How to properly install a cooker hood for gas stoves

Insufficient ventilation in the kitchen leads to stagnation of cooking odors, gradual deposition of burning and grease on the walls and ceiling. The hood above the gas stove in some cases helps to solve the problem of removing dirty air.

Extraction tasks

Hoods for a gas stove perform the following functions:

• remove harmful substances and unpleasant odors from the kitchen air;
• ensure the safety of the gas appliance;
• maintain comfortable conditions in the chef's work area.

When gas is burned and food is cooked, harmful substances are released into the air, which must be eliminated in a timely manner. Carbon dioxide and carbon monoxide appear when the stove is turned on. An increased concentration of substances worsens health, can cause poisoning. The process of frying food at high temperatures is accompanied by the release of carcinogens, which accumulate in the body and lead to cancer.

Cooking is accompanied by the release of various odors, which, spreading through the rooms, linger for a long time, soaking the upholstery of furniture and clothes. The aromas of several dishes, when mixed, can ruin your appetite. The hood will significantly reduce the concentration of odors in the apartment.

The leakage of natural gas from an extinguished or not switched off burner can not always be felt in a timely manner, especially at the time of cooking. The hood will protect against explosion for some time and will help to detect a malfunction in a timely manner.

Simultaneous cooking of several dishes causes heating of the air near the stove, hot steam creates inconvenience. Timely heat dissipation makes work more pleasant. Built-in lights make it easy to work at dusk or at night.

How the devices work

Based on the principles of operation of exhaust devices, varieties are distinguished:

• diverting;
• recirculating;
• universal.

Devices of the first type remove harmful substances into the ventilation duct by means of traction or using a fan. Separate mines are being built in apartment buildings. The channels do not intersect with the hoods from the bathrooms and living rooms. Among all types of cleaners, the discharge models have the highest performance.

The equipment works in a passive or active mode - with the fan on or due to natural circulation. This is convenient, since the air in the kitchen is constantly being renewed.

According to the current sanitary and fire safety standards, it is not allowed to install hoods with a compulsory principle of operation in every house. Before purchasing an exhaust hood with a fan, you should consult with the management company.

During the control inspection and maintenance of the gas stove, employees of the gas service have the right to issue a prescription for dismantling the device with forced circulation. This requirement does not apply to apartments on the upper floors.

Recirculation models are equipped with filters. The air passing through the device is cleaned of harmful impurities.Connection to the ventilation duct of the entrance is not provided. An important disadvantage of recirculation models is the need to replace or flush the filter elements, which entails some operating costs.

Filters of the first stage, catching fat, are non-woven, paper, padding polyester - they are disposable and must be replaced 5-6 times a year. Acrylic options can be washed several times in the dishwasher. The service life is limited to 1.5 - 2 years and depends on the intensity of use. Carbon filter elements are installed, as a rule, in universal devices working for air removal and filtration.

Combined devices work in two modes at the same time, or it is possible to use one of them. The devices are powerful and provide maximum air purification.

Criterias of choice

Individual needs are assessed before purchasing the hoods. The choice is influenced by:

• the geometric dimensions of the hob;
• dome shape and installation method;
• dimensions of kitchen furniture;
• the presence of ventilation shafts into which it is permissible to connect the hood;
• specifications;
• additional functions.

Each of the parameters is taken into account individually.

Dimensions (edit)

The width and depth of the hood should be equal to or slightly larger than the size of the gas stove. In this case, the rising hot air and steam will be completely removed from the room or filtered.

Taking into account the dimensions of kitchen furniture items is important for aesthetic perception. Hoods are produced in various models - this makes it easier to choose.

If the use of hoods with fans is prohibited in the house, you will have to install a recirculation model.

An important technical characteristic is the performance of the electric motor.

Code of Practice 54.13330.2016 requires a minimum air exchange of 100 m3 / h for rooms with a gas stove - you should choose a hood model with a suitable fan.

The form

According to the external form, the models are:

• domed;
• flat;
• T-shaped;
• telescopic;
• inclined;
• corner.

The dome version takes up more space, but completely covers the hob.

Recirculation hoods are most often flat.

Telescopic models allow you to increase the collection area of ​​polluted air due to the pull-out section. When folded, the models are perceived as an interior detail.

A variety of telescopic hoods are domino models, which are cut vertically into the tabletop and pulled out as needed.

Inclined views of the device are convenient in operation. The leading edge is raised up so as not to interfere with food preparation.

Placement method

The most common are wall-mounted hoods, which are mounted on the wall above the gas stove.

Island models are called models that are located in the center of the room.

Corner options are convenient in small kitchens when the layout suggests it.

Additional functionality

In addition to performance, when buying, pay attention to other characteristics:

• the presence of illumination of the working area;
• type of control, mechanical or electronic;
• fan noise level;
• body materials.

Manual control with keys or buttons is more reliable. The electronic device allows you to select the required operating modes, for example, you can turn on the timer and the device will turn itself off. This allows you to safely leave the house or go to bed without worrying about the fan running continuously.

Usually, when buying, you can include your favorite model in the window. In the passport of the device, the noise level is indicated, which should not exceed 35 dB. It is uncomfortable to be in a room with a loudly operating device.

