The range hood is a very important appliance in the kitchen, as it draws odors and steam from the stove and thereby keeps you and your family healthy. During the conversion or repair, the following problem may arise: the kitchen hood does not fit the headset in size or does not fit into the design at all. Therefore, the question arises of how to make a hood in the kitchen with your own hands, so that it perfectly meets all the requirements.

The principle of operation of the hood

The name “hood” itself means drawing hot, polluted air out of the kitchen and removing it from the room. The air is removed into the ventilation ducts of the building, therefore, when buying or making a hood with your own hands, you need to take care of the proper ventilation of the entire house. The efficiency of the system is directly dependent on traction.

Along with proper ventilation, it is necessary to ensure sufficient air flow into the room. For example, if you have metal-plastic windows with a high level of tightness, then for efficient operation of the hood, experts recommend using the micro-ventilation function, or installing supply ventilation valves on the windows.

Types of kitchen hoods

The modern technology market offers a large number of models of hoods. It is quite natural that before you make a hood in the kitchen with your own hands, you will get acquainted with what they are like in general in order to choose the best design option.

How it works

All devices for this purpose are divided into two large groups:

  1. Passive - these are dome-type hoods. They remove air solely due to the upward draft. Inside such devices there are no electric motors and fans. An extractor hood of this type will work only if the ventilation ducts of the house are in good condition or due to a high ventilation pipe.
  2. Active - these are hoods, the operation of which is provided by an electric motor installed inside. These devices work stably, but they also consume a lot of electricity.

Connection

According to the type of installation of the hood, there are:

  • Suspended (flat) mounted under the cabinet above the stove.
  • Wall-mounted - mounted above the stove on the wall. Case design may vary.
  • Built-in - fit into any design, as they are installed inside a wall cabinet or on a table.
  • Corner - installed in a corner.
  • Island hoods. This type of device is designed for kitchens with an island. You can fix the device anywhere in the room by hanging it from the ceiling.

Tip: The installation of a kitchen hood, regardless of type, should be at a height of 70 cm above the hob, and 80 cm above the gas stove.

Ventilation method

According to the ventilation mode, the devices are divided into:

  1. Flow - draw air from the kitchen into the ventilation shaft. This method of ventilation is called exhaust mode. It is the most productive and efficient.
  2. Circulating hoods - pass air through the carbon filters located in the case. Fresh air is released at the outlet. Such a device does not require ventilation in the kitchen, so installation is much easier, but the hood itself is less effective in terms of cleaning. The disadvantage of such hoods is the lack of fresh air, since as a result of processing by filters, the same, but purified air enters the kitchen back. In addition, filters must be cleaned and changed periodically.

Tip: When choosing a do-it-yourself hood device, consider each of these points. Only in this case you will provide yourself with comfortable cooking conditions and convenient operation of the equipment.

How to make a hood in the kitchen with your own hands?

The easiest way is to embed a corrugated pipe with an electric fan in a kitchen cabinet located directly above the stove. You cannot call such a hood beautiful and exclusive, so we suggest you make a more complex dome hood of a passive type.

Passive drywall extractor

If you already have certain skills in assembling various household items, do not be afraid of a new job. You will completely master this task and will be able to make a high-quality hood in the kitchen with your own hands. To do this, follow the scheme below.

You will need:

  • Moisture resistant drywall. From this material we will make a box for placing the air duct, as well as the dome of the device.
  • Profiles made of galvanized metal. This material will be needed for the frame of the dome itself and the box.
  • Corrugated pipe. This material will be used as an air duct.
  • Perforated metal corner - for decorating the corners of the fixture.
  • Fasteners.
  • Insulating material (for wrapping the corrugated pipe).
  • Paint and putty for finishing the dome.
  • Set of tools:
    • Perforator;
    • Scissors for metal;
    • Screwdriver;
    • Level and roulette;
    • Brushes, spatulas.

Stage number 1. Room layout

You will need to place not only the hood on the wall, but also the air duct hidden in the drywall box, so find the vent in the kitchen:

  • if the ventilation is above the stove itself, then the markup is almost ready;
  • if the hole is to the side, then it is necessary to mark the position of the duct for laying the duct on the wall.

Tip: If the repair plans include a suspended plasterboard ceiling, then the air duct can not be hidden, but let under the ceiling lining.

Stage number 2. Making a frame for an air duct:

  1. Mark the bottom of the surface of the duct box on the wall.
  2. At the level of the lower part, attach the starting profile made of galvanized metal. For fastening, use an anchor with a plastic sleeve 6 mm.
  3. Fix the starting profile to the ceiling according to the markings.

Tip: If you planned a curved duct for the duct, then cut and bend the profile before fastening.

