Supply valve in the Leroy wall. Supply valves

A. - There are several nuances here. It is necessary to take into account both the area of \u200b\u200bthe room and the number of people living in it. On average, for a room up to 16 square meters with up to 2 people living in it, if they are not there 24 hours a day, one Domvent valve is enough. If the room is larger / more people, or someone is constantly at home, it is better to put 2 valves. Valves are recommended to be installed in all residential premises and, if necessary, in the kitchen.

Q. - Due to what does it work?

A. - In the bathroom/toilet and in the kitchen there are ventilation shaft outlets that lead to the roof. Due to the pressure difference at the ends of the ventilation shaft, air is sucked out of the apartment. And the higher the ventilation shaft, the stronger the thrust. In the heating season, the temperature difference is also added (therefore, in summer the draft of ventilation ducts is worse than in winter). An area of low pressure is created in the apartment, and when a window is opened, micro-ventilation or a valve is installed, air enters the apartment.

Q. - What does it look like from the outside?

A. - Outside, under the tide, there is a gray round grating, only 6 cm in diameter, which is difficult to see even from the fifth floor. It can be painted in the color of the facade.

B. - When cold air from the street meets warm air in the room, condensation will form. Where will he fall? And will the fur coat grow in the pipe of the supply valve, and then flow out onto the facade in the summer?

A. - Condensation does not form on our device, and we will explain why. As you have noticed, condensate falls at the meeting point of cold and humid warm air. In this device, this place is in the air above the battery, so there will be no condensation.

The second possible location: on the surface of the device. But condensate does not form there, because. the block is washed by a warm stream from the battery and is also insulated from the inside.

The third place where condensation occurs: inside the tube - impossible, because. You yourself noticed in it there is no second condition: warm, moist air.

From the street comes only cold dry air. And since with properly functioning ventilation, the air only goes inward, we have considered all the options.

In case of incorrect installation (for example, not above the battery), turning off the heating, etc. condensation may form on the surface of the valve, which is eliminated by closing (or reducing) the damper of the indoor unit.

Q. - Do I need to install a valve in the kitchen? After all, there is also a lot of humidity.

A. - We recommend installing the Domvent ventilation valve in the kitchen, especially in small apartments, but only after installation in all living rooms. Because The natural ventilation system works as follows: fresh air enters the living quarters, passes through corridors and is removed in the kitchen or WC/bathroom. Therefore, if you install a sufficient number of valves in the rooms, the ventilation of the kitchen will increase and, accordingly, the humidity will decrease. In each case, it is better to consult a home ventilation specialist.

Q. - Is your system suitable for a private house or cottage?

A. - For a country house, our system is ideal, because. in any house there is exhaust ventilation, as well as stoves and fireplaces, which also work to remove stuffy air. For a comfortable stay, only 7-10 Domvent ventilation valves are needed per cottage (they are easily installed in one day). They do not make noise, which is especially important in suburban living, and will please with the cost in comparison with complex systems.

Q. - Is it possible to install your Home Ventilation if I live on the 1st floor and is it dangerous? Will all the exhaust gases from cars go to my apartment?

A. - On the contrary, replacing open windows with a "Home ventilation" system will make your apartment impregnable for thieves to enter.
And the DOMVENT ventilation valve will retain poplar fluff, insects, part of the dust and constantly ventilating your apartment will not allow harmful substances from furniture, building materials to accumulate in it and, which is very important for the first floor, will not allow odors and harmful substances rising from the basement to accumulate!

Q. - Explain how to calculate how many DOMVENT valves are needed for sufficient ventilation in the room?

A. - The DOMVENT ventilation valve is placed under each window of the living space (first in the rooms, then, if necessary, in the kitchen). Under normal operating conditions, one valve is enough for 15-17 m2 of a room. But if you have a lot of people or not very good natural draft (for example, the last floor), then you need to install two ventilation valves. Just keep in mind the size and power of the battery. For a one-room apartment, we recommend at least 2 domvents (or two in the room, or one in the room and one in the kitchen). If you are in doubt, send us a description of your apartment and we will help you.

Q. - Is it possible to install a ventilation system without drilling a hole in the wall?

A. - The Home Ventilation System, like any other natural ventilation system, works according to the following principle: it starts fresh outside air and removes polluted internal air into the ventilation shafts. Therefore, an influx of fresh air from outside is necessary, i.e. opening to the street is a must.
But don't let that scare you, because. Today, this operation of drilling a hole by an experienced craftsman takes 5-10 minutes (the entire installation of the Domvent ventilation valve will take about an hour) and, practically, without dust, this is permitted by law and does not pose any threat to the supporting structures.

Q. - And how to check the operation of the exhaust channels yourself? How to determine in advance whether a door valve will be needed, or can be dispensed with (and what will happen if you just do not close the door)?

A. - Ventilation check:
Open the window and door in the bathroom, apply an A4 sheet to the exhaust vent. If he "stuck", then all is well. If not, then:
We tear off a fine-mesh mesh from under the grill (which gets clogged with dust in two weeks and therefore does not let air through (and, in principle, is not needed), if there is a fan, then we buy a double grill (part of the grill, part of the place for the fan), so that the air passes into the ventilation duct and with the fan turned off.
We call the management company (ZHEK, HOA, etc.), they should fix it for free.
Compared to an open door, the door valve is more comfortable (keeps quiet), instead of it you can put simple door bars or a gap under the door of at least 1 cm.
If the door is not closed, then when you, for example, wash yourself, all the moisture (all the steam) will go into the apartment and increase the humidity in the entire apartment, which is not good for the home climate. Yes, and it will not be very comfortable for you to wash, and for the children to sleep at this time.
If there are grilles at the bottom of a closed door, air from the apartment will enter the bathroom below and wet steam will be discharged into the ventilation grill at the top, but it will not go into the apartment.
In the kitchen and toilet, the situation is similar in all respects.

