Plastic ventilation channels for hoods: flat, rectangular, round

Venting channels are probably something you’ve heard about if you’ve ever installed a kitchen hood or are considering upgrading your home’s ventilation system. Plastic ventilation channels are a common option for kitchen and bathroom ventilation. They have different sizes and forms, and each has advantages of its own. To assist you in selecting the ideal solution for your requirements, we’ll examine flat, rectangular, and round plastic ventilation channels in more detail in this post.

When comparing plastic ventilation channels to their metal counterparts, one may initially notice how much lighter they are. This makes them simpler to work with when installing, which is a big plus for do-it-yourself projects. However, their lightness does not imply weakness. As a matter of fact, they are highly resilient to rust and are a long-lasting fix for the ventilation system in your house.

The flexibility of plastic ventilation channels is another crucial feature. These channels can be cut and connected to fit nearly any configuration, making them ideal for situations where you need to maneuver around corners or work in a small space. This adaptability is particularly helpful when renovating an older home with an unusual layout or when working around existing structures.

Aesthetics, installation space, and airflow are important considerations when choosing between round, rectangular, and flat plastic ventilation channels. When running ducts along walls or ceilings, for example, flat and rectangular channels are perfect for confined spaces. They will more readily mesh with the architectural style of your house. Conversely, round channels typically permit more even airflow, which can raise your ventilation system’s efficiency.

In the end, the best option will rely on your unique requirements and the available space. You can improve the ventilation in your house and keep installation easy and efficient by knowing the advantages and disadvantages of each type. We’ll go into more detail about each kind of plastic ventilation channel in the upcoming sections so you can choose the one that’s best for your application.

Air duct size and cross section

The ventilation system box comes in various shapes and levels of stiffness. Their looks and technical attributes are different.

One type of plastic ventilation duct is:

• round section;
• rectangular, flat or square.

The plastic’s thickness affects rigidity. The element weighs and stands more when it is thicker. Ventilation pipes with a length of 2-4 meters are supplied by manufacturers to the market.

Corporated channels are created using the wire frame as a guide. They are less expensive and lighter. Mounting them at any angle is possible.

Round

There are multiple variations of round air ducts available. Products with non-standard dimensions are available.

Round plastic ventilation ducts are possible.To assemble industrial ventilation boxes, they are utilized.

Section, mm	Length, m
100	0.5–2.5
125	0.5–2.5
150	0.5–2.5
200	0.5–2.5

Channels with a diameter of 2.4 meters are used in industrial settings.

Rectangular

These kinds of products result in varying thicknesses, widths, and heights. The walls of the rectangular plastic channel are wider the larger its cross section. This gives the element’s geometry the required rigidity.

Products that are rectangular differ in thickness and width.

Code	Length, mm	External height, mm	Internal height, mm	External height, mm	Internal height, mm
5015	350	55	52	110	107
7015	350	60	57	122	119
8015	350	60	57	204	200
5020	500	55	52	110	107
7020	500	60	57	122	119
8020	500	60	57	204	200
5025	1000	55	52	110	107
7025	1000	60	57	122	119
8025	1000	60	57	204	200
50035	350	55	52	110	107
70035	350	60	57	122	119
80035	350	60	57	204	200
5005	500	55	52	110	107
7005	500	60	57	122	119
8005	500	60	57	204	200
5010	1000	55	52	110	107
7010	1000	60	57	122	119
8010	1000	60	57	204	200

The majority of products vary in wall thickness based on height. They get thicker the higher they are.

Which channel shape is better

Compared to flat or square channels, round channels have a higher throughput. Vortex flows encounter less resistance where the structure bends.

With the same bandwidth, the rectangular box has a larger section than the round one. However, mounting it over cabinets with hinges is simpler. These air ducts can blend in beautifully with the interior design. It’s simple to conceal them behind an ornate ceiling.

Mounting a rectangular box is simpler.

Corrugated round plastic pipe systems offer greater flexibility. They are able to be bent and mounted at any angle.

