How to calculate the size of the ventilation grills in the steam room. How to make ventilation in the sauna: scheme options, device and materials

A high-quality ventilation system is an indispensable element of the steam room. The absence or improper organization of ventilation in the bath is dangerous to human health. A properly equipped system will protect people from carbon monoxide and improve the comfort of staying indoors. We will talk about the features and technology of installing the ventilation system in the bath later.

Characteristics of proper ventilation for the steam room

Proper ventilation in the bath performs several functions at once:

• provides the room with oxygen;
• improves the comfort of staying in the steam room;
• removes carbon monoxide;
• allows economically expedient to spend firewood;
• evenly distributes air flow;
• protects the building from the formation of mold or fungus.

The best option for ventilation in the bath is supply and exhaust. For these purposes, equip:

• air inlet - through them an influx of fresh air into the steam room is organized, a fan with a ventilation tube is installed, additional air inflow is provided by open windows or through the door;
• exhaust hole - the removal of heated air from the room, through the furnace, blower or devices that improve traction.

To improve the supply and exhaust ventilation system, various methods are used. We offer you to get acquainted with one of the most effective ventilation systems:

1. The supply openings are located at the bottom of the room, next to the firebox.

2. Exhaust openings strictly on the opposite side from above. It is possible to organize two holes at once for better air control.

3. The height of the exhaust port determines the draft level. If the vent is low, additionally reinforce the system with a vent pipe.

4. With the help of special dampers, the air supply from the room is controlled.

5. The air in the steam room is renewed every 2-3 hours.

In addition, the individual parameters of the ventilation system are determined by the type of room, the version of the bath. For example, in a Russian bath, periodic ventilation will help renew the air. In addition, the size and location of the installation of the furnace are taken into account; in relation to this parameter, two types of ventilation are organized.

How to make ventilation in a steam room with a separate firebox

We offer a variant of the organization of ventilation in the steam room, the firebox of which is located in the next room. This scheme is popular in ordinary Russian baths. To bring the firebox to an adjacent room, a furnace tunnel is used. Among the advantages of this arrangement of the furnace, we note:

• lack of garbage in the steam room;
• the door to the room opens only at the entrance;
• the possibility of mounting heat-resistant glass for admiring an open flame.

There are two ways to install air inlets in a room:

1. Arrangement of a ventilation duct in the underground space. Removing it in front of the furnace room, installing ventilation grilles on the channel.

2. Floor supply of ventilation.

On the opposite wall, install the hood, diagonally in relation to the air inlet.

The main quality of the organization of proper ventilation is that the inlet openings in area should coincide with the exhaust ones.

Ventilation scheme in a steam room with a firebox indoors

If the stove-heater is located directly in the steam room, then the organization of ventilation is different. In this case, air flows through the blower solve the problem with natural ventilation. This method is appropriate if the fire in the furnace is constantly.

If there is no chimney in the bath, and the stove operates in a short-term mode, a more advanced ventilation system is used. Familiarize yourself with the technology of arranging the ventilation system in the steam room:

1. Build a special brick podium on which the oven is installed. With its help, a ventilation duct is supplied to the furnace.

2. Lay the ends, build another box of bricks. As a result, the first structure is installed at the top of the furnace channel, and the second - to the door of the steam room.

3. On a wall adjacent to a regular room, build doors in the places where the masonry passes. They heat the next room, if necessary.

4. An oven is installed on the podium, it can be mounted on a corner or on steel paintings. Finish the furnace with brick, install a brick screen, with two convection valves.

5. The exhaust ventilation system operates due to the furnace furnace.

Correct installation of the ventilation system is based on its correct adjustment. General rules for managing the ventilation system:

• at the beginning of the furnace furnace, all openings and supply and exhaust are closed;
• wait for the temperature to rise, then adjust the vents with valves;
• if it is necessary to increase the volume of oxygen in the room, open the inlet;
• upon completion of work, open the shutters for better ventilation of the steam room.

Steam room ventilation photo:

To determine the temperature and humidity in the room, use special devices. An alcohol or electric type thermometer will help measure the temperature. Please note that the use of the mercury version is strictly prohibited. Use a hygrometer to determine the humidity level.

The principle of operation of the ventilation system is based on the following factors:

• melting the oven, the air is gradually heated and exits through the convection door;
• the lower door remains open until the oven is fully heated;
• close the door from below and work with the top hatch;
• in the process of soaring, only the blower installed on the box opens;
• after using the steam room for its intended purpose, ventilate the room well.

Do-it-yourself ventilation device in the steam room

The main functions of the ventilation system in the bath:

• air supply during bath procedures;
• high-quality room drying.

The ventilation system in the bath should not:

• violate the temperature of the room, in the process of taking bath procedures;
• to separate temperature flows, that is, cool air is closer to the floor, and warm air is from above;
• remove unused air from the steam room.

In addition, the lack of ventilation leads to the appearance of unpleasant air in the room, the formation of mold and fungus, which are harmful to human health.

There are three main types of ventilation in the steam room:

• the natural option is the supply of air flows through the pressure difference;
• mechanical option - air supply using special mechanisms, when measuring these characteristics with instruments;
• combined option - the creation of artificial pressure by fans and hoods.

There are two types of air transport in the room: supply and exhaust. For these purposes, a hole located diagonally with respect to the inlet is equipped.

It is not recommended to install an exhaust outlet in the steam room on the ceiling; this ventilation system increases the warm-up time of the room. It is rational to install the hood under the ceiling, additionally equipping a damper on it to adjust the draft.

In addition, provide a ventilated floor in the bath. Thus, the life of the floor covering is increased, as it is in constant contact with water. Recommendations for the arrangement of floor ventilation:

1. During the installation of the foundation base, ensure the ventilation of the floors, build vents from the basement.

2. On opposite walls, build ventilation holes that provide air flow. Install gratings on them to prevent rodents from entering.

3. The finished floor should be slightly higher in level than the blower is located. Thus, it will function as a hood.

4. Install wooden boards with a small gap, at least half a centimeter.

5. After taking bath procedures, ventilate the room well and dry the floors.

Another way to organize the ventilation system in the bath is “According to Bast”. In this case, fresh air enters the room from the ward space, and exhaust from the hole located near the door. For these purposes, build an exhaust box made of wood, lined with foil inside.

Build a ventilation duct under the floor, next to a metal sheet to prevent heat from entering it. The size of the structure should not exceed twenty percent. Adjusting the flow of fresh air through such a system is quite simple. It is enough to open the vent and blower. In addition, it is possible to avoid the accumulation of an unpleasant aroma in the steam room. This method of organizing ventilation is appropriate if the firebox is located directly in the steam room.

