Pleasant aromas and steam during the preparation of various dishes settle on the walls, stove and kitchen furniture with a greasy coating and a gray film. To clean the kitchen air, it is necessary to correctly select the distance from the stove to the hood, as well as the power of the ventilation equipment according to the standards. All steam from pots and pans should enter the hood air filter or go outside. According to standards, the air in the kitchen should be renewed 10–12 times per hour. If the equipment has sufficient power, there will be no unpleasant odors throughout the apartment. You will need to clean the kitchen area much less frequently.
Factors influencing the distance between the stove and the hood
The hood located above the stove should draw in all the air and steam and not be heated by the burners and pots and pans standing on them. The distance from the slab is determined by calculation and experiment. The main factors influencing the right choice:
- unit power;
- principle of operation of the hood;
- hob type.
Distance between hood and gas panel according to GOST it is 65–85 centimeters. Above the induction stove, the ventilation equipment can be lowered lower, to a distance of 60–80 cm.
A color scheme
Horizontal appliances, domed and flat, must hang exactly in the center of the stove surface and be at least as wide as the hob.
The width of the lower plane of the air intake is determined by the power of the air-purifying equipment fans. The dimensions of the slab must be taken into account. The vertical deviation from right angles can be within 5–10° to the side of the air intake.
A large ventilation device will interfere with cooking. With lower parameters, there will be no vapor capture on the sides, as a result of which the vapor will partially remain in the room. Or the fans will have to constantly operate at maximum loads. Therefore, the hood should be selected with the required power for the given volume of the kitchen.
Electric stove
Standards for hood power relative to the volume of the kitchen and minimum distance it above the hob is designed to ensure maximum absorption by the ventilation system equipment of the air that rises above the stove during cooking.
At the same time, the air purifying device should not be heated by the burners. If you hang the hood over gas stove low, the heat from the burners will be added to the heat generated by the ventilation mechanism during operation, so the equipment will quickly overheat and fail.
The design of kitchen hoods also influences the minimum distance. Vertical and inclined ventilation panels are mounted behind the stove; their distance from the upper edge of the stove is reduced to 35 cm, since the lower edge is not located directly above the burners, but is mounted behind the panel at a certain distance.
Bright hues
At what distance should the hood be installed?
The sanitary standard and the technical passport for the equipment determine the distance from the gas stove to the hood - at least 65 cm. This is the manufacturer’s standard. The maximum distance from the gas stove to the cabinet with built-in ventilation is 85 cm, but it is a recommendation. It can be increased by installing more powerful equipment, and thereby ensure complete air purification.
The minimum distance from the hood to the stove with electric burners, without an open flame, is 5 cm less. Filtration method: recirculation or with outlet to ventilation, this does not affect the established norms of the lower horizontal.
Read also: A 40-inch diagonal is how many cm a TV is: width and height in centimeters
Built-in horizontal models are installed at a distance specified for wall-mounted and hanging models, namely: from electric stoves - at least 60 cm, from gas stoves - 65 cm.
Air filter location diagram according to standards
It is necessary to take into account
- power;
- Type of equipment;
- location of the air intake plane – inclined or horizontal;
- type of stove;
- the height of the hostess.
At what distance to hang a kitchen air filter above the stove depends on the power of the hood. When installing low-power circulation-type models, maintain the minimum permissible distance. They are suitable for kitchens up to 10 m2.
Basic rules and regulations
Fireplace hoods can be hung higher than recommended by standards. Such models are characterized by a large air intake area, high performance and power. They have 4 fans that run air flow through filters and output it to exhaust duct. At the same time, the cleaning of a kitchen of any size and the dining room combined with it is carried out efficiently. Not only above the stove, but also from the entire room, air with soot, grease and steam is discharged into the exhaust system.
Recirculation-type installations filter air masses and return them in purified form back to the kitchen. They are suitable for small rooms, in which it is difficult to provide air flow from the outside. In fact, only mechanical impurities and water remain on the filters. Carbon dioxide comes back. Oxygen levels in the air remain low.
Before choosing an air filter model, you should consider the size of the kitchen. It is also necessary to correctly determine its location. It is important at what distance from the stove the ventilation equipment is installed. The power of the device is determined by the volume of air in the room where it is installed.
Options and standards
The location of the bottom horizontal of the device is selected to be minimal for the existing hob.
Read also: A 42-inch diagonal is how many cm is a TV: width and height values
The volume of a large room requires powerful equipment. The ventilation device in the kitchen is hung at the maximum distance from the stove surface recommended in technical passport this model.
Standard sizes
For ease of use of the equipment, the installation of a hood in the kitchen is carried out taking into account the height of the housewife. The front edge of the panel should not touch the head when a person leans over food being prepared on the stove. You shouldn’t hang the hood very high above the stove; it’s enough at the level of a raised half-bent arm. While cooking, you can easily switch ventilation modes without distraction.
