Since 2008, increasing the share of renewable energy in total energy production has been a priority for all Member States of the European Union, including Poland. The combustion of biomass, and especially logs, still constitutes an important source of heat for households. However, for the process to be efficient and environmentally friendly, the firewood should be correctly prepared by bringing its moisture content down to 20% or less. The most widespread and cheapest method of reaching that target is wood seasoning. The aim of this work was to assess the correctness of firewood seasoning in the Podkarpacie (Subcarpathian) Region based on results from a study involving 150 woodburning households. Furthermore, the obtained data were used to estimate theoretical seasoning duration needed to reduce firewood moisture content down to 20%.