The bathroom must always be kept clean, and every housewife knows about this. However, in the case of poor-quality ventilation or in its complete absence, mold, fungus and other negative factors characteristic of high humidity appear very quickly. Many owners are trying in various ways to solve the issue of connecting the fan in the bathroom to a switch separate from the light.

What is the fan in the bathroom for?

A forced ventilation system may be required for a bathroom when conventional natural ventilation does not cope with its functions. This is evidenced by condensation on the walls, misted mirrors, unpleasant odors, and constant dampness. In a humid environment, active reproduction of harmful microorganisms begins, causing damage not only to human health, but also to all equipment, furniture and interior decoration of the premises.

If such problems occur, then it is imperative to check the health and functionality of natural ventilation. For this purpose, a match is lit and brought to the ventilation grill. When the light goes out very quickly or deviates in the direction of the grille, this means that the ventilation duct is in good condition. In this case, forced ventilation is not required. If weak fluttering of the flame is observed or the light does not react to anything at all, then the natural ventilation is faulty. In order to solve this problem, the air ducts are cleaned and the fan is installed.

Forced ventilation specifications

First of all, it is necessary to ensure the normal operation of the ventilation duct. In case of severe clogging, even the most powerful ventilation device will not help. Therefore, you first need to check the channel and clean it if necessary.

During operation, exhaust air circulates in the room. That is, the exhaust air leaves, and instead of a new one enters the bathroom. To improve circulation, some owners leave a gap under the door, up to 2 cm high. In such cases, it is recommended to immediately purchase a door with the appropriate size, so as not to cut and damage the door leaf in the future.

The main attention should be paid to the technical characteristics of the fan. The device must be selected taking into account its performance, noise level and other properties. The fan must be functional and safe, with an optimal price-performance ratio. The main selection criterion is the cubic capacity of the room, which is subject to forced ventilation.

Preparatory work

Before proceeding with the connection, it is necessary to complete a certain list of preparatory work. First of all, you need to choose and purchase the most suitable fan model. It is recommended to choose waterproof devices equipped with a hydrostat that controls the humidity in the room. Such fans turn on independently when the air humidity exceeds the allowable value.

The ventilation duct is expanded if necessary. Next, you need to lay the cable and wire it to the fan. The device itself is mounted in the channel opening and fixed with special fasteners. It should be noted that the fan must match the diameter of the ventilation duct opening and fit tightly into it. If its dimensions are larger than the hole in the channel, expansion is performed with a conventional perforator.

In the event that the fan is smaller than the hole, a corrugation or plastic pipe with the desired size is selected, which is inserted into the hole. All gaps and voids are sealed with polyurethane foam. Excess foam is trimmed and the space around the pipe is leveled with a putty.

The power of the unit is selected taking into account the area and volume of the room. If the area is too large, it may be necessary to install one or more fans. In such cases, additional holes are punched in the ventilation ducts, for the device of which it is recommended to involve specialists.

Before installing the fan in a prepared place, check its completeness. The delivery set must necessarily contain instructions, which describe in detail the installation procedure and give recommendations for further operation. The absence of such instructions most often indicates the low quality of the product and its illegal import into the country.

The device can be installed by yourself without any difficulty. First, the front cover of the fan is removed. In the places where the device is adjacent to the wall, silicone or polymer glue is applied, which is quite enough with a small weight of the plastic device.

Then the fan is inserted into the hole prepared for installation and pressed against the wall for a short period of time. After that, the front cover is fixed in place with self-tapping screws. To protect against insects, a mosquito net is installed in front of the lid.

After installing the fan, you need to connect the electrical wiring to it. Before starting work, the home network must be de-energized. It is not recommended to use twists to connect the contacts. A more reliable way is to connect using terminal blocks. Wiring must be copper conductors. If the replacement of the tiles in the bathroom is not planned, the wiring is carried out in. The final installation and fastening of the fan is carried out only after it is connected to the electrical network.

Fan connection diagram

To connect the ventilation device, several of the simplest and most affordable schemes are used. The connection can be made in parallel with the lighting, via a timer or sensor, as well as using a separate switch.

Many fan models have their own switch located in the housing. The device is switched on and off using a special cord. However, this is not always convenient, since in many cases the device is mounted under the very ceiling and in other hard-to-reach places, which makes using the cord very inconvenient.

Therefore, the owners often think about how to connect the fan in the bathroom to a switch located separately, in the most convenient place. In this case, the connection is made directly. In this case, a fan is connected instead of a light bulb. The only drawback of such a scheme is the possible forgetfulness of the owners, as a result, the device will work for a very long time and unnecessarily consume electricity.