Ergonomics experts recommend positioning the hood taking into account the height of the person who stands most near the stove. They calculated the most convenient size filter device from the floor of the bottom panel at a distance of: human height minus 35 cm. The standards established by GOST should not be violated; they are based on safe work equipment.
Watch a useful video on this topic below.
Calculation of the minimum required exhaust power
Before purchasing a new device for air purification in the kitchen, you should make some measurements and calculations in order to know exactly what power equipment will be able to efficiently purify the air in the kitchen.
Before purchasing a kitchen hood, it is necessary to accurately determine the volume of air in the ventilated room. Then make the calculation yourself. You can contact the seller with these measurements. It will determine the performance of the equipment. The minimum required power is determined by the formula:
Pb = Vk × 12 × 1.3 = (a × b × h) × 12 × 1.3
- Vk = (a × b × h) – kitchen volume;
- The air must be completely changed 12 times in 1 hour;
- 1.3 – actual power coefficient, it takes into account power losses when air passes through ventilation holes, filters and pipeline bends;
- Pb – design hood power.
All necessary measurements and power calculations can be made independently. It is enough to determine the length and width of the kitchen, as well as its height, using a tape measure. The numbers are written in meters. Then calculations are made using a simple calculator. Multiplying three numbers, you get a volume of cubic meters(m 3). When multiplied by other coefficients, the resulting power is m 3 /hour.
Scheme and drawing
Model performance does not always match estimates exactly. The nearest higher value should be selected. A less powerful device costs less. But it will constantly work at maximum load, as a result of which it can quickly fail. There is also a possibility that the air will not be completely purified, and then odors will penetrate into the rooms.
How to determine the optimal distance from the stove to the hood
When arranging a kitchen space Special attention it is necessary to pay attention to the distance from the stove to the hood The state of clean air, free from soot and unnecessary odors, directly depends on the operation of the hood. That is why it is so important to choose it correctly and determine the correct distance from the hob to the device itself. A properly chosen height affects not only the overall efficiency of ventilation, but also ensures the safety of the system as a whole.
Optimal hood height above a gas stove according to the standard
The absence of a hood above the stove or its incorrect location can significantly complicate the process of cooking and create some discomfort while in the room. Proper installation of the exhaust device according to the standard will ensure the necessary air circulation and comfort for the housewife in the kitchen. At what distance from the stove should the hood hang?
It is best to place the hood above a gas stove, taking into account certain standards
- Gas stoves with direct hood should have a distance between each other of 75-85 cm;
- If the hood is inclined, then the gap between its lower part and gas stove must be a minimum of 55 and a maximum of 65 cm;
- An electric oven should have a distance of 65-75 cm to the direct hood;
- In the case of an inclined hood, a stove with electric burners can be located at a distance of 35-45 cm from its lower part.
This range was not chosen by chance and you cannot arbitrarily reduce the recommended minimum distance between the hood and the stove. True, you can still increase it a little if necessary.
Reducing the distance can make it more difficult for the cook, who may constantly hit his head on the device. In addition, the hood can become very hot, which jeopardizes its operation. That is why it is extremely undesirable to reduce the distance recommended by GOST.
When choosing the height of the hood above the stove, you should also consider:
- Power and design of the device;
- Configuration and interior of the room;
- The height of the person who spends the most time at the stove.
Weak hoods, as a rule, should be hung at a level not exceeding 75 cm from the stove, but powerful ones modern installations You can mount it higher if necessary.
Typically, each hood is accompanied by instructions that detail all the recommended distances and installation parameters.
What affects the distance from the gas stove to the hood
When installing the hood, one of the most important factors, worthy of attention is the maximum and minimum height of its location from the border of the hob. Usually, in order to understand at what distance the hood should be hung, you need to study the instructions. If it is not there, you must comply with some conditions for installing the device.
The distance from the stove to the bottom of the hood directly depends on:
- Convenience of cooking - this means that the person preparing food should have free access to all the pots on the stove and not hit his head on the hood;
- Safety - the distance should be such as to prevent spontaneous combustion of anything or deformation of the material (a safe distance is considered to be 65-70 cm);
- The ability of the device to extract air from the most contaminated layers - in other words, the extraction power.
The dimensions of the hood also matter. For example, the width of the device should not be less than the width of a gas or electric stove, otherwise it will not be able to clean the entire surface of the stove from contaminated air.
The type of hood also plays a role. Above an electric stove, a lower position of the hood is allowed than above a gas one, and it is also taken into account exactly how the device is located - with an angle or straight.
If the hood hangs at an angle, its lower edge usually drops slightly below the recommended distances. For a gas stove the gap is 55 cm, and for an electric stove it is 35 cm.
Standard installation of a hood over a gas stove and types of devices
A standard hood is a design that purifies the air from various fumes, gas combustion products, smoke, and various odors that appear during cooking.