Ways to organize ventilation in the steam room with your own hands

Install the inlet under the stove 50 cm from the floor, and the outlet on the opposite side, thirty centimeters from the ceiling. The forced movement of air masses is provided by a fan. Thus, it is possible to ensure uniform heating of the air. The height of the first opening regulates the draft force of natural ventilation.

Two ventilation holes are located on the same wall, always opposite the stove. The inlet is installed at a distance of thirty centimeters from the floor, and the outlet is thirty centimeters from the ceiling. Install a fan in the outlet, the cooled air, entering the room, collides with the stove, heats up and exits.

Position the inlet behind the stove, at a distance of about twenty centimeters from the floor. The inlet is installed at the same height, only near the ceiling of the opposite wall. A hood is installed in the second hole. The principle of operation of the system is based on the ingress of cooled air into the steam room, passing through the furnace and pulling out the second hole.

This method is relevant for a steam room with a floor that has holes for water to drain. The inlet is installed behind the furnace, and the outlet is a drain pipe through which air is vented to the outside.

Relevant for a bath with a constantly working stove. The inlet is arranged opposite the stove, and the blower with a chimney acts as an outlet

If it is necessary to increase the temperature in the steam room, it is enough to close all the plugs. After taking bath procedures, they are removed. It is quite possible to organize these ventilation schemes on your own, without buying expensive appliances and special material investments.

How to make a vapor barrier for a steam room with your own hands

Vapor barrier in the steam room allows you to maintain the optimum temperature of the room. Special materials in the form of vapor-tight films, insulation and waterproofing will help create high-quality vapor barrier. The film provides protection of the insulation from the penetration of water vapor, while not letting in the moisture that is in the hot air.

Qualitatively equipped vapor barrier and ventilation system increase the service life of the room itself and its exterior finish. Since hot air rises, first of all, vapor barrier the ceiling with high quality.

For these purposes, use lahi, boards, about 6 cm thick. From above, they are covered with aluminum-based foil, cardboard with increased density or waxed paper soaked in drying oil. After fixing one of these materials, the ceiling is finished with clay and insulated.

In addition, the edged board will help to vaporize the ceiling. On the boards, cardboard impregnated with drying oil is installed, which is then sheathed with wooden clapboard.

Expanded polystyrene boards are a modern replacement for soft clay, they are distinguished by good thermal insulation and performance characteristics.

As vapor barrier materials for the walls of the steam room use:

Glassine and roofing material for thermal insulation of the steam room are rarely used. This is due to the fact that with strong heating, they emit toxic substances and unpleasant odors. The steam room is vapor-proofed with special foil materials. Allocate combined methods of vapor and thermal insulation. For example, NPP polypropylene, among its advantages we note:

• excellent resistance to moisture;
• resistance to temperature increase;
• laminated coating prevents the development of mold and mildew;
• combined thermal insulation.

In addition, it is possible to use rolled vapor barrier in the form of rolled foil or fiberglass boards. To seal the joints between vapor barrier materials, use foil tape.

The plates are installed on the ceiling with a small compensation gap of 20 mm. Thus, the effect of moisture on these areas is reduced. Please note that the vapor barrier in the steam room must be securely hidden behind the main finishing material, and a high-quality ventilation system is its complement.

Do-it-yourself ventilation in the steam room

Baths, saunas and swimming pools A high-quality ventilation system is an indispensable element of the steam room. The absence or improper organization of ventilation in the bath is dangerous to human health.

Do-it-yourself ventilation in the bath: how to do it right

Why do you need to attend to the question of how to properly ventilate the bath? Not only maintaining a comfortable temperature in the dressing room, washing room, steam room, rest room, but also safety, as well as the service life of the building and its parts, depends on how well the ventilation in the bath is arranged. When designing a bath and starting its construction, it should be remembered that the ventilation in the bath with your own hands must be done taking into account certain subtleties and nuances. With your own hands, with the help of instructions, photos and videos, all stages of ventilation installation in the bath and steam room can be performed.

Properly arranged ventilation in the bath will provide a comfortable temperature inside the steam room and extend the life of wooden elements.

The principle of operation of the ventilation system in the bath

The operation of the ventilation system is based on well-known physical laws, and the scheme of its device is simple and understandable. Two types of openings are required for continuous air circulation:

Air inlets are needed to bring fresh air into the room. With the correct ventilation device in the bath, they should be located as close as possible to the floor and near the stove. With this arrangement, the incoming air heats up quickly and the temperature in the bath is stably maintained.

The direction of movement of air masses inside the steam room

Exhaust openings are designed to remove superheated humidified air and carbon monoxide from the steam room. They should be arranged as high as possible, that is, just below the ceiling level, and be located opposite the air inlets in order to create and maintain a constant air exchange.

Advice! An exhaust hole in the ceiling will lead to rapid cooling of the room, so this location is undesirable.

There are no difficulties with the fundamental localization of supply and exhaust openings when installing ventilation in a bathhouse with your own hands. But the task of maintaining a high temperature in the steam room while effectively removing exhaust air and carbon monoxide from it is not easy.

You also need to pay attention to maintaining a temperature that is comfortable for both sanitary and hygienic procedures and for relaxation, in all parts of the bath: dressing room, washing room, relaxation room. And if you have to create and implement a ventilation scheme in the bath with your own hands, you should think about the competent execution of work.

Scheme of proper air circulation in the bath

Types of ventilation

There are two types of ventilation:

Which one to choose when installing a ventilation system with your own hands depends on the design of the bath and the volume of its premises.

Ventilation system with electronic control unit

natural ventilation

This type of ventilation works due to the difference in temperature and pressure inside and outside the room. The efficiency of its work depends on the location of the openings for the inflow and outlet of air. The most suitable solution is that the supply openings are located near the floor, at a height of 250-350 mm, next to the stove, and the exhaust openings are on the opposite wall, 150-200 mm below the ceiling level.

The best photos of finishing the bath inside and a description of the stages of work. Sequence of actions when repairing a sauna. Recommended materials and installation rules for use. Waterproofing and wall insulation.

Natural ventilation systems are not suitable for ventilating a steam room or steam room, since the cold air in this room collects at the very floor, and the hot air in the upper part. Adjusting the movement of air flows is accompanied by difficulties, but with the correct arrangement of the ventilation elements in the steam room of a Russian bath, it is possible to cope with this problem with your own hands.

