burn danger fire fire place flames hot red warm wood burning fireplace home indoor logs old open abstract aged angles background board cracked cracking cracks damage damaged decay deteriorating Dirt disused dry-wood grained grains gray grey lined lines lumber maintenance plank planks rough rustic saw-burn-marks saw-burning split splitting surface surfaces surfacing texture textured textures timber upkeep weathered wood-grains wooden worn ashes heat heating open fire owen smoke embers forms mold very hot winter ash blackened burnt charcoal charred cinder coal log burned crack dry grunge peeled scratched