Q. - The neighbors were doing repairs and blocked all the ventilation outlets for us, will your device help in this situation? There is simply nothing to breathe in the apartment!

A. - In such a situation, you need to contact the management company (or housing cooperative) serving your home with an application to eliminate the poor performance (or non-operation) of ventilation shafts. And the housing cooperative should find out the problem and fix it (not you and your neighbor, but they themselves). Otherwise, sue the HOA. Without normally working exhaust ducts, Home ventilation will be ineffective.
Our masters, coming to the installation, first of all check the operation of the exhaust ducts and, in case of poor performance, either immediately fix the problem, or, if it is not immediately possible, give recommendations on how to solve the problem.
Often there is a situation when the tenants of the house installed a ventilation grill with a mosquito net (they are sold in a set), which in 2 months is tightly clogged with dust and stops letting air through. Cleaning or removing this mesh usually solves this problem.

Q. - Will it not turn out that midges and insects will get into my apartment along with the air?

Oh no. A mosquito net is built into the design of the noise absorber, which will protect you from insects and poplar fluff. By removing the cover once a year (for example, when washing windows) with one finger (even with wet hands), you can easily remove the muffler and shake it out or even rinse it. It will take 1 minute of your time.

Q. - Tell me, can the installation of such a valve cause drafts?

O. - No, it can't! The fact is that the air volume of 13 m 3 / hour coming out of the DOMVENT ventilation valve, unlike open transoms, is completely heated on the radiator and rises warm and cannot create a draft.

The wall supply valve provides fresh air from the street without opening windows, protects against street noise and dust, and eliminates excessive humidity.

ventilation wall valve"Domvent" is installed above the battery. Thanks to this, the air in the house remains fresh and warm even in the most severe frosts, and the windows can be kept closed all the time. Recognized quality, low price and excellent technical characteristics wall valve favorably distinguish it from other supply valves.

The principle of operation of the device

Through the outer grille, outdoor air enters the noise absorber of the wall inlet damper through a plastic pipe. Due to its labyrinthine shape, it produces a coarse air filtration and ensures the absence of noise and dust in the room.

Then, flowing in the longitudinal direction to the heating radiator, the air is heated to a temperature close to room temperature. Smoothly moving the damper, you can adjust the air flow.

Advantages:

low prices;
the possibility of self-installation;
ease of operation (even a child can handle the controls);
the filter is easy to clean, its replacement is not required;
air heating (the valve works even at -50°С);
protection against drafts, noise and dust;
does not consume electricity.

1. Valve body with cover - 180x85x84 mm
2. Muffler with mosquito net
3. Tube - length 65 cm, Ø40 mm
4. Pipe insulation
5. Decorative grille - Ø60 mm
6. Dowel-nails - 6x60 - 4 pcs

Installation options for the DomVent valve

Instructions for the installation of the ventilation valve "DomVent"

It should be noted that the valve will operate at a high quality level only if the room:

natural or forced exhaust ventilation is functioning properly;
free movement of air between the rooms of the house, apartment or office is ensured (there are no interior doors with a hermetic porch). If this rule is violated, it is necessary to install ventilation grilles on the doors or create a two-centimeter gap between the door leaf and the floor.

The purpose of the supply valve is to supply outside fresh air to the room. Most modern apartments are completely devoid of supply air, which is designed for the operation of ventilation exhaust ducts in the kitchen, bathroom or toilet. For high-quality operation of the hood, the predominance of internal pressure over external pressure is necessary, otherwise it is possible. The inflow was made through the leaks of window and door blocks, but modern designs have a high degree of tightness and do not let air in, making natural ventilation impossible.

Supply valves provide access of outside air into the premises, normalize the work and create high-quality air exchange.

How does it work?

The operation of the supply valve consists in supplying outside air through a ventilation duct specially made in the outer wall or sash of a plastic window. The flow is carried out in a natural way due to the pressure difference inside and outside.

The volume of the inlet flow is regulated by a damper that increases or decreases the clearance of the ventilation duct. Adjustment is made manually by means of the handle on internal (wall) part of the valve.

Types and features

The main types of supply valves:

wall

From the name, we can conclude the installation location of the device. The most advanced models include breathers and wall valves, which have a much larger set of features. The most advanced models have humidity sensors (hygrometers), temperature sensors and remote control from a remote control or smartphone.

Expert opinion

Fedorov Maxim Olegovich

The main feature of inlet valves is no need to open windows. This plays an important role for people with various respiratory diseases or allergies. The possibility of constant ventilation in the absence of irritating or harmful air components is important for such people, it helps to ensure the quality of the indoor air and comfort for residents.

Expensive models with complex functionality are able to provide the highest quality fresh air supply with predetermined flow parameters. There are models with a programmable mode of operation. At the same time, almost any type of device is able to work like a regular wall valve, without being connected to the power supply network.

