Fuel briquettes

 Angara pine is a type of coniferous evergreen tree that grows in the Krasnoyarsk Territory and Irkutsk Region of Russia, specifically in the Angara River basin. This tree has traditionally been considered one of the best choices for producing various types of lumber due to its numerous advantages. Some of the advantages of Angara pine include its high density, hardness, and mechanical strength. It also has low thermal conductivity, making it ideal for use in cold climates. Additionally, Angara pine resists temperature and humidity fluctuations, as well as rot and discoloration. It is also resistant to warping, which makes it a durable material. In contrast, other species of pine trees that grow in central Russia do not possess these qualities to the same extent. The wood from ordinary pine is softer and has significantly higher thermal conductivity. The reason for these exceptional qualities in Angara pine remains a mystery, but it is likely due to genetic differences between the species.Angara pine owes its unique properties to the harsh climate of the regions where it grows. The severe weather conditions not only form the famous "Siberian character" but also contribute to the unique properties of the wood. The long and frosty winters and short, cool summers with little sun and heat slow down the growth of trees, leading to wood compaction. This can be seen clearly when looking at the end of a cut tree, where the annual rings are very close together. The distance between the rings in Angara pine wood is 1-2 millimeters, which is three times less than the distance in the central Russian pine.