Natural ventilation is not suitable for a steam room, it is advisable to equip it in a rest room

Forced ventilation

For this type of ventilation in the steam room of a Russian bath or sauna, two subspecies can be distinguished:

1. Ventilation with the help of special electronic systems that control the temperature and humidity of the air, regulating its flow and filtration with the help of automation. Such systems are quite expensive, and their use is often knocked out of the budget.
2. Combined ventilation system, when due to the use of fans, the effect of natural ventilation is obtained.

The location of the ventilation ducts inside the walls of the bath

Dependence of the bath ventilation system on the type of building

Natural ventilation, provided that the vents are correctly positioned and their sizes correspond to the volumes of the premises, functions well in a Russian bath, assembled from a log or a beam.

The frame building is a sealed structure. It is advisable to use forced ventilation in frame baths. The supply opening in the outer wall of the steam room should be additionally equipped with a blower fan.

In a brick or foam block building, only forced ventilation is possible.

The type of ventilation system is selected depending on the materials from which the bath is built.

Planning the ventilation system of the bath: subtleties and nuances

Before proceeding with the choice of the ventilation scheme in the bath and the device of its design with your own hands, you need to understand the intricacies and nuances of design.

Fact! Even small errors in the layout of the supply and exhaust openings lead to undesirable consequences. In the steam room, either the constant air temperature will decrease, or the concentration of carbon monoxide will increase.

During the construction of any bath - the ventilation of the bath and its schematic diagram is laid in the process of construction. The question "how to make ventilation in the bath" should be decided at the design stage.

The ventilation ducts of the dressing room, washing room, steam room, rest rooms and openings for the inflow of fresh air and the removal of a mixture of carbon monoxide with exhausted moist and hot air masses must be laid at the appropriate stages of construction. Gate valves and gratings to control the size of supply and exhaust openings and sections of ventilation ducts are already installed at the stage of finishing the premises.

The planning of the ventilation system must be carried out at the stage of development of the design project of the bath room

Basically, the functioning of the ventilation of the bath depends on two factors:

• the dimensions of the ventilation openings - both supply and exhaust - which are determined by the volume of the room, whether it is a dressing room, a washing room, a steam room or a rest room;
• position of ventilation holes.

Vent sizes

The dimensions of the ventilation openings depend on the volume of a particular room: dressing room, steam room, washing room or rest room. It is very important both to accurately calculate the size of these openings, and to ensure that it can be changed. To adjust the gaps in the openings, doors-latches and gratings are installed.

Air vent with slider for adjusting the amount of fresh air inflow

It should be noted that with large ventilation windows it will be difficult to heat the room to the correct temperature. There will either be a danger of a constant waste of fuel and electricity, or difficulties in adjusting the cross section of the ventilation ducts, that is, the distance at which each opening will need to be opened with one's own hands.

Advice! The area of ​​the ventilation opening is determined at the rate of 24 cm² per 1 m³ of the volume of the ventilated room. For a good draft of fresh air from the outside, the exhaust opening must be larger than the inlet.

If the area of ​​the ventilation openings is insufficient, the temperature, air humidity and concentration of carbon monoxide in the room can rise to critical values.

The optimal size of the ventilation opening is calculated at the rate of 24 sq. cm per 1 cubic meter of room volume

The position of the ventilation openings

The action of any ventilation system is based on the replacement of masses of heated air set in motion under the pressure of air coming from outside - colder and heavier. It is important to be able to regulate the direction of the heat flow coming from the stove installed in the bath. The ventilation in the steam room is often equipped with not one inlet, but two for this very reason. To localize heat flows, it is enough to create a gap of a certain width in one or both of them with the help of valves.

Scheme of placement inside the steam room of ventilation openings for the inflow of fresh and removal of polluted air

Ventilation in the Russian bath

The quality of the ventilation system of the bath, designed and assembled by oneself, is laid down at the project stage.

The air currents circulating in the rooms will have different temperatures, but the discomfort from this should be felt as little as possible.

Advice! Comfort in the bath depends not only on the absence of sudden temperature changes "horizontally", that is, when moving from one room to another: from the rest room to the dressing room or from the steam room to the washing room. A soft movement of air masses vertically is necessary: ​​the air temperature near the floor should not be much lower than the temperature at the level of an average human height.

The microclimate in the bath directly depends on the number of ventilation holes, their size and location.

The uniformity of the intake, mixing and removal of air masses depends on the number of supply and exhaust openings, their size, location relative to each other and heating devices, as well as the equipment of additional control devices.

The main schemes of the ventilation device in the bath

Any sauna ventilation scheme is designed with one goal in mind - maintaining the temperature, humidity and freshness of the air in the steam room. The premises of the bath, and especially the steam room, are exposed to water and steam, so they need periodic ventilation and drying. But airing and drying will be ineffective if proper ventilation is not organized in the bath. Proper and constant ventilation of the steam bath significantly reduces the effects of wood absorbing moisture.

The main task of the ventilation of the bath is to maintain the temperature, humidity and freshness of the air in the steam room.

Bath floor ventilation

Air exchange in bath rooms is facilitated by a ventilated floor.

A wooden floor with constant contact with water loses its usefulness after 5 years. Requirements for ventilation through the floor:

• to create a flow, make small vents in the foundation of the bath;
• lay the floor, leaving gaps between the boards up to 1 cm;
• lay inlet openings in parallel walls (not forgetting to protect them with gratings from rodents);
• in order for the stove to work as an additional hood, lay the finishing floor above the level of the blower;
• after using the bath, leave the doors open until the floor in the room is dry.

Scheme of arrangement of the ventilation system in the sauna

Ventilation in the dressing room of the bath

With your own hands, in the presence of photo and video instructions, ventilation in the rest room of the bath and in the dressing room is the easiest to do, since they do not have direct contact with water. A natural or combined type of ventilation is used, when fresh air enters through the supply duct and is removed by a fan through the exhaust duct of the steam room, vestibule or bathroom. It is also possible to install ventilators, for which you will need a direct outlet to the street and a power supply connection.

In the dressing room, you can equip a natural or combined type of ventilation

Ventilation in the washing bath

For air exchange in the washing room, a forced ventilation system is often made, which is driven by an electric motor. Air flows lead towards the vestibule. The supply and exhaust channels are made of the same section, the input of the first is set above the ground level (by 2 m), and the output of the second is above the roof.

Ventilation in the steam room

The requirements for the microclimate of the steam room are special. It should warm up quickly, it should maintain an optimal level of humidity and be free from drafts. Therefore, for the steam room, the correct position and dimensions of the supply and exhaust channels, which are laid during construction, are relevant. To regulate the inflow and outflow of air, valves in the vents are sufficient, but with a large volume of the room, a supply or exhaust fan may be needed.

