In order to get this high caloric value Birch firewood must be kiln dried either mechanically or in a natural way. Our produced Birch firewood moisture should be around 16- 18 %. When you dried it naturally it takes around two years and then moisture is around 20 %. Birch firewood is possible to get in different packaging’s: 22l and 40 l bags, 1m3 and 2m3 boxes. The packaging is also adjustable according to your requirements.