When using wood heating, fireplaces or stove complexes, people sometimes encounter the fact that smoke does not go into the chimney, but rushes into the room.
This phenomenon is called reverse traction. The reasons for its occurrence can be very different.
Why reverse thrust occurs
Any appearance of the smell of smoke or soot in the room where there is a wood-burning stove or fireplace should alert the owners.
IMPORTANT! The appearance of smoke in the room is always life threatening and requires urgent removal.
Not only does the unpleasant smell cause discomfort, but soot stains the ceilings and things. Carbon monoxide is also unsafe for health.
If you saw or sniffed that the stove began to smoke, then you need to look for the reasons for this and eliminate them. We will understand, because of which back draft occurs in the chimney.
Chimney design influence
The installation of chimneys in a fireplace, a Russian stove or a Swedish stove is made according to a different scheme. If the design was performed with violations, the owners of the house will have to face this unpleasant phenomenon.
- Backward thrust can equally occur with clogged pipessoot;
- If the pipe is too low relative to the roof ridge Smoke may enter the room.
- The absence of a chimney cap is another reason.
If the furnace is clogged, then a persistent smell of smoke will appear when lighting, when opening the door, when closing the blower.
Such symptoms indicate precisely a chimney clogged with soot or errors in its design (if smoke occurs in a new furnace).
Ventilation effect
Good traction is not possible without proper air circulation in the furnace. To regulate the ventilation in the stoves there are special dampers on the pipe and stove-blower doors. If, during the ignition of the furnace, a reverse draft suddenly occurs or is completely absent, then the smoke goes into the room. In such cases, the first thing to do is check if the damper and blower are open.
IMPORTANT! To enhance the air flow, it is also necessary to correctly place the pipe on the roof. If its upper edge is located below the ridge of the roof of the house, then the occurrence of reverse traction is inevitable.
Natural factors
In areas where in the cold season often strong winds and snow blow, back draft can occur with sudden gusts.
To eliminate this problem, special dividers and caps on the chimney pipe are needed. They will help ease the gusts of wind and it will not blow smoke back into the room.
It often happens that you have to heat the house from night dampness or "non-residential spirit". If this is done during the day, then the temperature on the street is higher than in the house. In this case, the occurrence of backward thrust becomes commonplace. As the chimney and furnace are heated, normal air circulation is restored.
Chimney condition and operation features
As stated above the accumulation of soot in the chimneys leads to a decrease in traction and the appearance of smoke in the house.
Experienced stove makers are advised to always melt the stove with the damper and blower fully open. As the chimney warms up, the soot burns out and turns to ash. Then he leaves with the smoke outside.
The Importance of Eliminating Backdraft
Why is the appearance of back draft in the furnace so dangerous?
First of all, the fact that carbon monoxide can cause death. Its atoms replace the oxygen atoms in the blood and cause asphyxia or severe poisoning of the whole organism.
Do not risk the lives of your loved ones. Better with the slightest problems with the stove, you should immediately contact the professionals. They will clean the chimney, correct the design flaws. They will also advise on how to handle a fireplace or stove.
It is easier to prevent trouble than to suffer later.
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