Installed to organize air exchange. Any residential building/complex is equipped with ventilation shafts, which are rarely serviced by specialists and often fail to cope with their task. The bathroom differs from the rest in its high humidity, accumulation of various odors and small dimensions. Therefore, to the question “should I put a fan in the bathroom?”, the answer is yes.
This hood device will provide:
- High-quality ventilation.
- Elimination of unwanted odors and excess moisture.
- Temperature regulation.
Exhaust air contains dust particles, viruses, harmful vapors, and carbon dioxide. In addition, the room temperature is always higher. All this negatively affects human well-being, health and the preservation of a normal microclimate.
Do you need a hood in the bathroom if there is a window?
In this case, the answer will also be positive - it is definitely necessary. The principle of operation of the ventilation system in any room is the outflow of exhaust air masses and the subsequent influx fresh air from outside (i.e. from the street).
With natural ventilation, the inflow is carried out through open windows, doors, through leaks/cracks, and air exhaust is ensured due to natural draft (through ventilation shafts). Therefore, if there is a window in the bathroom, this will not ensure the complete removal of waste air masses. In addition, in winter period the air and temperature outside will not allow you to open the windows often.
Should I put a fan in the bathroom?
If dampness, condensation appears, or if there is a toilet in the bathroom, exhaust fan simply necessary. Its advantages:
- The device will eliminate unnecessary odors from this room, moist air, therefore, there will be no traces of dampness (mold, mildew, rust).
- A working hood will improve air circulation throughout the home.
- There will always be fresh and clean air in the bathroom.
Is it possible to put a fan in the bathroom and which one?
All devices for ensuring air circulation are differentiated from each other. Accordingly, there are models of exhaust fans that are designed for installation in bathrooms. They are distinguished by increased protection from water, high performance, noiselessness and the presence of various options, including sensors, timers, cord switches, etc. The shape and design of the devices are also variable.
Buying a bathroom exhaust fan is easy. To do this, you need to determine the necessary technical parameters of the device:
- Noise level. Most models have a standard noise level. There are devices whose operation is almost silent.
- Performance. How to choose bathroom fans taking this criterion into account? Everything is very simple: to do this, you need to calculate the volume of the room and multiply this value by the rate of air change (7-9 for a bathroom). The result is a figure that indicates the required performance of the device.
- The presence of automatic blinds, a hygrostat, motion and light sensors, a timer - all these options allow you to use the device with increased comfort and savings.
Also, the hood fan can operate at several speeds with smooth regulation.
Not everyone today can afford to install a full-fledged air conditioner. Meanwhile, the heat in summer reaches such exhausting heights that it is unlikely to survive without specialized equipment.
Buy a fan - this is optimal solution, which will suit you both in terms of price and quality of work. In addition, you can make an improvised air conditioner from a household fan!
Fan wear: how to avoid premature failure?
The point is this. The fan rotates thanks to the shaft of the electric motor on which it is mounted. Therefore, there are only two weak points in this design:
- fan impeller shaft;
- windings of an electric motor.
In the hottest months of summer, the fan operates around the clock and many users are afraid for the equipment - will it withstand such a pace of work? The manufacturer and materials that were used should also be taken into account.
Chinese manufacturers achieve maximum affordable prices by using disgusting plastics. Over time, they lose density and become soft, especially if direct sunlight falls on it.
However, if you regularly Maintenance fan, will it last a long time without creating any problems?
How is the fan maintained?
The shaft on the fan must be in a rigid coupling. Over time, constant air pressure will be applied to the plastic. Eventually, the shaft in the impeller will begin to slip.
This can be heard by the sound of the fan operating.
To fix this problem, a few drops of superglue will be enough. With overheating of the windings, everything is much more complicated. If we are talking about an electric motor with air cooled, then it should be especially effective in summer.
In general, no one prohibits using household fans for several days in a row. But we should not forget that they are very “voracious consumers” of electricity.
This must be taken into account when creating a comfortable indoor environment.