Wall damper supply ventilation

Wall valves allow you to get the maximum effect of ventilation of the premises. They are installed on the surface of the outer wall in a convenient place, they are often mounted above central heating radiators so that the supply air is heated and does not reduce the temperature inside the rooms. The valve device consists of three main elements:

outer decorative hood or ventilation grille
air duct installed in the through hole of the outer wall
the main block of the supply valve, in which a filter is installed, sometimes a fan and other equipment

Wall valves operating on the principle of natural flow, suitable only for relatively warm regions of the country. Cold air in frosty weather will create conditions for the formation of condensate, icing on the case and the wall around the device. In addition, cold air can chill the room, which will require increased heating costs.

The typical delivery volume of one valve is about 30 m 3 /h, which corresponds to the hourly rate for one person. This must be borne in mind when purchasing a device for an apartment. More advanced and expensive models are capable of supplying a much larger volume of flow, have a lot of additional functions - heating, multi-stage filtration, different speed modes.

For plastic windows

Supply valves for plastic windows are devices installed on the upper rung of the sash. Air is supplied through a hole in the frame. Outside, a decorative cap with a grate is installed to prevent the penetration of small debris, poplar fluff or insects. A housing with a dust filter is installed on the inside.

The supply of fresh air is carried out in the direction from the bottom up, which eliminates the possibility of drafts and allows the cold outside air to be somewhat warmed up from the heat of the heated inside air cushion.

The disadvantage of such valves is cold bridge formation at the point where the supply air is released into the room. It is served unheated, greatly cools the body, which contributes to the formation of condensate and hull icing.

Window valves for fresh air ventilation

Window valves, in addition to those already considered, have another implementation option. A rubber seal is cut off on the outer part of the window sash. The valve is mounted on the upper part of the sash, attached with three screws to the plastic quarter. Air is supplied through a gap formed by the absence of a rubber seal.

The device is very simple, but does not require drilling or milling of plastic flaps, and replacing the seal, if necessary, is not difficult. The device allows ventilation with simultaneous filtering of the incoming air flow, although such a valve cannot compete with more advanced models of wall installations in terms of the quality of preparation.

Domvent

Domvent wall valves are designed for installation in a through hole in an external wall. The design of the valve is designed for installation above radiators. Air supply occurs in the longitudinal direction (parallel to the plane of the wall), which allows the flow to be heated by the heat of the battery. Such an installation completely eliminates the wetting of the walls, icing or the supply of too cold air. The only exceptions are regions with very cold winters (-40°C or so). An additional function of the Domvent valve is noise isolation, which reduces the level of external sounds to almost zero.

The design of the damper consists of an external grille with a mosquito net, an air duct and a main unit located inside the room above the heating radiator. High-quality air filtration ensures the absence of allergens, fine dust, wool particles and other harmful or unwanted elements.

KPV 125

A complete analogue of this model is the KIV-125 valve. The supply valve of a conventional design without additional elements, designed for natural ventilation of the premises. Made from insulating materials reduces the risk of icing in winter time. This noticeably distinguishes KPV 125 from window valves that are prone to icing or condensation.

To control the damper, there is a special knob, by turning which the opening or closing of the lumen of the ventilation duct is achieved. If the valve is too high, the adjustment is made using a special cord attached to the handle.

The design of the damper is practically the same as the basic model - an external ventilation grill, an insulated air duct, a main unit with a filter and a control handle. The appearance of the device is quite attractive and neat. The valve has a compact size and does not stand out on the wall surface, ensuring high-quality performance of its tasks.

Which valve to choose - rating

The choice of wall valve is influenced by various factors:

the needs and needs of the premises
climatic conditions of the region
room sizes, number of people
preferences and wishes of residents
financial opportunities

Among the many design options, it is customary to refer to the most high-quality and advanced installations breathers of the Tion family. They lead in terms of price-quality ratio, user reviews unanimously give them the palm in all positions.

For normal ventilation of premises without the need for additional functionality, you can use ordinary window or wall devices that do not need a power supply, are easy to install and maintain.

It should be borne in mind that the cost of supply ventilation units starts at 16,000 rubles, which significantly limits their use. The final choice is usually driven by a combination of opportunity and necessity.

Installation: installation rules

The installation of window valves consists in drilling (milling) a through hole in the upper horizontal partition of the window sash. Alternatively, it may only be necessary to remove a piece of rubber seal, which significantly reduces interference with the window structure. The valve body is installed on the frame and fastened with screws, after which the device is ready for use.

Expert opinion

Heating and ventilation engineer RSV

Fedorov Maxim Olegovich

Installing wall valves is much more difficult. The main stage of installation is drilling the outer wall under the plastic duct. The hole diameter is about 12 cm, which requires the use of a special tool. Typically, a diamond drill is used, installed in an electric drill on a special feed rail. It provides the specified position of the tool and feeds. The channel should have a slight outward slope of 3-5° to drain condensate or rainwater. The work is difficult, it is not recommended to do it yourself.

After the hole is made, the installation is carried out and insulated. At this stage, it is important to ensure the thermal insulation of the tube in order to prevent cold from entering the apartment. Then the indoor unit is hung, tightly attached to the wall. After that, it remains only to connect the device to the power supply and set the required operating mode.

In an effort to protect the house from cold, noise, dust and other negative external influences, a person seals building structures. Along with the improvement of the insulation characteristics, the quality of ventilation is reduced - the supply of clean air is reduced.