According to the principle of operation, there are two types of hoods:
- Flow-through - remove air outside the room, but at the same time require a fresh supply of air from outside;
- Recirculation - purify the air on site, passing it through special filters and “returning” it to the kitchen.
Flow hoods work faster, but require a ventilation system, unlike recirculation hoods.
As a rule, its correct installation depends on the type of hood
Based on installation conditions, the hood can be:
- Hanging - usually has flat view and is installed at the bottom of the wall cabinet above the hob;
- Dome - installed after placing the cabinets, can be decorated to suit a variety of styles;
- Built-in - its body is usually located inside the cabinet above the tile, optimal height determined by recommended standards;
- Corner - may be needed where the stove is moved to the end of the wall and the kitchen hood has to be placed in the corner of the room;
- Wall-mounted (inclined) – mounted directly on the wall, the distance is measured from the slab to the bottom border of the hood;
- Island - this type can be found in large kitchens of establishments Catering, where the hood is attached to the ceiling in the center of the room.
We should also talk about built-in exhaust devices. There are models that are embedded into the surface of the countertop, behind the stove. This type can also be called tabletop and in this case the gap between the stove, table and hood is reduced to almost a minimum.
There are also special glass-ceramic hobs with an induction cooking system and a built-in hood. This type of stove is very convenient to use, but, unfortunately, it is very expensive.
The hood can also be installed, choosing according to the design. This means that it can be stationary, removable or tilted, that is, introduced into the air purification zone when necessary.
Before hanging the hood, you must very carefully select the place where it will be located. All necessary communications or sewer outlets must be available.
You can hang the hood over a gas stove yourself if you carefully read the step-by-step instructions
For successful subsequent operation of the device, the following rules must be observed when installing it:
- The size of the hood must correspond to the size of the stove itself in order to have access to all contaminated layers of air;
- The distance from the device to the stove should not contradict the measures fire safety and the type of stove (the standard is usually indicated in the technical data sheet of the hood);
- The socket used to connect the hood to power should not be located above the tile;
- The air outlet pipe must have minimal amount bends.
When connecting the hood, you should also install a special protective unit in the power supply of the device, which can turn off the equipment in the event of an emergency.
What should be the distance from the stove to the hood (video)
Buying a range hood is a responsible matter, because the convenience of cooking and a comfortable stay in the kitchen in general depends on the operation of this device. It is best to entrust the installation of this equipment to specialists so that they can efficiently connect all the necessary communications and provide everything necessary for successful work hoods.
The hood is a devoted ally of the housewife in the fight for cleanliness and fresh air not only in the kitchen, but throughout the entire apartment. It greatly facilitates and shortens the cleaning process. This device protects surfaces from grease splashes and allows you to remove combustion products, unpleasant odors, and fumes from the room. The degree of efficiency of the device, first of all, depends on its design features and technical characteristics. Illiterate installation can significantly reduce air suction rates. It is important to correctly position the device relative to the source of pollution, and for this you need to know at what height to hang the hood above the stove.
Basic functions of a kitchen hood
The main purpose of the device is to remove or filter polluted air. Like a vacuum cleaner, the hood draws it in and sends it into the ventilation shaft, or passes it through filters that trap unwanted particles.
Products released during combustion natural gas, pose a danger to human health. Therefore, the key task of the hood is to remove precisely these substances.
The device provides an influx of fresh air into the room and maintains a normal atmosphere. Getting rid of carcinogens – no less important function this device.
The hood prevents grease and soot from spreading throughout the kitchen, saving cleaning products, time and effort for the housewife, and eliminating the painstaking daily cleaning of surfaces.
What determines the location of the hood
Choosing the right height for installation ventilation system– an indispensable condition for its effective operation. When determining this parameter, the following are taken into account:
- manufacturer's recommendations;
- dimensions and power of the device;
- architectural features of the premises;
- distance from the hood to the ventilation hole;
- type of hob;
- regulated standards for the placement of hoods.
Deviation from generally accepted norms is fraught with undesirable consequences. At an excessively large distance, the hood will not be able to actively capture air and fat particles, which will settle everywhere. The device will run idle and it will take much longer to clean the air.
It is also undesirable to place the hood too close to the hob. It is necessary to leave a gap of at least the minimum recommended by the standards. Failure to comply with this condition may result in:
- inconvenience in work - if the hood hangs too low, it is difficult for the cook to inspect the contents of the pans and control the cooking process. There is a high probability of frequently hitting the device with your head and causing injury;
- reduction of service life - lack of distance between the exhaust equipment and the stove causes overheating of the device and its rapid failure;
- fire - there is a danger of ignition of fat accumulated on the filter elements;
- decrease in efficiency - the rate of filter clogging increases, due to which derivatives of combustion and cooking will settle on all surfaces.
Types of kitchen hoods
Devices are classified according to the following criteria:
- type of cleaning;
- location.