Pay attention to what the body of the device is made of. The metal covered with enamel can be easily cleaned of dirt and dust, you can wash it with any household product. The models are distinguished by their low cost. Stainless steel hoods are attractive in appearance, and the thickness and elasticity of the material allows you to create cases of various shapes. As the operation progresses, you will need to clean it, as the surface gradually darkens. The cost is higher than that of painted products. Copper, brass, bronze are used in design projects, hoods are sold at a high price. You will need to keep the surface in good condition with special cleaning agents.

The toughened glass best meets the hygienic requirements. Combinations with non-ferrous metals distinguish models of the highest price category.

Plastic housings are used in recirculation hoods. The material is susceptible to deformation from heating.

General installation rules

Before installation, you should familiarize yourself with the manufacturer's recommendations, which are necessarily attached to the product passport.

There are several general rules:

• the minimum distance from the hob to the lower edge of the hood is 65 cm;
• it is optimal to retreat 75-80 cm, which will eliminate head bumps during cooking;
• air ducts use a constant shape or corrugated, which can be bent;
• there are no strict requirements for the location of air ducts, they can be hidden in cabinets;
• when buying, pay attention to the geometry of the outlet pipe, the channel must correspond to it.

The industry produces plastic air ducts. Before buying, it is important to find out if it is intended for transporting hot gases.

Do not underestimate the mounting height, especially for models with filters. At a close distance, the electric motor overheats, which reduces its resource. Filters heavily contaminated with oil can ignite from high temperatures.

It is undesirable to increase the distance - the suction power may not be enough for high-quality operation of the device.

It should be borne in mind that during operation, corrugated channels can emit increased noise from vibration. If the hood is located far from the entrance to the ventilation shaft, it is better to use air ducts of a permanent configuration.

Step by step instructions

Each type of hood has features in the installation, the observance of which allows you to use the device most efficiently.

Installation of recirculation models

Installation of hoods that do not require air duct connection is the simplest.

The work algorithm is as follows:

1. Measure and mark on the wall the location of the lower cut of the hood.
2. Draw the vertical axis of the center of the device.
3. Places where holes are drilled are marked using a template or by applying a hood to the desired location.
4. Drill holes for fasteners.
5. Dowels or anchors are mounted.
6. The configuration of the upper holes, as a rule, implies hanging the hood on the screws already screwed in, hang the device.
7. Screw in additional lower self-tapping screws (anchor nuts).
8. Mount an electrical outlet.
9. Install a removable filter.

The installation is completed with a trial run and testing in all provided modes.

The installation order does not change for tilt or slide models.

Installation and connection of diverter type models

For diverting models, the algorithm of operation is approximately the same as described above. After completing clause 8 of the previous algorithm, the air ducts are connected.

For this:

1. They carry out the necessary measurements, draw a diagram.
2. Parts of the required size, knees, turns are selected.
3. For the outlet of the duct, a lattice is purchased.
4. The pipe is connected to the exhaust pipe and gradually mounted towards the ventilation shaft.
5. The ducts are fixed to the wall using clamps of a suitable size.

When installing the duct, do not allow joints at sharp angles - this causes turbulence and backflow of air. It is taken into account that each turn reduces productivity by about 10%.

When buying pipes of constant cross-section (not corrugated), preference is given to round products. They are less dust and dirt than rectangular ones.

To remove air from the kitchen, it is forbidden to use channels designed for ventilation of bathrooms and living rooms. If there is no exact information about the purpose of the mines, contact the specialists of the management company.

Placing island fixtures

The most difficult thing is to correctly install the models located in the center of the kitchen - even small inaccuracies in the layout and inaccurate installation can ruin the attractive appearance of the structure.

Before installation, you must carefully study the features of the model and the recommendations of the manufacturers. The devices are mounted to the ceiling, therefore, if it is suspended, they provide for the installation of extension brackets.

The general installation principle is as follows:

1. Using a laser level or a plumb line, the center of the future hood on the ceiling is carefully calibrated.
2. Mount the mounting bracket, it is important to choose fittings that can withstand the weight of the future structure.
3. Electric wires are brought to the installation site.
4. The guides for the hood box are attached to the bracket, having previously accurately calculated their length.
5. Position and screw the fan assembly to the bracket.
6. Connect the fan and the control unit to the network.
7. A decorative casing is put on and fixed on the guides.
8. Install the filter unit.

The installation is completed by testing in all provided modes. If necessary, the rattling and other identified deficiencies are eliminated.

Features of installation in private houses

Any type of device can be installed in individual housing.

If the ventilation ducts are not provided for by the project, a hole is cut into the street or under the roof.

The rest of the installation process is the same as in the apartment. At the final stage, it is important to carry out hydro and thermal insulation of the duct outlet points.

How to bypass a gas pipe

In old houses, a situation is common when a gas pipe interferes with hanging the hood above the stove.

There are several ways to solve the problem:

1. Contact the gas supply organization with a request to move the pipe. The option is long and not always feasible due to the existing rules. Costs can range from 10,000 rubles, depending on the region.
2. Move the gas stove using a hose of the required length.
3. Attach wooden blocks of the required thickness to the wall above and below the pipe. Carry out installation on a prepared base. It is necessary to be prepared for the fact that claims may be from the gas supplying organization.
4. Use suitable brackets. A rubber gasket under the hood will significantly reduce the noise from vibration of the switched on electric motor.

Installing the hood refers to work that you can do yourself - no special skills and abilities are required. It is important to follow the installation rules, then the effect will be noticeable immediately.