What to consider when a chimney?

Chimneys for fireplaces and stoves
A fireplace or stove requires a chimney principle, which discharges the flue gases. An exception is bioethanol fireplaces or Gelkamin that can be operated without a chimney.Chimneys for fireplaces and stoves must comply with EN 18160th

The chimney-minimum cross-section should at least open fireplaces 400 cm2 (20 x 20 cm) are in closed fireplaces 196 cm2 (14 x 14 cm).

A fireplace will usually have a separate chimney. The multiple occupancy of a chimney (multiple sites on a chimney fire) is only possible if the furnaces meet the DIN 18891 type first Sollche fireplaces / stoves should only be operated with a closed fire door. But even here there are certain rules and multiple use of the chimney must be approved in advance by the chimney sweep.

What are the chimney are there?
In the election of the chimney, you have several options available. Classic brick chimneys are being replaced by prefabricated chimneys, or chimneys.

Modern furnaces are due to its high efficiency, low exhaust temperature. This has the effect that the temperature of the flue gases at the chimney head falls below the dew point and condensation water is formed, which will damage the masonry. Modern chimney systems are often suitable for moisture-resistant and heating systems with lower exhaust temperature.

Effective stack height
In connection with the chimney is often referred to the effective stack height. As an effective stack height is defined as the portion between the exhaust pipe of the fireplace insert or the bottom ledge of the fireplace flue opening up to the top of the chimney opening.

The effective height of the Chimney must be occupied with a simple chimney at least 4 meters. Multiple finished chimneys are connected to the combustion of solid fuels require at least 5 m effective stack height.

The manufacturer of fireplace inserts or stoves may require greater effective stack height, to ensure the proper function of the heating system. The chimney (buoyancy of the flue gases) improves with increasing effective stack height.