Ключевые слова: alternative, balance, biomass, brown, burn, close, closeup, co2, compressed, consumption, eco, ecological, ecology, economy, emission, energy, environment, environmental, fire, fireplace, fuel, green, heat, hot, mass, material, natural, nature, needle, neutral, pattern, pellet, piece, pine, power, pressed, recycling, renewable, saving, season, stack, timber, warmth, winter, wood, wooden,