The problem can be solved in different ways. One of the most affordable and effective methods is to arrange a supply valve in the wall, providing the necessary supply of fresh air. In this material, we will talk about the need to install this device, weigh the pros and cons, and also reveal the secrets of installing a wall inlet valve.

The main function of the supply ventilation valve is to ensure the supply of fresh air to an apartment or house.

The wall ventilator normalizes the microclimate of the room when natural ventilation does not cope with its task.

With the massive replacement of wooden window blocks with PVC products, natural ventilation has lost its effectiveness - the inflow of air from the outside has significantly decreased due to the tightness of modern structures. The rate of circulation of air flows in a closed space tends to zero, which has an extremely negative effect on the quality of the microclimate.

The first sign of insufficient air intake is the appearance of condensation on the windows. High humidity promotes the development of microorganisms - mold and fungi

If you do not take measures to improve ventilation, then over time, minor troubles can cause more serious consequences:

The concentration of carbon dioxide rises, which adversely affects the well-being of a person. Fatigue, drowsiness, headache, decreased performance are the result of a lack of oxygen.
High humidity and lack of air circulation is an excellent environment for the development of pathogens. Mold spores can cause allergic reactions or provoke bronchial asthma. At risk are young children and people with reduced immunity.
Exhaust ventilation works inefficiently with low air flow - unpleasant odors, pollution, harmful substances are not removed naturally.
In conditions of constant high humidity, the structural elements of the building wear out faster.

The operation of the window in the ventilation mode can solve the above problems, but at the same time, the main advantages of "plastic" glazing are nullified: heat and noise insulation.

However, for normal air circulation, the following conditions must be met:

the presence of a working hood;
the movement of air masses even with closed doors indoors - it is necessary to provide a gap between the floor and the door of 1.5 cm or equip ventilation grilles.

The operation of the hood can be tested experimentally. Open the window and bring thin paper to the grate. With good traction, the sheet will be attracted to the ventilation duct.

The supply ventilation valve in the wall helps to bring clean air into the room without heat loss. Most often, heated ventilation is used, since in the cold season it protects against drafts and freezing of the wall.

Each of us, after installation, faced the problems of stuffiness in the house and the effect of "weeping windows", from which a fungus can appear. It is the ventilation valve that helps to solve these problems.

Such a device is inexpensive and easy to install, and will bring a lot of benefits to your room. Further in this article we will talk about the supply valve, its types, do-it-yourself installation, consider prices and reviews.

Among the various ways of arranging forced ventilation systems, there is a simple, but quite effective device - the installation of a supply valve into the wall.

Fresh air dampers manufactured by different manufacturers may have a different appearance, but their components and basic functions remain the same.

pipe (plastic cylinder) - usually its length is slightly greater than the thickness of the wall, inside it is covered with soundproofing material;
grate - closes the entrance to the pipe, preventing the ingress of small objects, debris and animals;
sealing ring with a damper - located on the inside of the wall, serves to block the flow of air in strong winds;
filter - cleans the supply air;
block with a decorative cover (plastic head) - equipped with an inlet valve and an air flow control knob.

Such devices are easy to install with your own hands, work without connecting to the mains. Installation is carried out at any time, regardless of repair work.

Useful advice! When choosing a supply ventilation valve into the wall, it is necessary to choose a model with a suitable temperature regime, the dimensions of the plastic cylinder and the valve cover.

If you do not take into account the dimensions of the pipe, it may turn out that its length is not enough to pass through the entire thickness of the wall. And the dimensions of the plastic head may not allow it to fit between the window sill and the heater for mounting the ventilation valve into the wall with heating.

The main function of the supply valve is to constantly provide fresh air from the street, and the air entering through the valve will already be cleaned. In addition, the valve protects against noise, which is impossible with open windows: inside the plastic pipe there is a gasket made of noise-insulating material.

The air supply in cold weather will not contribute to lowering the temperature in the room if you choose a place for mounting the supply valve in the wall above the heating radiator.

Installing the inlet valve into the wall does not require special skills, it is easy to install and easy to adjust. In apartments with insufficient heating during the cold season, using a damper, you can adjust the volume of the supplied flow or install the device near heating radiators.

The principle of operation of the supply valve into the heated wall is as follows: air from the street enters through the grate into a pipe mounted in the wall and equipped with sound insulation. Then the air is cleaned with a coarse filter.

Due to the shape of the damper, the degree of noise and the speed of the air flow entering directly into the room are reduced. The flow regulated by means of a damper is directed to the heating radiator and the already warm air is distributed throughout the room.

So, with the help of a wall valve, air exchange is ensured at any time of the year, even in extreme cold.

Like any device, the ventilator has its undoubted advantages and disadvantages, which cannot be ignored.

With the use of the device, the need for constant opening and closing of windows is significantly reduced. This saves time and saves window mechanisms.
The device acts as a noise insulator and filters the air from toxic urban impurities.
The device has control functions, it can be adjusted to the needs of a particular home.
Installation of the ventilator in the area of operation of heating devices significantly saves heat loss.
The device has small dimensions, is almost invisible on the wall and does not interfere with the placement of furniture.
The device has a relatively low price, is easy to assemble and can be manufactured and installed independently.

Helpful information! Installing a supply unit in the area of the battery will lead to the fact that the cool air of the street will be heated by the heat of the radiator when it enters the room. The second option for installing the device is at the top of the wall, where the incoming air masses will mix with the heated air of the room.