A specialist will tell you how to choose the right household fan:
Many residents apartment buildings faced the problem of cooling their home in the hot summer. As a rule, residents who can afford it install expensive air conditioners that effectively cool the apartment. However, there are others no less effective ways cooling rooms using available fans. In this article we will take a closer look at how you can cool your apartment and your room using a fan without significant costs and create a favorable microclimate in your house or apartment during the hot season.
Method 1
There are several most current methods, which allow you to quickly reduce the temperature in the room to a more comfortable one.
We need a basin with cold water, floor fan, a plastic bottle with frozen water and a piece of gauze.
Take gauze and thoroughly wet it in cold water. After this, you need to throw moistened gauze over the fan. To do this, lower any of the 4 ends of the gauze into a bowl of cold water, which will stand next to the fan. After that, turn on the fan and room air together with the circulation it will begin to cool the room. To achieve maximum effect, place a plastic bottle with ice or very cold water in a basin. Depending on the fan diameter and installation height, you will need to select the gauze size.
Method 2
We offer you one more effective method, which will help answer the question - how to cool yourself and a room without air conditioning? For this we need a floor fan and a large container for water. It is best to use cool water, and the larger the container for it, the faster the room will cool. We install the fan in the required position and place a container of water in front of it. During intense airflow warm air room, the water will begin to evaporate. And thus the temperature in the room will drop by 2-5 degrees.
Method 3
Using a floor fan, you can effectively cool rooms in the evening or at night. To do this, you need to turn the fan in the direction of the window. This will allow hot air to escape from the rooms. In other rooms, all windows will need to be opened completely. In this case, a draft results when the influx of fresh air from the street pushes hot air out with the help of a fan. Thanks to this, the indoor temperature will be equal to the cooler outdoor temperature.
Method 4
For this we need a floor fan and empty plastic bottles by 1.5-2 liters. Pour cool water into plastic bottles and freeze. After that, we place bottles of frozen water in each room. We install a floor fan in the living room, which will cool the room more efficiently. When the water has melted, you should put it back in freezer plastic bottles and repeat the procedure again.
Tip 1
To keep your rooms cool and fresh, you should perform wet cleaning all premises. As a rule, it is best to perform wet cleaning with cold water in the early morning, when the rooms have not yet warmed up.
Tip 2
Curtains in rooms can be wetted with clean, cool water. This equally effective method allows you to reduce the temperature in the premises. To do this, you need to use a regular sprayer or spray it on the curtains in another way. cold water. In extreme heat, it is best to repeat the procedure as often as possible.
Summer is characterized not only by the season vacations, trips to the sea or other bodies of water and summer holidays. This time of year is also accompanied by very warm and sometimes unbearably hot weather. Many publications have been written about how harmful high air temperatures are for humans, so it is understandable that most people want to make the microclimate in their home more or less comfortable in the summer. Certainly, ideal option In this case, it is to install an air conditioner, but it is quite expensive and not everyone can afford it. Therefore, in summer, other methods of cooling the air in the house are quite in demand.
First, let's look at how exactly cools down our body in hot weather. There are four methods of heat transfer from the skin to environment- convection (heat transfer to moving air), conduction (heat transfer to stationary, cooled air), evaporation (cooling by evaporation of sweat) and radiation (radiation from the body infrared radiation). In everyday life, it is possible to use two methods - you can cool the air (which is what the air conditioner does) or make it move and take heat away from the body. You can, of course, use evaporation, for example, douse yourself with water or take a cool shower, but these are temporary measures and do not affect the microclimate in the house. Therefore, in the absence of air conditioning, it is necessary to increase ventilation in the house, which will cause the air movement we need. However, this also needs to be done correctly.
The most widespread household appliance The one that is used to create movement is the fan. However, no matter how pleasant it is to sit under the flow of air from it in the summer heat, it is still not worth doing this - such “blowing” is fraught with the occurrence of colds and a decline in immunity. It is better to install the fan in such a way that it causes a slight movement of air throughout the room, for example, placing it in a corner and directing the air flow diagonally across the room. Of course, you are unlikely to achieve a quick feeling of coolness using this method, but in any case it will be more comfortable than outside.