Based on the type of cleaning, the following groups of hoods are distinguished:
- recirculation - remove fat, soot and odors through filtration. Purified air is returned to the room, and particles harmful to health remain in the filter elements. The disadvantage of such devices is the need to regularly replace filters, but the advantage is the relative ease of installation and small dimensions;
- flow-through - they capture polluted air and send it to ventilation, through which it is discharged outside the house. Such devices are equipped with a pipe leading into vent. The pipe can be metal or plastic with a square or round. Often smooth pipe successfully replaces corrugated;
Having all the advantages of a smooth air duct, corrugated air duct has a unique advantage. It bends, and therefore it is easy to lay it along any trajectory without sharp bends or adapters. No need for construction complex system made from individual sections of pipe and fittings makes the corrugated option attractive for those who decide to do the installation themselves.
- combined - combine the functionality of the two previous options. They have two operating modes - flow and recirculation. Switching from one mode to another is done as needed.
The following classification of hoods indicates their location depending on where the stove is located.
The following options exist:
- Corner - used if the slab is in the corner.
- Wall-mounted - the most widely used, can be mounted independently, under a cabinet, or mounted on a lower shelf.
- Island - attached to the ceiling above the stove, located in the center of the spacious kitchen.
- Built-in - a cabinet acts as a housing that hides the device. Mounted in place of the bottom shelf.
Hoods also differ according to the type of housing:
- dome - independent devices, dome-shaped. They have great power and impressive dimensions. Always equipped with an air vent;
- flat – exhaust options, often equipped with electronic control;
- inclined - the suction plane of such devices is located under obtuse angle in relation to the hob. They do not obstruct the passage of light and do not cast a shadow on the slab.
General requirements, rules and standards for installing hoods
Exist general rules, which should be followed during the installation of any exhaust systems. The main thing is compliance with the manufacturer’s requirements and established standards. The instructions for any model always contain recommendations on the optimal distance to the stove. As a rule, you can vary these parameters within 10 cm depending on the owner’s height or characteristics furniture design. The standards were developed to prevent fires to maintain fire safety. The width of the hood must match the width of the hob. If the suction surface less area stove, effective air purification will not occur.
Installation features and height above the gas stove
Of all types of stoves, it is the gas stove that puts forward the most serious requirements for the installation and placement of the hood. It is unacceptable to ignore standard recommendations, since their failure to comply creates a real threat to the lives of both the individual family and the other inhabitants of the building.
Let's start with the fact that using a gas stove implies the presence of an open fire in the room. Any devices and structures placed above them must be removed from the surface at a distance of 75-85 cm.
When installing the air duct, you must remember that it is unacceptable to completely close the ventilation hole. Gas accumulated in the room as a result of an accident or improper handling of the stove must be able to escape freely. If a separate exit is in ventilation duct is not provided, the existing one should be divided into two parts. This is achieved by installing a special grille divided into two sections. In one part there is a hole for the pipe, the second has standard jumpers.
Installation features and height above electric and induction hobs
Requirements for installing hoods above electrical and induction cookers somewhat softer. This mainly relates to recommendations for placing the device at a certain height above the stove. In this case, it is allowed to install the hood a little lower - at a distance of 65-75 cm.
Installation features and height of inclined hood
Inclined hoods are indispensable in miniature rooms, where the issue of maximizing the preservation of free space is acute. When installing an inclined hood over a gas stove, the requirements are slightly different. The bottom edge of the surface should be at a distance of 55-65 cm from gas oven. You only need to step back 35-45 cm from an induction or electric stove.
Self-installation
A hood is not the most complex device, so with a little experience and a set necessary tools, it is quite possible to install it yourself. Self-installation – a great opportunity save on specialist services.
Installation of a hood attached to the bottom of the cabinet
Hanging models are attached directly to the bottom shelf of the cabinet. Installation is simple, installation is carried out using self-tapping screws and a screwdriver. Since connecting the air duct to the recirculating device is not required, the installation ends by connecting it to the electrical network.
Installation of a hood in a wall cabinet
Installing a hood into a cabinet yourself requires certain carpentry skills. For a new set, the device is purchased at the furniture design stage. In order for it to fit into an already used hanging cabinet, it is necessary that the dimensions of the hood correspond to the internal dimensions of the case.
To work you will need:
- jigsaw, you can also use a manual one;
- hacksaw for wood;
- pencil;
- screwdriver (preferably a screwdriver);
- awl;
- construction angle, tape measure;
- clamps.
Installation steps:
- First of all, you need to free the cabinets from the facades, and not only the specific cabinet for the hood, but also the adjacent drawers. Next, remove the cabinet and fasten the adjacent cases together with clamps. Do not skip this point - the boxes may fall and be damaged.
- We unscrew the bottom shelf and apply it to the upper plane of the exhaust device. We outline the outline of the air duct and the holes for the outlet of the wire with a plug to connect the device to the network. Cut out the marked holes.
