To bur firewood well, it must be good quality and well dried up. As well dried wood can be considered wood which had been stored,from 18months to 2 years, in a well ventilated shed. Permisable moisture content is 20%. From Latvian wood specie the most commonly used heat is from oak firewood(ratio 10.00) compared with the ash - 9.60, maple - 8.75,birch - 8.33, alder - 7.10, aspen - 5.00 and lime - 4, 20 Because each heatingappliance, depending on its age has a different effectiveness of the work, its imposible tell you how many cubic meters firewood will be need to spend the winter in a warm place. It can be said that the 2-3 room apartment with an old stove in winter need average 5 to 7 stacked cubic meters of firewood. If you need fire wood for heating, it is advisable to know that the fireplace with the same amount of wood can burn both 3 and 4, and 8 hours, depending on the mode of combustion furnaces and classification. To calculatethe fuel used per year, you can use the formula: 0.03 m³ of wood per 1 m³ of heated space. For example, if the living room area is 100 m and a ceiling height of 3 m, thespace cubic capacity multiplied by 0.03, will get the 9 So the space heating required 9 m³ of wood per year. What kind of wood you choose? This question is an unequivocalanswer. For example, the combustion of coniferous wood - spruce and pine - from a lot of sparks, so it is better to prefer hardwood firewood - birch, aspen and alder. Some suggest alternating birch and alder, as each tree has its flaws and virtues - birchcombustion give off much heat, but at the same time a much soot, while alder give offless heat, but the great burning soot, thereby preventing the precipitation of the flue the walls.To bur firewood well, it must be good quality and well dried up. As well dried wood can be considered wood which had been stored,from 18months to 2 years, in a well ventilated shed. Permisable moisture content is 20%. From Latvian wood specie the most commonly used heat is from oak firewood(ratio 10.00) compared with the ash - 9.60, maple - 8.75,birch - 8.33, alder - 7.10, aspen - 5.00 and lime - 4, 20 Because each heatingappliance, depending on its age has a different effectiveness of the work, its imposible tell you how many cubic meters firewood will be need to spend the winter in a warm place. It can be said that the 2-3 room apartment with an old stove in winter need average 5 to 7 stacked cubic meters of firewood. If you need fire wood for heating, it is advisable to know that the fireplace with the same amount of wood can burn both 3 and 4, and 8 hours, depending on the mode of combustion furnaces and classification. To calculatethe fuel used per year, you can use the formula: 0.03 m³ of wood per 1 m³ of heated space. For example, if the living room area is 100 m and a ceiling height of 3 m, thespace cubic capacity multiplied by 0.03, will get the 9 So the space heating required 9 m³ of wood per year. What kind of wood you choose? This question is an unequivocalanswer. For example, the combustion of coniferous wood - spruce and pine - from a lot of sparks, so it is better to prefer hardwood firewood - birch, aspen and alder. Some suggest alternating birch and alder, as each tree has its flaws and virtues - birchcombustion give off much heat, but at the same time a much soot, while alder give offless heat, but the great burning soot, thereby preventing the precipitation of the flue the walls.