To install a ventilation valve in the wall, it is necessary to make a hole, that is, in some way violate its integrity.
Incorrect installation of the device can cause freezing of the wall.
In the northern regions in winter, the ventilator can contribute to a drop in the temperature in the room to values that are uncomfortable for a person.

Supply valve KIV

Wall damper KIV-125 is by far the easiest way of natural ventilation. It doesn't cost you much! You can install the valve even after repair.

It is placed anywhere on the outer wall. KIV-125 is not noticeable on the wall inside the room, as it is covered with curtains. You can independently regulate the intensity of the air supply with a cord or handle.

KIV 125 is a self-contained adjustable wall valve designed to supply premises with a controlled air flow. It is capable of supplying clean air with a volume of 36 to 50 cubic meters per hour.

The KIV 125 valve is relevant in rooms with sealed windows, as it prevents the formation of condensate and freezing of walls. It also protects against noise and dust. Providing only fresh air.

The wall vent valve is designed to provide a regulated supply of fresh air to the premises of residential and public buildings with natural or mechanical exhaust ventilation.

Wall ventilation damper KIV-125 consists of a body (plastic pipe Ø 133 mm), inside of which there is a noise-insulating material (insulation), a cap with an adjustable damper and a filter installed from the side of the room, and a protective aluminum grille with a mesh installed from the outside of the building .

Hole drilling is carried out using a Hilti-type diamond tool (DD 160 or DD 200) and a sludge collector with a collector for work in rooms with a fine finish, which will provide a through hole through reinforced concrete and metal siding perfectly even without dirt, slurry emulsion, dust (provided qualified personnel).

Drilling holes in the siding fastener area is not allowed.

t / w insulation based on polyurethane foam;
t / sh insulation - basalt cylinder laminated with a hydro-vapor-windproof membrane with OZD (fire-retardant additives).

The VK head is one of the main parts of the supply valve KIV 125.

The head consists of: a handle that regulates the flow of air; covers; porous filter; two axes that allow you to open and close the flaps of the head; dampers with cufflinks that can be squeezed out to organize a constant flow of air; sealing ring.

The head itself is made of ABS plastic, which is used in the manufacture of shower cabins. It is more durable, not subject to yellowing. Head accessories are made of materials that do not absorb moisture, which will not lead to the growth of fungus under the head cover.

Supply valve in the wall Leroy Merlin

air ducts;
check valves;
gratings.

In Leroy Merlin stores, you can directly consult with specialists, familiarize yourself with and order the necessary components for the manufacture of a supply valve into the wall.

In the conditions of the Russian climate, heating in the ventilation system is not a luxury, but a necessity. Supply ventilation without heating, firstly, lets in cold air from the street, which is fraught with a decrease in room temperature, drafts and colds.

Secondly, such ventilation can freeze itself and provoke freezing of the wall in which it is installed.

There is also a heated ventilation valve. This type of ventilation system is extremely important in the cold season, because it helps to warm the air that enters the room.

But we do NOT recommend installing this device yourself, because this is a rather laborious process that requires certain skills. Choosing this device is not an easy task, but it is quite doable.

Aereco valves of the EMM series have hygroregulation and moisture sensitivity. It has two methods by which fastening is made. They also characterize the air supply options and its direction (horizontal, vertical). The aereco supply ventilation valve can be automatic.
Aereco dampers of the EHA series also have a sensor-actuator, with which the microclimate of the room is regulated. It comes with acoustic fittings that perform the function of absorbing sounds.
Aereco EHA2 series valves - this device has three options for operation: automatic, minimum and maximum. The inclined flow of exhaust air is directed towards the ceiling area, which implies a gradual heating of the air entering inside.

There are three main options for mounting the supply damper: Above the heat source. In this case, the outside air enters the room already heated, and its convection is also stimulated. At a height of 2/3 from the window, which is about two meters from the floor, and at a distance of 0.3 m from the window slope.

The air mass will be directed towards the ceiling, where it will mix with the warm room air. In places with high dampness. It may be a corner of the house that has already begun to grow moldy. Supply valves to enhance ventilation are appropriate not only in the walls of private houses, but also on the lower floors of apartment buildings.

In the latter case, the best place would be the space between the window sill and the radiator. These devices are in demand in children's institutions, where fresh air is especially important. With the help of this design, they provide an optimal microclimate in rooms for keeping animals and birds.

It is a mistake to think that by installing one valve, you will solve the problem with the lack of clean air. This is only possible if a device for forced ventilation is included in its design. When this is not the case, air exchange occurs as a result of the pressure difference between inside and outside the room.

One wall valve with a pressure drop within 10 Pa, which is observed under normal conditions, provides a flow of up to 30 mᶾ / h. This is the norm for one person.

With a greater pressure difference, the volume of air entering the room also increases. Therefore, to achieve the desired effect, you will have to install another valve in addition or forced ventilation.

Supply valves are also produced, which are built into ventilation shafts. Usually this is done in the bathroom, in the bathroom, in the kitchen. Before installing them, the traction should be tested. To do this, check the presence of air flow with the window open, using a lit match brought to the hole.

If it turns out that the existing ventilation is not functioning well, then the supply valve installed in the wall will not guarantee the supply of fresh inflow in the volume for which it is designed /

These manual verification methods may not work during the hot season. The air heated by the summer sun becomes heavier than during the cool. Because of this, the pressure in the ventilation duct will decrease and even with a satisfactorily working system, the flame or sheet of paper will not be attracted.

