7 Inch DuraPlus Stainless Steel Wall Thimble

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  • DuraPlus Stainless Steel Wall Thimble 7"
  • DuraPlus Stainless Steel Wall Thimble 7". The size is indicated on the image.
  • DuraPlus Stainless Steel Wall Thimble Sizing Chart
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Its innovative triple-wall construction keeps things cool on the outside while creating hot winds within to boost stove efficiency. This has a thickness range of 4 to 7 inches and fits between standard wall studs. This UL-listed product comes with a limited lifetime warranty. This results in a fire-resistant structure that protects the chimney and the building. These triple-wall chimneys feature two degrees of insulation.

  Product Features:

  • Triple-wall chimney
  • Clean, smooth exterior finish
  • 2" clearance to combustibles
  • Interior trim ring painted black
  • Use when air-cooled chimney is required
  • For adapters, see DVL and DuraBlack section
  • Outer diameter is 4" larger than inner diameter
  • Adjusts from a minimum of 4 1⁄4” to a maximum of 7 1⁄4” 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
  • Must be installed with DuraPlus chimney pipe horizontally through the wall and extend a minimum of 2” into the room beyond the interior wall
  • Free-floating inner 430-alloy liner maintains structural integrity in chimney fires
  • For uses with wood stoves, fireplaces, furnaces, boilers, stoves, ranges, water heaters, or other appliances fueled by wood, oil, coal, or gas

 Product Specifications:

 Size:  7" Inner Diameter
 Outer:  14" diameter
 Length:   17-Inch
 Depth:  4-Inch
 Width:  17-Inch
 Dimensions:  17" x 17"
 Wall Thickness:  4-3/4" to 7-3/4"
 Pipe Class:  Class A
 Vent Construction:  Triple Wall
 Weight:  6.8 lbs.
 Material:  Stainless Steel
 Use:  Ducting and Venting
 Repair & Replacement
 Fuel Type:  Coal, Gas, Oil, Wood
 Product Type:   Wall Thimble

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Warranty Information

DuraVent, Inc. (“DuraVent”) provides this limited lifetime warranty for all of its products with the exception of Ventinox® (lifetime), and PolyPro® (ten years). Subject to the limitations set forth below, DuraVent warrants that its products will be free from defects in material or manufacturing, if properly installed, maintained and used.

DuraVent products are fully warranted if installed only by a professional installer. This Warranty is transferable from the original homeowner to the buyer of the home.

This warranty does not cover normal wear and tear, smoke damage or damage caused by chimney fires, acts of God, or any product that was:

(1) purchased other than from an authorized DuraVent dealer, retailer or distributor;

(2) modified or altered;

(3) improperly serviced, inspected or cleaned; or (4) subject to negligence or any use not in accordance with the installation instructions included with the product as determined by DuraVent.

This limited lifetime warranty applies only to parts manufactured by DuraVent.

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