Constructive differences: shape, size, material

The following are the most typical and well-liked sizes for pipes and channels:

Regarding circular pipes:

Name	Dimensions (mm)	The letter in the drawing
The diameter is internal	100; 125; 150; 200	D
Length	350; 500; 1000; 2000	L

Name	Dimensions (mm)	The letter in the drawing
Height	55; 60
Width	110; 122; 204	B
Length	350; 500; 1000	L

Extra titles Wall thicknesses are indicated to be displayed in D1, B1, and A1. They typically measure 3-5 mm.

Material

Many different types of polymers with different features and attributes are grouped together under the term "plastic". The range of maintained temperature changes is the most significant indicator.

Plastic	Temperature difference	Peculiarity
PVC	-thirty	+70	Cheap
PVDF	-40	+140	Good chemical resistance and fire properties
Paragraphs	-20	+120	Insoluble with acids, alkali and does not respond to organics
Pnd	0	+40	High flexibility, protection against mechanical damage

PP is ideal for range hoods. The material is easily cleaned and completely resistant to chemical damage. Select PVC or PVDF if the room has a heating source (furnace, batteries, etc.).

Which duct to choose: round or rectangular

The best aerodynamic properties are found in round pipes. However, hanging them and embedding them in the wall is inconvenient due to their form.

This is why you’ll find plastic rectangular ventilation in the majority of homes. Although the form’s characteristics make aerodynamics worse, mounting such channels along walls or beneath ceilings is more practical.

Use round parts in the room if aesthetics are not a priority. Rectangular channels are the preferred option if ventilation is to be included in the design. Approximately the same amount of money is extracted.

Specifications

The ventilation system’s plastic components are resistant to corrosion. The material mounts quickly, is neatly cut, and doesn’t need any extra isolation.

Since the PVC channels’ inner surfaces are smooth, air resistance is essentially nonexistent.

Comparatively speaking, plastic is lighter than metal. It can last anywhere from 20 to 50 years in service.

Advantages and disadvantages

Products made of plastic offer the following benefits over those made of other materials:

1. Low price.
2. Simplicity of installation.
3. Prefabricated design with a butt system.
4. Good aerodynamic properties.
5. No hum (iron structures are badly buzzing).
6. Do not rust.

Among the flaws, the following are noteworthy:

1. Combustibility. When fire, caustic smoke appears. The integrity of the structure and harmful gases are violated quickly spread throughout the room.
2. Electrification. Due to the constant movement of the plastic accumulates a static charge and attracts dust. This increases the level of fire hazard.

The primary issue is the increased fire risk. For this reason, installing plastic ventilation in large buildings or underground is prohibited by SNiP regulations. In the event of a fire, the plastic will melt and the rooms will fill with caustic smoke that enters through air channels.

Where plastic ducts are used

Any residential or commercial building should have free air circulation in compliance with the relevant regulations. Ventilation systems that gather from specific pipes supply it.

The purposes of plastic air ducts are:

• kitchen hoods;
• vendes in apartments and houses;
• compulsory ventilation of premises in enterprises.

Kitchen hoods are equipped with plastic air ducts.

Restaurants, retail establishments, and dining areas also favor plastic collection systems. It is robust and less expensive. The air-diversion design operates virtually silently.

Features of design and installation

Without the assistance of a specialist, one can install a plastic box to control the ventilation from the kitchen hood on their own. In this situation, it’s important to consider a few basic aspects of how these systems are designed and installed.

There are several standard steps in the installation of the plastic system that must be completed by both hired laborers and an independent master who chose to construct the box by hand.

Stage #1 – selection of the geometry of the ventilation system

Almost any geometry of a plastic ventilation box can be realized thanks to a large selection of structural elements.

When designing the air duct, the following guidelines need to be followed in order to maintain the air passing system’s functionality at the appropriate level:

1. The length of the box. If possible, it is necessary to minimize the length of the box. The optimal distance from the hood pipe to the ventilation grill is considered a distance of less than 3 meters.
2. Less elements. It is advisable not to use a large number of elements that change the direction of air movement. Bends, narrowing and various transitions create additional aerodynamic resistance.
3. A minimum of turns. It is necessary to minimize the number of knees with a rotation of the box by 90 degrees. They create the greatest resistance to the movement of the flow, generate noise and accumulate deposits in the form of fat and dust adhering to it.

