Exhaust system consists of building components such as chimney, connection piece, exhaust pipe or air-exhaust system for the discharge of flue gases from fireplaces.
The exhaust systems also include systems for the removal of combustion gases from combined heat and power plants, heat pumps and stationary internal combustion engines.
Exhaust system for low pressure operation:
A system in normal operation where the static pressure inside is lower than the static pressure in the vicinity of the exhaust system at the same height. The exhaust gases of a connected fireplace are dissipated by the naturally occurring pressure difference to the outside.
Exhaust system for over pressure operation:
System in which the internal static pressure may be higher than the static pressure in the vicinity of the exhaust system at the same level. Fireplaces can also be connected to such an exhaust system in which the over pressure in the flue outlet may be regulated according to plan.
Exhaust system for dry operation:
System in whose normal operating conditions the temperature on the inner surface must be above the water vapor dew point temperature of the exhaust gas.
Exhaust system for wet operation:
System in normal operating conditions for which the temperature on the inner surface may be below the water vapor dew point temperature of the exhaust gas. It should be noted here that the exhaust system used is for such a mode of operation. This is the case when it is marked with "W" and has a corresponding corrosion resistance, otherwise it can lead to corrosion damage.