increase in humidity in the bathroom is no longer a secret.To the room was clean and fresh air, you need to ensure good ventilation.Fighting high humidity people try a variety of ways.However, it was a time when you need to open the door to the room after taking a shower and clean water from the floor.It's time to go to drastic measures - buying a fan in the bathroom.
- importance bathroom ventilation
- exhaust fans Axial fans Centrifugal fans
- centrifugal fans Roof fans
- Choice hoods Bathroom
- The issue of security
- functionality extracts
- Price-quality fan
importance bathroom ventilation
ventilation in the bathroom is important for human health.Standard bathrooms have a small area.Therefore, when taking a bath or shower room quickly filled with steam.Dampness accumulates on the ceiling and walls, because this spoils finishing bath.Now think, need the fan in the bathroom?
Splashes of water condensation and evaporation can lead to undesirable formation of mold and mildew, which gives rise to an unpleasant odor, appearance of harmful small insects and their malicious secretions.Removal of odors and moist air is necessary for your comfort and reduce the risk of allergies and respiratory diseases.
As a rule, no bathroom in the room window.And the only way of entering the bathroom remain fresh air ventilation system.With the construction of home builders mandatory planning of natural ventilation channels.The efficiency of the ventilation system independent of the direction and location of the air flow.
often natural ventilation system with its task can not cope.To check whether the effective natural ventilation system in the bathroom, it is enough to hold a small simple test.Take a piece of paper and attach it to the grid.It will stick to the grid when the system is working properly - will be held airflow.
If ventilation is not working properly, a piece will not be held.However, it should be remembered that the system is working normally, and shows poor performance of its work, since its principle of operation is based on the difference in temperature in the bathroom and on the street.In the summer, when the weather is hot and ventilation is almost not working.
also vents become clogged over time, and the whole system loses its effectiveness.Remember, if your house is on the surface of the walls, sanitary ware and bathroom furniture in the accumulated condensation mist in the bathroom mirror and the toilet is always present an unpleasant smell, you should install an exhaust fan in the bathroom.
Types exhaust fans
When buying a fan for the bathroom is used to read that such devices structurally divided into the channel and the axial radiator and roof that determine the characteristics of their application.
Axial fans Axial
bathroom exhaust fans represent a wheel with cantilevered blades that are located in the barrel.The impeller usually is placed on the motor axis.The air trapped during rotation of the wheel blades and axially moved.Moving the mass of air is practically absent in the radial direction.
At the entrance to the hood for a bathroom installed collector to improve the aerodynamic characteristics of the functioning of the fan.Axial model show quite higher efficiency operation compared to other devices - the performance of more than 100 cubic meters per hour, but they are small pressure characteristics.You can install them directly on the wall.
This version of exhaust fans for bathrooms is quite widespread in mind ease of installation.Wall mounted fans in the holes of the ventilation shaft.In principle, this is a violation of installation, because it may be in breach of general ventilation air circulation.The disadvantages of the wall axial fans include higher levels of noise, which often reaches 30-50 dB.
Centrifugal fans Fans of this type represent a bladed wheel that is placed in a volute.When the wheel rotates, air enters the orifice between the blades, follows the periphery of the paddle wheel in the radial direction, it is carried out the compression and discards the centrifugal force in special spiral casing and then enters the discharge port.Work
hollow cylinder has a lateral surface of the blade, which are arranged parallel to the axis of rotation equidistant.The cooling systems and ventilation fans used the quietest bathroom radial single or double inlet, with blades that are bent forward or backward.
use of radial fans, the blades are directed backwards, saves 20% electricity.Their other important advantage is the ease of transferring over-flow of air.
bathroom exhaust fans with blades that are bent forward, able to provide similar pressure and supplies specifications, which aids with directional back blades with a smaller diameter of the impeller and a low frequency of rotation, helping to achieve a good result, while creating lessnoise and occupies less space.
Centrifugal fans Centrifugal fans
channel type appeared recently (70-year Tide), but gained much popularity due to their convenient use in considerable ease.Channel fans for bathrooms used when floor space more than 15 square meters.
devices themselves are quite strong, but the noise level is assessed as low.Quiet exhaust fans Bathroom channel type are intended to be placed in the flow of the ventilation system.They are rectangular or circular cross section.Usually channel fan mounted on the ceiling and hide behind gypsum panels.
is advisable to choose a semi-rigid or rigid ducting, because their design is considered more reliable than the flexible - it provides a longer service life.The centrifugal fan can be mounted in the middle of the air duct or air inlet in front.
Although the latter option is not very convenient as it requires setting diffuser that does not allow penetration into the ventilation system of the condensate.However, in the first situation, there are also disadvantages - due to aerodynamic drag ductwork you need to install a more powerful fan.
Roof hoods are installed on the roofs of residential buildings.Roof fan unit consists of a fan, the electric motor, anti-vibration pads, as well as automatic control devices that are enclosed in a single housing.These instruments are used multibladed axial or radial tools with blades single or double inlet.