- We insert the hood into the housing and mark the upper boundaries of the device. We fasten the bottom shelf along the marked lines. We drill 4 holes in it.
You can ensure exact alignment of the fastening points with the holes using a stencil.
We fix the hood inside the cabinet and install the air duct. We use it to connect the ventilation hole and the system. We install shelves and fronts. It is worth checking the functionality of the equipment before installing the facades.
Installation of a hood with an air duct
The installation procedure for such a hood includes:
- fixing the hood;
- development of air duct and electrical wiring diagrams;
- box fitting;
- installation of the box using sealant.
The air duct is assembled from plastic box or made of aluminum corrugation. The first option is stronger, more aesthetically pleasing and more reliable. Therefore, it is worth giving preference to it. Plastic is easy to saw and joined with special elements. Additional strength is added to the joints using sealant. Corrugation also has its advantages - its flexibility allows you to lay the air duct along a curved path.
Criteria and rules for choosing a hood
When choosing a hood, be sure to pay attention not only appearance devices, but also significant characteristics, such as its size, power, noise level. The type of control is also important, additional “bonuses” from the manufacturer are added useful functions.
Size
The size of the hood must correspond to the dimensions of the hob and in no case should the device be smaller. The suction plane must cover the entire surface of the plate. Only in this case can the device operate efficiently. If you hang a hood 50 cm above a stove 60 cm wide or more, good result It's not worth the wait. The device will not cope with the removal of odors and grease, and the money will be wasted.
Power
The performance of the hood, its power, depends on the power of the fans built into it. More often, systems are equipped with one or two air exhaust devices. Fans can operate at different speeds. Typically, hoods are equipped with two or four modes. Productivity is determined by the amount of air purified per hour. IN different models this figure varies between 200 -700 m3/h. There are expensive hoods, the power of which reaches 1300 m3/h. According to GOST 26813-99 productivity ventilation unit above the hob should not be less than 200 m3/h.
High power makes it possible to quickly and effectively remove grease and unpleasant odors. In emergency situations - food has burned, milk has run out - this ability will be very useful. But there is no point in forcing the hood to constantly work in this mode. At maximum speed, the device makes a lot of noise, which only gets in the way. Therefore, fans with medium power are quite sufficient for normal cooking or heating of food.
You should also focus on the dimensions of the room. The amount of air that needs to be renewed 10 to 12 times per hour depends on them. To calculate this indicator, you need to calculate the volume of the kitchen, subtract from it the volume of the furniture present and multiply by 10. The resulting value will correspond to the optimal power level of the hood.
Control type
Manufacturers offer a choice of equipment with three control panel options.
Exist:
- touch panels - the device is incredibly comfortable to use. Simply touch your finger to the intended area and the device will begin performing the task. The LED indicates that work has started;
- panels with slider-type controls - in order to turn on the hood and adjust the power level, you need to move the slider;
- panels equipped with buttons - each button is responsible for a particular task.
Additional functions
The functionality of the hood can be expanded. Additional features facilitate equipment management and make it more comfortable for the user. Of course, expanding the “arsenal” of capabilities cannot but affect the final price of the device.
There are several types of additional functions:
- Responsible for convenient use of the device - remote control remote control, multi-stage power regulators, touch panel, display showing operating mode. All these features make operating the hood simple and enjoyable.
- Additional “bonuses” not involved in air removal - built-in TV, integrated recipe book, computer, Internet access. The built-in timer will allow you not to think about the need to turn off the hood yourself after certain time. Faber Imago even provides the ability to keep an eye on children in another room using video telephony.
- Parts for automating the operation of the device - the presence of sensors that detect the presence of smoke and odors, a programming function - to set a shutdown delay or automatically stop operation after intensive removal of fumes and odors.
- Illuminate countertops and stoves with built-in halogen or LED lamps. Access to lighting control makes it possible to use it as a decorative component of the interior.
- Continuous operation mode according to a given program - allows you to constantly maintain a comfortable microclimate in the room.
Conclusion
The variety of models will allow everyone to choose the optimal hood in accordance with their needs and financial capabilities.
An exhaust device is a necessary element of the kitchen. It is used for room ventilation. During the cooking process, food may burn and then unpleasant odors will appear. Removing them is not difficult with the help of modern technology.
If you decide to get a hood, important point It will be correct to calculate the distance from it to the stove so that odors are removed as efficiently as possible.
Standards
To ensure the required air purity in the room, which is comfortable for a person, ventilation must be installed in accordance with all accepted standards and standards. For different types of slabs, there are two types of hoods: inclined and regular (straight). The recommended distance from the hood to the stove directly depends on the type of kitchen panel and the design features of the equipment for a particular kitchen.
The minimum distance above the countertop of a gas stove for a conventional hood is seventy-five centimeters, above an electric stove - sixty-five centimeters. If we consider an inclined hood, the indicators will be fifty-five centimeters for gas and thirty-five centimeters for inclined ventilation.
