For some reason, during the construction of a private house most often, instead of a full-fledged ventilation system, air conditioners are installed. Of course, to cool the air with a hot summer day – this is important, but the purity of air in this case is not guaranteed. The air conditioner only drives the same air masses, while usually does not take fresh air from the street. Therefore, freshness here “does not smell”, only with coolness.
For good health, the preservation of furniture, and just for a complete sense of comfort, a system of supply and exhaust ventilation is necessary. Because natural ventilation is sometimes not enough. Exposite channels built into the walls in the bathrooms, bathroom or kitchen do not always cope with this task.
The natural ventsistem works due to the difference in pressure and temperature inside and outside the building. But in order for it to work efficiently, it is necessary that the supply air enters the room, which leaking through the leaks of windows and doors, carried the contaminated air masses with him and carried them through the exhaust grilles to the ventilation and then on the street.
Modern window double-glazed windows do not make it possible to flow fresh air into the room due to their tightness. Therefore, in the rooms there remains stagnant moist air, substances distinguished by building materials, which leads to various pulmonary diseases, including asthma. Imrieving with open windows does not always lead to the desired result, since you will have to open windows in all rooms, or at least in two opposite ones, which leads to draft and discomfort.
The only way out of this position to equip a ventilation system in the house. At best, it must be designed along with the design of the house. Otherwise, its device in ready -made rooms will lead to a loss of useful area and design violation.
The hood can be designed natural by arranging exhaust channels in the walls of the kitchen and bathrooms, or mechanical, due to the same ventilations. For this purpose, roof fans or small ventilation installations built directly into the exhaust canal are great. The choice of equipment depends on the necessary air exchange for each specific room. For the supply system, you can use centrifugal or axial fans, the main thing is that their characteristics correspond to the calculated volume of air and the pressure necessary to move air masses. In addition, the correct calculation of the air ducts is needed, more precisely, the diameter of their cross section. Not only how the whole system will work correctly and efficiently, but also how quietly the air flow will move along it.
The selection of all equipment is a rather serious matter. And if you are not a specialist in this field, it is better to trust professionals who can fill your home with fresh air and comfort with your minimum cost.
