The picture corresponds to the installation of several chimneys of combustion gases in a residential building in La Rioja. Twin wall stainless steel chimneys have been installed as required by the norm UNE 123001 but, when completing the installation, the following mistakes are made:
- The three evacuation chimneys are completed at the same height.
- They reach the same height that the concrete element with the ventilation outlet in the annexed building.
- Revoke problems in the chimneys, especially if the three of them…