DIY ventilation

Clean and fresh air in a house or apartment is the key to health and a comfortable stay for all residents. Such conditions can be ensured by forced ventilation, designed to clean the living space from unpleasant and harmful odors and dust particles. This is one of the simplest and most convenient devices in operation. DIY ventilation is equipped quite easily, which is a clear advantage of the device.

It is a simple pipe system with external entrances and exits to the street. The supply air duct is assembled according to a pre-compiled scheme. There are no serious installation difficulties here. In the future, such a device is quickly and conveniently serviced. Each owner of the house can independently install and use it in everyday life, regulating the flow of fresh air.

The need for fresh air

Some people think: if there are windows and the ability to open windows, why arrange ventilation equipment? You can purify the air in the apartment in this way. But in reality it turns out that natural ventilation does a poor job of this task, and air circulation does not occur. The house stinks unpleasant odors coming from the kitchen and bathroom, is created

humidity or dryness, and a person begins to feel discomfort.

Following the fashion and advertising of manufacturers plastic windows, many of us install them in an apartment. This creates a sealing of the space and an obstacle to free natural air exchange. A heavy atmosphere forms inside the building.

Particularly relevant is the issue of air purification in the winter. Ventilation through windows causes heat leakage and drafts. If you do not open the vents and avoid airing, the air in the rooms becomes dry, the amount of oxygen decreases in it. It makes people feel unwell.

Do-it-yourself ventilation allows you to avoid all these problems. It can be done in several ways:

• install the fans in the window or in a specially made hole in the wall;
• arrange a supply and exhaust duct;
• Mount the supply air (valve) system.

Now the most popular is the ventilation of the supply and exhaust type, driven by mechanical devices.

Supply or extract ventilation: which is better

According to the principle of operation, the supply and exhaust ventilation practically do not differ.

The supply air is the simplest and is associated with the natural purification of air through a system of pipes and holes located on different surfaces. In it, air circulation occurs naturally, following the laws of physics. The finished set of parts may be accompanied by a heating or cooling element.

Supply and exhaust involves the construction of a more complex system of pipes passing throughout the house. A convector is installed on the street, which is responsible for regulating the flow of air masses, cooling them in the summer heat and heating in the winter. In such a system, there are ultraviolet lamps that contribute to the disinfection of air entering the room. There is a fabric filter that holds particles of dust, burning and other inclusions that accumulate in the external environment.

Both systems are easily mounted from finished, manufactured parts or any improvised means. However, the supply and exhaust ventilation is more efficient. During its operation, processes occur that provide additional room comfort:

• heating or cooling air;
• its cleaning and disinfection;
• hydration and ionization.

Modern supply and exhaust systems have a recovery function. It is performed by a special device - a box - with radiators and ribbons inside. The air leaving the room “leaves” heat in it, which returns back to the apartment or house. The recuperator is installed at the outlet. In summer, it is removed or looped so that the air in the room does not overheat.

The installation of this device can significantly save thermal energy. It is inexpensive, and the benefits of its use are great.

The supply and exhaust systems have a natural and mechanical drive of fans located at the inlet and outlet of the ducts. Mechanical actuation of the device can significantly increase the speed of air flows and take additional measures to improve their condition. With good fan power in 2-3 hours, such a plant is able to clean and refresh a significant area.

The main stages of the ventilation unit

To make yourself do-it-yourself ventilation in a house or apartment, it is important to conduct competent preliminary work. It consists of several points.

Carrying out calculations. For a private cottage under construction, the ventilation system can be designed along with the general plan. For a finished building and an apartment in a high-rise building, an autonomous air duct is created taking into account the area of ​​all rooms and each room separately. All calculations are carried out according to the formula, which uses the values ​​necessary for optimal circulation of air masses. These include:

• total power and supply system performance;
• input fan power;
• air intake rate;
• maximum noise level from the operation of the device;
• diameter of supply holes, pipe dimensions and length;
• power and energy consumption of additional devices (air heater, recuperator, etc.).

When making the calculations, the coefficients established by SANPiN are taken into account.

Based on the calculations made, a detailed layout of all the components of the device is compiled.

Next, the selection of parts from the remnants of building materials and the purchase of the missing elements.

Now it has become possible to purchase ready-made ventilation devices of the supply and supply and exhaust type. Different manufacturers have different costs. But why spend the extra money if each man is able to mount such a system at home on his own. Do-it-yourself ventilation is longer and a little more complicated. It is much easier to equip a conventional flow duct.

DIY ventilation installation

The forced ventilation in the apartment of a multi-storey building can be connected to a common house natural duct system. To do this, first check her condition in a simple way. Notebook sheet is applied to the ventilation hole. If the paper adheres to it and is held, then there is draft, and the duct can be used.

In case the channels are clogged and clogged, you can try them clean. But in a big house, this can be problematic. Then set the ventilation with valves. They are bought in a store. How many such parts are needed depends on the size and total area of ​​the space. Valves come in different capacities.

The simplest models of these devices include an indoor unit, a protective grill, and a connecting pipe. They are usually mounted above the battery to minimize heat loss.

• In the selected place, the primary marking is carried out: the contour of the valve device is circled.
• If it was purchased assembled, then it is necessary to disassemble and release the case.
• Using a punch in the outer wall, a through hole is made, trying to withstand a slope of no more than 7 degrees.

• A tube coated with insulating material is inserted into it. It should be invisible from the outside, and protrude 1 cm from the inside.
• In the places of fastening the tube in the wall, holes for dowels-nails are drilled.
• They fix the body of the supply valve, which is additionally clamped by the insulating layer of the tube.

• When the base of the device is securely fixed, parts that were removed during disassembly are inserted into it.
• Outside mount the grill.
• After that, check the operation of the supply valve, opening and closing the valve.

During operation, it is necessary to disassemble and clean the valve twice a year from dirt and dust, which clog it through slots in the grill.

Installing fresh air in the apartment is a simple and reliable way to improve air and maintain a favorable microclimate.