SKU: 67769001156

Security Chimneys Secure Temp ASHT 6" x 8" Aluminum Zinc Coated Steel Pipe Length

Sale price$91.45 Regular price$101.61
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Description

Security Chimneys Secure Temp ASHT 6" x 8" Aluminum Zinc Coated Steel Pipe LengthASHT is a double wall, all fuel chimney system for use with wood stoves, wood fireplaces and other appliances using wood, oil, gas, or coal. The use of stainless steel, selected for its resistance to high temperatures and corrosion, lends outstanding durability to the ASHT high temperature chimney. ASHT features 1" of high temperature mineral fiber insulation. This insulation minimizes heat loss through the chimney walls and can withstand intense

ASHT is a double-wall, all-fuel chimney system for use with wood stoves, wood fireplaces and other appliances using wood, oil, gas, or coal. The use of stainless steel, selected for its resistance to high temperatures and corrosion, lends outstanding durability to the ASHT high-temperature chimney.

ASHT features 1" of high-temperature mineral fiber insulation. This insulation minimizes heat loss through the chimney walls and can withstand intense heat. The free-floating inner lining is attached only to the male coupler at the top, expanding and contracting freely with temperature fluctuations. The external casing carries the structural load. All ASHT pipe lengths, elbows, and other fittings feature fast and easy twist-lock assembly with just one-eighth turn. Even better, ASHT uses universal support hardware to speed up installation and to dramatically reduce the number of SKUs you need to keep in inventory.

What's Included

  • Pipe Length

Features

  • Available in 6″ to 8″ inside diameters
  • Available in 8″, 12″, 18″, 24″, 36″ and 48″ lengths
  • Alu-Zinc outer casing for 6", 7", 8" (For USA only)
  • Lengths twist-lock together with just an 1/8th rotation
  • ASHT line offers double-wall, 1-inch insulated chimneys.

Specifications

Brand Security Chimneys by DuraVent
Series
Secure Temp ASHT
Item Number
6GL8
Product Type
Pipe Length
Construction
Aluminum Zinc Coated Steel

Technical Dimensions

Size (Diameter) 6"
Length
8"
Weight per foot (lbs) 5.2

Documents & Files

Warranty

Industry’s BEST Limited Lifetime Warranty.
Unlike most others, our warranty is TRANSFERABLE to a future owner. Adds value for both the homeowner and prospective homeowner.

Duravent Group warrants our Global Residential Chimney & Venting products to be free from defects in material and workmanship at the time of manufacture. This warranty is only applicable to Products purchased through a listed/approved DGV brand customer. For Products installed after January 1, 2024, we will provide replacement product with a similar or like quality of available Duravent Global Product, free of charge (excluding any installation costs) for a period of ten (10) years from original installation. From the tenth (10th) anniversary of original installation through the fifteenth (15th) anniversary of original installation, we will provide replacement product at a cost of 75% off the published Retail Price in effect on the date we receive the claim (excluding any installation costs). At expiration of the fifteen (15) year period, we will provide replacement Product at a cost of 50% off the published Retail Price in effect on the date we receive the claim (excluding any installation costs). This warranty coverage is transferable from the original owner to the subsequent owners but only applies to products that remain at the site of original installation. The warranty period shall commence on the earlier of 24 months following the date of product shipment or the date of original installation.

Frequently Asked Questions

What are ASHT's Specifications?

ASHT is a double-wall, all-fuel chimney system for use with wood stoves, wood fireplaces and other appliances using wood, oil, gas, or coal. The use of stainless steel, selected for its resistance to high temperatures and corrosion, lends outstanding durability to the ASHT high-temperature chimney.

ASHT features 1" of high-temperature mineral fiber insulation. This insulation minimizes heat loss through the chimney walls and can withstand intense heat. The free-floating inner lining is attached only to the male coupler at the top, expanding and contracting freely with temperature fluctuations. The external casing carries the structural load. All ASHT pipe lengths, elbows, and other fittings feature fast and easy twist-lock assembly with just one-eighth turn. Even better, ASHT uses universal support hardware to speed up installation and to dramatically reduce the number of SKUs you need to keep in inventory.

 

Applications

ASHT is a double-wall, all-fuel chimney system for use with wood stoves, wood fireplaces and other appliances using wood, oil, gas, or coal.

 

Materials and Construction

.016” 441 stainless steel inner wall.
.016” 430 stainless steel outer wall.
1” high-temperature mineral fiber insulation. Laser welded seam.

 

Clearances

2” clearance to combustibles

 

Diameters

5", 6”, 7”, 8", 10"

 

Listings

ULC S629 - 6”, 7”, 8"
ULC S604, and UL 103HT

What is ASHT's Typical Installation?

Installation Key

1    Vertical Cap
2    Storm Collar
3    Adjustable Roof Flashing
4    Attic Radiation Shield
5    Firestop
6    Length
7    Finishing Support
8    Wall Support
9    Wall Radiation Shield
10    Elbow
11    Floor Support
12    Flue Extension
13    Tee
14    Wall Thimble
15    Tee Cap
16    Tee Support
17    Anchor Plate (optional)
18    Reduced Clearance Support

• Refer to our Typical Venting Installation drawings to select the appropriate component parts for your installation.

• Always refer to installation instructions for complete information.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 67769001156

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Stephanie Taylor
Natrona Heights, US
★★★★★ 1
Stand
Size: 16 Inch
Didn’t work for what I wanted them for
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 16, 2026
D
Verified Purchase
dwheel
Whiting, US
★★★★★ 3
There is no side to side stability
Size: 28 Inch
This product was easy to assemble and install and came with all parts. The product itself is very sturdy, looks good with a nice industrial aesthetic BUT - there is ZERO stability side to side (lengthwise) as the plates which attach to the wood are too small. I have them set closer than the picture so it is not an issue of being too far apart. If anyone else had this problem AND FIGURED OUT A FIX FOR IT - please share!!
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Reviewed in the United States on June 5, 2023
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Kindle Customer
Pawtucket, US
★★★★★ 5
Love those legs
Size: 28 Inch
People love the look of these legs .. they are arty and cool
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Reviewed in the United States on May 27, 2025
D
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Doogie Howser
Cuba, US
★★★★★ 5
Fairly stable. Good value for the price
Size: 16 Inch, Size: 16 Inch
Great set of stands. You have to tighten them pretty snugly to minimize wobble. Given they are metal they’ll have a little bit more give than solid wood. Even so, a tall desk I built with them remains stable and level.
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Reviewed in the United States on December 22, 2025
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D. Linger
Massapequa, US
★★★★★ 5
An incredibly thorough medicinal herb book
Format: Hardcover
I am a self taught herbalist for around 7 years. I love this series of books. I'd say it's not for beginners and novices. It's very thorough and gives formularies and uses for many different ailments. It's an excellent investment if you want to really go deep into herbal medicine. These, by far, are in my top 10 books, and this has 5 volumes. They take up half of my favorites. They go into the *hush hush* herbs as well which makes my heart skip a beat. But wait, theres an herb for that, Leonotis Nepetifolia. I think I'll recover, thanks to this book.
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Reviewed in the United States on November 17, 2021

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