Silent fan in the bathroom: types, models, installation

First of all, you must determine whether you need a forced ventilation system bathroom or toilet. To this end, a lighted match is brought to vent. If the flame is significantly deviated toward or even extinguished, the hood operates successfully and is sufficient to install a check valve. If the flame is still, it is extremely necessary silent fan in the bathroom for the normalization of air. excess humidity can cause the formation of odor, mold and mildew, which is especially dangerous for children and people with chronic respiratory diseases.

Features silent fan selection for the exhaust in the bathroom

When choosing the fan for drawing the bathroom is necessary to operate on the following factors:

• Dimensions. It depends on the size and shape of the air vent;
• Capacity (m³ / h). This rate is determined by the regulations (SNIP 41-01-2003), depending on the volume of the bathroom of the room and the number of people living in the apartment (total multiplicity of air renewal in the room). Experienced masters recommend to the resulting value is added to 15%, so that the engine was not working at full capacity and less wear. In addition, be aware that the multiplicity of air renewal in a small room should be higher;
• Noise. Models of fans that run totally silent does not exist. In accordance with the sanitary regulations boundary noise level of the household appliance should not exceed 35 dB;
• Safety class housing. One of the important parameters for the devices that operate at high humidity. The housing must be protected against splashes on the international classification of at least IP45;
• The presence of the check valve. It is better to buy a device, the kit which already includes a check valve. It more effectively prevents air from entering ventilation system home to the bathroom, you can install separately;
• Additional functions. We are talking about a device that allows the hood to operate autonomously: On timer, Motion sensor, humidity detector. The use of such devices may significantly increase the cost of the exhaust fan for the bathroom, but it will greatly facilitate the operation, increase comfort and save energy.

The relationship of noise and performance

Fan noise is not directly dependent on its capacity. Significantly more influenced by the quality of the construction assembly, the materials used, the presence / absence of a specific noise-absorbing coating. Sounds arise from airflow of the ventilation duct, the rotation of the blades, vibration of the device itself. In qualitative models by branded manufacturers in the design elements are special extinguishing vibration and noise. However, low noise negative effect on the fan performance.

In operation, the noise level can be increased. This is due to dust particles, grease, dirt that are deposited on ventilation lattices and blades. Normal operation can help systematic cleaning and good fixing exhaust fan housing to the bathroom.

Fans for the bathroom with a check valve

Check valve to the exhaust fan is necessary, if the ventilation system there are a few points air intake and may change in the air flow direction in the case of drawing the inclusion in one of the them. For example, integrated into a single system hoods in the kitchen, Bathroom and toilet. For apartment houses check valve is mandatory regardless of the efficiency of the ventilation shaft.

Have been developed many effective check valves devices based on different principles response:

• Single-gravity - is a plastic or metal shutter, fixed to the middle of the horizontal axis or in the upper third duct. Under the influence of the air flow directed from the room shutter is rotated, and when a reverse thrust is closed under the action of gravity. Reserve simple design allows the use of this type of check valve in a natural ventilation system. However, the installation should pay special attention to the accuracy and placement. The valve should be positioned vertically, any misalignment can greatly reduce its effectiveness.

• bicuspid spring (butterfly type). Such constructions are installed exclusively with forced ventilation systems. The axis on which the two curtains attached, is exactly in the middle of the duct. It is driven by a relatively strong air flow, and returns to its original position under the influence of the spring mechanism. In some models, it provides the opportunity to return to the blind forces of adjustment.

• jalousie. It represents one of the varieties of gravity valveOn several horizontal axes placed small blind, resemble jalousie. This design is more compact and sensitive to air flows. Usually used to protect the outside of the duct facades of buildings.

• flexible membrane. The shutter is made of a lightweight flexible plastic material that bends in the horizontal or vertical axis by the air flow directed from the room. When choosing a design to remember if the reverse thrust has great power pressure duct should be It has additional ribs in the form of a plastic lattice, which will be based in a closed membrane condition.

Important! Diaphragm and spring options check valves are not recommended for external parts of ventilation grilles. At low temperatures their efficiency is considerably reduced.

Related article:

The check valve in the ventilation. In this publication we will consider why there is a check valve design options, operating principles, types devices made with their own hands, the algorithm of actions for installation, tips and recommendations specialists.

