The ventilation system of a private house in the people

We believe that users FORUMHOUSE agree with the statement that a sound approach to the ventilation system private houses is this - you first need to calculate the exchange of air, and then, based on these data, pick up the necessary duct section. And only after that you can make a cottage ventilation scheme, and to define the installation location of the ventilating equipment.

According to member of our portal (forum name petrovk, city Moscow) ventilation in the house can be divided into three types:

• natural;
• Ventilation, or as it is called, mechanical;
• Air handling unit with heat recovery.

petrovk (Member FORUMHOUSE):

- The design of the ventilation system should be guided by the principle that–the air in the house must be completely updated 1 hour. For my frame house of 200 m2, I settled on a flow-handling units with heat recovery. Installation is selected based on the count of air cubes in the house, I 600, I took the plant to 700 cubes.

Keep in mind that a comfortable environment in the house is created not only by the fresh air supply, but due to the speed of air flow. Ventilation due to the presence there of the blower creates a larger flow of air than natural ventilation.

In operation, mechanical ventilation, air velocity in the ventilation system is on average 3-5 m3 / hr, and at about the natural 1m3 / h. Try to figure out whether to create natural ventilation creates a more comfortable environment in the house. This question is not as simple as it seems. For in order to pass through the mechanical ventilation system and the natural one and the same volume of air requires a different section of the ventilation duct. This means that the installation of natural ventilation will cause an increase in the section of the channel, which is not always possible from a technical and aesthetic point of view.

In any type of ventilation - irrespective of it natural or artificial, it is necessary to ensure unobstructed movement of air around the house.

One of the options - to set the door of the room with overflow grating or leave a small gap between the door and the floor. For proper organization of air flow necessary - to the air intake was carried out in the clean room, the living room or bedroom, and the output is in the kitchen or in the bathroom.

In the kitchen, above the stove, cooker hood must be kept separate channel. If the hood is compulsory, the kitchen and the bathroom can be combined with one vent. The diameter of the inlet to the outlet should not be reduced. Due to the nature of the kitchen hood duct make it necessarily round, galvanized and vertical, without knees. You can not use corrugated aluminum or plastic duct.

consultant FORUMHOUSE Elena Gorbunova (forum name Matilda):

- Natural ventilation is operated at a pressure drop on the inlet and outlet. Login this exhaust valve, it is placed in the ceiling of the room or in the wall near the ceiling. Yield is the height of the tube. Difference starts from 10 meters. Another differential pressure depends on the temperature difference. In winter it is better, but worse in the summer.

Often the question arises whether it is possible to combine the ventilation channels kitchen, bathroom and boiler room in a single system, then put duct fan, and one truboyvyvesti everything through the roof.

User FORUMHOUSE Vladimir (forum name Careless Angel):

- In no case can not be combined with the hood drain, then the whole house will smell like a toilet, regardless of whether before or after the fan is installed duct.

See video on pdrobnoethe conclusion of the riser through the roof.

Also of great importance, and the material from which made ventilation ducts for private homes. One of the best options - the use of the spirally-wound galvanized ductwork. But in self assembly developers massively used vents made of a sewer pipe with a diameter of 110 mm.

matilda:

–Sewer pipes can not be used. Generally can not be applied to plastic ducts, unless special anti-static tube. In this case, the dust will adhere to the walls. Besides pipes have a small diameter. A thrust depends on the diameter of the duct and the height differential. Drop in the cottages is quite small - it's not high-rise building. So with a small diameter, the thrust will be almost, especially in the summer. And if you put the fan, the pipes will produce a very unpleasant sound when air movement.

ducts Ventilation for private homes - Requirements and features

To ventilation system works with maximum efficiency it is necessary that the inner surface of the duct have minimal resistance to air movement. Let's see how to choose the right air ducts for ventilation of your home.

matilda:

- The main taskair - this allow air to mix freely from the air intake point to the point of its exit. And to be safe in terms of ecology and fire safety. Any loss of pressure strongly influences or nullifies the ventilation by natural ventilation. Pressure losses arise from the uneven surface of the duct in the horizontal sections, in the knee, tees, etc. When the rectangular shape of the duct losses higher than circular, and the dust therein collects good.

Flexible - corrugated duct has the greatest air resistance. And it is best to use when you need to make a turn or attach to the vent of the kitchen hood.

Very often, developers, for various reasons do not want to conclude through the roof, preferring to withdraw ventilation duct through the wall. It is not right.

matilda:

–Never, under any circumstances, do not display the ventilation through the wall. Facade mess.

After a couple of years on the wall will be visible around the exit spot.
A natural ventilation output, thus more and pointless, as there will be quite a height difference, and thus the pressure.

If, during the forced ventilation system, all ducts are connected to the tribes and adapters with a single vertical channel, it is recommended to install the roof fan E190R.

To control this fan is placed in a convenient location thyristor speed controller. And they themselves are taken ducts with a diameter of 125 mm.

On FORUMHOUSE you will find an article about ventilation systems, a lot of useful information a ventilation system, A fascinating discussion of the choice of material for air ducts. And a look at our video, you can clearly see how an integrated approach to the ventilation device, not only provide a home with fresh airBut also save money.

Discuss the article and read other materials devoted to country life you can on the websiteFORUMHOUSE.

Subscribe to the channel so as not to miss the next release!