Gravity (natural) Ventilation Units - Natural Ventilation for Smelters
The existing ventilation openings at the aluminium smelter of Nordural Nordic Aluminium in Iceland no longer satis-fied current requirements.
Nordural Nordic Aluminium
Project Brief:
Natural Ventilation for Smelters
Colt Solution:
Gravity (natural) ventilation units
Colt Products:Colt Labyrinth
Project Details:
Nordural Nordic Aluminium
Project Location:
Colt Solution:
- Gravity (natural) ventilation units
Colt Product:
Existing aluminium smelter
At Nordural's request, Colt implemen-ted a solution. Keeping the need for additional constructional provision to a minimum, Colt replaced the ventilation openings in this building with gravity ventilation units, type Colt Labyrinth.
This comprised 780 metres in total.

Construction of a new aluminium smelter
Afterwards, Colt was asked to also fit a gravity ventilation system to the new building, construction of which had already begun.
The Labyrinth fitted to the new building comprised approximately 1200 metres with a roof opening of 4.5 metres.
Construction of a new aluminium smelter
Afterwards, Colt was asked to also fit a gravity ventilation system to the new building, construction of which had already begun.
The Labyrinth fitted to the new building comprised approximately 1200 metres with a roof opening of 4.5 metres.