The geyser is one of the most common and economical water heaters. Despite the ease of use and compact design, the installation of the device requires permission and the participation of a specialist. The installation of an extractor hood for a geyser is necessary, since the combustion products must be led out onto the street. How to organize and equip the duct, you will learn in the article.
Types and features of ventilation
In a private house, the output of combustion products is displayed directly on the street, and in an apartment - into the ventilation duct. The advantages of a private house are that the canals are located in a place convenient for you. The apartment has to adjust and spend more material to bring to the mine.
Depending on the location of the outlet, air ducts are divided into:
- Chimney. They are connected to the ventilation well.
- Coaxial. The conclusion leads through the wall of the house.
According to the material of manufacture:
- Steel pipes.
- Aluminum, corrugated.
Corrugated aluminum pipe is lightweight and resistant to condensation. It is easier to install, since the wire inside allows you to bend the product in any direction. The standard diameter of the pipe is 11-13 cm.
A wire is used as a frame. Several layers of aluminum foil are superimposed on top and laminated. The corrugation can stretch up to three meters.
The steel exhaust pipe can be galvanized, enameled or stainless steel. Due to the smoothness of the channel aerodynamic drag is reduced, the pipe is less polluted.
Its advantages:
- Reduced noise level.
- No cracks or dirt.
The disadvantage of the design is the abundance of condensate. Therefore, in winter, additional insulation may be required.
Coaxial tap is especially popular. Inside, the structure is divided into two parts: oxygen comes from the street for combustion into one tube, and processing is discharged into the other. The advantage of the product is that combustion does not occur indoors.
How to make a hood
What to consider before installation:
- Power of a geyser.
- The number of products allocated.
- The temperature of the products of combustion and air outside.
- Chimney height (for gas boilers at least 2 meters).
Height is important to create traction. For columns, the pipe should rise above the roof by at least two meters. To install the equipment, determine the installation location and mark the mounting locations. After installing the housing, connect the pipe.
If you opted for a steel duct, you will need L-shaped adapters. Joints are sealed with sealant.
The corrugated pipe is easier to install, it is flexible and long. If you need to build up a piece, you can use metal tape.
SNIP Rules
Follow these guidelines:
- The hood is installed near the wall of non-combustible materials.
- According to the norms, no more than two devices can be connected to one hood if they are in the same room.
- If there are no chimneys and channels in the building, you can make attached chimneys.
- It is allowed to connect the column to the chimney of the furnace, if its design allows efficient removal of combustion products.
Since the branch pipes are responsible for the normal operation of gas equipment, they serve as a means of protection against gas leaks and smoke exhaust, it is necessary to approach the choice of design with particular care. It is better to entrust the installation of the column and ventilation to a specialist. He will take into account the features of the house, make calculations and carry out installation in accordance with all the rules.