When choosing a place for installing a valve on the facade, you need to consider where this wall is directed. It is better when the air is taken not from the side of the street, where there is an active movement of vehicles, but from the yard.

Each valve model has its own characteristics. They are distinguished by the cross section of the duct, the presence of such an option as the complete closure of the device. The design of some provides for the possibility of installing sound insulation, while others do not.

The work of some mechanisms is regulated manually, but there are also models with automatic adjustment. Models of supply valves of different designs have different diameters, therefore they provide the house with clean air in different volumes. Different lengths of inlet valves, as well as the material from which they are made.

With its inner part, the head is inserted into the channel and fixed to the wall using screws through a gasket for sealing. The wall ventilator needs periodic maintenance. The outer grate is cleaned of dirt at least once a year.

Clean the head filter once a quarter. At least once every 6 months it is necessary to clean the nozzle in the wall using a vacuum cleaner.

When choosing a supply valve, you need to check for what temperature range it is intended. Otherwise, in case of violation of this condition, it simply will not be able to function fully. It is also important to choose the right device for the length - the indoor unit must pass through the wall through and through.

The valve cover must fit freely in the space between the window sill and the heater.

If the radiator is semi-warm, then the air entering through the wide valve without adjustment will not have time to warm up and the temperature in the room will drop. And with insufficient volume of incoming air, you will have to think about additional ventilation.

If the patency of the inlet valve is quite large, and its design does not provide for adjustment, two such devices cannot be installed opposite each other. In winter, when ventilation is most active due to the inequality of pressures inside and outside, drafts will appear.

There are two types of valves - for air infiltration and for supply ventilation, they have the same one - supplying the building with fresh air. Only individual elements and markings can be different for supply valves.

The infiltration valve functions autonomously, it does not need to be controlled. It is almost imperceptible, effectively heats the air. It can be installed both during the construction of the building and in the wall of the house where people have been living for a long time.

Supply valves in the wall reviews

Before buying such an important unit for any home, it does not hurt to first read the reviews of people who already have such systems at home.

Alexandra, Ryazan

Previously, in the winter, the rooms were incredibly stuffy. In addition, the situation was worsened by the switched on fan heater, which, during operation, by itself strongly “dries” the air. Ventilate through open windows, not only is it dangerous because of the draft, it is also impossible, especially at night, when the frost outside the window is down to minus 25 degrees.
A friend advised me to buy a KIV. The problem immediately disappeared, as it never happened. I was very surprised when such a simple device instantly solved my problem, and I had not heard of it before.

Eugene, Kaliningrad

The same problem arose as for most people who do not live in “hot countries” all year round, namely, in winter you constantly face the choice of ventilating the house, freezing yourself and your loved ones, or “choking” all together in stuffiness.
I have small children and both options have a bad effect on their health, it is precisely such contrasts that I blame for frequent colds and runny noses. Finally, we decided to organize forced ventilation.
At first they thought to choose the option built into the window, but after reading the reviews, they bought a wall unit. It turned out to be quite cheap, and surprisingly, extremely effective, even in summer, which surprised me the most.

Julia, Moscow.

We bought a model from Domvent and goodbye mold and stuffiness, it really works. The apartment was purchased in a new building already with plastic windows. In winter, they misted unrealistically, ice formed. And in the spring there was mold. As a result, we decided to make a micro-repair to clean the mold and called the master to install the ventilation valve.
He asked how many people live and advised to install a couple of valves for optimal air exchange in the room. In general, we use the whole year no mold, no misted windows. And the price, in general, is ridiculous - 2500 rubles for each valve with installation.

Igor

At the initial stage of building my own house, I did not take care of this, so I had to do it already in the built one. As it turned out, it was not difficult at all, we did it with a friend, bought the most suitable materials in a hardware store, looked at detailed instructions on the Internet.
We installed 5 valves in 3 days, the air in the house became much cleaner, it's nice to breathe, they stand above the batteries.

Based on user reviews, we can conclude that the wall inlet valve is a fairly inexpensive, but very important device for the internal microclimate of any room, which can both solve a difficult problem and improve living conditions somewhat, which in any case is 100% justifies its installation.

grate from the bathroom or sink;
filter (piece of foam rubber);
insulation;
plastic pipe;
valve.

The plastic pipe will be an air duct, the piece should correspond to the thickness of the wall (a small margin can be provided). The optimal diameter of the tube is 10 - 12 centimeters.

Too large a diameter can lead to significant heat loss.

A grill is fixed on one side of the tube, this will be the outer part of the device.
A rolled-up insulation (mineral wool, expanded polystyrene) is inserted inside the tube. For this purpose, you can use pipe insulation.
The thickness of the layer should be about two centimeters, this is enough to prevent freezing.
Next, a foam filter is inserted into the tube.
The last step is to install the valve. You can make it yourself or purchase a finished product at any ventilation equipment store.

An alternative to the ventilator can be a grille with movable shutters. If necessary, they can be manually closed and opened.

It is not difficult to make a supply valve with your own hands, using affordable and inexpensive materials. Installing the ventilator is also not particularly difficult and can be done by a novice master.

The installed device must be cleaned periodically. It is especially important to do this for owners of city apartments, where the soot and dirt of the street will inevitably settle on the filter of the device.

Ventilation function must be checked regularly. For this purpose, you can use a candle flame or paper cut into thin strips.