To make the movement air were more noticeable, you can use two fans - one blows air outside through the window, the second stands near the door or opposite the first at the other end of the room and drives the air in the same direction. This direction of ventilation is used during the daytime, when the air temperature outside is significantly higher than room temperature. In the evening or morning coolness, you can change the direction or simply not turn on the fans - the cool air will penetrate into the room on its own. Moreover, even in the absence of fans, using the same principle in the summer, it is worth ventilating the rooms - open the windows in the morning and evening or at night and close them tightly during the day - a sluggish draft from the window will not save you from the heat, but will only additionally heat the air in the room.
Main open windows at least at some time of the day for ventilation - during the hot part of the day in apartment buildings practically does not work, which leads to poor air exchange and accumulation of breath products in the apartment. This situation can be partially corrected by using special small fans that are installed in the ventilation hole or at least turning on a regular kitchen hood for a couple of hours a day.
Use fan It can be done more efficiently with the windows closed, forcing it to “drive” cooled air. To do this, you can install or place several containers of refrigerant behind the fan blades, which are placed in cooler bags and are widely available. If they are not available, you can use frozen water bottles to cool the air. Hanging wet towels around the house or apartment, contrary to popular belief, is ineffective - to cool the air at least a little noticeably, you need to cover the entire room with them. The same applies to the recommendations to spray cold water from a spray bottle - this will give a temporary, very short-term effect. In addition, if the windows are completely closed, this will cause a significant increase in humidity in the house, which can negatively affect furniture and coverings, and can also be a provoking factor for diseases such as bronchial asthma.
Of course, all these methods will not create the same comfort in the apartment as using air conditioner, however proper ventilation at home at high temperature air will create the necessary movement, which will significantly contribute to the removal of heat from the human body and will make it possible to more or less painlessly survive the hot season.
Availability high humidity in the kitchen or bathroom says only one thing - there are difficulties with ventilating the premises, the cause of which is poorly functioning natural ventilation. This problem can be solved by installing an exhaust fan.
The principle of operation of natural ventilation, traditionally used in most houses and apartments, is the difference in the density of internal - warm and external - cold air, formed in vertical ventilation ducts. But this scheme comes into effect only if there is access to fresh air in place of the diverted air, which is what additional entrance openings in houses are intended for. A decrease or increase in ventilation intensity can only be adjusted by adjusting the damper of these holes. However, if even if the ventilation grille is sufficiently open, natural ventilation is clearly not enough (it’s too stuffy and there’s nothing to breathe), then the only option left is ventilation by regularly opening the windows.
Of course, ventilation is not always flawless, but accusations of defectiveness are not always justified. First of all, it is worth making sure that the veterinary channels are clean and passable, since often over time, when long-term operation the resulting cobwebs and the debris that gets there clog the ventilation passages to a greater or lesser extent, which, accordingly, becomes an obstacle to the ventilation of the premises. The second reason for poor natural ventilation is a dirty ventilation grille mesh.
Manufacturers of ventilation grilles supply them with plastic nets that protect the apartment from the penetration of insects from outside. There is no hood in the kitchen or it is not good enough functionality contribute to the rapid accumulation of fat drops on the cells of the plastic grid, which, accordingly, leads to their narrowing. The mesh gradually turns into a kind of barrier, dense and completely impenetrable, which is the source of the problem. Usually it is enough to replace the old mesh with a new one so that the problem with high humidity is eliminated, but a mesh filled with fat deposits is nothing more than the result of unsatisfactory and weak operation of the hood's grease trap, and this problem also needs to be solved.
As previously stated, those most predisposed to high humidity In the apartment there are premises - a bathroom, a bathroom and a kitchen. Therefore, ventilation in houses and apartments is structurally designed so that the ventilation openings are located precisely in these rooms. To enter a vent, air must pass through several zones through gaps at the base of doors or through specially designed grilles.
In cottages and private houses, the ventilation system may include exhaust openings, including in saunas, indoor swimming pools, boiler rooms, dressing rooms and storage rooms. Due to the direction of air towards rooms - sources of the greatest humidity and odors, the air in residential areas almost always remains fresh and clean.