Choice hoods Bathroom
choosing a fan for the bathroom, you need to remember some of the parameters and technical characteristics, such as air exchange and performance, noise and safety with respect to moisture saturation environment, as well as the functionality of the devices andquality-price ratio.
To calculate the required fan capacity for your bathroom, you will need the following information: the amount of space and the multiplicity of air exchange - the number of air changes an hour.The product of these two indicators will be the fan performance.
Calculate the power of the fan, you can use these calculations.Calculate the volume of the room by multiplying the length of the room by its width and height, and rounded up.To get the performance, the amount of space, multiply the number of which indicates how many times the air in one hour should be changed to fresh.
multiplicity of air exchange is always dependent on the type of room and is given in building codes.This number
bathroom on building codes is 6-8.Take 6, if your home bath are 1 - 3 people, if more than 3 - substitute or 8. The multiplicity of air exchange for the toilet to be 6-10.After
made calculations and the resulting performance can pick the best fan for the bathroom in the parameters of different manufacturers that produce exhaust fans.Practice shows that it is necessary to take the fan, which has a little performance slightly above the calculated parameters.Typically, the performance of the fans for bathrooms is 95 - 100 m3 / h.
Each fan for the bathroom in the rotation of the drive motor, whose work is always accompanied by the noise of two types - mechanical and aerodynamic.The first noise is able to penetrate into the room, spreading through air ducts at the same time, and the second - is the result of vibration of structural elements - the walls of the guard, and the exhaust fan directly to the duct.
noise that is more than 35 dB, the human psyche irritating.Therefore, noise control advocates urgent task in the selection and installation of exhaust fans for the bathroom.Thus, the figure of noise device should not exceed the value of 30 dB.If you think as a fan for the bathroom to buy, to include the device at night, remember that the noise level in this case should not exceed 25 dB.Noise parameters are specified in the passport data.
Noise can also be snizat installation of fan muffler and lining the inner surface of the duct sound-absorbing material.Silencers are two basic designs - tubular and plate.In any case the diameter of ducts must not have too small a size, due to the turbulence of air streams were not formed air "plug", but it should not be too large, which increases the material costs of a large fan for bathroom.
Another important requirement of the drawing bath is its protection against the ingress of moisture into the unit.Exhaust fan - this is an electrical appliance and in the bathroom is always wet.Contact with unprotected parts of the unit or switch the water (and they are available from any electrical device) can cause a short circuit and significant implications for the wiring - like fire.This should be considered whenever a question arises, how to select a fan for the bathroom.
To avoid this look in stores fans, that are designed specifically for the bathroom.They each have a note.This is a drawing, which made an additional protection against water penetration.For complete safety in the bathroom exhaust fan is used mainly for voltage of 24 V. If you happen short circuit in the wiring, a similar lower voltage to save the life of a swim.
If you still have not decided what is best for the bathroom fan should stop and at such an important moment, as the functionality.Hoods bathroom are of two types - automatic and standard.Standard exhaust fans are common axial systems with a check valve blocking flow back into the room exhaust air.
These fans are working is very simple: when the light starts to work at the same time extract air, when you turn off - the fan stops.This is convenient, but not always practical, especially when the moisture level is strongly increased, because such a fan for a short period of time will not be able to remove from the bathroom all wet air.
automatic exhaust fans for the bathroom, of course, are more sophisticated, but also more expensive.They are equipped with special timers to set the machine at a certain time of operation.Exhaust fans with timer off work after you leave about 25 minutes, and then switch off automatically.Fan with timer and humidity sensor is activated when the humidity increases above the set limit and switched off after a preset time interval you.
How to choose a fan in the bathroom, if the ventilation system is connected to the toilet kitchen ventilation system?The market is also presented extracts bathroom with a check valve.These devices will be a real boon if the ventilation system bathroom and kitchen are a single entity.This fan draws air from the room, not allowing him to enter the kitchen.
Then pay attention to the quality of the fan for the bathroom, do not always guarantee a high performance long-term operation of the device.It is better to see offers renowned manufacturers of bathroom fans.Positive characteristics and responses of consumers will signal that your choice has fallen on a decent machine.
confirm the quality of the exhaust fan is appropriate quality standards and certifications of special commissions, warranty documents and labeling, which indicates the degree of protection (repels from the lower value - IP 34).Remember that not always cumbersome hood is quality.Today
size fan for the bathroom most of the compact, but at the same devices are powerful enough.Also on the market is represented by the built in technology that eliminates the moist air is forced out of the bathroom into the ventilation shaft.
good quality fan for the bathroom is not always expensive.Even the most inexpensive and simple domestic machine will soundly deal with the problems as much as 3-5 years.And buy a more expensive device, you can always, especially if you are interested in high functionality fan.
bathroom is one of the most humid places in the apartment or private home.No doubt the answer to the question "How to choose a fan for the bathroom?" You know.We stipulate again that for wet rooms are compact, but powerful model in splash-proof hoods, the design of which prevents the water duct channel, reducing the risk of a short circuit to a minimum.In principle, we have listed all of the criteria for selecting the exhaust fans in the bathroom.It now remains to consider the installation of an independent exhaust in the bathroom.