Scheme of arrangement of ventilation in the steam room

The above general principles for designing ventilation in a bath, videos and photos attached to instructions from network or other resources should help those who want to build a bath with their own hands to bring this desire to a concrete embodiment.

Do-it-yourself ventilation in the bath: how to do it right

Do-it-yourself ventilation in the bath - why do you need ventilation in the bath, how to make ventilation in the bath yourself, device principles, diagrams, instructions, photos, videos.

Do-it-yourself ventilation in the bath

In the process of arranging the bath, special attention should be paid to the organization of high-quality ventilation. Without proper air exchange, the steam room simply cannot be used normally. If desired, all work on the installation of the necessary systems can be done by hand. It is enough just to figure out the order of laying and connecting the main units and do everything in accordance with the instructions.

Why do you need ventilation in the bath?

Why do you need ventilation in the bath

Bath ventilation is very important. To avoid lengthy and not very interesting explanations, you can consider everything with a specific example.

The visitor to the bath stays in a room filled with a large amount of hot steam. The person inhales this vapor. We know that humans breathe in oxygen and exhale carbon dioxide. In the absence of sufficient air exchange, after a while a person will simply burn out.

That is why the ventilation in the bath should be as efficient as possible and made in full accordance with the technology. There are several types of ventilation systems. Explore the features of each option and choose the method that best suits your case.

Steam room ventilation

Ventilation systems are installed to solve two main tasks, namely:

• ensuring the supply of clean air to the bath;
• removal of exhaust air from the steam room.

Additionally, ventilation provides faster and better drying of the steam room. It is necessary to study the features of existing ventilation systems and understand the order of their installation in order to obtain the most efficient and high-quality air exchange.

It is important that during the operation of the ventilation system the temperature regime characteristic of the bath is not violated. Air exchange should be organized in such a way that there are no disturbances in the distribution of temperature flows in the bath. Cool air in the steam room can only be near the floor. And the higher the ceiling, the higher the air temperature should be.

Ventilation should not remove clean air from the bath. A properly equipped system supplies fresh air to the room and removes the exhaust air. Errors in the installation of the system will lead to extremely adverse consequences for both the bath and its visitors.

Mold damage to wood

The main types of ventilation systems

There are several types of air exchange systems suitable for use in a bath, namely:

• natural ventilation. The principle of operation of such a system is based on the use of the pressure difference inside the bath and on the street. The simplest and most inefficient option;

Exhaust fan from the steam room

Exhaust air is removed from the bath through a special ventilation duct. The air exchange installation technology requires that the duct be installed diagonally to the inlet through which fresh air enters the bath.

Take care of the ventilation device in all areas of the bath, and not just in the steam room. The dressing room, rest room and other rooms of the bath should also be well ventilated.

What you need to know about floor ventilation?

Quite often, the owners of the baths forget that the floor of the steam room must also be well ventilated. Such forgetfulness leads to a very rapid deterioration of the structural elements of the floor and, in general, a deterioration in the characteristics of the bath.

Floors are constantly in contact with water. Without properly organized air exchange, the floor will collapse very quickly, and the floor covering will have to be changed after 2-3 years.

You need to think about floor ventilation even at the stage of bath construction, because. in an already finished room, it will be much more difficult to create high-quality air exchange.

First stage. Make small vents in opposite walls of the basement. It is best to provide for these vents at the stage of construction of the concrete base of the bath. Creating any holes in an already finished structure will lead to some decrease in the strength of the building.

Ventilation in the steam room

Second phase. Make one ventilation hole in opposite walls of the serviced room. Through them, clean air will flow into the room. Holes must be through. Ready channels are recommended to be closed with special ventilation grilles. Such protection will not allow all sorts of rodents and other pests to enter the bath.

Ventilation in the bath

Third stage. When building a furnace, make sure that its blower is slightly below the level of the finished floor. Thanks to this placement, the oven will also start working in the hood mode.

Fourth stage. Lay floor boards. When laying them, you need to leave gaps about 7-10 mm wide. Through these cracks, water can flow down. If the liquid lingers on the floor every time, the boards will rot very quickly.

Quite often, floor ventilation is arranged “according to Bast”. According to this technology, fresh air comes from under the stove, and exhaust oxygen is removed through a hole under the ceiling.

In accordance with the requirements of fire safety, a metal sheet must lie near the sauna stove. It is near this sheet that a hole is created to supply fresh air to the bath.

For the device of such air exchange, a special exhaust duct is required. You can buy a box ready-made or assemble it yourself from boards. The inner surface of the exhaust box must be covered with foil. The size of the box should be approximately 15-20% larger than the diameter of the chimney.

Ventilation "according to Bast" is the best option for those cases when the stove is located directly in the steam room. In such a situation, ventilation ducts can be equipped even directly in a brick podium.

Pay attention to the installation location of the sauna stove. If the stove is located directly in the steam room, then natural air exchange is present initially. You just don’t need to rely solely on it - such ventilation only works when the stove is running.

The most optimal option for installing ventilation is the arrangement of air exchange channels on opposite walls of the bath. They must be at different heights.

It is not recommended to place the ventilation holes too high. Although in most other cases it is recommended to make an exhaust hole directly under the ceiling, slightly different rules apply in baths. If you place the hood directly under the ceiling, hot air will leave the room very quickly.

For baths, the optimal height for placing ventilation holes is a level equal to 1-1.5 m.

Bath ventilation installation guide

There are several simple ways to organize effective air exchange in the bath. Study each of them and choose the best one for your steam room.

First way. Create an opening for fresh air. It should be behind the stove, about half a meter from the floor. Make a hole for exhaust air from the side opposite to the inlet, at a height of about 30 cm from the floor level. Install a fan in the outlet.

Create an opening for fresh air

The lower you place the exhaust duct, the more intense the air exchange will be.

However, there is no need to be too zealous either. Try to make holes at the recommended height, as such values ​​are the most optimal. Openings are recommended to be closed with ventilation grilles.

The second way. With this air exchange, both vents will be on the same wall. Work will be carried out with a wall parallel to the stove. The inlet duct is created at a level of about 30 cm from the floor, the exhaust duct is at the same distance from the ceiling of the bath. The exhaust opening is equipped with a fan. Close open channels with ventilation grilles.

The third way. Make a hole behind the sauna stove for air to enter. Position the intake duct about 20 cm from the floor surface. The exhaust channel is made at approximately the same height, but in the opposite wall. The exhaust opening is equipped with a fan. Close open channels with ventilation grilles.

