Hot days and warm nights are slowly becoming a thing of the past with the arrival of September. Although we would all like to keep the summer as long as possible, in practice, mid-September is the last moment to prepare for heating our home in winter. What to burn in if we are lucky owners of a fireplace? What to decide if we want it to be ecological and economical simultaneously? How do you choose from a wide range of different types of wood? We will tell you how to approach the subject to avoid going bankrupt and calmly enjoy a heated house and a beautiful view of the fire in our fireplace.
When choosing wood for our fireplace, we should pay attention to its calorific value. It tells us how much energy we can obtain from burning a certain mass of timber. The higher the calorific value of the wood, the less wood we need to heat our home. Species of wood with the highest calorific value include beech, oak and hornbeam. When buying these types of wood, you'll pay more per square metre, but you'll need a lot less of it. This means that not only will you use less wood, but you'll also need to store less wood to last the whole season.
The second essential feature we should pay attention to is the moisture content of the wood. It should not exceed 20%. Why is this so important? Damp wood burns at a low temperature, generating soot and tar that pollutes the fireplace glass and the chimney system. At the same time, damp wood has up to half the calorific value of low-humidity timber, as the heat energy is used to evaporate the moisture in the wood instead of going into your home. In addition, burning wood that does not meet the moisture content requirements may be fine! However, some municipalities have passed resolutions prohibiting wood burning with a moisture content above 20%.
Buying wood with the correct parameters will undoubtedly be beneficial not only to our household budget but, above all, to the environment. Therefore, if we want to ensure that the wood we want to buy meets the above requirements, we should believe in advance from reliable suppliers. It is also worth thinking about this well in advance to avoid a situation in which the goods we have chosen are unavailable. We have to decide instead for products with worse parameters.