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Yes, you should seal and cap an unused chimney to protect it from damage. Sealing the structure helps prevent moisture damage, which can lead to issues like cracks, spalling, efflorescence, and damaged mortar joints. Capping the chimney is also crucial to prevent blockages, damage from invasive critters, and downdrafts, while still allowing for proper air ventilation to manage moisture. For the best results, consult a chimney professional to select the right type of chimney or flue cap for your home. It's also wise to continue with annual chimney inspections to maintain the structure's integrity.

A spark arrestor is a simple metal mesh device that prevents flammable particles from escaping from a combustion source and causing a fire. You typically find these attached to gas or diesel engines on things like cars, generators, and garden tools (lawnmowers, chainsaws, etc.). Fireplace or wood-burning stove chimneys also have spark arrestors attached to or sitting under the chimney cap to capture burning embers.

No. Pellet stoves are specifically designed to burn manufactured wood or biomass pellets. Attempting to burn other materials, such as regular firewood or paper products, can damage the stove, compromise its efficiency, and even pose safety hazards due to inconsistent combustion and increased emissions. It's crucial to follow manufacturer guidelines and only use pellets that are specifically recommended for your pellet stove model to ensure safe and optimal performance over its life span.

Bioethanol fireplaces are safe when users follow the instructions and maintain the fireplace. Ethanol is flammable, however, and should be kept away from flammable surfaces, children, and pets.