DuraVent DuraPlus 7" x 24" Square Ceiling Support Box

Overview

DuraPlus is designed to stay cool on the outside, to provide a hot draft on the inside, to boost stove efficiency, and provide a fire-safe design that protects both the chimney and the building. This triple-wall chimney features two insulating layers (refractory blanket, plus air space). The refractory 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.

Features

• Use with flat, vaulted, or cathedral ceilings.
• The Square Ceiling Support Box is painted black.
• Starter Section built-in.
• Supports up to 35’ of DuraPlus Chimney.
• For adapters, see DVL and DuraBlack section.
• Trim included.
• Refer to the Ceiling Pitch table to determine the size of the support box needed.

Materials and Construction

• .016” 430 stainless steel outer wall
• .016” 430 stainless steel inner liner.
• .018” galvanized steel outer wall.
• .018” aluminized steel intermediate liner.
• Insulated layers plus ventilated air space.
• Locks tightly with a precision twist-lock connection.

Specifications

Downloads

• Download Product Brochure
• Download Product Catalog
• Download Installation Manual
• Download Installation Guide
• Download Typical Installation

California PROP 65: This product can expose you to Lead & Chromium, which is known to the State of California to cause cancer and birth defects, or other reproductive harm. See WARNING