Ключевые слова: ash, biomass, boiler, bucket, bulk pellet, calorific value, co2, cold, combustion, ecological, emissions, energy, fire, flame, fuel, hands, heat, heat source, heating, house, natural, pellet, pressed sawdust, raw material, renewable, renewable energy, sacks, sawdust, shovel, smoke, stove, sustainable, sustainable development, temperature, winter, wood, wood pellet,