6DP-CS11 6" Dura-Vent DuraPlus Cathedral Ceiling Support, Galvalume Painted Black, Trim Collar Included
The DuraPlus Square Ceiling Support Box is used with flat, vaulted, or cathedral ceilings. Square Ceiling Support Box is painted black. Refer to Ceiling Pitch table to determine size of support box needed. Supports up to 35’ of DuraPlus Chimney. Starter Section built in. Trim included.
DuraPlus Chimney 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.
Materials and Construction
.016" 430 stainless steel outer wall or .018" galvanized steel outer wall. .018" aluminized steel intermediate liner. .16" 430 stainless steel inner liner. insulated layers of ceramic blanket plus ventilated air space. Locks tightly with a precision twist-lock connection.
2" clearance to combustibles.
UL Listed to UL 103HT (MH7399).
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°F flue gas temperatures, DuraPlus is subjected to rigorous and stringent HT requirements of the UL standard, including one hour at 1400°F, plus three ten minute chimney fire tests at 2100°F.