  1. Down from the starting profile, lower several vertical fragments of the main profile.
  2. Using self-tapping screws, attach the vertical fragments to the starting profile.
  3. Form a frame for the box: install another panel of the starting profile on the hangers made.
  4. Install the cross bars on the bottom of the resulting profile.

Stage number 3. Manufacture of the hood body:

  1. Make the lower frame of the hood from the starting profile.
  2. Attach the frame to the kitchen wall.

Tip: If you install a kitchen hood in a niche, fixing it is quite simple, and if in another place, then additionally fix the side parts of the frame to the box.

  1. Cut out the frame elements of the future structure from the main profile.
  2. Connect the frame parts to the bottom frame.
  3. Reinforce the side surfaces of the hood with transverse bridges from the profile. This will give the design reliability.
  4. Connect the duct (corrugated pipe) to the vent.

Tip: To keep the air duct quiet during operation, wrap it with batting or prepared soundproofing material.

Stage number 4. Hood finish:

  1. Sheathe the housing and the duct for the air duct with drywall.
  2. Protect the corners of the structure with a perforated metal corner.
  3. Treat the plasterboard construction with putty, mask the joints of the plasterboard sheets, as well as the fasteners.
  4. Paint the hood in any color you choose or decorate in any other way.

Tip: The hood manufacturing technology described above is suitable not only for a passive device, but also for the manufacture of an active type hood. It is enough to install an electric motor inside the housing at the inlet to the air duct and connect it to the network.

Active plywood hood

Another way to make a kitchen hood with your own hands from improvised means is also very simple to perform. Choose the option that is more convenient for you and proceed.

You will need:

  • An old but workable hood (you can purchase an inexpensive new model);
  • Thin plywood for dome walls;
  • Glue;
  • putty;
  • Paint, varnish;
  • Electric motor;
  • Clamps with soft nozzles made of plastic (or rubber);
  • Brushes, spatula.

Assembly instructions

  1. Based on the old hood, we assemble the main elements: the lower frame with an exhaust grille, an electric motor.

Tip: Don't let the appearance of the structure bother you, as all the details will be hidden behind the skin.

  1. Frame elements made of curly strips, install on the base.

Tip: You can make an arbitrary frame shape, as long as the air duct fits inside the dome.

  1. Cut the walls of the hood dome from thin plywood.
  2. Paste the frame with the manufactured elements.

Tip: For accurate gluing of the dome, use clamps with nozzles.

  1. Allow time for the glue to fully cure.
  2. Treat the plywood dome with putty.
  3. Paint the manufactured hood in the color of your choice or varnish it.
  4. Attach the fixture to the wall.

Tip: If you used the old design, then the wall mounts should have been preserved.

  1. Connect the air duct to the device.
  2. Mask the duct with a decorative box. How to do it, we described above.

What do you need to know in order for ventilation to work effectively?

In order for a do-it-yourself kitchen hood to be effective and you do not have to be puzzled by the problem of its optimization in the near future, carefully read the information below.

Required device power

First of all, the power depends on the dimensions of the kitchen - its area and height. If the hood is curved, then the power of the air ducts is lost by a third. Therefore, it is necessary to calculate the power and depending on the shape of the device.

Tip: Power is cleaning performance. It is measured in cubic meters per hour. According to established norms, the air in the room must be updated 12 times per hour. Calculate the required power using a simple formula:

Kitchen area * ceiling height * 12

For example, if your kitchen has an area of ​​10 m2 and a ceiling height of 3 m, then the calculation looks like this:

10 * 3 * 12 * 1.3 = 468 m3

(If the shape of the hood is straight, then multiplying by 1.3 is not necessary).

electrical safety

During operation, grease and splashes enter the hood, which can cause a short circuit. Moisture accumulates in the kitchen and, with constantly high humidity, the chance of an electric shock increases if the device is not connected to the network correctly, so a hand-made hood must be connected to the network with three wires:

  • Earth;
  • phase;
  • zero.

Grounding according to the standard should be painted yellow and have a green stripe.

Tip: To make it easy for you to cope with the task, consider the following recommendations:

  • If the house has a ground loop, and there are also euro sockets, then there is no problem: when connecting the device, connect the wire to the ground terminal, which is indicated by the word “ground” or strips of different lengths.
  • If the equipment does not have a ground connector, then screw the wire to the metal case.
  • If you don’t have euro sockets, then do the zeroing with your own hands: connect it to a deaf neutral.
  • You can not connect a neutral wire to pipes and batteries.

In the manufacture of the hood, do not forget to follow the safety rules, especially during electrical work. If the design process did not cause you any difficulties, and the installation process scares you, then invite a specialist for these works. We hope that the self-made device for cleaning the air in the kitchen will please you and keep the health of all households.