Lavvu is a temporary dwelling used by the Sami people of northern Scandinavia. It has a design similar to a Native American tipi but is less vertical and more stable in high winds. It enables the indigenous cultures of the treeless plains of northern Scandinavia and the high arctic of Eurasia to follow their reindeer herds.
The lavvu has been – and still is – a strong symbol for the Sami as a cultural haven.
Inside the living quarters of the lavvu, there is a fireplace in the middle used for heating and to keep mosquitoes away. The smoke escapes through the smoke hole in the top of the lavvu that is usually left open. Occasionally a rough blanket is wrapped round the smoke hole to make the opening smaller, but not to the point where smoke would be prevented from escaping. In order to prevent smoke from building up inside, proper air circulation is maintained by leaving an opening between the ground and the cover, or leaving the door slightly open. Keeping the fire hot enough to let the heated smoke rise through the smoke hole is necessary.http://en.wikipedia.org/wiki/Lavvu