Ключевые слова: alternative, background, bio, biomass, block, brick, briquet, briquette, briquettes, briquetting, brown, burnable, chip, coal, combustible, compressed, cut, dry, ecology, energy, fire, firewood, fuel, group, heap, heat, industry, isolated, log, lumber, material, natural, pile, power, pressed, resource, sawdust, stack, temperature, texture, timber, tree, waste, white, wood, wooden,