Fan for exhaust in the bathroom: types and characteristics

Natural ventilation in the bathroom, as a rule, leaves much to be desired. In this case, for the room is characterized by high humidity, which can lead to mold. In order to avoid this, it is recommended to install the fan for exhaust in the bathroom. These products come in various types and are distinguished by a number of characteristics, but mounted quite simple and allow to maintain a comfortable indoor environment.

In some cases, you need a fan

If the air circulation in the bathroom is well done, then the fan is not needed. Exhaust fans bathroom needed in the following cases:

• house is in hot climates - high temperature natural ventilation air is reduced to a minimum, so setting of domestic exhaust fan is absolutely necessary;

• sealed windows and doors - no drafts in the house in this case is a drawback, since air does not enter the house through the plastic windows, therefore it accumulates in the bathroom wet air;
• Clogged ventilation - ventilation passages in many older homes hopelessly clogged with dirt and dust, and without the help of the fan for the bathroom of the room air through them will not be displayed. This also leads to the formation of mold in rooms and multiplication of pathogens;
• high humidity in the bathroom because of the design features home - if the apartment is located on the ground floor and basement regularly flooded, or if you live on the top floor and attic over you constantly flows, the apartment is always an increased level moisture. Without exhaust unit in this case is simply not enough.

If you relevant at least one of the factors described above, this means that you need to install in a bathroom unit for forced air circulation.

Should I buy an exhaust fan in the bathroom: the advantages and disadvantages

The main advantage of the device lies in the fact that its installation will allow you to significantly reduce the level of humidity in the bathroom or toilet. In addition, it is relatively inexpensive, easy to assemble, even without the presence of specialized skills and tools that do not require special care. Disadvantages can also be as follows:

• noise during operation - this problem can be easily solved by purchasing silent fan for the bathroom;
• a fairly large power consumption in continuous operation - this problem is also solved if the control operation of the device and keep it running all the time. Good solution will also become acquisition models with a timer, which will set the fan off time;
• a fan mounted covers the entire air duct and with the device turned off the natural flow of air not happening - in order to solve this problem, it is recommended to install a double ventilation grill.

Useful advice! Buy a fan for drawing in a bath or not - you decide. In any case, if you set the device will not satisfy your needs, it can be easily removed.

On what characteristics to look for when choosing a fan for the bathroom

When purchasing channel exhaust fan or a different model is necessary to pay attention to the following parameters of the device.

Performance - This parameter indicates how much air the fan can move over a given period of time. To calculate this parameter for your bathroom, you need to multiply the amount on the ventilation rate. The last parameter is a constant and depends on the number of people who use bathroom. Thus, if between 1 and 3, then the multiplicity is 6, a 3 - 8.

Noise level - this parameter should not exceed 35-40 dB. Setting silent fan for the bathroom with a check valve to help reduce the noise level to a minimum. In addition, to solve this problem is possible by means of finishing the ventilation passage with a high level of sound insulation materials.

device Security - Domestic axial fans and other models are subject to a short circuit at a higher moisture content in the air. Therefore it is better to give preference to devices that are protected against splashes and are not afraid of water. Recommended protection class for bathrooms - IP44.

The size - before you make a purchase the device, make measurements of the air vent. It should be borne in mind that the device should not only free to enter the ventilation duct, but also its external part should completely cover a vent.

Appearance - this option is selected solely depending on your sense of taste and design bathroom. In today's market there are many models, so choose the most suitable for your interior will not be difficult.

Functionality - the availability of a variety of additional functions. It does not get too carried away and select the most functional device. Choose only those functions that are really useful, as they affect the price of an exhaust fan.

Additional features of the device

Among other useful features of your device for forced air extraction can be distinguished:

• power control - one of the most useful features, as it allows to significantly reduce power consumption. The adjustment can be performed in automatic or manual mode;

• Humidity Sensor - another useful feature, the presence of which indicates that the device is turned on only when the humidity level reaches a certain point. Fans for the bathroom with a humidity sensor can also help save energy;
• motion sensor - the fan is switched on when someone enters the bathroom and comes out of it. The device then continues for a predetermined time;
• Timer - exhaust fans with a timer are good that you can manually set the time of operation of the device;
• function "constant airing" - the device always operates at minimum speed and increases power if the humidity in the room rises. This mode is good if you dry in the bathroom things after washing;
• check valve - if the ventilation hole of your bathroom goes directly to the street, the exhaust fan for the bathroom and toilet with a check valve will not penetrate into the room an unpleasant smell from the street.

