kitchen ventilation, and to supply the required amount of air, simply open the window. As a result, the hood receives a supply of air and begins to work on the intake of odors, fumes, etc. particles. At the same time, it should be noted that the ventilation duct, which was built by the developer, physically cannot pass large volumes of air, for example, 1000 cubic meters of air.

Therefore, it is better to contact Alter Air specialists who will be able to make a high-quality calculation. It will show you the optimal duct size to allow some air to pass through, as well as prevent problems such as:

Natural and forced ventilation in the kitchen: what to choose

Natural ventilation cannot be used for the kitchen; only forced ventilation is installed there.

Forced ventilation is divided into several types, which differ in the use of various equipment:

The principle of operation of the Jablotron Futura L and Futura M systems is as follows:

The Jablotron ventilation unit when combined with a Faber kitchen hood, will provide a balance between fresh air supply and exhaust air intake. Thanks to the automation that allows you to combine the ventilation unit and the kitchen hood, the Faber hood will be able to reuse the heat generated during cooking thanks to a recuperator. The balanced operation of the Jablotron ventilation unit and the Faber kitchen hood can prevent the spread of odors throughout the apartment or house, as well as reduce the load on the heating system during the cold season.

This will provide the reduction in heating system costs for residents, and the Jablotron ventilation system will make your home as comfortable as possible, regardless of the time of year.

Preparation for installation of ventilation in the kitchen

To prepare for the installation of ventilation and kitchen hoods in the kitchen, it is necessary to make project documentation depending on the concept.

According to this, the design of the ventilation system includes the layout of air ducts, the location, and selection of equipment that will create an optimal microclimate in the premises.

Alter Air experts specialize in this service, so after consulting them, you will receive an individual project, high-quality installation and commissioning of the ventilation system. Based on this, the price of installing the kitchen hood is calculated, which depends on various components. 

Calculation of kitchen ventilation

The calculation of ventilation is based on the selected kitchen hood. 

Let us consider the example of the ventilation of a restaurant or cafe.

his place needs an efficient ventilation system, as people who come to the establishment want to spend time in comfort. To do this, it is necessary to create the optimal temperature, humidity in the room, as well as organize the supply and intake of a certain amount of air so that the hall always has clean air without various odors.

Restaurants are ventilated using special kW kitchen fans, which are designed for professional kitchens with an airflow rate of more than 2,000 cubic meters. The principle of operation of the ventilation system is as follows: air is supplied to the halls where customers are located, as well as the exhaust of this air is carried out through kitchen hoods using kW kitchen fans. 

In addition, for greater efficiency of the ventilation system, you can install Hoval recuperators that are designed to work with fat. Since stoves that are designed for restaurants use 20 kW of energy per hour, it is possible not to throw heat outdoors, but to utilize it through the recuperator and heat clean supply air.

If the kitchen hood above the cooking surface takes 2000 cubic meters of air, you need to provide the same amount of air supply.

The second option is the selection of the kitchen hood, which depends on the number of seats for the customers of the establishment, for whom the staff will work, using the ventilation device in the kitchen.

Ventilation for a country house involves considering the exhaust range for the frying surface, which is 400-500 cubic meters.

Duct selection

Air ducts are selected for airflow, in which the air velocity in the duct should not exceed 3 m/s.

A problem that can arise when redeveloping an apartment (when the kitchen changes places with the room) is that the ventilation duct remains in the same place where the planned kitchen was originally. Based on this, the ventilation duct is far from the cooking surface and when laying air ducts from the cooking surface to the ventilation duct, difficulties may arise, which are as follows:

Installation of ventilation in the kitchen

The kitchen is considered one of the most polluted areas in the apartment, so the designers initially provide for the possibility of installing ventilation for air exhaust.

High-quality installation of ventilation in the kitchen is indispensable, so it is better to leave the installation to specialists to prevent problems with the functioning of the ventilation system over time

Each house has a ventilation shaft, into which all odors, fumes from the kitchen are thrown, but it is necessary to create an airflow. Accordingly, an open window can be used as an inflow, a supply ventilation installation, but at the same time, the kitchen hood will not be able to remove all the exhaust air. That is why an effective way to extract air is to install additional ventilation with air supply, or to install a Futura L/Futura M with Faber kitchen hood from the same manufacturer, Jablotron.

Air vent

In apartments and houses it is strictly forbidden to throw air from the cooking surface into the street. The intake of exhaust air should be carried out only through the ventilation duct, which the developer initially makes in the kitchen.

For example, your downstairs neighbor punches an additional hole for ventilation because he wants to get more fresh air and not throw out fumes and odors through the ventilation duct. All spent odors will go up from the window, as a result of which, the rest of the tenants will feel discomfort because when the window is open, odors will enter your home.

Kitchen hood installation

Many customers cannot decide which kitchen hood placement would be best suited for installation in an apartment or house, so our experts will provide you with options that are ideal for your design, considering the required power, kitchen area and finances of our clients.

The installation of a kitchen hood depends on the performance, it can be: mounted or built into the kitchen.

Duct laying

In most cases, in the kitchen ventilation scheme, air ducts are laid in the false ceiling area of in order to avoid violating the design.

For efficient operation of the ventilation system, it is necessary to install a kitchen hood as close as possible to the air vent. The quality of the functioning of the system depends on the length of the air ducts, since the longer they are, the more noise the ventilation system makes, since it has many bends.

Installation of an air supply valve

The air supply valve is the solution for getting air in order for the ventilation in the kitchen to function, since the device can cause the rarefaction of air. At the same time, it should be noted that the supply valve cannot supply more than 60 cubic meters of air, and kitchen hoods for the home are designed to take 500 cubic meters of air, or even more. Therefore, installing only one valve is an irrational solution, since one valve will not be enough for the optimal operation of the ventilation system.

The supply valve is installed under the ceiling, where the maximum amount of accumulation of thermal energy is formed. Such installation is carried out to provide already warm air when transporting it from top to bottom.

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