Types fan design

The domestic ventilation systems for apartments or private houses noiseless fan of the following types are most commonly used:

• axial;
• radial;
• Centrifugal.

Technical execution can be divided into ducted and roof.

Axial exhaust fans

So named because of the air flow direction, which coincides with the axis motor (perpendicular to the plane of the impeller). These models are easy to manufacture and have affordable price. They are quite efficient and economical, durable in the operation. One major advantage - it is an opportunity to operate non-stop for long periods. Compact design allows their use in conditions of strict limitations workspace technological niches.

Axial fans for exhaust have an efficiency of above average and great performance, but their pressure force indicators are quite low. A variety of models and dimensions makes it easy to pick up the instrument for a specific niche ventilation and simple design allows for the installation of their own hands. An additional disadvantage is the rather loud noise produced by the device during operation - 30 ÷ 55 dB.

Picture	Model	Characteristics
Sound pressure level dB	Motor power W	Manufacturer-ness, m3/час
	Soler & Palau TDM-200	40	25	200
	Blauberg Sileo 125	32	17	197
	Electrolux EAFM - 150	32	25	320

radial

These devices have a fairly large size. It consists of an outer spiral housing, the motor and bladed wheel. The principle of operation is as follows. Air enters the housing through a side opening, the blades being compressed special shape, is moved in the radial direction, it is distilled in an outlet disposed at right angles to the exhaust. Many radial patterns are bilateral, ie they have the switching function as the absorption, and the injection. Plane bladed wheel may also be curved both inside and toward the housing. They are not installed in the practical BathroomsAs they have a considerable size.

centrifugal

These devices resemble radial exhaust fans, but they have suction air is not via the side holes, and with the end device. The impeller has a truncated cone shape. With it, the air stream is drawn through the diffuser and is accelerated and the direction toward the ejection. The main difference of these fans is virtually silent operation, but they are quite bulky and have low air pressure.

Important! Models of a centrifugal fan with blades spiral form disposed substantially parallel to the rotational axis and directed backward (toward the housing) more economical. If comparable performance and motor power they consume power at 20% less. Models with vanes disposed forward have a compact body (due to the smaller diameter of the impeller) and produce less noise (due to the lower speed).

Picture	Model	Characteristics
Sound pressure level dB	Motor power W	Manufacturer-ness, m3/час
	Maico ER 60	26	21	62
	Vents DF 100	38	29	122
	Blauberg - Valeo 60	45	30	320

Duct silent fan

The main difference between the channel of the fan for the bathroom is a feature of the installation. The housing apparatus is located directly in the air duct cavity. The advantage of such a location is a significant reduction in the noise level. The lack of technological design enhances its aesthetic appeal indoors. Entrance into the duct may be covered with a decorative shaped lattice made in style bathroom.

Ducted fan has high productivity, it is expedient to use for building area of ​​more than 15 ÷ 20 m². The device itself does not need to be installed directly over the air inlet, it can be in the middle of the ventilation duct. The only drawback is a more complex installation procedure than with wall models.

Picture	Model	Characteristics
Sound pressure level dB	Motor power W	Manufacturer-ness, m3/час
	Soler & Palau-Silentub-100	37,5	12	100
	SYSTEMAIR K 200 L	47	45	550

Fans for roof type

Roof fan is a device providing exhaust to the bathroom, toilet, kitchen and other rooms house. Mounted on the roof, directly on the main vent tube exit. There are two basic types of roof fans:

• from vertical ejection air mass - minimizes contamination roofing;
• from fan-shaped (radial) method of removing exhaust air.

This equipment is constantly exposed to environmental influences, so to the hull structure and the materials used are increased requirements. Additional problems can create complex installation conditions on a pitched roof. Given that all the operating mechanisms are located in virtually uninhabited areas of the building, this type of fan is the quietest for tenants.

Picture	Model	Characteristics
Sound pressure level dB	Motor power W	Manufacturer-ness, m3/час
	SALDA VSA 3.0	61	50	360
	SOLER & PALAU TH	49,5	50	470
	SYSTEMAIR DHS	41	60	510

Fans with humidity sensor and timer for the bathroom

Typically, the fan in the bathroom is connected to the power supply system in parallel with the switch Sveta. Accordingly, it functions only when the room is used. But most of all you must have already airing after bathroom benefited. The most effective way to optimize their costs and continuously maintain the microclimate in the bathroom at the desired level is to use a stand-alone control devices ventilation system. Most often there are two types of devices used in fans:

• delay timer drawing function allows for the bathroom and the toilet a certain period of time after it is switched off the light in the room. Typically, the functionality of such devices include the ability to self-configure the time interval. The main disadvantage of timers is that they aerate the bathroom the same period of time after the washing of hands, and after taking a bath.