The distance norm is chosen by the person who will cook, so it may also depend on the height of the owner, the type of kitchen, and the height of the ceilings.
It is allowed to change the height of the hood by 5-10 centimeters from the minimum distance. The correct choice of distance between the exhaust device and the countertop of the stove affects the operating efficiency, operational safety and long-term use of this household appliance. After all, incorrect installation of the device below the required level entails heating and, consequently, failure of the unit.
Based on the type of design, hoods are divided into three types:
- flow-through;
- circulation;
- mixed.
The process of operating air intakes of a flow-through design is as follows. The air duct pipes are connected to the general house ventilation system, polluted air exits through the pipes into the general ventilation, and clean and pleasant air enters the room where food is prepared through open doors and windows. Circulation models are not connected to the general house system; in them, the air is purified in the internal filter system of the unit and returned to the kitchen.
This device is equipped with a high-performance motor, which increases the efficiency of the unit. Such structures are usually installed in old houses or in kitchens where the hob countertop is located away from the ventilation duct.
Mixed exhaust devices have design features previous types, they have an air duct that works in conjunction with an air filtration system. This ventilation system is convenient to use in winter to keep the kitchen and apartment warm. The disadvantage of such an air intake is that when the device is turned off, due to its design it blocks the ventilation. Therefore, there is a forced need to open windows for ventilation. Also, due to the powerful motor, the installation is very noisy during use, the same applies to circulation models.
How do equipment dimensions affect?
The dimensions of the kitchen ventilation are different; this should be taken into account when choosing a hood. It should be installed after measurements of the kitchen itself.
Necessary:
- calculate the size of the room;
- determine the position of interior items in the kitchen;
- measure the dimensions of the slab;
- take into account the height of everyone living in the apartment;
- select the desired type of ventilation and efficiency;
- consider where the device will be installed.
Hoods built into any piece of furniture are installed directly above a gas or electric stove to ensure maximum efficiency work. Such models are located inside the kitchen interior object.
Such a ventilation system is invisible in the kitchen; visually you can only see the surface into which the air enters. From various types For built-in ventilation, telescopic ones are especially popular. Such hoods have a powerful motor with a maximum capacity of 1000 cubic meters. m/hour. To install models of this type, you will need a wall cabinet without a bottom. The dimensions of the cabinet and ventilation must match.
When installing ductwork, it is recommended to avoid unnecessary bends in the pipe to avoid loss of power. Need to install check valves exhaust ventilation so that contaminated air does not get back into the room. Installation of this type of hood begins with the assembly of the cabinet or box. The box is made of wood. The box is assembled as follows: the top of the box and its side parts are fastened together immediately, and after that the dimensions of the box and the hood are compared. Then the lower part of the cabinet is installed, where a hole is cut for the air duct. For silent operation, it is recommended to use plastic air ducts.
What to consider during installation?
If you have a compact cooking space, then by purchasing a large ventilation structure, you risk creating inconvenience for yourself and your family. In this case, it would be advisable to take a built-in hood and install it in a cabinet on the wall, if there is one above the hob, or in another element of the kitchen interior. The main thing is that it is located above the stove top. The size of the air intake should be selected to match the size of the slab over which it will be installed. If the dimensions are smaller, then the air intake will not be complete, therefore, the air will not be cleaned. But if the air intake device is slightly larger than the stove, then there is nothing to worry about, it’s even better.
Dimensions and characteristics affect the height of the exhaust device above the stove. Low power systems should be installed at a height of at least seventy-five centimeters. If the air intake capacity exceeds five hundred and fifty cubic meters. m/hour, then the distance from the cooking surface to the edge of the device should be increased.
The angle of ventilation will also affect the height above the stove. If it is equal to zero, then no changes in height need to be made. But if an angle appears, then the distance from the lower edge of the exhaust device to the surface of the slab should be about sixty centimeters. Exhaust installation works on a stove where the temperature reaches high values. Due to the large dimensions and not correct installation may accumulate on the hood greasy spots, then it will become polluted on its own. You should be aware that dirt and stains are highly flammable and therefore incorrect installation If the hood is dirty, a fire may occur.
Ventilation, like any electrical appliance, needs nutrition. When installing, you need to consider whether the outlet is blocked or not, as well as the distance to it. At the factory, when producing exhaust devices, they are equipped with a short electric cord. The most rational option is that the socket should be ten to thirty centimeters higher than the unit and offset by twenty centimeters relative to the axis of symmetry of the device. This is important because the air exhaust pipe will go directly along the axis of symmetry.
The air duct of the device has its own design; for the most efficient air intake, it must have a minimum number of right angles, and also must not be pinched anywhere or have distortions. It is necessary to clean the air duct, as it tends to become clogged. When clogged, the flow area decreases, so air does not flow in full. This reduces the efficiency and performance of the device.
