Decarbonising the EU’s energy system is crucial to reach the 2030 climate objectives and the EU’s long-term strategy of achieving carbon neutrality by 2050. Based on these Green Deal goals and the current energy situation in Europe, it is highly important to focus on biofuel energy sources. Our research deals with the behaviour of households in the Czech Republic and changes in their consumption habits in the last decades. The main goal of this paper is to evaluate the development of the consumption of biofuels by households for heating purposes, in comparison with the consumption of fossil solid fuels (coal and coke) in the Czech Republic in the period 2010 – 2020. The second goal is to evaluate the influence of selected socioeconomic aspects/variables on the consumption of biofuels. Regarding biofuels, the analysis will focus on biomass for heating purposes, such as firewood, wood waste, pellets, and briquettes. Concerning socio-economic indicators, the analysis will be based on various data, such as GDP per capita, average wage, environmental taxation, environmental subsidies, etc. The authors will work with data published by the Czech Statistical Office, ministries, and other national authorities, as well as data from Eurostat. As a methodology, correlation and regression analysis will be used. The results will show the possible influence of selected socio-economic variables on the development of biofuel consumption by households. The recommendations will be formulated based on the obtained results.