Most owners of private homes tend to equip them with a cellar. This helps with the convenience of storing a significant number of products. One of the most important conditions for the operation of this useful room is the creation of a proper ventilation of the cellar with two pipes.
Supply and exhaust ventilation in the cellar
Natural ventilation in the cellar is created by installing two ducts:
- Supply - is designed to ensure the flow of fresh air into the cellar;
- exhaust - its purpose is to remove from the room stagnant air.
As a material for them, galvanized or asbestos pipes are used. In order to determine their diameter, the following calculation is used: for 1 sq. M of room takes 26 sq. Cm air duct.
Installation of ducts implies the implementation of a certain algorithm of action, namely:
- The exhaust pipe is positioned along one of the corners of the room. In this case, it should be placed in such a way that its lower end is under the ceiling. It should go vertically through the whole cellar, the roof and be above the ridge by half a meter. In addition, the ventilation of the cellar in winter should ensure a reduction in the amount of condensation and frost inside the pipe. To do this, it is warmed. This is done in this way: one pipe is laid in the other, and the gap between them is filled with a heater, which uses a mineral wool having a thickness of about 50 mm.
- Installation of the supply pipe is made in a corner, which is opposite to the location of the exhaust. The open end of the supply air duct should be located at a height of 40-60 cm above the floor. The pipe passes through the ceiling, and its end is 80 cm above the floor. It is advisable to install a fine mesh on the upper opening of the duct to ensure the protection of the cellar from penetration of pests.
The principle of operation of ventilation is that due to the different specific gravity of warm air inside the room and the cold outside, it circulates through the pipes. In this case, there is a danger of a strong draft and a cooling cellar. This is especially likely for ventilation of the cellar in the winter. To prevent this from happening, special valves must be installed on the supply and exhaust pipes. This will allow you to regulate the flow of air, closing them at the right time.
Errors of cellar ventilation
Organize in a cellar the correct air exchange is very important, as it will promote long-term storage of products. If errors are made when creating the ventilation of the cellar, this will lead to the following consequences:
- if the ventilation is weak, then there will be increased humidity and air stiffness, as well as rapid decay of vegetables. To solve this problem, additional fan installation on the exhaust channel will help;
- if the ventilation is too strong, it contributes to the emergence of drafts and shrinkage of root crops. The air flow can be regulated by means of valves installed on the exhaust and supply air ducts.
In addition, if you have to deal with a very large room, you can improve the ventilation system by installing fans on both the exhaust and the supply pipe.
Thus, properly organized ventilation in the cellar will protect it from dampness and will contribute to the long storage of products that are in it. The installation of the system will guarantee the normal functioning of the premises.
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