The importance of outside air for your Majestic stove can be vital. It can help you avoid negative pressure in the house, provide oxygen for the fire, and keep the flames glowing happily when they would otherwise die out. Reliable ductwork factors into the success of using outside air, though, and the Majestic ID 6 Inch Insulated Flex Duct for Outside Air - 42 Inch Sections efficiently moves fresh air from outside your home into the combustible stove. The duct comes in two separate flexible sections, and the insulation will keep air flowing efficiently and safely. The overall weight of the two ducts is 2 lbs.