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

• Tee With Cap

Features

• Use for through-the-wall chimney installations.
• The tee clean-out cap is removable for easy chimney cleaning or inspection.
• Wall Straps, a Wall Thimble, and a Tee Support must be installed with the Tee as directed.
• Tees have 1” insulating blanket.
• Ventilation air for chimney must be drawn from outdoors. (See installation instructions.)

Specifications