DuraPlus is designed to stay cool on the outside， to provide a hot draft on the inside， to boost stove efficiency and to provide for a fire-safe design that protects both the chimney and the building. This triple-wall chimney features two insulating layers， ceramic blanket， plus air space. The ceramic blanket insulation is held securely in position， eliminating hot spots common with loose-fill type insulations. In the event of a creosote fire， the compressible blanket insulation permits the chimney liner to expand outwardly in a radial direction. Designed for normal， continuous operation at 1000 degrees F flue gas temperatures， DuraPlus is subjected to rigorous and stringent HT requirements of the UL standard， including one hour at 1400 degrees F， plus three ten-minute chimney fire tests at 2100 degrees F.

• Brand Name: DuraVent
• Sub Brand: DuraPlus
• Pipe Diameter: 6 in.
• Material: Galvanized Steel
• Adjustable: Yes
• Product Type: Fireplace Roof Flashing
• Chimney Vent Type: Type A
• UL Listed: Yes
• Insulated: Yes
• Maximum Temperature: 2100 �F
• Packaging Type: Boxed
• Compatible Fuel Type: Natural Gas/Propane