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An automatic flue damper is an energy-saving device that closes off or restricts an appliance flue when the appliance is not operating...

Chimneys should extend at least 2 feet higher than any portion of a building within 10 feet, but not less than 3 feet above the highest...

Fuel-Gas Vent Terminations The type of venting materials used for fuel-gas vent terminations depends on the operating characteristics of...