Fourth way. This air exchange option is great for baths, the flooring of which is laid with slots to drain water. Make an inlet behind the stove unit at a distance of about 30 cm from the floor surface. An exhaust hole is not made in the case of such ventilation - the exhaust air will leave the bath through the cracks in the floor covering, and only after that it will be discharged to the street through a common ventilation pipe.

Ventilated floors in the bath

Fifth way. Such ventilation is ideal for baths with a constantly working furnace unit. Install the inlet channel opposite the stove, stepping back about 30 cm from the floor. The function of the hood will be performed by the oven.

Thus, the procedure for arranging ventilation is practically the same in all the considered methods. Each of them involves the creation of one or two holes, only the place and height of their placement change.

You can also make the holes yourself. Brick walls are easily traversed with a puncher, and log walls with any tool suitable for this, for example, a wood drill. It is recommended to put plastic pipes into the finished holes. Don't forget about protective ventilation grilles. In the future, you are unlikely to be happy with uninvited guests in the form of rodents.

Do-it-yourself ventilation in the bath - step by step instructions!

Find out in what order the ventilation in the bath is connected with your own hands. A detailed guide describing all the stages of work. Photo + video.

Baths have always been famous for their healing properties. But in order to obtain a healing effect, it is necessary not only to listen to the advice of doctors, but also to organize the correct ventilation system in your own bath.

Those who have been in the classic rustic baths made of wood are unlikely to remember the presence in such paired exhaust vents. In fact, they are not there. After all, a small amount of fresh air entering the bath from cracks in the floor, window or doorway can meet the needs of 2-3 people.

But a bath designed for a large capacity, and even more so a brick one, must necessarily be equipped with a ventilation system to fulfill the following important points:

• fresh air intake, which prevents the accumulation of carbon dioxide in the steam room and preserves the health of people in the bath;
• air circulation, which allows you to dry the room after bath procedures. This prevents the appearance of unpleasant odors in the bath, the growth of mold fungi and helps to increase the life of the building without the need to replace wood elements;
• uniform distribution of heated air in the steam room of the bath.

Moreover, if the hood is arranged correctly, it should not lead to the following unpleasant consequences:

• to a drop in temperature in the steam room during bath procedures;
• violation of the correct stratification of air by temperature - the coolest layer should be at the bottom;
• removal from the steam room of clean air, and not saturated with carbon dioxide.

It is easy to breathe in a well-ventilated steam room, and it is pleasant to relax

How is bath ventilation

It is correct to provide for the bath ventilation system even at the construction stage, because it is at this moment that you can make the hood correctly and independently with the lowest labor and material costs. In addition, the process of making holes in the finished structure can lead to a decrease in the strength of the walls.

Air exchange in a bath is provided by means of two openings.

1. The supply opening is located at the bottom and provides fresh air to the bath.
2. The exhaust opening is located at the top on the wall opposite the supply opening. Thanks to the exhaust, the exhaust air is removed from the steam room. However, if the opening is located very close to the ceiling, then hot air is quickly removed from the room, which leads to a decrease in the temperature of the steam room.

This design allows you to adjust the direction of the air flow. At the moment when the bath is heated, all three holes are in a closed state. When people are steaming, the supply and lower exhaust openings are open. After bath procedures, all ventilation is in the open state, which allows you to dry the bath well.

Ventilation in the bath can be mechanical. In it, the air in the steam room circulates thanks to the injection equipment. In a more complex and expensive version, special devices monitor the air supply process, which, if necessary, start the ventilation system. The use of a mechanical hood allows you to place holes on any of the walls, as well as correct errors in the organization of natural ventilation.

In any case, to ensure air exchange in the bath, there are several exhaust schemes that differ from each other in the location of the holes.

Video - Ventilation in a bath with an oven - air conditioning

Methods for ventilation in the bath

Let's describe some of the most popular and simple ways to arrange ventilation in a steam room. They can be either with the use of fans, or carried out in a completely natural way.

Method 1

This is the one described above natural ventilation scheme with one inlet and two outlets. The inlet in such a system is made in the wall immediately behind the stove at a distance of 0.3 m from the floor surface.

To connect the outlets to each other, a box is used, which is made of wooden boards, a corrugated pipe about one meter long is laid in it. The holes themselves are provided with plugs that allow you to adjust the air flow, as described above. In addition to the plugs, you will also need gratings to prevent insects and rodents from entering the bath through ventilation.

This system is applicable for small baths.

Method 2

This is another simple and most common scheme for ventilating the bath space. In it, the supply hole is located behind the stove just above the floor (about 0.3 m). The hood is located at the same height, but on the opposite wall and is equipped with a fan that forcibly draws out the exhaust air.

Method 3

Method 3 is somewhat similar to the previous one. Only the air inlet is arranged at a height of half a meter from the heater, and the outlet is just above the floor (about 0.2 m). The hood is equipped with a fan.

Method 4

Method 4 is used for baths in which the steam room has only one wall facing the street. In this system, air inlet and outlet openings are located on the same wall opposite the stove. Air enters the lower hole, located at a height of 30 cm from the floor, and exits the upper one, which is located 30 cm below the ceiling and is equipped with a fan.

Clean air enters the room, collides with the stove, heats up, rises and is directed through the outlet to the outside.

Method 5

Method 5 is suitable for baths in which there are small gaps of half a centimeter between the floor boards. The inlet is located behind the stove. The cooled and exhausted air descends to the floor and exits through cracks in the underground, where there is an exhaust hole in the basement wall, connected to a ventilation pipe that discharges air flows above the roof.

Method 6

If in your steam room the stove is heated for the entire period of the bath, then the blower can itself perform the function of ventilation, or rather, the hood. In this case, only an air inlet is needed, which is located near the floor opposite the stove. The blower should be slightly lower than the finished floor.

Step-by-step instructions for installing ventilation

When arranging a bath with ventilation, it is important to observe the following conditions:

• if the bath is adjacent to a residential building, then the air flow should go in the direction from the housing to the steam room;
• the exhaust hole is connected to a box or pipe, which is necessarily brought out above the roof of the bath;
• the hood should not be done over the shelves in order to exclude the effects of a draft on steamed people.

In general, the ventilation installation process can be described as follows.

Step 1

In selected places, at the construction stage, or prepare after construction, inlet and outlet openings, the cross section of which should be 10-20 cm.

Step 2

Prepared holes are equipped with boxes made of metal, plastic or wood.

Step 3

Install an exhaust fan if necessary.

Note! For baths, it is necessary to use ventilation equipment made of heat-resistant material and with a protection class of at least IP-44.