Installing ventilation is a responsible task; correct installation determines how the entire system will work, its efficiency and productivity. What should you consider during installation? The first step is to decide what type of ventilation will be: circulation, flow or mixed. After this, you need to determine the type of ventilation: direct (regular), inclined or built-in. Each of them has its own installation method and its own tricks, and each of them also has its own pros and cons.
Straight hoods
Conventional hoods often have the shape of a trapezoid or rectangle. Installed above gas or electric stove. As a rule, the unit is mounted on a wall, as it has big sizes, so installing it in a closet is not an easy task. You need to pay attention to the accessibility of the outlet. The lower edge of the ventilation should be at least sixty-five centimeters above the stove and below ninety centimeters so that the efficiency of the exhaust device is not lost.
The opening for ventilation also deserves attention; not in all houses designers install openings in a way that is convenient for residents. There is a way out of the situation, this is the use of a flexible corrugated pipe or a rigid one plastic pipe for air ducts. To reduce the noise level, it is recommended to stretch the corrugation. The hood must be firmly attached to the wall; you should first prepare the wall by drilling holes in it with a hammer drill and inserting dowels. After the unit is firmly fixed, further installation of the air duct occurs.
Inclined hoods
The main thing in installing inclined ventilation is to check whether it interferes with opening wall cabinets. For small rooms, a hood measuring fifty centimeters will be sufficient. If the room is often subject to pollution or is large in area, it is recommended to install air intakes larger than eighty centimeters in size. If the hood model has an air exhaust function, then you need to additionally install ventilation pipe and seal any seams that appear.
If the unit operates autonomously without air exhaust, you will only need access to the power supply. The distance between such a hood and the hob should be more than sixty centimeters if the stove is gas, and fifty centimeters if it is an electric stove.
How to measure and install?
During operation, vibrations of the pipe are possible. To avoid its deformation, it is recommended to leave a little space between the hood pipe and the ceiling. You can install it yourself or call a professional. Installation of the ventilation system is carried out in several stages. Using a measuring tape, measure the required height from the stove to the expected start of the hood. Using a special level, draw a line parallel to the horizon. It is a height limiter at which the lower part of the air intake housing will be located.
After drawing the line, you need to find its center and draw a perpendicular straight line from it using a level- this line determines the location where the air duct will be located. Next, we measure the device and approximately compare its dimensions with the already marked lines. If the top edge of the unit rests on the ceiling, then the air duct will need to be shortened so that the air intake housing does not fall below a point where it cannot function normally.
Next, measure the distance from the bottom edge of the device to its upper mounts on the case. Let's draw perpendicular lines to the bottom horizontal line, and connect the ends of these lines to each other to make two parallel lines (top and bottom). On the upper horizontal line, measure the distance from the center, noting the location of the unit mounts. Using a drill or hammer drill, you need to drill holes in the wall, insert dowels into them, into which screws will later be screwed.
It is recommended to install the device on the wall from its upper part, after installing the top. The device should be leveled horizontally and finally secured to the wall. At the very end of the work, a corrugated pipe or plastic channel is attached to the air intake. It is recommended to hang the air intake after thoroughly preparing the kitchen, after all measuring procedures and reading the relevant documentation. At each factory, the exhaust unit is accompanied by instructions for installation and operation, which indicate the parameters for installing a specific type of device.
The functionality of home exhaust ventilation ducts almost always left much to be desired. They did not cope with their main task - extracting waste air and unpleasant odors from the kitchen area. That is why such useful and necessary devices, like hoods that acted much more efficiently than channels. When planning to install new kitchen equipment, many people wonder at what height to hang the hood? Does it matter. The performance and quality of its operation often depend on the height at which the device is mounted.
Design of a standard hood
You can more accurately imagine the location of the hood if you understand at least a little about its structure. A standard hood consists of the following elements:
- Steel body;
- Engine;
- Engine impeller;
- Filter;
- Control device.
You can set the operating modes for the hood. There are only two of them - filtration (recirculation) and air exhaust into the ventilation duct.
Types of hoods
There are four main types of kitchen hoods:
- Wall-mounted fume hoods;
- Island hoods;
- Built-in structures;
- Desktop devices.
The first type looks like an umbrella with a pipe, which is mounted on the wall where it is clearly visible. Therefore, its design should suit the interior of the kitchen. Outwardly, it is very similar to a chimney from a fireplace.
Island-type devices are most often attached to the ceiling. They are used if the kitchen interior is designed so that the stove is located in the center of the room. This model operates only in one mode, based on the air exhaust principle.
Built-in appliances are placed inside cabinets. They are hidden from view, so they do not need to be trimmed too carefully. Their technical characteristics are no worse than those of other models, but they cost a little less.
Tabletop structures are built into the hob itself. They look like another panel section. Due to the fact that this model is located in close proximity to the source of dirty air, the quality of cleaning is usually high.