It is important to keep plastic from heating up to more than 50 degrees Celsius if the box is positioned close to a heating riser or other heat source.

Either avoid the hot object or place thermal insulation between it and the air duct in order to accomplish this.

Polystyrene is the most convenient material to use as an isolation because of its low thermal conductivity. Furthermore, he won’t make any noise when the box vibrates. The installation of a 90-degree corrective angle and current to protect the river. If the channel were oriented differently and its narrow portion faced the wall, it would be feasible to use a multi-sided knee to get by at angles between 15 and 20 degrees.

Stage #2 – installation of a check valve and grille

A check valve is an essential component of the ventilation system, and its importance cannot be overstated.

The valve is placed at the end of the duct if the box only branches to the mine from the hood and does not go to any other sources of air fence. Using a lattice with a check valve to stop air return is an additional choice.

When there are multiple air fence sources in the ventilation system, a check valve is placed close to where each branch connects to the main air duct and another close to the lattice. A common method for installing check valves in the ventilation system when there are two air fence points and an external lattice

In the event that natural ventilation is required, there are three options available when the hood is off:

• divide outputs for forced and natural ventilation, and they should not go into one ventilation shaft;
• install the tee “hood – lattice – check valve” near the exit;
• use a ventilation grill with slots for natural air movement and protection against reverse traction.

Sometimes rodents or birds that reside in a ventilation shaft will make their way inside the duct. They may perish once inside the plastic box’s bends, which would cause decomposing materials to spill into the space.

In order to stop this kind of thing from happening, a lattice that leads to the mine or the street is frequently equipped with extra security that animals cannot get past.

This article provides comprehensive details on the varieties and choices of ventilation grilles. When determining the diameter of the hole, it is important to consider how much the cross section is narrowed when the ventilation grill is protected from birds and rodents.

Stage #3 – fasteners and air duct placement

Depending on where they are in relation to the cabinets, walls, and ceiling, the plastic duct sections that run from the hood to the ventilation grill can be fixed in a variety of ways.

Any option can be independently installed, and it is not difficult to do so.

To prevent vibration noise, box sagging or other deformations that could lead to a depressurization later on, and other potential problems, this procedure must be handled carefully.

If the box is inside the cabinets, clamps are used to mount it to the back wall of the cabinet. Also, use polystyrene or polystyrene foam inserts to seal the duct’s passageways through the walls.

When these materials come into contact with the system’s vibrating components, they don’t create any noise.

If there is a section of the air duct above the cabinets, the simplest method to attach it to the cabinets is to use self-tapping screws and holders for a short length. In its current configuration, the plastic box exerts negligible side pressure.

It is recommended by the holders that the duct be fastened to the wall or ceiling after one meter. Special clamps, which are available under the dimensions and form of the purchased box, are used for fixation.

The entire plastic structure weighs little, making it simple to assemble. Plastic boxes can be fully concealed by drywall and a suspended ceiling. In this instance, sealing and fastening the entire structure without considering how it appears visually is acceptable.

When the hood is running at maximum power, it is necessary to verify the stability of the fixation if the plastic box is closed by a stretch or suspended ceiling. In other situations, once vulnerabilities are identified, the mount can be readily reinforced.

Occasionally, when the ventilation system is operating, solid objects like cabinets or walls may come into contact with the vibrating components of a plastic box, causing a knocking or rattling sound.

In this instance, placing a piece of foam in between them suffices in place of additional fastening.

Pros and cons, scope

Many people have negative perceptions about plastic air ducts because they are unsure that the material does not release harmful substances when in use. Maybe low-quality and dangerous plastic, but there are so many plastic components in household appliances even this isn’t a big deal. For instance, the majority of the parts in a kitchen hood with filters are composed of plastic. The most challenging operating conditions in this case are high temperatures, a lot of fat, and chemically active substances evaporating.

