Ventilation for gas column

Ventilation for gas column, its types and main characteristics

When buying hoods for gas boiler, you should be familiar with the basic standards.Standard pipe diameters produce 11cm and 13cm.Channels with a smaller diameter are needed to connect to the columns with the same water points and kept the power no longer 19kVt.

tubes with a larger diameter, is connected to the columns in which two or more water points.They are used for devices whose power is greater 21kVt.

possible installation of hoods, rotated by 90 degrees.To do this, use a special knee, but it should be understood that such construction significantly reduce cravings.

When ventilation installation for the gas column, it is best to use corrugated pipe.Their cost is relatively high, they are mobile and reliable.As mentioned above, the standard diameter of 11 and 13 centimeters.The multilayer structure consists of an aluminum foil coated with a special lamination.To mount inside a steel wire, which allows you to create the form and the ventilation in the right direction.Their main advantage - stretching.Corrugated pipes can stretch up to 3 meters.In the extreme case, if necessary, increase the duct, it is possible to use special metal adhesive tape.In addition, a chimney resistant to the harmful effects of condensation and is very easy to install, thanks to its low weight.

Steel ventilation for gas boiler is covered with a white heat-resistant enamel.Its size can be up to half a meter.This pipe can also be mounted at an angle of 90 degrees when the room has a horizontal section, the length of which is calculated based on the degree of optimum traction.Unlike corrugated chimney in steel formation of abundant condensation occurs due to large temperature fluctuations.In this regard, you need to stock up for winter insulation for pipes to avoid freezing.

gaining increasing popularity coaxial ventilation for gas columns.With their help, not out of the room air enters the boiler, and from the street.Inside this tube (air supply), the second set (for the exhaust).The incoming air is heated by the outside of the inner tube, and that, in turn, is cooled.All this has a positive effect on the performance of the gas column.Note that when you install this hood, you must make the slope in three degrees closer to the ground, so that the gas column did not get different rainfall.

Installation drawing for the gas column and the basic rules SNIP

Basically, a lot of talk about the plant itself is not necessary, all is relatively simple.

1. find an acceptable place for a chimney (if the house already has a boiler or fireplace with the final stretch, it is reasonable to draw a new chimney is to it).
2. Calculate the required parameters, suitable for the output of products of combustion.Determine
3. dimeter extracts, from the data output of the gas boiler, the quantity of processed gas discharged from the tube at a predetermined power inlet air temperature difference and the vent gas, and also the height of the chimney.
4. Calculate the height of the ventilation, taking into account the type of gas equipment.
5. Make a hole, which will host the hood and insert asbestos tube, the diameter of which should be more than 12cm.
6. Install the hood at least one meter above the surface of the roof (it will provide good traction).

And of course, do not forget about the rules SNIP.According to them, ventilation installed inside or outside the room, on the walls or partitions that are isolated special non-combustible material.In the case where such a wall is not available, set the push-or root pipe.

Remember that for each individual heating unit should be separate ventilation.An exception may be only when the two heating unit installed on the same floor space, with one stack is connected to two devices.

also allowed the connection of two gas columns to the same drawing, provided that the waste smoke coming from the instrument will enter the ventilation at different levels and positioned from each other at a distance of more than 75cm.