Move exhausts and chimneys
Make sure that the polluted air from exhausts and chimneys is properly discharged and does not come back into your building or that of your neighbors.
You tackle the following challenges:
That's how you do it
Flue gases and polluted air often come from chimneys and exhausts of heating appliances, ventilation systems and extractor hoods. It is important to properly discharge these emissions to the outside air and to ensure that they do not re-enter your building or your neighbors through windows, air vents or supply points of ventilation systems. Also avoid that the emissions from your chimney or exhausts remain in your outdoor space (e.g. the playground) or in the gardens of local residents.
Tips
- Respect existing regulations regarding chimneys and drainage facilities. In the Netherlands, the Building Decree (Article 3.51) regulates where supply and drainage facilities may be placed. In Flanders , local regulations apply to this, and there is also a general guideline for the prevention of nuisance.
- Check that the exhaust vents are at a sufficient distance from windows, air vents and fresh air intakes, both from your own building and that of your neighbors. Reposition the drain holes if necessary. The difference in height between supply and exhaust openings is best as large as possible, whereby the smoke outlet is preferably at least 2 meters higher than the air supply openings and windows.
- The chimney should preferably be at least half a meter above the ridge of the roof, preferably at least 2 meters with a flat roof.
More information
- Supply of combustion air and exhaust of flue gas (Bouwbesluit online, the Netherlands)
- Guideline for preventing and limiting nuisance from smoke from domestic wood heating appliances (WTCB, Flanders)
- Legislation on chimneys (Department of Environment, Flanders)