Not even the exposed installation of plastic pipes detracts from the aesthetic

Plastic is generally advised by experts for exhaust ventilations. There aren’t any limitations. However, we require heat-resistant, specially formulated plastic for the influx. especially in the case of a heated or recovering tributary.

Where to use

Issues with the fire service are another reason why using plastic air ducts is not advised. In certain instances, they neglected to sign a permit if the ventilation system was made of plastic before using gas equipment. However, it was a frame house, and other types exist. It is best to ask the local fire inspector for clarification if you have any questions. Generally speaking, regulatory documents contain recommendations.

Risk associated with SNiP 41-01-2003

Plastic air ducts are permitted in low-rise residential, public, administrative, and industrial buildings of category D, per SNiP 41-01-2003 paragraph 7.11. They cannot be installed in rooms with standard fire safety regulations, attics, technical floors, subterranean spaces, or basements.

Advantages and disadvantages

Plastic air ducts have supporters and detractors. Their primary shortcomings are:

• Combustibility. Everything is clear here. Only metal ducts do not spread fire. Although not all plastics burn and spread combustion, such materials with “reduced” combustibility are expensive. Therefore, plastic ducts are allowed only in one -story houses.
• The accumulation of a static charge, which leads to dust sticking (it can flare up again). In fact, much more accumulates in corrugated areas of dust. To reduce its number, it is necessary to mount a plastic duct after the completion of “dusty” construction work and install filters that catch most of the dust. In addition, plastic ventilation pipes are processed with a special composition. He forms a film on the surface, which prevents the accumulation of a static charge.
  An example of using plastic ducts to connect a kitchen hood
• With low manufacturing, thin walls or with a large section, gaps can form due to changes in the geometry in the joints. This can be fixed, but there is such a drawback.

The use of plastic air ducts has the following drawbacks. The benefits are more than sufficient:

• Simple installation. The presence of fittings and shaped elements allows you to create a system of any configuration. Plastic is easily cut, weighs little.
• Due to the perfectly smooth walls, air meets less resistance.
• It is easier to ensure tightness. For reliability, the joints can be smeared with sealant.
• Modern plastic air ducts are joined with the help of “VSTOK” locks without overflows, which reduces the resistance when the air moves.
• Low noise level. With performance up to 100 cubic cubes/min, the air movement is almost silent.
• Not subject to corrosion.
  Here is such a set of shaped elements allows you to make a ventilation system of any complexity from plastic pipes

Although a plastic duct isn’t the best option overall, its benefits—such as its simplicity of installation and excellent performance—make up for its drawbacks. Plastic is generally advised by experts for exhaust ventilations. There aren’t any limitations. However, we require heat-resistant, specially formulated plastic for the influx. especially in the case of a heated or recovering tributary.

Additionally, it is worthwhile to choose based on operating conditions. For an exhaust ventilation center, for instance, it makes sense to use a plastic duct from wet premises because stainless steel ducts are highly expensive and galvanized are prone to corrosion.

Pros and cons of plastic air ducts

The budget and operating conditions will determine which material is used to make the ventilation box. Galvanized equivalents are gradually displacing more affordable PVC products. They have unquestionable benefits, but they also have disadvantages.

Benefits of using plastic pipes:

• smaller noise;
• lack of corrosion;
• ease of installation;
• light weight;
• aesthetic appearance;
• long service life;
• low cost.

Plastic ducts have the advantages of less noise and lower cost.

It is not necessary to paint or otherwise embellish the system nodes when installing in an apartment or residential building.

The drawbacks of plastic ducting

• They have no resistance to high temperatures;
• Strong cold can destroy the elements of the system.

PVC melts and distorts when heated, identifying toxic materials. The structure becomes less elastic in extreme frost and is susceptible to collapsing with a light hit.

However, ventilation systems are installed outside using a diverted pipe indoors. As a result, these outcomes are incredibly uncommon.

Which material to choose for a ventilation duct

You should consider both the plastic’s technical properties and the features that control how the duct operates when selecting parts for it. If polypropylene is appropriate for the kitchen hood, low-pressure polyethylene (PND) should be used in industrial spaces.

