chimney can

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chimney pot, chimney can

chimney pot
A cylindrical pipe of brick, terra-cotta, or metal placed atop a chimney to extend and thereby increase the draft.
References in periodicals archive ?
Blockages in the chimney can alter the combustion balance or cause carbon monoxide to enter the home.
Creosote buildup in a chimney can turn what is usually a source of comfort and coziness into a funnel of fiery destruction and even death.
An improperly operating furnace or bad chimney can cause a potentially lethal buildup of carbon monoxide in the home," said Jerry Richards, senior engineer for the utility's gas distribution services area.