Corrugation for kitchen hoods: correct sizing and installation

Under what conditions is the corrugation used for the hood?

First, let's define what kind of beast is this, corrugation? Externally, this component is a flexible pipe of round or rectangular cross-section. According to its functional purpose, the corrugated air duct for the hood is a conductor between the hood and the ventilation shaft.

So in what situations is it necessary to use such a part? There are several currently known options.

1. Installation hoods with vent to ventilation on the kitchen.
2. Installation of a gas water heater (column).

But you can do without installing the corrugation, if you consider the option hoods for the kitchen without venting into the ventilation!

We will talk separately about the rules and features of the installation, but for now, let's look at the technical parameters.

Types of corrugated pipes for ventilation and their characteristics

The main distinguishing feature of the heroines of our review is the material used in the manufacture. Both operational properties and durability directly depend on it. Modern corrugated ventilation ducts are divided into the following categories:

Plastic corrugation for ventilation - the cheapest and most stylish pipe

Such models are made from polyvinyl chloride or polyethylene. They are distinguished by their low price, convenient and easy installation, as well as a variety of sizes and designs. Thanks to such advantages, you can always choose an element that matches the color and style of your kitchen and itself hood.

Unfortunately, there were some drawbacks. Plastic corrugations for hoods do not cope well with high temperatures, deforming or even catching fire under their influence. Also, plastic is fragile in itself, so any external mechanical stress will lead to its destruction. Some homeowners report an unpleasant odor from exhausting polluted air - but only ultra-budget representatives of the class from unknown and unverified manufacturers.

IT'S IMPORTANT TO KNOW!

There are also plastic models of corrugations created for sewage. Do not install them in your ventilation system under any circumstances, as their design will not ensure the proper removal of odors and gases from the apartment. Also in such pipes there is no antistatic coating, which is fraught with the risk of fire or deformation from overheating.

Aluminum corrugated duct - a shiny conductor for your hood

Unlike its competitor, this option is much more popular, and there are many reasons for this. Firstly, it is the lightest and most flexible material used. Secondly, the corrugated aluminum pipe is not afraid of high and low temperatures. Also, aluminum is highly resistant to corrosion and other destructive chemical processes.

Not without a few fly in the ointment: when using such structures, noise is often observed, especially when the fan is operating under high load. You can also feel the vibrations arising from the contact of air with the walls of the corrugation.

Corrugated steel exhaust pipe - uncompromising perfection

If for some reason the previous options do not suit you, you should consider installing corrugated stainless steel or zinc-coated alloy. Yes, such an offer will be more expensive than a plastic or aluminum corrugation for a hood - both in terms of purchase and installation. But you will get a reliable and durable ventilation system that will serve not only you, but also your children.

How to choose the right diameter and length of the exhaust pipe in the kitchen?

After selection by material, it is necessary to correctly calculate the section of the corrugation. First, measure the diameter of the ventilation shaft inlet. The resulting value will be the minimum required section. Most often, in apartments and houses, a corrugation is used for an exhaust hood with a passage of 100, 120 or 150 mm. There are other sizes on the market, and in special cases, a rectangular shape is also used.

With the calculation of the length, everything is much simpler - you just need to measure the distance from the hood to the chimney opening. If there are no obstacles in the way, you can lead the pipe directly, but this is rare. More often than not, you will have to make various curves to maintain the aesthetic appearance of the kitchen.

NOTE!

Most hood manufacturers indicate on their products the diameter of the corrugation that is compatible with the equipment. Such marks will help you determine both the choice of the pipe and the device as a whole even at the stage of price and product analysis.

Installing the corrugation on the hood - simple installation rules

Let's say you have purchased a piece of equipment you like and all the accompanying components. The next item is, respectively, the installation of the hood and its connection to the ventilation shaft. You can hire a professional craftsman who will perform all the necessary procedures for a certain price. If you are not ready for such expenses, then you can try to do all the work yourself. We offer you step-by-step instructions for the correct installation:

Illustration	Description of action
	Mark the space for the hood on the wall with a marker or pencil (if you wish, you can also mark the schematic location of the pipe). We make holes for the bolts.
	We fix the device to the place designated for it.
	We connect one end of the corrugation to the outlet in the upper part of the device using either a clamp or an adapter for the hood (the image shows the second option).
	We attach the other end to the flange that connects the air duct to the ventilation shaft.
	Using self-tapping screws or other hardware, we attach the flange to the chimney hole.
	Ultimately, the hood should have the same appearance as shown in the video file.

USEFUL ADVICE!

Try to avoid a large number of bends, as each turn steals the efficiency of the kitchen system and increases the period of cleaning the room from odors and gases.

How to increase the length of the corrugated pipe for the hood if the size does not match

Usually, there are no problems during installation, and the entire work process takes no more than one hour. But some ill-prepared owners of hoods may face such a disaster as an inappropriate pipe length. And it's good if the store has a suitable size - you just buy a new part, leaving the old one as a spare. But what if there are only typical sizes available that are not suitable for your kitchen? There is only one way out - building up. The video selected by the Tehno.guru editors will tell you how to connect two corrugations to each other:

How to hide the corrugation from the hood in the kitchen: we solve the aesthetic issue

Another common snag that homeowners face after installing equipment is the desire or need to hide the pipe from the eyes of the hosts and guests. In fact, there are several solutions to this issue, and each of them is interesting in its own way.

Plastic box for a hood in the kitchen - cheap and cheerful

The easiest way to hide the chimney from the hood is in the kitchen. Those who have closed the wiring with cable channels at least once will gladly accept this option. You just buy separately plastic segments, inside of which the corrugation is placed. If you wish, you can choose a box that matches the color of your kitchen set or hood.

Plasterboard "box" - the choice of experienced finishers

This solution is more suitable for professionals, since drywall is a fragile material that requires a lot of construction skills. A similar method also steals part of the free space, so think about how to rationally arrange the frame and walls.

The use of kitchen furniture or suspended ceilings is expensive but beautiful

Another aesthetic, but costly way - when buying a kitchen set, order a separate shelf with technological holes, where you can place both the hood and the corrugation. This solution not only looks beautiful, but also allows you to use part of the space for your own needs.

If you have false ceilings installed, then you can use the empty space between the ceiling and the slabs by placing a pipe there. With such a way out of the position, the corrugation will be completely hidden from any eyes.

To summarize: which corrugated pipe is better to choose for the kitchen

So our next study has come to an end. We hope that the editors of Tehno.guru have fully answered the question: “Why is it necessary to buy corrugation for hoods? " Fortunately, in the 21st century, such parts are sold not only in large retail chains, but also from private sellers. Using the materials of our article and analyzing the prices to choose the best copy, you will get perfect and durable ventilation in the kitchen.