Life in the modern metropolis is so active that many are drawn to outdoor recreation. Increasingly, people began to install barbecues in summer cottages, in the yards of private houses, and even in an apartment or on a balcony. However, the smoke and fumes emanating from the barbecue when frying meat, fish or vegetables can spoil the mood not only for the instigator of the picnic, but also for the neighbors. This is what exhaust hoods are made for.
Design Features
This umbrella is a kind of chimney - exhaust. Serves to purify the air from combustion products, smoke and unpleasant odors. It is installed directly above the brazier. In addition, the umbrella will help get rid of not only soot and burning, but also protect the brazier itself from bad weather and precipitation during operation.
The design of the barbecue umbrella is quite simple, so do not neglect your owncomfort. There are 3 main structural elements:
- smoke box;
- trumpet;
- umbrella.
The smoke collector serves to collect all volatile vapors and compounds emitted during frying. Combustion products at high temperatures become lighter than air, so they easily rise up the pipe and exit it to a safe distance. The umbrella will protect against the penetration of precipitation into the chimney, at the same time it does not prevent the free exit of smoke from the chimney. Next - about the most popular exhaust hoods.
Metal
It would be best to contact a specialist who will make a high-quality metal umbrella in accordance with all the rules, focusing on the individual features of the landscape, and correctly determine the required dimensions of the structure. If the owner of the site himself owns welding and is familiar with metal, you can make the device yourself.
Stainless steel or copper is suitable for metal construction. However, the price of such material is quite high, so you can choose another metal, pre-treated with protective agents. Umbrellas are made from sheets of selected material 3 mm thick. A thinner one will quickly burn out, and a thicker one will significantly increase the weight of the entire structure, which is also inappropriate.
Multiple types of metal can be used to give the ventilation system umbrella an exceptional design solution. If the natural color of the metal does not suit you, the product can be painted in any color with refractory paint.
Pros andcons of metal structures
A metal exhaust hood will last a long time if all the conditions for its manufacture, operation and proper care are observed. It is very easy to clean such umbrellas from combustion products. No need to buy special care products, any detergent compositions that are at home will do.
It happens that over time, the place chosen for the barbecue is no longer suitable. In this case, it will not be difficult to transfer the entire structure, but first it must be disassembled into parts.
Despite all the advantages, the material has one drawback - the metal is susceptible to corrosion, so it is best to treat with protective agents several times a year.
Brick
The principle of the structure of a brick exhaust hood is the same as that of a metal one. The design also includes a smoke box (nozzle), a pipe and an umbrella (visor).
However, such a structure has some features, if not observed, the entire structure will quickly fail. This may be dangerous to those around you. During operation, the brazier tends to heat up to very high temperatures, in which case the destruction of ordinary silicate bricks will occur. Therefore, it is best to build such an umbrella from refractory or ceramic bricks.
To give the structure maximum strength, a special metal mesh is laid between the layers of bricks. It is important that such an umbrella for the barbecue does not come into contact with a conventional roof. Slate cracks when heatedmetal tiles will peel off the paint, and the soft roof is deformed under the influence of high temperatures. In this case, the roll insulation will serve as a cushioning material between the chimney and the roof. It does not burn and perfectly takes any shape.
The disadvantage of this type of umbrella is that it will not be possible to transfer it, having previously disassembled it into bricks. It is also quite difficult to clean the surface from carbon deposits, sometimes impossible.
Selection Tips
There is no big difference in functionality between a brick and a metal umbrella, both of them perform their task perfectly. Metal are easy to install. They can be easily moved to another location. Brick, in turn, will last longer, but are difficult to install and take up more space, but they look more attractive.
Which exhaust hood is better to install depends on the availability of free space around the barbecue and financial security. It can be designed even with your own hands. At the same time, it is important to take into account the place where it is planned to install the barbecue and the material that will be appropriate for a particular site.
If it is decided to install a supply and exhaust hood in a wooden gazebo, it is important to treat it with a fire-fighting solution before that. It is also necessary to take into account that there must be at least 3 meters from the ground to the very top of the pipe.