Step 4

Mounted on grille holes and plugs.

Step 5

The outlet is connected to a pipe that is led out above the roof.

Note! In addition to ventilation of the room, it is necessary to ensure air circulation under the floor. To do this, at the construction stage, holes are made in the basement on opposite sides, which are covered with gratings to protect against rodents.

In such simple ways, you can arrange bath ventilation, ensuring a long service life of the steam room and a comfortable stay in it.

Video - Ventilation scheme in the bath

Among the most important indicators are traditionally called temperature and humidity level, forgetting about another fundamental indicator - air exchange. This is very reckless, because even if you carefully insulate the room and achieve comfortable humidity, staying in a steam room with stale air will not only be uncomfortable, but also dangerous. If you want to avoid such a fate, take care of the ventilation in the steam room in advance. You can even equip such a system with your own hands - let's take a closer look at how to do it right.

Before proceeding to a description of the features of the direct technological process, let's first clarify why ventilation is necessary in the bath in the steam room. It is no secret that many skeptics consider its arrangement only an unjustified waste of time and money, but this is far from the case - the lack of a ventilation system can lead to at least three sharply negative consequences.

Types of ventilation systems for the steam room

Ventilation in the bath in the steam room can be of three types:

• natural;
• mechanical;
• combined.

The natural system assumes that air circulation is provided by the difference in pressure and temperature levels in the steam room and on the street. The principle of operation here is simple: first, hot air rises to the upper zone of the steam room, and then leaves through the exhaust hole to the street, thereby discharging the atmosphere in the bath - this creates the conditions for drawing in new air through the supply hole. The advantage of such ventilation is minimal financial costs. But here one nuance must be taken into account: with insufficient insulation of the structure, the natural air duct will be an obstacle to high-quality heating of the bath.

Steam room ventilation scheme

Mechanical ventilation operates by means of special devices that control the exit of exhaust air and the supply of new air flows into the steam room. As a rule, various kinds of fans act as such devices. The advantage of the mechanical system is that ventilation equipment can be installed in almost any area of ​​the room.

Advice. A classic duct fan is not suitable for a bath, as it will not endure the harsh conditions of a steam room - it is better to use special models made of glass-filled polyamide that can withstand high temperatures - up to 130 degrees.

Combined ventilation combines elements of both natural and mechanical systems. It functions in this way: mechanical devices are responsible for extracting the exhaust air, and fresh air enters through a separate supply opening.

Ventilation schemes

There are at least five working ventilation schemes that can be used in a steam room - choose a specific option based on the design features of your Russian bath.

• The supply opening is behind the stove at a distance of 50 cm from the heater, and the exhaust opening is opposite, at a distance of 20 cm from the base of the floor. The air is removed forcibly - this is provided by a fan built into the lower opening.
• The supply opening is behind the heater at a distance of 30 cm from the floor base, the exhaust opening is at a distance of 20 cm from the floor on the opposite wall. The air is forced out - with the help of a fan. The main feature of the scheme is a very high rate of heating of fresh air.

Bath ventilation systems

• Both openings - both flow and exhaust - are placed on one side directly opposite the stove, but at different levels: the first is at a distance of 30 cm from the base of the floor, the second is 20 cm from the ceiling. The system operates using a fan, which is mounted in the exhaust opening.

Advice. Such a scheme is suitable for baths with an internal placement of a steam room - when the room has only one outer side.

• The supply hole is behind the stove at a height of 20 cm from the base of the floor. There is no exhaust opening - instead, a special leaking floor is provided: the exhaust air masses pass through its slots to the ventilation pipe. Such a system guarantees the performance of an additional function - prompt drying of the floor.
• The supply opening is opposite the stove at a distance of 20 cm from the base of the floor. The role of the exhaust hole is assigned to the blower. Such a scheme is suitable only for those baths where the heater operates continuously.

General rules for organizing ventilation in the steam room

Whichever version of the ventilation system you choose, you need to equip it according to certain rules.

Firstly, it is desirable to make all holes for ventilation even at the stage of building a bath, since punching channels in an already finished structure is a very difficult process. The ideal option is to decide on a suitable scheme during the design of a Russian bath in order to make all the necessary changes to the work plan in a timely manner.

Secondly, the dimensions of the exhaust opening should be approximately the same as the dimensions of the supply opening. In any case, the "output" should not be less than the "input", otherwise it will not be possible to ensure a full outflow of exhaust air from the steam room. And in order to speed up this process, it is allowed to increase the dimensions of the exhaust opening and even equip two “exits” in one room.

Make a valve to block the air flow in the cold season

Thirdly, in order to regulate the airflow of the steam room, all ventilation openings must be equipped with special shutters or shutters. They will come in handy in several situations: when heating the steam room, when the vents will need to be covered to quickly raise the temperature to the required level, as well as in the frosty season, when cold air will actively rush into a warm room.

Fourthly, the cross section of the ventilation hole should be related to the area of ​​the steam room in the proportion: 1 cu. m area - 24 cm section. If the holes are small, the air in the room will not be able to quickly update.

Of course, organizing ventilation in the bath with your own hands is not an easy task. But it is fundamentally necessary: ​​without air exchange, you can forget about the comfort, safety and durability of the steam room. Now you know the main rules and subtleties of this work - if you stick to them, you will definitely be able to make a high-quality ventilation system even without professional help.

Ventilation in the bath: video

Bath procedures heal and relax. However, without good ventilation in the steam room, being in it can end in problems. In addition, if wooden shelves and walls are not dried regularly, they will not last long.

Wood from the abundance of moisture will inevitably begin to deteriorate. However, it is not so difficult to make effective ventilation in the bath with your own hands. There are several schemes for its device in this room. You can always choose the best option for self-implementation.

The main types of ventilation for baths

The classic Russian bath is a small room. Not all types of ventilation can be implemented in it. Often in complex air exchange systems in this case there is no need. And most owners of country cottages and summer cottages, who build a steam room with their own hands, prefer to look for the simplest solutions.

All variations of ventilation systems are divided into:

• natural;
• forced (supply, exhaust and combined).

Air distribution in the steam room with proper ventilation

In the first case, ventilation is built so that the processes of air exchange in the room occur due to natural draft and convection. In the second, the air is forced to move around the room with the help of a fan installed on the exhaust, inflow, or both directions at once.

To organize ventilation in the bath, you can use all these methods. However, the natural option is more preferable. It is cheap, non-volatile and does not require supervision of electrical equipment. But in some cases it is not enough.

