Ventilation to the toilet with a fan: tips and features

Engineering equipment is mainly associated with heating, gas and water supply systems. Recently, more and more attention in modern houses and apartments has been given to climate technology, including humidifiers, air conditioners and disinfecting devices. Ventilation equipment has always occupied a special niche, since it requires more technical and financial investments. For example, the organization of a ventilation duct with installation works is much more costly than installing a split system. Understand this and the manufacturers, optimizing their products. As a result, a modern extractor hood with a fan is a fairly compact device, supplied with a wide functionality and ergonomic controls.

The principle of exhaust ventilation

The basic solution for ventilation in apartment buildings is usually a natural airing through the technical channels provided for this. The essence of this method is to exchange the exhaust air for fresh from the street. However, this method does not always work because of the temperature difference at different times of the year. Therefore, a more effective solution in the form of forced traction is used. It is realized by a fan-extractor. For a bathroom and a toilet, small wall channels are usually provided, in which a rectangular or cylindrical branch pipe is provided to ensure air passage. The fresh mass is pumped by a fan, which can also be provided with filtering devices for preliminary air purification.

Features of exhaust fans for the toilet

First, such devices are compact in size. For aesthetic reasons, as well as technical and design standards, the channel and its communications in the bathroom should be compact. Most often the device is unobtrusively located in the upper part of one of the walls that exit either into the central ventilation shaft, or directly to the street. Secondly, the outer coverings of the housing, in which the hood is placed in a toilet with a fan, and its features in terms of design are oriented to protection against external influences. If it is a toilet combined with a shower and a bath, then protection can be expressed in an enhanced water repellent function in the first place. Manufacturers produce special modifications in which the electrical insulating of the fan and communications, against which its energy supply is provided, is protected from splashes by special insulators.

Axial fan models

A very common solution, which is popular due to the optimized design and the generally familiar device. The device is a cylindrical body in which a small wheel with blades is enclosed. The impeller is integrated directly into the electric motor system, fitting onto its functional axis. Accordingly, during the rotation of the blades, there is also a displacement of the exhaust air with the injection of fresh streams. Before entering the ventilation system, a collector is installed, which improves the electrodynamic properties of the device. In this version, a classic fan with a non-return valve can be realized. Extraction in the toilet of this type makes it easy to block access to cold air in the winter. Today, there are practically no models in which such valves are not designed in a structural way. Another thing is that the management of this component of the system can be carried out in different ways.

Radial constructions

Fans of the radial type are located in a spiral housing. During the operation of the scapular wheel, the air masses entering the intercostal channels run radially relative to the wheel periphery. Further they are compressed and, under the influence of the centrifugal force, retreat into the casing, and then they are sent to the injection terminal. The functional component, that is, the same fan wheel, is a hollow cylinder in which the blades are spaced apart with equal spacing. Despite the complexity of the design, such fans with a flap for drawing in the toilet can be useful not only from the point of view of sanitary tasks, but also for financial reasons. If we use models with backward curved blades, then, according to calculations of specialists, energy savings can be about 20%. In addition, radial models easily tolerate loads with air flow overspending relative to the recommended values.

Installing the system

To get started, the optimal placement is selected. It must be located high and, if possible, remotely from other points of intake or inflow. Further, an aperture with a diameter corresponding to the fan body is formed. This is done with a perforator or other power tool, which in principle is able to form a niche with a depth of about 30 cm and a thickness of 15-20 cm. Then it is necessary to conduct communication lines and insert the structure into the created hole. Usually the hood to the toilet with a fan provides for a battery power supply - again to improve safety in terms of moisture protection, but with proper insulation it is possible to conduct a power line of 220 V. The fixing of the installed branch pipe is realized by mounting foam or special glue compounds. Decorative design of the site is carried out by means of complete plugs and panels with grilles.

Fan control system

Ergonomics, efficiency and energy consumption in a significant degree will depend on the way the ventilation unit is managed . Initially, you can divide all models into two types - manual and automatic, that is, electronic, control. The first option is used less and less, as it requires the user to independently close and open the same valves. Electric models or a hood to the toilet with a fan on batteries eliminate the need for personal control of the device. Moreover, the latest modifications with intelligent control themselves react to changes in the air and temperature environment, taking the appropriate decisions about setting the operating mode of the fan. The concept of combining a fan with the function of lighting in a toilet is also popular. The device will fire automatically every time the user turns on the light. That is, and cleaning of the local air will be logically done at the time of its pollution.

How to test the equipment performance?

The check should be carried out at the first signs of unsatisfactory operation of the equipment, as well as after installation or repair. It will help you find out how efficiently and efficiently the fan works. The simplest method involves the use of a paper sheet, which must be applied to the grate leading to the fan. A properly working device will press it to the panel and hold it, not letting it fall. If the hood to the toilet with the fan does not hold the attached sheet near its grill and it falls, then there are malfunctions, either structural or electrical. Solving both possible problems will help only complete uninstallation of the device with the subsequent search for a malfunction.

Manufacturers and prices

The manufacturers and direct manufacturers of such devices are engaged in both producers of climate systems and companies that produce household appliances. In the first category, such brands as S & P, FRESH, Xpelair, JSC and ERA are trustworthy. The second category of attention deserves high-quality and functional technology MIELE and AEG. In the initial segment, an extract to a toilet with a fan is estimated at an average of 500-600 rubles. These are the simplest devices with the absence of modern options and in their capabilities rather reminiscent of the usual channels of natural circulation. For 1000-1500 it is quite possible to get a multifunctional system assembled from environmentally friendly materials with a radial fan.

How to choose the best model?

In the selection of the toilet fan, several groups of parameters are taken into account. First of all, this is a structural design - the shape of the shell, the diameter and type of the fan itself. Further, operating indicators are defined, among which the capacity and characteristics of the power supply system. Solving the question of which fan for drawing in the toilet is better, you can not do without ergonomic nuances. To date, the optimal solution in terms of convenience is a fan that will be integrated with the overall climate infrastructure. The most advanced devices assume automatic control from the central controller. And here it is worthwhile to elaborate on the functions that can be included in such an infrastructure.

What to consider in the functional?

The concept of "smart" home suggests that even a modest fan in the toilet or bathroom should be provided with a wide range of control sensors. In particular, the basic set includes presence sensors and humidity controllers. Based on the readings of the sensing elements, the mode of operation of the device is selected. For example, a fan with a damper on the hood to the toilet will, depending on the state of the air environment, regulate both the speed of rotation of the blades, and the flow capacity of the valve. Less technologically and at the same time more affordable devices do without complicated automation and work on timer settings. This is the most popular solution among ordinary city apartment owners.

Conclusion

The transition from natural ventilation to exhaust systems has become widespread against the background of structural simplification of fans. If before it was loud and not always attractive external units, today most models differ both in aesthetic virtues and comfort in operation. On the market there are widely represented fans for extracting noiseless for the toilet, the work of which is practically not felt. To feel it is possible unless the process of renewing the air with the influx of fresh masses. At the same time, there is no risk in winter to fill the room with excessively cold air, because in the electronic filling with sensors, the temperature control will be activated.