Useful advice! It is not recommended to do the fan is fully automatic. It is better to set up the device off automatically, and run it to make a controlled.

The choice of an exhaust fan for the bathroom

Toilet fan to choose much easier than for the bathroom. Typically, in this room you need to get rid of unpleasant odors only, so you can install the most simple model, which will be switched on and off simultaneously with the light in the toilet. For toilet is very relevant model with a check valve, and the recommended power is 50 m / h under normal operating ventilation.

Fan for exhaust in the bathroom: types and characteristics

Fans for the bathroom can be distinguished by a number of characteristics. The first of them - this is the type of device installation:

1. Surface mounted or wall - mounted directly on the wall. It is understood that such a model will significantly stand out from the wall, so it is better to install in a secluded place, hidden from the eyes.
2. Built - mounted directly to the wall. Such a model can be almost invisible, with far better protected from the harmful effects of moisture and dust than overhead fans mounting option.
3. Ceiling - is also built into the vent, but not on the wall and on the ceiling. Good that it can blend in with the interior design of any room, but pretty quickly clogged with dust, so need regular cleaning.

Also, fans are distinguished by a special design.

axial - reversible axial blower feature or the direct type is that it is designed as a vane of the impeller is located in the cylindrically shaped housing. Thus the fan blades are at a slight angle to the axis of the channel, and the air drawn instrument, moves along the axis.

In the catalog of axial fans can find a lot of different models, but they are thin, so do not cope with the high humidity in the larger rooms. Another disadvantage of this embodiment is the increased noise during operation, which may reach 50 dB. Installed such a model can be directly into the vent. Price axial exhaust fan is slightly lower than that of other models.

radial - in that the fan is working part has a barrel shape, to which the same distance from each other are mounted blades. In operation, the blade pattern is moved air against the inner surface of the body casing. The blades can be folded forward or backward, and in the latter case, it allows the fan to draw air with not one, but two sides. This makes it possible to save energy and more effectively get rid of the moisture.

Centrifugal fans are compact size and low noise level during operation.

Duct or centrifugal - some of the new, however, and the most popular models. Buy Duct fans can now be in any specialty store, and use them effectively can be an area of ​​over 15 square meters. The advantages of channel centrifugal fan include high power operation, low noise, compact dimensions and an attractive design.

They are available in various sizes, and the model choice depends on your duct settings. For example, channel 125 mm fans installed in ventilation with a small diameter, but duct fans 160 mm designed for installation in large air ducts. rather high price channel fan can be attributed to a shortage. Mount this model is somewhat more complicated than others, because it requires to completely isolate the device from the vent hole walls. It is recommended to use a layer of corrugated rubber.

Useful advice! Regardless of diameter channel fan (150 mm or more) is required when installing the wires placed in a special case.

Installing the fan for exhaust in the bathroom

If you decide to buy an axial exhaust fan or any other model, then you can install it on their own without much difficulty. But before proceeding with the installation, you must perform several actions.

Firstly, you need to check how well the your ventilation. To this end, the ventilation grating is necessary to bring a lighted match or a sheet of paper. If the flame is tilted to the side of the duct, this means that it is working properly, and if the flame remains stationary, the ventilation shaft must be cleaned before installing the device.

Second, the door to the bathroom or the toilet must be a gap width of about 2 cm. This is to ensure that during the installation of domestic axial exhaust fan or any other model in the room did the fresh air instead of what the device pulls from the premises. Otherwise, ventilation will not function.

Sometimes it happens that the vent is not suitable in size to the selected fan model. In this case, it can be made smaller or, on the contrary, expanded with a hammer and chisel. In the first case, a conventional foam.

Related article:

Extractor fan in the bathroom: eliminate excess humidity

Types and advantages of the devices. The choice of equipment. Fan power calculation. Recommendations for self-installation.

