Kitchen ventilation system: requirements, characteristics, development rules

The design of ventilation and exhaust systems for kitchens, in fact, very simple. There are many nuances, ignoring that, we have all the chances to create irregular and insufficient ventilation. Ventilation, which, instead of purifying air, will, literally, poison our lives.

Natural ventilation of the kitchen and the law of conservation of the volume of air

Long gone are the days when the residents of private houses and city apartments suit the natural ventilation system in the kitchen. Despite the relatively low efficiency of these systems (especially in moments of cooking), the principles of their arrangement will be relevant always. The fact that the continuous operation of natural ventilation is possible only under certain conditions. Namely, the ventilation ducts must ensure unimpeded discharge of air from the room and the kitchen fresh air must be carried out continuously.

Efficient operation of the ventilation system is only possible when the volume of air leaving the room, will be equal to the volume of air entering the kitchen.

What to put to air flow in the kitchen

Ensure compliance with the first condition can be timely cleaning and maintenance of ventilation ducts. The second condition, a simple supply valve to the kitchen as a part of the ventilation system.

Protein (FORUMHOUSE User)

You can always hit a wall air inlet, which will enhance natural ventilation.

Just a few decades ago, most dwellings were equipped with wooden windows. Their integrity, as we know, leaves much to be desired. Therefore, the issue of forced ventilation did not get up: fresh air in an apartment or house came with virtually no human intervention. Today, when we are dealing with sealed double-glazed windows and powerful extractor hood, the inflow valve ventilation built into the design of the plastic window or mounted on the wall is not a whim, and necessity.

The simplest supply and exhaust ventilation system with their own hands

If your house or apartment has a natural ventilation system with exhaust vents in the kitchen, the odor of pies in the bedroom you hardly threatened. If your home is being constructed, then take care of the presence of such a system - it's time. When functioning normally, it will continually update the air in the kitchen room, and it is always possible to improve the lack of effectiveness, equipping a small exhaust fan.

If you live in a private house, the roof fans installed in the ventilation duct, will help to modernize the structure of the system without creating noise during operation.

Andrey Vasilyev (User FORUMHOUSE)

If a private home, the problem is easily solved - the installation of roof fans. Put, and let the noise on the street itself.

If you live in an apartment, the fan on the air vent, qualitatively improve the fresh air intake process in the room.

Hel (User FORUMHOUSE):

When I turn an ordinary fan built into the vent in the kitchen, even with the door open the smell goes into the ventilation.

A good solution would be to channel fan, can significantly enhance the exhaust flow rate.

By putting these devices, you will be able to turn their hands natural ventilation in a simple supply and exhaust system.

Guidelines for creating air ducts

natural ventilation system in which no auxiliary fans, at any time, can play a cruel joke on you. It is about the physical phenomenon as "overturning thrust." It occurs when under the influence of external factors exhaust flow expires or even changes its direction (outside air begins to flow into the room through the ventilation shaft). Therefore, it is advisable to bring a vent on the roof, and its height should exceed the height of the ridge. This requirement is true for natural ventilation, and the system "forced ventilation" in the kitchen.

Matilda (Member FORUMHOUSE):

Overturning traction often happens in the offseason, when the street is wet and dank. If the vent pipe set below the ridge, the rollover will be a permanent feature and will depend on wind direction.

Pipe and duct, which will pass through a cold place (attic and exterior space of the building), it should be warm.

A vent routed to the outside through an ordinary horizontal hole in the wall, due to lack of pressure difference inside and outside of the building will perform its function only when the fan.

Ventilation in the kitchen with extractor fan

We reviewed the features of systems that operate continuously and are designed to provide effective ventilation in the room the kitchen. Now let's talk about kitchen hoods - devices that are included in the work in the most "hot" hours, forced to help us get rid of the smell of food being prepared on the stove.

Extractor hood, unlike standard ventilation system helps to capture smoke, steam and grease particles entering the air during cooking. Therefore, the requirement hood installation in addition to the existing ventilation system is justified.

Arsenal & Natalya (User FORUMHOUSE):

Extractor fan needed if the kitchen does not want to make repairs often. There are no miracles, and no forced removal of evaporation products out they are deposited on the walls, on the ceiling, furniture and others.

Extractor fan in the kitchen need, let's think about what to do hood.

According to the principle of the extract divided into two types - flow and recirculation. The flow discharged air from indoors to outdoors, while recirculation - filtered impurities and supplying the air back into the room.

It's obvious that people are recirculating exhaust devices of our portal is not popular. And there are several reasons: the need for frequent filter replacement, inefficiency and inability to take excess heat from the room.

