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® 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.

What's Included

• Ceiling Support Box

Features

• Supports chimney pipe and provides a positive connection between support box and chimney with a built-in twist-lock.
• Designed for installation in flat ceilings only.
• Supports up to 35’ of DuraPlus chimney pipe.
• Use adapter to attach DVL or DuraBlack to the support box.
• A 2” wide trim collar is included. Not painted, but can be painted with high temperature paint.
• For adapters, see DVL and DuraBlack section.

Specifications