7'' DuraPlus 11'' Square Ceiling Support Box - 7DP-CS11

Use with flat, vaulted, or cathedral ceilings. This DuraPlus component supports up to 40' of chimney pipe with a built-in starter section. The Square Ceiling Support box features a sleek black finish to add pleasing aesthetics to the fully functional build.

DuraPlus is a triple-wall, all-fuel chimney for use with wood stoves, fireplaces, furnaces, boilers, stoves, ranges, water heaters, or other appliances fueled by wood, oil, coal, or gas.

See all 7" DuraPlus Chimney Pipe.

The Simpson DuraPlus all-fuel chimney system is for use with wood stoves, fireplaces, furnaces, boilers, stoves, ranges, water heaters, and other appliances fueled by wood, oil, coal, or gas. The innovative triple wall construction is designed to stay cool on the outside, and provide hot drafts on the inside to boost stove efficiency which in turn, makes for a fire-safe construction that protects both the chimney as well as the building. The triple wall chimney features 2 insulating layers. A ceramic blanket and air space provide security to the design. 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 allows the chimney liner to expand outwardly in a radial direction.

DuraPlus components make for easy installations offering a precision twist-lock connection that secures without the use of gaskets or sealants. Safety and efficiency of the chimney is maintained after the installation with a 2" minimum clearance to combustibles.

  Installation Instructions for Simpson DuraPlus All-Fuel Chimney System.

• Diameter: 7"
• Construction materials: .016" 430 stainless steel outer wall, .018" intermediate liner, .016" 430 stainless steel inner liner
• Clearance: 2"
• Listings: UL listed to UL 103 (MH7399)
• Painted black
• Supports up to 40' of DuraPlus chimney
• Starter section built-in

WARNING: This product can expose you to chemicals including Chromium, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to http://www.P65Warnings.ca.gov.