Item # bci2476088

DuraVent 6" Inner Diameter - DuraTech Class A Chimney Pipe - Double Wall - 14" Pipe Length

Model: 6DT-21TASS

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Product Overview

DuraTech Collection 6" x 14" - 21" Class-A Adjustable Pipe Length

Warranty Notice: M&G DuraVent warranty applies to this professional grade product only when installed by a trained professional installer.

The DuraTech 6" x 14" - 21" Class-A Adjustable Pipe Length from the DuraTech Series is designed for appliances that are tested and listed for is used with a 2100° F HT chimney system, such as wood stoves, fireplaces, furnaces, boilers, ranges, water heaters, or other appliances fueled by wood, oil, coal, or gas. Available with a stainless steel outer casing and stainless steel inner wall with twist-lock connections.


  • For Class A Chimney Pipe
  • Adjustable Length: 14"-21"
  • Inner Diameter: 6"
  • UL Listed

With a Thermal Tech blanket insulation encased between dual walls, DuraTech offers the optimum in safety and performance. It keeps the outer wall of the chimney cool, while ensuring high flue gas temperatures for optimum draft performance. 5”-8” DuraTech is a double-wall, all-fuel chimney system for use withwood stoves, fireplaces, furnaces, boilers, ranges, water heaters, or other appliances fueled by wood, oil, coal, or gas, and zero-clearance fireplaces thatare factory-built.

Looking for Simpson Dura-Vent? You found it! Simpson Dura-Vent has changed their name to DuraVent. DuraVent is a recognized technological leader in the venting industry. Consistently the first to market with new innovations in venting systems, DuraVent has captured a leadership position in emerging markets. DuraVent has patents for several products and continues to design safe and technologically advanced venting. The company's research into solving problems with corrosion, when biofuels such as corn are used, led to the break-through patent for PelletVent Pro. Scientifically proven materials and unequalled engineering make DuraVent products not only the best choice, or safest choice, but the only choice for professional quality venting products.

This product is listed under the following manufacturer number(s):

Dimensions and Measurements

14, 21 in.
Pipe Inside Diameter
6 in.
Pipe Length
14, 21 in.
Product Weight
9 lbs.

Characteristics and Features

Pipe Length
Pipe Class
Class A
Pipe Shape
Vent Construction
Double Wall

Electrical and Operational Information

Fuel Type
Coal, Gas, Oil, Wood

Warranty and Product Information

Approved for Commercial Use