Once you've made sure that the extractor will function properly, you can install the device. If you are mounting the axial fan wall or another model, this is done in the following order:

1. Unscrew and remove the decorative front panel of the device. This can be done with a suitable screwdriver.
2. Along the perimeter of the fan cover is applied to the adhesive. The best thing is to use a special construction compositions, which will not only securely hold the device, but will not allow penetration into the ventilation shaft of dust and moisture.
3. If the design of the wall exhaust axial fan there are special holes, then fix the device is possible by means of dowels.
4. The device is connected to the wiring. There are several options, each of which has its own characteristics.
5. To through the ventilation shaft in your house did not penetrate the insects, you should install the fan mosquito net. It is mounted under the front cover.
6. The front cover is installed in place, bolted or attached by other means, which is provided by design.

For most models includes installation instructions and operation, through which you can easily perform the installation yourself 15-20 minutes. In addition, the Internet, there are many instructional videos dealing with the installation of exhaust fans centrifugal or axial models.

Variants of the fan connected to the network

To carry out the connection exhaust fan with a timer or without power, it is only necessary to use a three-wire cable. The connection can be done in the following ways:

1. For one-button switch - a good option for a toilet. In this case, the device will be switched on and off simultaneously with the lighting. Zero and the land in this case is connected directly, and the phase - after the switch. In the bathroom, this option is not very useful, since not enough powerful fan will not have time to deal with the humidity in the room.
2. By dvuhklavishnomu switch - a convenient option for the bathroom, as it allows you to enable or disable a device for forced air extraction regardless of the lighting. This connection phase is supplied to the switch from the junction box and is switched to the lighting device and the fan through two contacts. Neutral and earth are supplied to the fan and lamp from the box.
3. Directly to the lighting device - in this case all the wires are fixed in one box, one end of the wire is supplied to the lighting device, and the second - to the fan.

In some models, the axial overhead fans and built-in channel, there is a built-in switch. It's not very convenient, since the device for drawing air is usually installed on a ceiling or other hard to reach places. Before you opt for such a model, consider whether you will be comfortable every time reach for the unit to turn it on and off.

Useful advice! Before starting the installation work, always make sure that the electricity network is turned off.

Tips for installation of the axial channel of exhaust fans and other models

When mounting for forced air circulation device nuances, consider the following:

1. The fan should be installed only in a normally functioning exhaust shaft, otherwise the device will not work properly.
2. Install the appliance must be opposite the door to the room and at the maximum possible distance from the floor.
3. If we are talking about installing an exhaust fan wall-mounted or built-in model in a private home, you should not make the air outlet in the attic, condensation can occur otherwise. The latter will have a negative impact on a wooden construction, which will inevitably lead to the appearance of rot and mold.
4. The best option for a bathroom fan - a reversible supply and exhaust axial fans. Such models most effectively cope with high humidity even in larger buildings.
5. Attach the fan to the wall or vent best with screws.
6. If the model you have selected is too noisy, but you can reduce noise by using special silicone sealant for fixing the fan to vent.

Care for a fan for the bathroom

Fans Channel 125 mm and any other models require regular maintenance to extend the service life. Firstly, the device has to be regularly cleaned to remove dust accumulating under the cover. To do this, the decorative lid is removed, and the fan is cleaned with a vacuum cleaner. Second, at least once a year it is necessary to completely disassemble the unit and rinse it with plastic parts. Metal parts should be lubricated with engine oil - it will make the course of the working part easier and reduce the noise level during operation. Particular attention should be paid to the bearings.

If your fan rattles at work, weak draws in air and does not provide the proper level of protection of the premises from the moisture, it is necessary to purchase a new device model. Prices for this type of instrument is not particularly high, so a replacement can be accomplished without a large financial costs.

Exhaust fan for the bathroom - a compact and relatively inexpensive device which will help you to get rid by excess moisture in the bathroom, provide air circulation and help to solve the moisture problem. Its installation and connection to the power supply will not take much time, and it can be done without any special skills or tools. Also, such a device will be effective for a toilet, a balcony, storage, and many other areas in which there is a problem of bad natural air circulation.