|Heating is of great importance especially in central and northern Europe.
The main forms of fuel in use are oil, gas and solid fuels, although the majority is made up of oil heating.
No matter the size or form of the heating system, they all need a chimney. Old chimneys tend to contain twists and turns on their way outside and hinder the build-up of a proper draft. But it makes no difference whether old or new, problems can arise everywhere.
A weak draft can cause faulty burning and lead to smoke and fumes entering the rooms.
The cold exterior air enters the chimney and creates a counter pressure to the warm rising fumes. These fumes are then cooled quicker than normal, preventing a complete exit from the chimney. Furthermore there is also the problem of flying sparks, especially in regions with weather inversion or strong winds. Flying sparks are the number one cause of the dreaded chimney fires. In the case of wood fuel, the risk of a chimney fire is increased due to an incomplete exit of the fumes causing a build-up of pitch. The pitch is then ignited by flying burning sparks. Chimney fires have often been the cause for entire buildings going up in flames.
The inefficient burning prevents the build up of the necessary heating temperature and can result in a definitive decrease of air quality within the house. If the smoke temperature is not hot enough the fumes cannot exit the chimney properly and start to condense. This condensation results in creosote build-up in chimney and flue. Creosote destroys the chimney and narrows the flue, decreasing draft efficiency.
The consequences are extensive and expensive reparations since the damages are discovered much too late.
Did you know that 1 mm of soot results in a 5 percent loss of energy?
A thorough cleaning of the heating system and the guarantee of a good-working flue in the chimney is a worthwhile economical consideration