How to determine the mounting height of the hood
Very often, in order to determine the optimal mounting height for the hood, it is enough to look at the instructions for this device model. Usually, it is not a specific distance that is indicated, but a range within which kitchen exhaust equipment should be placed.
In this case, you should take into account such important facts as the height of the owner of the apartment and the features of the kitchen interior. But even if the instructions are lost, there is another way out. There are standards that make it possible to more clearly determine at what height a kitchen hood should be placed above the hob or stove.
It is necessary to take into account the type of hob; each type has its own measurements. So, at what height is it recommended to hang the hood:
- It is placed above the gas stove at a height of 75-85 cm,
- Above electric stoves - at a height of 65-75 cm.
If you choose an inclined model, then the distance from its bottom to the hob should be approximately 55-65 cm for gas stoves, and about 35-45 cm for electric stoves.
The height may vary, but only within the specified 10 cm, and also depending on the power of the particular model and its technical characteristics. These limitations should not be neglected; not only the quality of the equipment’s performance depends on these indicators, but also the safety of the work, in particular fire safety.
Basic rules for installing a hood
Better operation of the device is only possible if the hood completely covers the surface of the stove. In this case, polluted air will be almost completely absorbed, and its leakage will be minimal. This is the main reason why buyers prefer models with a wider umbrella, from 60 to 90 cm. This size corresponds to the size of a standard stove or panel.
Placement height exhaust hood determined in accordance with ergonomic rules and fire safety standards. The shorter the distance from the umbrella to the hob, the better the absorption of kitchen fumes and bad smells. But at the same time, the height should not be too low, otherwise there is a high risk of damage to the ventilation system. This can happen due to overheating or even combustion of the greasy film that forms on the surface of the filter.
Therefore, for safety reasons, the minimum distance from the stove to the umbrella should be about 50-65 cm. The values may vary slightly. Often the optimal installation height for the hood is indicated in the technical data sheet. For ergonomic reasons, it should be positioned so as not to interfere with food preparation.
Hood installation options
There are several installation methods. The first involves placing an exhaust hood inside a hanging cabinet that does not have a bottom. An exhaust device is attached to the central shelf. In the same shelf, as well as in the ceiling of the cabinet, holes are made for the hose outlet.
One end of the hose is attached to the hood, and the other is inserted into the holes and out into the ventilation duct. In filtration mode, the hose is cut off as it exits the hole in the ceiling of the locker.
The built-in type of hood is mounted according to the diagram presented in the instructions for it. The model is designed for installation in a box or in a hanging cabinet.
Hood attached to the bottom of the cabinet
A hole is made for the hose in the bottom of the kitchen cabinet, as well as in the ceiling shelf. To carry out the discharge into the ventilation, the hose is brought to the very opening of the ventilation vent.
For filtration mode, it is cut off at the exit from the hole in the ceiling shelf of the cabinet. The hood is hidden behind a panel; the material for it is identical to that from which the cabinet doors are made.
Installation of a hood in a wall cabinet
A hole is made in the bottom of the cabinet, the size of which corresponds to the size of the kitchen hood. The hood island is hidden in a cabinet. Fastening is carried out using holes in the lower edge, with the help of which the hood is screwed to the bottom of the cabinet.
In the shelf located in the middle of the cabinet, as well as in the ceiling, holes are made for the passage of a hose, one edge of which is attached to the hood, and the other is inserted into the hole in the central shelf and ceiling. In the mode when the air is discharged into the ventilation vent, the hose is passed into it, and in the filtration mode, on the contrary, it is cut off near the exit from the hole.
Rules for installing a hood with an air duct
This type of installation requires an air duct of a larger diameter and without bends. Air ducts should be made of thicker foil; thin foil will rustle when air moves. A PVC boxes more flexible, their use is even more profitable. It is better if their shape is round and without bends. They have excellent sound insulation and do not resist air.
Under no circumstances should you narrow the passage for air or attach adapters that will hold it back. The required volume of air must pass in a certain period of time. If there are obstacles and narrow sections along the way, the hood motor will increase speed. Because of this, it wears out more and excess noise is created in the air duct.
When connecting the hood to the ventilation shaft, the filtration mode is used to overcome these obstacles. In order for dirty air to leave the kitchen space more effectively, there is an extreme way - to make a through hole in the wall above the surface of the hood.
Such a device can be beautifully decorated using polyvinyl chloride boxes. You can disguise a flexible air duct using such a plasterboard box.
Unfortunately, people do not always remember that fume hoods also need to be cleaned, so grease and dust accumulate on them. If the height when installing the hood does not reach 80 cm, the filter may catch fire from the open flame of the stove.
In any case, for safety reasons, the household hood must be provided with good grounding. Due to constant power surges in the network, its motor or electronic control unit may burn out. Another problem is that due to heating, spontaneous activation of the exhaust equipment may occur. Most people still decide to purchase a modern hood, which becomes one of critical devices in the kitchen, ridding the space of unpleasant odors and fumes.
