Ventilation pipes for the hood are part of the system, which ensures the removal of polluted air to the street or its purification. Kitchen hood is one of the designs, which directly affect the comfort of living in the house. For the correct installation and operation of such communication, it is recommended to carefully study all its characteristics and nuances of installation as the most exhaust devices, and pipes for them.
The hood pipe can be of any shape and size depending on the type of appliance
Device and purpose of the duct
The main task of the ventilation system is to remove harmful substances from the premises, smoke, unpleasant odors. in addition, it is responsible for air purification. Usually in private homes, the arrangement of furniture and appliances is included in the construction plan, which allows you to perform the hood in a convenient way. In apartments problems with installation of a plate directly under the ventilating channel or the conclusion of an extract arise much more often..
To date, there are many solutions, how to extend the air duct, but, experts do not recommend installing too long structures. It has to do with that, that the length of the duct is displayed on the efficiency of the system.
exept this, the ventilation pipe for the kitchen hood should not have many bends. It also reduces its performance. Based on that, it is possible to draw a conclusion, that the closer the hood is located on the mine input, the higher its efficiency.
Importantly! It is not recommended to place the plate near the wall, which is opposite to the ventilation shaft, as the ventilation duct will be too long. It's worth remembering, that with each extra meter the performance of the system decreases.
Characteristics and features of the exhaust duct primarily depend on the type of hood. Ventilation systems are divided into two types according to the location of the outlet: without taking to the streets and with a conclusion. Corresponding to the second option, the system may have external ventilation pipes, which are conducted through a wall or roof.
For, that the extract carried out the functions, it should be located directly above the stove
Materials, from which pipes for an extract are carried out, may be different, but the most common of these are plastic and corrugated products. And those, and others have their advantages and disadvantages, which must be read before choosing them.
Classification of hoods
To date, all kitchen hoods are divided according to the following indicators:
- according to the installation option;
- on the principle of action.
According to the installation option, the following types of hoods are found:
- Suspended. Such devices are installed directly above the stove (are fixed, usually, on the wall or furniture).
- Built-in. Installation of such devices is carried out inside a kitchen cabinet or a special container. Built-in appliances have a minimal impact on the design of the room, and cope with their tasks no worse, than suspended.
- Desktop. These devices are not household and are rarely used in private homes and apartments. The most common desktop hoods in the kitchens of restaurants and other catering establishments.
The built-in extract hides furniture or a special box so, that is not visible to the device itself, no ventilation pipe
According to the principle of operation, all exhaust devices are classified as:
- Filtering. In such an exhaust design, air circulates through a special filter and, so, is cleaned. Carbon filters are the most popular for such devices, but they need constant care. Such a system will cope well with its tasks in a small kitchen.
- Attractive. This equipment removes harmful substances and odors directly into the ventilation shaft, which is provided by the plan of the building. Suitable for the kitchen, on which different foods are often prepared.
Types of air ducts
To date, choosing the right air duct for a particular case will not be difficult, due to the many varieties. It is recommended to select these products with their design features. According to this indicator, all air ducts are divided into two types:
- built-in;
- external.
Built-in air ducts are susceptible to foreign bodies inside the structure. Therefore at installation it is necessary to consider, that the surface of the pipes must be smooth. Otherwise, normal air circulation will be disrupted and communication performance will be reduced.
Useful Information! Built-in air ducts are mounted in the walls. Their use requires periodic preventive inspections and cleaning works.
The exhaust pipe can go outside, to do this, make a hole in the wall
External ones are made in the form of hanging or docking boxes, which include pipes and other structural elements. External air duct, usually, is selected for the design of the room.
Types of air ducts by material
All pipes for hoods are divided into two main types, depending on the material of production:
- hard plastic;
- flexible corrugated.
Plastic
Plastic external ventilation pipes for hoods can have a round or rectangular cross section. To date, the most popular plastic ducts with a round cross section, as the round form allows to reduce air resistance to a minimum. In accordance, The efficiency of such air ducts is higher, than rectangular. The latter have a more presentable appearance and fit better into the interior of the kitchen. The dimensions of the plastic ventilation pipe for the hood can be different, depending on the diameter of the hole in the ventilation riser and the cross section of the exhaust pipe of the device.
Proper connection of individual structural elements is considered to be a very important parameter for the normal functioning of ventilation communication.. Usually, docking is performed with the help of special components, which can be purchased together with ventilation pipes.
Plastic exhaust pipes come in round and rectangular sections
Consider the main advantages of using plastic pipes in the ventilation system:
- plastic has excellent sound insulation properties;
- the walls of plastic pipes are perfectly smooth, allowing air to circulate through them, without encountering any obstacles in its path;
- plastic pipes do not accumulate dirt and grease on their walls.
Corrugated
Exhaust pipes in the kitchen can be corrugated. The main advantage of such an air duct is the ease of installation. Corrugated metal pipe, which is used for the ventilation system, mounted so: one end is attached to the hood, and the other to the ventilation shaft. Fixing of a corrugated pipe occurs at the expense of special tightening collars.
The output of the hood is made in the shape of a square, therefore, when buying a corrugated pipe, it is recommended to buy an adapter immediately, which will allow you to connect the structure into a single whole.
