smokebox

"The chimney of the old factory belched out thick, black smoke. "

"The train passes through the tunnel. "

"The dry-stone wall used a large, flat through to support the top stones. "

"The careless student accidentally fired the paper in the wastebasket. "

"Snow buildup on roads makes for hazardous driving."

"The meeting was held in the large chamber of the school library. "

"Check the oil in your car once a month."

"The ancient Romans used a powerful siege engine to break down the city walls. "

"The stove vents to the outside."

"Before dinner, I finished my homework. "

"At the maple syrup farm, my grandfather was the head boiler, carefully monitoring the sap as it cooked down. "

"The construction worker built a new house. "