Andrey Vasilyev (User FORUMHOUSE):

Sense from a small drawing (my house is worth only because they are too lazy to pull the pipe to the channel). Fat accumulates on the walls quickly and very difficult to wash off (especially if the Wooden House). If puzzled plant extract, which is very useful (especially if you like fried fish, meat and other grill), the need to bring in ventkanal (just outside the wall is not recommended, because the wall is stained with time).

Taking into account all the shortcomings of recirculation systems, they should be used only in exceptional and special cases.

Flow hood displays side impurities formed during the cooking of the premises. According to a method of installing flow hoods are suspended, recessed, corner, dome and island. No matter what type of installation provides hood, the air outlet of the room should be arranged on the same principle. It lies in the fact that the current range hood should be connected only to the isolation of the ventilation duct.

Matilda (User FORUMHOUSE):

Connect the hood to a common ventilation duct, and even more so, to the chimney - it is forbidden! Carbon monoxide and waste air can then fall back into the room.

Hood from the kitchen gas stove and never with anything you can not connect. And air from the stove to go straight up.

In houses with old types of ventilation systems insulated conduit for connecting the hood is missing. And since the hood output in total ventilation shaft can not be additional ventilation duct must be done separately. Appropriate but ineffective solution in this case would be the purchase of a recirculation system.

If you are not afraid to spoil the facade of his house (apartment) spots of grease, soot and steam, then drawing in the wall can be done separate horizontal channel. Exhaust hole will be located directly on the outer surface of the wall. Such a ventilation device in the kitchen is desirable to equip home-return valve (if its presence is not provided in the design drawing itself) or inertial lattice.

shmendel (User FORUMHOUSE):

Motorized valve - that's good, but extracts have check valves. It remains only to ensure that no air is blowing directly into the duct.

Run a "reduction of ventilation in the wall in the kitchen"
help inertial grids or baffles.

Ideally, the air duct for drawing must be created on the same principles by which other vents are created. Namely, in order to provide natural draft duct when the hood is off, it should be displayed on the roof of the house (just above the ridge).

Particular attention should be paid to the air duct insulation in the attic and on the street, which will prevent the formation of condensation.

Matilda (User FORUMHOUSE):

Ducts that will pave the attic, cotton wrap.

About ventilation outlets: it is advisable to purchase ready-made products which are in accordance with the existing standards are warmed at the manufacturing stage.

Terms of kitchen ventilation. Duct material.

Material duct used to connect the kitchen hood must meet the following conditions:

• Create minimum resistance to the air flow;
• Have high corrosion resistance;
• Have a sufficient area of ​​the inner section.

Taking into account the first condition, the flexible corrugated pipe, whose walls have enough high resistance, it is recommended to use exclusively for connection with the ventilation hoods channel.

The corrugations, in the presence of such a possibility, it is preferable to replace smooth galvanized pipe of circular or square section.

To rust destroyed duct, many people seek to introduce in his construction of plastic pipes with a thick section. But this material tends to accumulate fat, but safety of such pipes can not be called. Their use can lead to fire (one has only to oil ignited on the hot skillet with cooker hood is operating). It is for this reason that the use of sewer pipes should be avoided in advance.

Matilda (User FORUMHOUSE):

Plastic in any case does not apply for an extract from the cooker. Even aluminum can not. Only galvanized or stainless steel.

Here is what our users say about the tube, designed to create ventilation channels.

Smart2305 (User FORUMHOUSE):

In extracts of connection - 150 mm. The diameter of the riser pipe must be - 200 mm (equivalent to a square pick themselves).

Requirements for ventilation in the kitchen.power calculation.

Choosing the hood for your own kitchen, each of us thinks about what the power of this device should be. In all cases, the rate depends on the size of the kitchen premises. If your kitchen area less than 10 m² (inclusive), and height - 2.5 - 2.7 m, the hood, pass through a 280-350 cubic meters of air per hour, it can satisfy your needs. If the kitchen area more, and the power of the device should be appropriate.

In principle, this option can be found from the sellers and can be independently calculated by the formula: V = S * H ​​* 10 * 1.3. It: S and H - This area and the room height, V - volume (m³ / h).

learn about the general principles for the creation of ventilation systems in private homeAnd get detailed information on the premises ventilation features with high humidity you can read a couple of useful articles posted on FORUMHOUSE portal. If you are interested in principles of arrangement of ventilation systems in kitchensIf you have experience, and you can not wait to share their experience in this area, please visit the appropriate topic, where you can find a lot of interesting things for themselves. A video about device ventilation with heat recoveryIt will help you to solve the questions, the answers to which you, for whatever reason, were not able to find, read the previous materials.

Discuss the article and read other materials devoted to country life you can on the websiteFORUMHOUSE.

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