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This is how the people in Siberia who stays in the little wooden houses we saw stays warm at minus 50 degrees. They have a very big stove in the centre of the house, with very thick walls, there is even a sleeping area on top and to the side of the stove and this wood fired stove keeps them warm and is used for cooking as well.

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It is also built into modern homes. I always said I still want to build one more house and I think I should include this in my planning