angles appearance cap chimney chimney-cap direction fire foliage fronds metal palm-fronds palm-tree roof roofing small smell smoke smoking trees vegetation vent wind wood-fire burn fireplace firewood forest fuel log logs material timber tree wood wooden burning cook cooking hot outside oven pizza restraurants taiwan traditional arrow board canada colour conifer danger flammable indicator inflammable notice risk sign warning background barbecue bark chopped heating pile piled texture textures warm Barrañan burnt carbonization carbonize carbonized coruna eu galicia oxidation Spain