Air flow during natural ventilation

For example, it was decided to make a steam room in the house itself, and not in the form of a separate building on the street. Then only exhaust or supply ventilation can help. It is not recommended to equip a combined supply and exhaust analogue with a heat exchanger or electric heater in a bathhouse due to the high cost and complexity of installation. And in the steam room, such an option with additional air heating is simply not needed.

Air circulation in the bath, depending on the location of the stove

Ventilation schemes for steam rooms and baths

It doesn't matter if there is a fan in the duct or not. Ventilation in the bath is always done so that there are two ventilation ducts (windows or openings to the street). One input goes to the supply, and the second output to the exhaust. Moreover, ideally, they should be located on opposite walls and have doors, valves or latches to adjust the draft.

On the one hand, proper ventilation in the steam room should ensure a constant supply of oxygen inside, and on the other hand, it should not draw heat too quickly outside. If the air exchange is made too intense, then you won’t save up any firewood for such a bathhouse. All heated air will immediately go outside.

Temperature distribution in a ventilated steam room

The wood stove and electric heater continuously burn oxygen during operation. And the ventilation in the bath should also continuously replace it so that those who come to take a steam bath do not feel discomfort. Therefore, bath ventilation windows should have valves that will allow you to regulate the volume of air supply and exhaust.

The most effective schemes for placing ventilation windows in the bath are considered (direction "inflow" - "exhaust"):

1. On the wall near the stove - on the wall opposite above the shelf.
2. On the wall by the stove - through the cracks in the floor and further into the outlet of the dressing room.
3. On the wall under the shelf - in the chimney.
4. Through an outlet in the foundation and a crack in the floor - on the wall under the ceiling.

Types of hoods

In the first case, cold air is heated at the stove and goes up to the opposite wall, where the shelves are located. When implementing the second version of bath ventilation, the heated air masses first rise to the ceiling, and then, due to the draft, they fall and are pulled out through the cracks between the floor boards.

In the third scheme, a small pocket with stagnant hot air is created above the shelf. But such ventilation still draws oxygen into the steam bath and in sufficient quantities.

The fourth option involves the presence of vents in the subfield. It is more difficult to execute it in an already built bath with your own hands. In a poured concrete foundation, punching holes for ventilation is a problematic task. But with it, floor boards below the ground will always dry quickly after bath procedures and will last longer.

Methods for locating ventilation in the bath

The entrance window should be located at a height of 20–40 cm from the floor, and the exit window should be 15–20 cm below the ceiling. It is best if both of them are the same size. And both should be provided with blinds or a valve.

Exhaust and supply ventilation is usually done with a duct fan, which is mounted directly into the duct. It should be chosen for a bath with increased protection against steam and high temperature. All mechanical and electrical components of this fan must have improved waterproofing. IP protection here should be chosen at least "54".

You can always ventilate the steam room by simply opening the doors and windows in it. You don't even need air vents for this. So the internal hot air is replaced by cold external air in just a couple of minutes.

Hot air circulation in the steam room

However, it is difficult to call proper ventilation through open doors. In this case, all the steam ends up in the dressing room, where it instantly turns into condensate on the walls and interior items. This type of “volley” ventilation should be resorted to only in extreme situations.

Important nuances of the do-it-yourself bath ventilation device

If everything is done correctly, then you need to plan ventilation in the bath at the design stage. In an already finished building, it is more difficult to make ventilation holes even in wood than at the same time as laying a log house. The area of ​​​​the vent should be about 200-300 square meters. see. This is more than enough for the majority of small square steam rooms.

Bath ventilation scheme

Another important point is the dowels in the walls, which fasten the logs together. If they are metal, then when creating vents, it is important not to run into these rods.

It is better to generally move the vents away from them as far as possible to the side. It will still not be possible to completely get rid of moisture, so the metal of the fasteners should be kept away from it.

Steam room plan with ventilation

Vents are not recommended to be placed on the same wall. In this case, the ventilation will be such that the air flow will immediately go from the bottom up, without circulating through the steam room. Holes should be made in height no more than the section of the log (beam). The required opening area is easier to select by increasing its length. It is impossible to build an outlet between two logs. This is more difficult to perform and can lead to damage when the log house settles.

Forced ventilation in the bath

The outlets of the steam room ventilation ducts from the outer wall must be protected from precipitation. If water gets inside the holes, it will be inside the wooden walls. And for a long time after that, the wood is unlikely to stand without decay.

When making ventilation in a Russian wooden bathhouse, the outlet vent should be led into its wall, and not into the ceiling. Bath steam should go immediately to the street. There is nothing for him to do in the attic. There are wooden rafters, to which excess moisture is contraindicated.

There is already a large review material on our website, so now it’s worth talking separately about the hood in the bath: how it works, how it works and how to make it yourself.

Hood in the bath: depending on which bath

Baths are built from a variety of materials, each of which has its own specifics. This also affects the ventilation systems, which have their own characteristics in each case. We will talk about their differences in terms of organization below.

Extractor in the sauna

A sauna or a Finnish bath differs from a Russian one in a small amount of steam (it is practically a dry bath) and a high temperature (which can reach up to 130 degrees!). During your stay in the sauna, there is a clear rule regarding ventilation: the air must be changed at least 6-8 times per hour. And this requires good controllability of air flows, replacing exhaust air with fresh air less than every 10 minutes.

Ideal option for a sauna, (convection type). Let us briefly repeat that it operates on the principle of an “inverted glass”:

• ventilation box, standing diagonally from the oven, takes in ambient air;
• brings it out through the roof (wall);
• below, next to the stove, there is an inlet through which fresh air enters;
• the oven heats the oxygenated air, it rises and is distributed throughout the sauna.

Flow regulation is carried out with the help of dampers that regulate the openness of the box and the inlet. An important point in this case is the constant operation of the furnace, because it is it that performs the function of a “pump”.

And even if the hood in the sauna is done according to a different scheme, the task will remain the same:

• controlled frequent air exchange;
• good warming up incoming fresh air;
• impermissibility fast air currents (more than 0.3 m / s), i.e. drafts.

In a log cabin

The log house was invented long before the laws of physics on which natural ventilation is based took shape. Nevertheless, the builders of log baths actively used these laws so that the owners of the bath would not suffocate in the process of soaring, and the bath would stand for decades due to it. (Of course, the hood in the log cabin will not save her from a fire, but from rot - it may well.) In the log house, the air flow was provided by the lower rims, which were intentionally laid freely, that is, they had slots through which fresh air was “stretched”. In addition, the door to the steam room below did not fit snugly against the floor.