Corrugated Hood has the following advantages:
- corrugated pipes can be stretched, thereby adjusting the length of the duct;
- the absence of connecting elements and angles minimizes the resistance inside the pipe;
- such products are an order of magnitude cheaper, than plastic;
- if necessary, due to the flexible structure, you can install a corrugated pipe, which has a cross-sectional index above, than the diameter of the hood. In this case, a clamp will also help.
Corrugated pipes are flexible, easy and simple in installation - for their connection with a branch pipe of an extract apply usual collars
Hood and air duct selection options
When choosing the components of the ventilation system, experts recommend paying attention to the following points:
- the power of the exhaust device;
- dimensions of the exhaust device;
- compatibility of the hood with the interior of the kitchen.
The minimum power for the hood can be calculated by a simple formula: we calculate the volume of the kitchen (to do this, multiply the length of the room by the width and height), and then multiply the resulting figure by 10. So, we get the minimum power, which must have an hood in a particular case.
exept this, the hood should fit the size of the gas stove. If you ignore this rule, then ventilation does not make much sense, it will not absorb all the vapors and odors - some of them will remain indoors.
How to choose the right diameter for exhaust pipes?
When selecting the diameter of the ventilation pipes for the hood in the kitchen must be guided by an important rule - the outlet of the hood should not be larger than the diameter of the pipe. If you ignore this rule, air resistance will increase and, in accordance, communication bandwidth will decrease. The best solution is to choose the diameter of the ventilation ducts for the hood, so that it completely matches the size of the output in the device.
The diameter of the pipe must be exactly the same as the size of the exhaust pipe
exept this, an important factor, which affects the performance of the system, there is that, exactly how and with what bend the pipes pass. It is recommended to fix the pipes at an obtuse angle (very important, that the angle is not more than 90 °). Otherwise, reverse thrust may form in the structure.
Importantly! Each bend of the pipeline at a right angle reduces the performance of the system 10%.
For, to protect the outer channel from the possible occurrence of back draft, you can install a special valve. He will control and regulate the transported air and will not allow him to change direction. Before, how to start the installation of the hood, it is necessary to prepare the equipment, without which not to do:
- hood with power, suitable for a specific kitchen;
- special brackets for fixing the device;
- ventilation pipe for the hood;
- clamps;
- ventilation grille;
- adapters (if necessary);
Hood installation tools:
- perforator or drill;
- screwdriver;
- roulette;
- marker;
- construction knife;
- ripping saw;
- level.
Stages of installation of the built-in extract
The main stages of installing a built-in hood include:
- First you need to prepare the necessary space for the built-in device (container or cabinet). Importantly, so that there are no discrepancies in size.
- An opening for the air duct must be made in the upper wall of the cabinet. There will be a transition ring.
- At this stage, it is necessary to fix the cabinet to the wall. Brackets are used for this purpose. It's worth remembering, that the distance from the hood to the hob is specified in the instructions. Most often, this figure is 65 div.
- Then the panel of the exhaust device is attached to the cabinet or other container.
- Finally, the installation of external plastic ventilation pipes for the hood. The ends of the pipes, in contact with the hood opening and the ventilation duct.
Cabinet or box, which will be built-in hood, must exactly match the size of the device, then it will be securely fastened
For, that the system had good performance, it is necessary to perform it with respect to the distance between the individual parts, and securely connect all parts.
Stages of installation of a suspended extract
Installation of a suspended device is simple. There is no need to make a special container or box for such an extract. The main stages of installation of a suspended hood include:
- First you need to perform the markup in that place, where the exhaust device will be attached.
- The socket with grounding is mounted (always next to the hood).
- At this stage, the device is fixed to the wall with brackets.
- Further, as in the previous case, with the help of clamps clamps pipes for kitchen hood are connected.
Useful Information! The most popular option for masking such a system are kitchen cabinets. To date, their range is quite large, allowing you to choose the right solution for every taste. You can hide the exhaust pipes in a special plastic box or hold them in the suspended ceiling.
Hood in the cellar
Basement or cellar is a room, which very often requires a ventilation system. The air in such a room usually stagnates and this adversely affects certain products, which are stored there.
Hood in the cellar or basement is necessary and it is necessary to arrange, following the accepted rules
There are a number of rules to follow in order to install a proper hood in a cellar. Otherwise, poorly functioning ventilation communication will be useless. Stocks of vegetables and canning in case of poor operation of the system will be prone to rot and other negative effects of the basement.
The most common design solution for basement ventilation is two-pipe communication, one of which performs the exhaust function, and the second - tidal. Each of these pipes is mounted on its own level. The outlets of these two pipes are also located at different levels. A hole in the basement ceiling is made for the exhaust pipe, and for tidal - in the wall at a distance 50 cm from the floor.
The diameter of the ventilation pipes for the hood in the cellar is calculated by a simple formula: on 1 m2 of cellars should be 26 cm2 area of the ventilation duct.
For, to maintain a certain order and stability in the ventilation system, you need to properly position the outlet of the structure on the roof. Experts advise to mount such an exit over the ridge of the roof. This will allow you to get the best performance in the operation of basement ventilation.