The article deals with the current issue of solid household waste management and focuses on the fact that the most effective method of reducing the amount of waste is heat treatment. Attention is paid to such an important parameter when burning solid household waste as caloric content. A study of the calorific value of various types of waste, wood solid fuel pellets made from different types of wood was conducted. Waste samples were obtained during an on-site expedition to the municipal solid waste landfill (MSW) in the village of Rybne An analysis of the calorific value of the waste mixture, which corresponds to the morphological composition of the landfill (MSW) in the village of Rybne what suitable for burning. Also, an analysis of the calorific value of the mixture of wood solid fuel pellets, which was made from different types of wood, was carried out. The level of thermal energy for different types of waste (plastic, bio-waste, rubber, paper, textiles, wood, etc.) and different types of solid wood pellets (oak, beech, pine, etc.) was studied. The calorific index of different mixtures of waste and pellets at different percentage values of the components in the mixture was calculated. Microsoft Excel software was used to simplify the calculation. Real caloric values obtained during a laboratory study using an IKA C1 calorimeter were used in the determination. Through transformations, ratios and calculations, dependencies were established for each of the types of waste and solid fuel wood pellets. Using the values of calorific value, which were obtained during combustion, the minimum and maximum levels of caloric content at different percentage values of the components were found. A calculation algorithm has been created, which can be used to determine the amount of thermal energy at various percentage ratios of waste types to wood solid fuel pellets