Depending on how exactly the bath from the log house was heated - “in black” or “in white” - it also depended on where the exhaust air went.

• In a heated "black" bathhouse, the stove does not work during the soaring process, so an open window or door was used for outflow.
• In the melted "white" bath, the outflow was carried out through the chimney. The oven was working.

In principle, nothing prevents organizing the ventilation of the log house in the traditional way today. But it is necessary to decide quickly, even at the construction stage. Because a more modern solution should already be included in the project. Alternatively, you can punch holes (supply and exhaust) directly onto the street and supply them with plugs or dampers. One is next to the stove blower, the second is above the upper shelf on the adjacent or opposite side. Or make two exhaust holes - one above, the other below the top shelf. Another option is to make blinds at the bottom of the steam room door, and an exhaust hole under the ceiling of the shower room.

IMPORTANT! If there is no desire to make an exit to the street, you can lay air ducts, but then you will have to install a forced ventilation system instead of a natural one.

In a foam block bath

A foam block bath is no exception to the rule that you need to think about ventilation when designing a bath. It's easier than hitting ready-made walls. In order to provide a bath of cellular concrete with sufficient air circulation, which will save the structure from excess moisture, it is necessary to lay pipe trimmings at the time of pouring the foundation formwork, which will then become air ducts.

For a bath that is not in a lowland and is not surrounded on all sides by buildings, two air vents are enough on opposite sides, otherwise they are made 4. Do not forget about the ventilation gaps between the walls and the insulation.

The roof must also be ventilated, receiving inflow from the roof overhangs and giving air through the raised ridge. In the premises, supply and exhaust openings are made according to one of the standard schemes.

In case of insufficient natural ventilation, it is recommended to install fans on the hood from the foam block bath.

Extract for a bath: in which department?

If we leave aside the issues of ventilation of walls, foundations and roofs already discussed in other articles, there are rooms - a steam room, a washing room, a dressing room and a rest room - where you need to organize air circulation. At the same time, there are certain standards regarding ventilation in each of them and the specifics of the manufacture of the hood. But first things first.

Extractor in the steam room

For those who soar, the extract in the steam room of the bath is a guarantee that they will come out of there alive and healthy.

IMPORTANT! You can not leave the steam room without ventilation holes at all, this is a big risk of getting black or losing consciousness and suffocating with carbon dioxide. Can't just make one hole- so the ventilation does not work.

The method of ventilation of the steam room can be natural (due to the laws of physics) or forced (due to fans). Openings can lead to the street, to air ducts and to neighboring rooms. On the ventilation openings, either blinds or dampers are placed. Air inflow can be organized through the bottom of the steam room door, spaced 3 cm from the floor or with blinds at the bottom of the door leaf.

With your own hands you will have to make only a box. Everything else (corrugation, valves, gate valves, dampers) is on sale. Fans (if needed) vary in diameter and power. Relays can be used to automatically control forced ventilation. Holes in the wall are either left during construction, or they make their way in an already built bath.

Useful video

See how the craftsmen made a box for extracting ventilation from the boards:

In the washing

According to the already mentioned standards, the air circulation in the washing room per hour should be a multiple of 8 room volumes for supply ventilation and 9 for exhaust. It means:

• that the dimensions of the exhaust opening will be more inlet;
• or exhaust will be two on one supply;
• or put on the hood fan.

In any case, this is an intensive air exchange, which is intended primarily for quickly draining the car wash. During the washing process, it is not required, so it is regulated by dampers.

By the way, air inlets can be made in the dressing room or rest room, and exhaust holes in the washing room. This will allow you to ventilate two rooms at once. Similarly, the hood is done in the bathroom, and forced to create low pressure. Then the air will be drawn from the neighboring rooms and leave through the forced exhaust. Thus, the rooms are connected by through holes, which on the one hand will be supply, and on the other - exhaust.

The components of the hood in the washing bath do not differ from those used in the steam room.

How to make an extract in the bath

This has been said many times before, but it's worth repeating: the cost of arranging ventilation will increase many times if it is done late after completion of construction. At the same time, the principle of creating ventilation in the bath remains unchanged: it is necessary to create conditions for the inflow and outflow of air from the premises. So, how to make a hood in the bath with your own hands or the hands of professionals.

Hood in the bath: scheme

There are many schemes, but any one is suitable for understanding the principle of ventilation. Most often, ventilation schemes for the steam room are offered, but the scheme for the entire bath, with explanations, is of much greater interest.

Look at the sketch. It shows that ventilation is carried out in the washing room, steam room and rest room. Moreover, the air flow is carried out from one pipe to two points, one of which is in the steam room, and the second - in the rest room. The hood is located in the washing room, and in the steam room, and in the rest room. Let's describe all the ventilation devices in each room:

1. washing- a metal-plastic window, an adjustable hood that takes air through a diffuser located on the ceiling. From there, the air escapes through a pipe to the roof.
2. steam room- an insulated window located below the shelf, an adjustable hood, which is a vertical box, the intake hole of which is 150 cm² located below the shelf, and the exit from the pipe to the street is near the ceiling. One of the channels of regulated inflow near the stove, cross-sectional area 150 cm².
3. Restroom- adjustable hood, which is a box with a cross section of 150 cm², the height of the intake hole is 30-40 cm from the floor, exit through the pipe to the street near the ceiling. Regulated inflow through the second channel with an exit near a furnace fire chamber.

DIY: how to do it right

Do-it-yourself exhaust in the bath is not something that cannot be done, but you need to approach the matter prudently and slowly. In order to independently make the hood, you need to prepare materials according to it. It is also necessary to calculate the cross section of the ventilation pipes.

IMPORTANT! The inflow volume must be equal to or less than the exhaust volume.

To do this, you need to know the volume of the room and the multiplicity factor (how many times the air should be updated per hour) - it is in the regulations. In the main air ducts, the speed of movement should not exceed 5 m / s, in the branches - 3 m / s, in the steam room - 2 m / s, natural ventilation - up to 1 m / s. Further in the table we find the value of the pipe section, which most closely gives the desired volume at a given speed.

Knowing the cross section, it remains to prepare a corrugation or pipes of the appropriate diameter, which at one end are mounted indoors at the desired height according to the diagram, and with the other they go outside. Self-tapping screws, metal tape and polyurethane foam are used for fastening. The openings are supplied with shutters in the room, gratings at the exit. By the way, ventilation should be cleaned once a year..

Useful video

Watch a short video showing ventilation in one bath:

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Well, now you know exactly how to properly draw a hood in the bath in order to save yourself, your household and guests from suffocation in the bath. It remains only to correctly apply the information received.

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