Polyethylene

The substance doesn’t decay. able to endure chilly conditions. neither dries out nor cracks. has more strength and can bend with ease. It is applied to intricate structures in residential, commercial, and industrial buildings.

Polyethylene is easily bent and does not rot.

Polypropylene

Extreme heat has no destructive effect on polypropylene ventilation systems. Only at 175 ºΡ does the material start to melt.

These pipes are used for gas and steam distribution in addition to air recirculation. They are able to function under pressure and are resistant to mechanical harm.

Polyvinyl chloride

Apartments and other residential buildings’ ventilation systems are put together using PVC air ducts.

The substance is safe for the environment. Under typical operating circumstances, it poses no risk to human health. resistant to mineral oils and the acid-base environment. Not fuel, not susceptible to solar radiation. Retains all of its properties at temperatures between -15 and +60 °C. frequently used in apartments to assemble ventilation systems and kitchen hoods.

Fluoroplast

Products made of this material can withstand temperatures between -70 and +140 º while maintaining their elasticity and strength. resistant to both moisture and harsh alkaline environments. Simple to install: they require little cutting, milling, or drilling.

Strength and elasticity are retained in fluoroplast.

Other selection criteria

The inner surface of plastic ventilation ducts should be considered when selecting them; it should be smooth. In this instance, there will be efficient air circulation.

One key sign of a high-quality material is its flexibility. If the element is too hard, it will be harder to mount and have a shorter lifespan.

Diameter

There are standards for both residential buildings and sizable manufacturing facilities, based on which the ventilation system’s throughput is determined.

Three primary sizes are utilized in apartments and small buildings:

• high power extract or ventilation with constant air circulation – 100 mm;
• a small power system designed for periodic ventilation of the room – 125 mm;
• rooms where people are constantly located, offices – 150 mm.

As per the regulations overseen by SNiP, the minimum air exchange frequency for houses and apartments is 0.5 cubic meters per hour. This criterion must be considered when choosing the air duct’s diameter.

There are ventilation bandwidth standards for residential buildings.

Corrugation or not

It’s not essential to use just pvc or corrugated pipes for the hood to function properly. It is acceptable to assemble structures made up of various channel kinds. What matters most is that the system’s throughput meets the required thresholds.

Corrugation offers a number of benefits over plain plastic, including:

• the ability to lengthen or squeeze the channel within small values without adding or removing elements;
• installation at any angle;
• low cost.

Plastic has a more attractive appearance. After installation, decorating is not necessary.

The quality of the material

The company’s product is either gray or white in color. The components bear the manufacturer’s marking, and the price cannot be less than what the market will bear.

Plastic channels ought to be pliable and able to retain their shape even under light compression. In certain places, burrs, cracks, and deformations are unacceptable.

The color of the ventilation duct is white.

Plastic style elements

Different approaches to kitchen layout have resulted in different geometry and topology for ventilation systems, ranging from hoods to the mine. As a result, unique components are offered to enable the realization of nearly any plastic box configuration.

Direct components of a duct with a round or rectangular shape are the ventilation ducts. Their standard lengths are 0.35, 0.5, 1, 1.5, and 2 meters; however, you can independently saw off a segment of the necessary size with a hacksaw or grinder.

If a straight section longer than two meters is required, it is mounted using multiple standard-length pieces and specialized connectors for plastic channels.

In this instance, the lengthening of the site as a result of the connector’s size does not happen.

The knee, which is used to rotate the air duct at an angle of either 45 or 90 degrees, is another essential component. Elements for rectangular boxes are identified by their ability to change both the horizontal and vertical directions.

Instead of multiples of 45 degrees, the so-called multi-sided knee is used for rotation to corners. One of the connector’s sides is removed, depending on the necessary angle. ELEPRETS SOLEN: There are six different types of channels: 1. Rectangular; 2. Round; 3. Connector of round; 4. Vertical; 5. Horizontal; 6. Multi-knee

Special adapters are used to convert a round box into a rectangular one, or vice versa.