To create a healthy climate in the house, it is necessary to install a supply valve in the wall. This simple device will bring filtered air into the room and prevent mold from growing on the walls and ceiling.

Supply valve to the wall buy

Ventilation devices with a minimum set of functions are relatively inexpensive. The simplest model can be purchased for five hundred - eight hundred rubles. But the most effective models are considered in the price category of two to four thousand rubles.

The average cost of supply valves in the wall:

Picture/Model	Average price, rub	Incoming air volume, cubic meter per hour	Diameter, mm	additional characteristics
KIV 125	1600	36-60	133	mosquito net
Aereco	4200	5-40	100-125	Noise suppression
KPV-125	2450	54	125	Heat and sound insulation
SVK V-75	2500	1,5-31	142	Heat and sound insulation

In the simplest versions, ventilation valves are inexpensive. For only 500-700 rubles. you can buy a good model from a well-known manufacturer.

However, if several devices are required with installation for a long time, then it is better not to save money and purchase more technologically advanced and reliable inlet valves into the wall, the price of which will be about 2-3 thousand rubles.

These can be hygro-controlled devices that respond to changes in humidity and independently change operating parameters. The most expensive models have a sensor made of polyamide tape that controls the flaps, increasing or decreasing the air flow.

You should also take into account the installation costs, which can be quite impressive when installing the valve into the wall. As a rule, specialists mount devices purchased from their own companies at significant discounts, but all the same, the cost of this part can amount to 1-2 thousand rubles.

KIV 125 with a capacity of up to 35 m3 / h with a manual regulator and a pipe section of 113 mm can be purchased for about 3 thousand rubles.
The supply ventilation valve "Domvent", with a pipe with a diameter of 65 mm, providing an influx of 13 cubic meters of air per hour and having a manual adjustment function will cost 2 thousand rubles.
The Aereco EHT 780 auto-adjustable supply ventilation device guarantees an influx of up to 40 "cubic meters" of fresh air per hour, without human intervention, but is sold at a price of more than 7 thousand rubles.

To organize the flow of fresh air into the building (both residential and non-residential), supply ventilation valves (ventilators) are now often selected.

By location, the most common are wall models - mounted in an outer wall.

Design Description

Air duct. A pipe through which air passes from the street to the room. The vast majority of models have a plastic air duct.

External ventilation grill. Prevents precipitation from entering the duct. Made from plastic or metal.

The inner case is a head (made of plastic, usually delivered unassembled). Contains a filter, directs the air flow into the room. Made from plastic.

Inside the duct there may be a heater-noise insulator. It is necessary so that the wall around the pipe does not freeze, as well as to reduce street noise.

Polyfoam usually acts as a heater. The parts described above can be purchased separately, and you can make a homemade ventilator with your own hands, which will cost a little less than buying a finished product.

If the ventilation wall valve has the ability to be adjusted, the regulator is located in the inner case (head). Some models (Aereco EHT) are additionally equipped with a hygroregulation system. It reacts to the humidity of the air inside the room, and opens the valve when a certain indicator is exceeded.

More complex air handling units (for example, the Eco Freshness line of models) can be additionally equipped with the following elements:

Fan.

Recuperator (air heater).

Humidity and / or air temperature sensors - for automating the operation of the device.

Remote electronic control panel (with the help of which the fan and/or heater are turned on/off).

Purpose of the product

The task of the supply ventilation valve is to provide a person (as well as animals and plants) with enough air to breathe, and to prevent the appearance of mold in the room.

If there is no constant flow of fresh air into the room (and about 30 cubic meters per hour is required for 1 person), the body does not receive the proper amount of oxygen. In addition, stuffiness leads to moisture condensation on the window slopes, frame and window sill, which over time can lead to the development of mold.

The wall air damper is able to supply a sufficient amount of fresh air: under normal conditions (if the pressure drop is 10 Pa), about 25-30 m³ / h flows through most models. Just as much as required by sanitary standards for 1 person. If the pressure drop is greater, the amount of incoming air will also increase.

Principle of operation and check of ventilation ducts

Air from the street enters through the ventilator, since the pressure in the room is lower than outside. Such conditions (pressure drop) are created due to the operation of exhaust ventilation in the room: an exhaust hood or a simple ventilation duct.

An important point to be taken into account: if the exhaust ventilation works poorly, then the ventilator will also produce less air (since the difference will be less than the norm, or it will not exist at all). Therefore, before planning the installation of an inlet ventilation valve, you should make sure that the exhaust ventilation is functioning properly.

To check the operation of the ventilation duct, necessary:

Open a window (or a window, or a balcony, the main thing is that there should be an influx of fresh air).

Bring a lit match or lighter to the ventilation grille.

With a normally working exhaust ventilation, the flame should “pull” into the channel. If this does not happen, or if the flame, on the contrary, deviates from the grate, then there is no draft, and the ventilation in the apartment is disrupted.

Instead of an open flame, you can check the operation of the ventilation duct with an ordinary piece of paper (best of all, toilet paper, since it is thin and light). A small piece must be attached to the ventilation grille. Ideally, the paper should be attracted: in this case, the exhaust ventilation works fine.

The verification methods mentioned above may be useless in summer, in hot weather. Air in hot weather is heavier than in cool weather, and therefore the pressure in the ventilation duct drops. Therefore, even normally working ventilation may not attract fire (or paper).

