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DuraVent 9443 6" Class A Chimney Pipe Wall Thimble

Item #: BCI1760815
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Product Details for the DuraVent 9443

DuraTech Collection 6" Class A Chimney Pipe Wall Thimble

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

The DuraTech 6" Class A Chimney Pipe Wall Thimble adjusts from a minimum of 4” to a maximum of 10” wall thickness, and fits between standard wall studs. To accommodate thicker walls, the telescoping pieces can be extended up to 16” with a field-fabricated extension installed. Interior trim ring painted black. Must be installed with DuraTech chimney pipe horizontally through the wall and extend 6” into the room beyond the interior wall. (Black painted DuraTech is available). 6” and 8” stainless steel exterior trim available.


  • For Class A Chimney Pipe
  • Adjusts to 4" to 10" Wall Thickness
  • Interior Trim Dimensions: 14" x 14"
  • Exterior Trim Dimensions: 14" x 14"

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.

Our SKU: DuraVent 9443

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

*Denotes a finish or option that has been discontinued

2 Questions from the Community
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Does the 9443 wall thimble have a 6" hole, and if it does what would I need to run the Simpson Dura-Vent triple wall pipe through the wall?

The Simpson Dura-Vent 9443 will have a hole with a diameter of 8 1/8". It is used for double wall DuraTech applications. The part number for the DuraPlus triple wall pipe application would be the Simpson Dura-Vent 9043N.

Is the insulation included with the thimble?

No, the 9443 does not include the insulation.

DuraVent 9443 Technical Specs

Configuration Wall Thimble
Fuel Type Coal, Gas, Oil, Wood, Wood/Oil/Coal
Height 13
Length 10, 4
Pipe Class Class A
Pipe Inside Diameter 6
Pipe Shape Round
Product Weight 5.6
UL Listed Yes
Vent Construction Double Wall
Vent Pipe Size 6
Width 13

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