• humidity detector enabling more intelligent control bathroom ventilation. Apparatus independently switches the fan in dependence on the level of humidity in the room.

Important! Some handyman equipped with conventional extraction in the bathroom or electronic timers humidity detectors, connecting them to the fan through a relay. To do so not worth it, because the high humidity in the room may damage the electrical circuit, causing a short circuit. It is much safer to buy an exhaust fan, in which the control system is already integrated into these devices.

Mounting the fan for drawing

The easiest way to carry out the installation of an external axial exhaust fan for the bathroom. Installation can be divided into 2 parts:

1. mechanical - setting body within the exhaust duct and the installation of the front panel on the wall.
2. Electrical - Connect the device to the mains.

Each fan model has its specific design features, so before starting the installation, you must read the instructions carefully. It is also recommended to make several requests to the Internet for instructions on installing the video of this particular model.

Video workshop silent installation of ventilation in the bathroom:

Setting silent fan model VENTS Cilento-C in the bathroom:

Important! Bathroom is not just a room with high humidity, but with significant differences in temperature. This should be considered as in the insulation of the wires and for fixing of mechanical parts.

Installing the fan in the bathroom with their hands

The following actions are performed to install a silent fan in the bathroom:

1. Cleared faceplate is applied to the installation place (should completely cover the exhaust port) and marked along the contour, and the attaching points.
2. If screws are used for fastening, in the tile holes are drilled.
3. Places on the wall of the front panel contour is processed with silicone sealant (best to use clear, it is not so noticeable on colored glazed tiles). Tile previously cleaned and degreases to provide greater adhesion level.
4. The fan casing is set in a technological niche of the ventilation system. It is firmly pressed against the clock to silicone sealant stuck. At this time, you can tighten the fasteners, if any design.
5. Fits mosquito net and the non-return valve, fixed to the front cover screws or Clip-latch.

Secrets of the installation! If the internal volume airbox allows, between the fan casing and the inner wall is desirable to place the rubber seal. This will significantly reduce vibration and make operation of the device quieter.

Electrical connection

There are several options to connect the axial fan exhaust to the mains:

• switch is located directly on the housing. Typically, this lace, less normal button;
• device connected through the connectors to the electric switch lighting bathroom;
• Fan power supply line is brought to a separate switch. The most commonly used two-button model. Such a connection method is more rational and convenient to use. However, tenants often forget to turn off silent unit;
• device off automatically activating motion sensors or humidity, is carried off with a delay timer.

Where to buy silent fan: the price, manufacturers, catalogs

Silent fan for the bathroom or the bathroom exhaust fan sold in any specialty store plumbing, household electrical appliances, or in the market. The main problem is not the difficulty of choosing a particular model of the desired technical parameters, and the acquisition of high-quality device.

Almost all the leading electrical companies produce silent fan for bathrooms. But there are several companies that specialize in the design and manufacture of this type of electrical appliances:

• Soler & Palau (Spain). Products of this company is highly productive and operating duration. Virtually all its products the company provides a guarantee operating time of not less than 30,000 hours to failure. An additional advantage is a good defense the body from external influences. Fan equipped with a check valve, and head cover is made in several versions with the original design.
• Elicent ELEGANCE (Italy). The products of a refined appearance, combined with high efficiency. Usually standard with autonomous control device includes: timer and hydrostatic relay. The motor has a long life and ability to function as a short-term mode or a long period of time.
• Maico (Germany). The cost of the radial centrifugal and axial fans for exhaust produced by this company is quite high. However, this is completely compensated by the highest quality, reliability and long operating period. Engines have reliable bearing protection against thermal overloads and condensation, protection class not less IP56, and it is made of high impact polymers.

conclusion

We hope that our brief review will help you in the selection and installation of this device. If you have any questions or want to share your experience, feel free to leave comments.

And finally, a short video on choosing a quality fan: