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Maintaining a Wood Burning Fireplace Nothing warms a house like the crackle of a fireplace that is wood-burning. If you have one, it is important to maintain it regularly to avoid the risk of creosote accumulating in dangerous amounts. Airflow can be controlled using dampers and is a vital part of maintaining efficient combustion. The kind of firewood used may make a difference, with hardwoods like oak and ash producing less creosote than softwoods. Energy Efficiency Wood fireplaces c