Pipes for exhaust in the kitchen - important things

A cooker without hood does not only lose its appearance, but also becomes a serious source of odors and fumes. Without this useful fixture, the repair in the kitchen will have to be done much more often, plus the kitchen aromas will smell sweet to the whole apartment. Unfortunately, not always, it turns out, to place the stove directly under the ventilation duct and then a pipe comes under the hood to the kitchen.

Important: there are hoods in the kitchen without a pipe. Instead of the exhaust vent in them they use a system of carbon filters. They are mounted in those places where the norms of SNiP do not allow to mount an additional insert in the ventilation duct.

The price of such units is higher, plus the cost of replacement filters can hurt the budget.

Duct structure

Himself exhaust unit has a different design and power, and the problem during installation is precisely in the air overpass. In private low-rise buildings, this issue is easier to solve, there is always the opportunity to lay an additional conclusion through the roof or walls of a building.

In urban apartments, everything is much more complicated. The dimensions of the centralized ventilation ducts may not coincide, plus the oven itself may be located at a considerable distance from the ventilation window.

As for the personal output through the external wall directly to the street, here, too, not everything is simple. First, it will be necessary to collect a lot of permits for such redevelopment.

And secondly, in the cold season there is a problem of cooling the kitchen and condensate on the pipe. As a result of the collision of warm and cold streams, the pipe will be constantly wet, and it is practically impossible to get rid of it.

Tip: when planning the route of the duct, consider the main law - the shorter the route, the better the exhaust will be. The maximum length of a straight pipe, without loss of power, is no more than 3 m. With each turn or bend of the structure, 10% will be lost, plus each additional meter will take another 10%.

Which pipe to choose

The color and configuration of the currently produced material may be different. But all such structures, as a rule, are lightweight and have a long service life. All products can be divided into: smooth-wall and corrugated. Each of these options has its advantages and disadvantages.

Smooth wall constructions

In most cases, smooth wall constructions of such a plan are made of plastic, metal is much heavier and its price is higher. Of course, metal ducts are made of smooth nickel-plated pipes, but such goods are closer to the exclusive ones and, as a rule, are made to order.

Plastic lines with a smooth surface can be either round or square or rectangular. And although their basic technical data are almost identical, square and rectangular structures are still more popular. It is caused by the fact that visually this shape of the pipe hides the volume and design, it seems smaller and more accurate.

For the installation of such a line with your own hands, besides the pipe itself, you will need a minimum of 3 L-shaped adapters. You also need a vent-channel cover adapted for this design and a standard plastic sealant in order to miss all joints and joints.

The diameter of the plastic line is chosen individually depending on the characteristics of the installed unit.

The main advantage of smooth-walled plastic pipelines, compared with corrugation, is their noiselessness. Smooth walls do not create obstacles to the air flow.

Another advantage is the fact that from the inside on the smooth walls does not linger fat and cinder, the outer part of the structure is easily washed with any detergent.

Tip: if you chose smooth plastic pipes, buy them from reputable, trusted manufacturers. These structures will be operated at elevated temperatures and in aggressive environments, so low-quality plastic will quickly turn yellow. The price of plastic is not so great to save on it.

Corrugated products

Corrugated pipes for kitchen hoods are used much more often. This is because the price of these products compares favorably with competitors. Even more important is the simple installation instructions for products.

At a distance of up to 1.5m, such pipes should be fixed on the hood itself and on the ventilation window. The design is sufficiently elastic and durable to hold independently.

Plastic corrugated pipe, as well as its smooth-wall relative, practically does not overgrow from the inside. Plus, plastic products make less noise during work. As for the corrugated metal pipe, they are made of aluminum and also have a low weight.

A mandatory point here is that the aluminum corrugation during installation must be fully stretched. If it is not stretched, then it will emit a characteristic rustle during operation.

It is necessary to wash such constructions much more often, since the walls of aluminum constructions do not have such a smooth surface, grease and soot settle on them, for this reason aluminum corrugation grows faster.

How to choose a product

• When the exhaust pipe for the kitchen is selected, the main rule can be called the correspondence of the pipe diameter, the unit characteristics and the volume of the central ventilation duct.
• In this case it is better to be safe and take a larger diameter.. If the cross section of the pipe is smaller, the performance of the unit will fall, moreover, the noise level will increase and, due to increased load, the engine will fail.
• In the case when the ventilation duct of the building is not designed for such a volume of air, a large section of the pipe will not save. Here it is better to choose a unit of lesser capacity, because strong pressure will force the air back into the room.

• When installing the system, try to avoid sharp corners, the pipe should be bent smoothly. Sharp angles will not only reduce the volume of gases emitted, but can also cause overload and breakdown of the unit itself.
• Do not combine different pipe configurations.. The transition from a square to a circle or vice versa, will not look aesthetically pleasing, will entail difficulties in installation, will cause a decrease in power and, as a result, will increase the noise level.

A few words about the decor

The most common way to decorate such structures is to place pipes near the wall above furniture or to mount directly inside kitchen cabinets. The second option is preferable, since the structures inside the furniture will be much cleaner.

If the installation is performed simultaneously with a major overhaul of the kitchen, then there is an option to hide the line behind a false wall or a multi-level plasterboard ceiling. Suspended and suspended ceilings are also a good disguise for pipes. As an option, you can make a separate box of drywall, especially for masking the line.

The most affordable option can be considered as entangling the pipe with plants. Of course, live creepers on a hot pipe in the kitchen will not grow, but now a lot of synthetic decorations are produced that are not inferior in appearance to living ones. For this option, you should consider the fact that more dust will collect on this decor.

The video in this article gives some tips on the subject of hoods.

Conclusion

In conclusion, we recommend to buy ventilation pipes with exhaust hood. Each reputable firm produces a line of related products for their products. Fittings designed for a specific unit will work much better and are easier to install (learn here how to close the pipes).