Their use is typically caused by the ventilation ducts’ different shapes from the hood’s output funnel or the invoice hole. They can have an angular or straight shape.

The most popular transition options on the market are as follows:

• from a diameter of 100 mm to size 110×55 mm;
• from a diameter of 100 mm to size 120×60 mm;
• from diameter 125 mm to size 204×60 mm.

Gearboxes are used when it’s necessary to change a plastic box’s size without altering its shape. A unique universal adapter is available for round options, which can be used to connect all common sizes.

Tees are available for complexly topped buildings, allowing air to be directed from multiple hoods—the kitchen and bathroom, for instance—in the direction of the exit.

They can have a combined shape, be round, or rectangular. SOILE ELEPRIES: 1 is the flat channel connector; 2 is the round knee; 3 is the direct adapter;4 is the corner adapter; 5-Round gear Six-regular gearbox

Holders are used to secure the box’s components to the wall. Plastic structures are easy to install because they are not the same as metal weight.

Using home-made structures is inappropriate because these factory-made parts are reasonably priced and complement the interior design of the space.

Above the opening in the wall that leads to the ventilation shaft or onto the street, a wall overlay or grille is fastened. There may be more slots in the grate for natural ventilation, if needed.

In this instance, protection from the air flow infiltration caused by the exhaust of the air flow through these holes is required.

The check valve is used to stop reverse traction with non-functioning extract. Its function can be to operate the ventilation grill’s blinds, or it can be integrated into the plastic canal connector.

Without such a device, air could enter the room through the ventilation shaft or from the street. SOILE ELEPRIES: Round gear (number 1), round tee (number three), rectangular tee (number four), round holder (number five), and overlay for round channels (number six).

There are many different shapes available for kitchen hood plastic ventilation channels, but the most popular shapes are round, rectangular, and flat. Because each shape has advantages of its own, the best shape for you will depend on your particular needs and kitchen design. Flat channels slide easily behind cabinets or walls, making them perfect for confined spaces. Rectangular ones are a popular option for many installations because they provide a balance between flexibility and air flow efficiency. Longer runs with fewer bends are ideal for round channels, which can enhance ventilation efficiency. In the end, it comes down to choosing a shape that complements the style of your kitchen and effectively removes moisture and cooking odors.

Ventilation elements

The following elements make up the entire design:

1. air channel (round or rectangular);
2. connectors;
3. adapters;
4. knee (rotation of 90 degrees);
5. Substants;
6. linings for walls (inserted into the wall and connected to the canal);
7. holders (for installation for the ceiling);
8. Protective grilles.

Sequentially, plastic ventilation elements are gathered from small blocks to a single system. Fastening locations are separated by a unique composition and occasionally seized. This is required to prevent air channel violations, as any unforeseen hole exacerbates flow rate.

How to make installation

For an experienced worker, assembling the ventilation from plastic elements is not difficult. To do this, you’ll need a grinder, jigsaw, or basic hacksaw. Tape the nodes together with sealant.

Fastening to the surface

Pipes, adapters, tees, and other components are assembled to form the system. The wall or ceiling is fastened with specialized clamps. The ducts are sealed at the junctions by applying sealant and connecting them to other structural nodes via couples.

Guidelines for mounting a ventilation system to the wall and ceiling:

1. Install the clamp by fixing it on the surface with screws or dowels.
2. With a little effort, push the pipe into the groove of the clamp so that it snaps around it.

If you want to fasten flat and square channels together, you can use drywall suspenders instead of clamps. In this instance, self-tapping screws spaced the same distance apart as the pipe’s width apart are used to secure them to the wall.

You must tighten the screws and bend the edges of the suspension by using a plastic element. Though more labor-intensive, this method is less expensive.

Assembly rules

When planning and gathering ventilation for the space, it’s important to steer clear of creating an excessive amount of bends and turns. They lower throughput and power.

In order to gather ventilation, turns must be avoided.

Air masses should flow in the direction of the restrooms and bathrooms, not the other way around. Otherwise, living rooms might start to smell bad.