Unfortunately, natural ventilation is not always able to cope with its task. Its functioning is influenced not only by the size of the inlet openings, but also by the direction of the wind, its strength, the placement of nearby high-rise buildings and other equally important factors. The most undesirable and unpleasant consequence of poorly functioning ventilation is too much humidity, which causes mold and mildew to form on the walls and ceiling. Many people try fungicides in this case, which in itself does not eliminate the causes of the phenomenon and does not stop the process.
Experts advise not to delay in identifying the source of poor ventilation when high humidity and a characteristic smell of dampness appear. If the complication is caused by insufficient draft in the ventilation ducts, wall fans will come to the rescue in this situation small size, which are installed to replace the ventilation grille. They will not take much time to eliminate a significant amount of used air, ensuring sufficient air exchange in the room.
How to choose and install an exhaust fan
Before purchasing a fan, you need to measure the ventilation holes. They are often squares with a side of 14 cm, although sometimes there are round holes with a diameter of 15 cm. It is extremely important that the fan has a cover that covers the ventilation hole, and the diameter of the impeller should be slightly smaller. The performance of exhaust fans, sometimes found on sale, which can be mounted in ventilation holes with a diameter of only 10 cm, is clearly insufficient for high-quality air exchange in either the bathroom or the kitchen.
The productivity of exhaust fans should be 100 m3/h. There is a certain pattern: increased productivity leads to more quick removal polluted air, which consequently increases noise levels and leads to higher energy consumption.
As for the noise. Absolutely any working fan is a source of characteristic sounds, including those transmitted through veterinary ducts. In addition, when the fan is turned on, it also becomes a source of vibration transmitted along the walls. Therefore, if there is an assumption that the neighbors will be unhappy with the presence of a source of sounds and vibrations that irritate them installed in the kitchen or bathroom, it is better to look for the quietest model in advance, although such modifications are somewhat more expensive than usual. Often the design provides for the presence of a ventilation hole directly next to the shower. Here, the solution to the problem will be to choose a waterproof model that operates not from 220v, but only from 12v. It is important to remember that installing an exhaust fan reduces almost nothing natural ventilation, since the outlet is almost completely blocked by the impeller, and this, accordingly, is an indicator of the need for periodic operation of the fan.
Usually it is connected together with bathroom lighting, which is very convenient and straightforward: air is removed directly at the moment it is contaminated. The lighting goes out and its work stops. This method, which is appropriate for a bathroom, is not suitable, for example, for a kitchen where there is no need for constant lighting. But here, too, there is a way to solve this problem - relays with delayed shutdown will help prolong the operation of the fan.
The only not very pleasant moment when installing an exhaust fan is damage to the finishing of the walls or ceiling, since it is necessary to connect the wire to ventilation hole. The option of decorating it in a special plastic box will not be very successful - it will not be very aesthetically pleasing and unattractive. To avoid these difficulties, you can purchase a fan with built-in photocells that are sensitive to turning on the light. When installing, they do not need to be combined with light switches. The cost of these models ranges from 1,500 to 2,000 rubles.
In rooms where there are windows, the relationship between the fan and the light does not make sense, so each has its own switch. Another option is a model with a built-in switch on the cord, which is not entirely convenient, since it becomes necessary to remember to turn it on. In any case, no matter what modification is chosen, it will become an obstacle to the occurrence of high humidity and, as a result, mold and mildew.
Alternatively, a motion sensor can be used to signal the start of operation if there are people present in the room. It will be more convenient to purchase an air humidity sensor, although it is very expensive (2,700 rubles), but in this case manual control will not be needed.
It’s not enough to choose a fan model; in addition, you need to decide exactly how it will be connected. It must be taken into account that fans based on photocells, with humidity and motion sensors and cord switches are independent from other switches and only need to be connected to distribution box, what is their huge advantage.
The process of installing an exhaust fan will not cause any particular difficulties, however, if you do not have experience working with electricity, it is better to leave the connection to a professional. The fan can be installed in the hood opening by disassembling the ventilation grille and securing the fan in the manner specified by its model. An electric drill with a hammer drill is the maximum that is required.
And the last one is very important point- the exhaust fan cannot be installed in apartments where ventilation system provides general ventilation ducts. This is due to the fact that the fan, creating excess pressure in the ventilation passage, forcing the air to move upward, in the case of communication between several passages, will drive it, including into neighboring apartments.