About the pros and cons of using

The use of a wall ventilator is a useful solution for several reasons:

there is no need to open and close the window often (which means that the fittings, designed for an average of 10,000 movements, do not wear out);

less noise comes through the valve than through an open window (due to the filter and insulation in the duct);

it is possible to adjust the amount of incoming air (there are no regulators, mainly only on the cheapest models);

installation near the battery or at the top of the wall avoids sharp fluctuations in temperature in winter;

inside the room, the product is imperceptible (with any method of installation it is easy to cover it with curtains), and if it is noticeable, it does not spoil the interior and is not striking;

relative cheapness (1 set of valve and its installation by specialists in total will cost about 3-5 thousand rubles).

As for the last point: when installing a ventilation valve near the battery, the air will heat up from it. In the second case (if the valve is mounted at the top of the wall), the air will enter the room from above and mix with the room (warmer).

More expensive models of inlets can be additionally equipped with recuperators (heaters) and fans. Fans can be both exhaust and supply. Such installations are more efficient, however, and cost at least 8-10 times more expensive than conventional ventilation valves (for example, prices for Eco-Freshness, which has a fan and heating, start at 15,000 rubles).

There are also disadvantages:

the need to make a hole in the wall (if you want to remove the inflow after some time, there will be a through hole to the street);

mistakes made during installation can lead to the fact that the wall (the area between the hole and the slope) will freeze, or some part of the duct will freeze in winter;

in too cold regions (where the temperature drops below -10 ° for a long time), it will not be possible to use the supply in winter, because it will be very cold in the room;

models without a fan on average can give about 30 m ³/h of air (which is normal for 1 person in a room).

Types and differences

All wall tributaries differ in several ways:

What does the ventilator look like from the outside (from the street) and from the inside (from the room)

With manual adjustment of the amount of passing air or without adjustment.

By the presence or absence of an automatic control system.

By the presence or absence of soundproofing of the duct.

If it is possible or impossible to install additional accessories.

If it is possible or impossible to completely close the valve.

By duct diameter.

The amount of air passing through.

Otherwise, the differences are only in the device of the internal (located in the apartment) case and the appearance of the elements.

As a special case, there are differences in the shape and material of the duct. For all models, it is a plastic pipe. Only SVK V-75 M differs - this wall damper has an air duct made of expanded polystyrene and has a rectangular shape. It is located directly under the windowsill.

Ventilator models

The number of models is now considerable. Here are the specific names:

(the only model in the list with a rectangular duct).

Installation nuances

In addition to the above-mentioned model SVK V-75 M, other supply ventilation wall dampers can be mounted in any place on the outer wall. but the most successful are the following areas:

Under the windowsill, next to the battery.

At the level of 2/3 of the height of the window opening (for an ordinary apartment - at a height of about 1.8-2 meters from the floor).

In the first case, the air entering inside is immediately heated from the battery. In the second, it enters the upper part of the room, where it mixes with warm air. Both options are good because this arrangement allows you to hide the wall valve behind the curtains.

The only requirement that should be taken into account in the second case is that there must be at least 30 centimeters from the location of the supply valve in the wall to the window slope. Otherwise, this area may freeze in winter.

About the device and installation of the valve on the example of KPV 125 (video)

Installation steps

To install the inlet valve into the wall (we will consider the installation process for valves with a round air duct, you can read about the installation of the SVK V-75 M separately) you will need:

Marking tool.

Installation of diamond drilling.

Hacksaw (for cutting the duct if necessary).

Glue (if the outer grille is glued to the duct) or a screwdriver (if it is bolted).

Unnecessary rags or plastic sheeting - to cover the floor in the work area.

Protective equipment for eyes and respiratory organs (against flying dust during drilling).

Installation performed in the following sequence:

The place of installation of the ventilator is selected, taking into account the rules mentioned above.

A hole is drilled in the wall. It should have a slight slope (3-4 degrees) towards the street - so that moisture does not accumulate when it enters the duct.

Holes are drilled for self-tapping screws (for fixing the inner case).

The air duct is “trying on”: the pipe is inserted into the hole, and the desired length is marked.

Excess pipe - cut off at the mark.

A noise insulator is installed inside the duct (if it is included in the kit; if not, it is recommended to buy a pipe insulation “shell” of the required diameter on your own and use it as sound insulation).

The pipe is inserted into the hole.

Outside, a ventilation grill is attached to the pipe (with glue or bolts). Its blinds should be directed down towards the street, and located horizontally.

The inner case is attached to the wall with self-tapping screws.

Assemble the inner case.

Installation steps using the Domvent valve as an example (video)

Care and maintenance

For cleaning, it is necessary to dismantle the inner housing and remove the filter and noise insulator. It is recommended to do this in the warm season so that the cold wind does not blow into the room (or the hole will have to be sealed).

If the filter and insulator are made of synthetics (and this is the case for most models), they can be washed in soapy water. After that, without fail, they must dry.

You also need to pay attention to the cleanliness of the air duct inside: you can look inside while the filter and insulation dry. If there is a large layer of dust or small debris inside, you can remove it with a vacuum cleaner. Alternatively, you can remove the outer grate and blow the pipe with a vacuum cleaner.

If the temperature in the room begins to drop significantly in winter (usually this happens when the temperature outside the window is below -10º and / or when the wind is strong), it is recommended to reduce the air flow through the valve (if there is a possibility of adjustment).