Pipe and structural element joints need to be connected by at least 50 mm. This will give the required dependability and rigidity.

Building in a closet

It might be required to run the system through the cabinet when installing kitchen hoods, bathroom ventilation assemblies, or small room ventilation systems. When furniture is suspended over a wall-mounted ventilation duct, this is necessary.

To accomplish this, use a jigsaw to cut the holes on the side and back walls of the closet to the appropriate diameter. They will be passed through by a plastic pipe or corrugation.

The finished-hole cabinet needs to be put in its proper location. After that, put the air ducts together by sealing the joints.

Features of the arrangement

Ventilation, whatever its form, is made up of two parts:

• Supply channel;
• Exhaust pipe.

The pipes’ job is to maintain air circulation, which is made possible by the fan or the difference in pressure between the inside and outside of the building.

The installation process begins with the creation of a wiring plan for each building’s space. Numerous factors need to be taken into account when performing calculations, such as air mass movement, flow rate, and system performance.

Plastic duct mounting starts with precise planning and calculation. Although this procedure is very straightforward, it has several features:

1. Vertical (exhaust) pipes should not have horizontal branches. If such are created, then they should be calculated in the overall system performance.
2. Plastic parts should be tightly adjacent to each other. All the cracks smell with sealant.
3. In difficult places, the use of corrugations is allowed. But often it is not recommended to use them, since they have low aerodynamic properties. Corporals are used without a reserve so that the cross section does not change during use (affects the overall resistance).
4. Plastic parts are mounted after preliminary cleaning the installation site from dust. All compounds are treated with antistatic so that small particles do not score free space.
5. When purchasing the material, you need to count on some stock – both the pipes themselves and the fasteners. It is very likely that during the construction, some areas will need to be further strengthened.

How the diameter is selected

Engineers perform mathematical calculations during design and compare all values with the table. A table comparing the parameters and air flow rate is shown below.

The room’s volume or the system’s overall performance are used to calculate the air duct’s diameter. Regulation papers specify how the air circulation’s volume and speed are to be managed. The image shows the air exchange requirements for one family member on a private home’s property.

Based on engineering calculations, different plastic air duct types and sizes are chosen for ventilation. The system’s performance and the air flow’s velocity must be taken into account. If it is higher, a regular draft will occur; if not, air will stagnate.

Shape	Description
Flat	Space-saving design, ideal for tight spaces and easy to install behind walls or ceilings.
Rectangular	Efficient airflow, suitable for longer duct runs, often used in domestic settings.
Round	Commonly used, allows smoother airflow with minimal turbulence, and fits most standard fittings.

Selecting the appropriate plastic ventilation channels for kitchen hoods can have a big impact on the insulation and heating of your house. Each type of ducting—round, rectangular, and flat—has advantages of its own, and the best option for you will depend on your kitchen’s design, aesthetic tastes, and financial constraints. Selecting the appropriate channel type for your setup is vital because these channels are essential for preserving air quality, eliminating odors, and lowering excess heat.

Flat ducts are perfect for concealed installations and small areas. They offer a discrete and practical solution, fitting neatly behind cabinets or in between walls. Conversely, rectangular channels provide a balance between airflow and compactness, which makes them appropriate for a variety of kitchen designs. Round ducts are a popular option for larger kitchens or longer ventilation runs because of their superior airflow.

Think about the overall aesthetic you want to achieve as well as the size and shape of your kitchen when selecting your plastic ventilation channels. Remember that a proper installation is essential as well. Make sure the ducts are tightly sealed to stop air leaks, which can reduce the energy efficiency of your house. Whether you choose round, rectangular, or flat channels, make sure to spend money on high-quality materials to guarantee longevity.

Recall that having adequate ventilation helps create a cozy and healthful home. Thus, give careful thought to the kind of ventilation channels you want for your kitchen hood. If you’re unsure, seek professional advice to ensure that the choice you make is the best fit for your unique circumstances. By doing this, you’ll improve the usability of your kitchen and create a more cozy and energy-efficient living area.

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