DuraTech Factory-Built Chimney System

DuraTech sets the standard in quality, design and performance for chimney systems. 

Using ThermalTech blanket insulation, DuraTech keeps the outer wall of the chimney cool while ensuring high flue gas temperatures for optimum draft performance.  This also eliminates hot spots common with loose-fill type insulations.  No shifting, settling or dangerous voids. 

In the event of a creosote fire, this compressible blanket insulation permits the chimney liner to expand outward.  This free-floating inner liner design also permits the liner to expand lengthwise eliminating buckling and loss of structural integrity associated with some solid-pack type chimneys. 

DuraTech's twist-lock connections require no locking bands or other mechanical fasteners.  DuraTech is available in inner diameters of 5"-8", lengths of 6", 12", 18", 24", 36" and 48" in stainless or galvanized outer wall.  Diameters of 10", 12" and 14" come in 12", 24" and 36" lengths with galvalume outer walls.  All outer diameters are 2" larger than the inner diameters. 

The outer wall of DuraTech Chimney is .016" 430-alloy stainless steel and the inner liner is . 020" 430-alloy stainless steel and the inner liner is .020" 430-alloy stainless steel.  The galvalume outer wall lengths also have a 430-alloy stainless inner liner, .016" thick.  The 10" and 12" lengths have the same features of the other galvalume lengths. 

When double wall black stovepipe is needed, use DuraVent DVL.  DuraTech Chimney is Tested and Listed to the UL 103HT Standard for use with wood, oil, coal, and gas appliances in 5"-8" diameters; and the UL 103 Standard in 10", 12" and 14" diameters.  DuraTech Chimney carries a lifetime warranty. 

DuraTech is half the weight of other chimney - making it easier to install and less expensive to ship. 

Once you get a piece of DuraTech Chimney in your hands, you'll know immediately this is a quality user-friendly product.  Made in the USA.  DuraTech is proudly made in Vacaville, CA.  All of these great features and benefits qualify DuraTech as the best class-A chimney on the market.  Great Warranty, engineering excellence, super price - the smart choice. 

If your project calls for economy, consider galvalume DuraTech in the inside spaces.  It's more resistant to rust than galvanized metal, but not as resistant as stainless.

• DURATECH CHIMNEY 5" - 8" DIAMETER INSTALLATION INSTRUCTIONS
• DURATECH 10" - 16" CHIMNEY INSTALLATION AND OPERATION INSTRUCTIONS

*We will contact you after you order with the exact shipping cost to ship to your area.  Click here for shipping disclaimer.

DuraTech 5" to 8" Diameter Lengths
(see 10", 12" and 14" below). Components are listed further down the page.

DuraTech Large Diameter Lengths
Components that are available are listed further down the page.

Scroll down to view our Chimney Adaptors, Elbows, Tees, Round Ceiling Support, Short Cathedral Ceiling Support & Cathedral Ceiling Support, Roof Supports & Anchor Plates, Exterior Supports, Flashings, Shields, Rain Caps, Wall Thimbles a Snow Splitter and Finishing Collars also needed to complete some applications.

Chimney Adaptors

To connect Dura-Vent DVL double-wall black stovepipe to a DuraTech support, use a Close Clearance Adaptor 430-alloy stainless inner wall, aluminized steel outer wall
•Reduces clearances from 18" to 6" for walls •Reduces clearances from 18" to 8" for ceilings

To connect single-wall stovepipe use either a Snap-Lock Adaptor With trim or a Slip Connector.
•24 Gauge Spot-welded lock seams •18" clearance to combustibles

DuraTech Chimney Adaptor With Trim, For DVL or Single/Double Wall Stovepipe

or a DuraBlack 14" Slip Connect (on right in picture).  18" clearance to combustibles

Be sure to also use the Finishing Collar for Wall Thimble and Ceiling Support installations.

Elbows

The Elbow Kits are available in Galvalume or Stainless Steel. Each Kit contains 2 Elbows and 1 Strap. Additional Straps are available as individual item listed below.

Tees and Tee Support

The Elbow Kits are available in Galvalume or Stainless Steel. Each Kit contains aStandard Tee and a Cover.

The Tee Supports are available in Galvalume or Stainless Steel. Supports up to 50' of 5" to 8" chimney without wall straps (70' with wall straps) and adjusts 2" to 6" from the wall.

Wall Thimble

The Wall Thimble adjusts from a minimum of 4: to a maximum of 9" deep.  Use this piece for your through-the-wall installations in conjunction with a Tee and Tee Support.  The Wall Thimble must be installed with an appropriate length of DuraTech Chimney pipe passing through it. 

A Finishing Collar and a Chimney Adaptor will be needed to complete the installation. 

Finishing Collar

This Finishing Collar must be used when doing through-the-wall installations or when suspending the chimney Pipe from the Roof Support.  The collar twist-locks into the end of the chimney and allows for the connection from DuraTech Chimney to the Chimney Adaptors shown at top of this webpage.

Slip Connector And Hanger - in chimney restoration, use the transition anchor plate to transition from DuraLiner to DuraTech, DuraPlus, or DuraPlus HTC chimney.

Transition Plate - Use with slip connector on lined, masonry chimney restoration to connect DuraLiner to DuraTech and DuraPlus.

NOTE: Slip Connector and Hanger are needed also.

Round Ceiling Support

This Round Ceiling Support has a built-in, twist-lock connector that accepts DuraTech.  It will support up to 60' of DuraTech Chimney.

Note: The Round Ceiling support Trim Collar is sold separately.

Short Square Ceiling Support

This square Short Ceiling Support box with 2" trim collar is 11" tall. 

Use with 6" and 8" DuraTech Chimney for both flat and slightly sloped cathedral ceilings.  Includes a built-in twist-lock collar.  Supports up to 60' of chimney.

Cathedral Ceiling Support

This Cathedral Ceiling Support has a built-in twist-lock collar that accepts DuraTech.  It's 24" high and supports up to 60' of chimney.  Suitable for flat and cathedral ceilings.  A 2" wide trim collar is included.
A 36" is available for 6" diameter only. 

A Snap-Lock Adaptor or DuraBlack Slip Connector should be used for single-wall black pipe or a Close Clearance Adaptor when using Dura-Vent DVL Double-Wall Black pipe.

Ceiling Support

This square Ceiling SupportBox is used to support chimney pipe and provides a positive connection between support box and chimney with a built-in twist-lock. It is designed for installation in flat ceilings only. Supports up to 60' of DuraTech Chimney. Use adapter to attach DVL or DuraBlack to the support box. 3 A 2 wide trim collar is included. It is not painted, but can be painted with high temperature paint. 

• Box Thickness: 4"
• Adapter Thickness: 3"
• Inner Diameter: 6-1/4"
• Outer Diameter: 9"
• Dimensions: 12" x 12"

Roof Support and Anchor Plate

Roof Support (top in picture) supports up to 45' of pipe with 20' allowed below the roofline. 

All sold separately including Roof Support Trim Collar (in middle picture). 

Anchor Plate (shown in bottom picture) attaches and supports DuraTech on a masonry or approved zero clearance fireplace.

10", 12" and 14" are all listed above with the the larger diameter pipe.

Supports

The Extended Roof Bracket stablizes the pipe above the roof. 

The Tee Support (shown in middle in picture) supports up to 60' of DuraTech chimney and is adjustable 2" to 6" from the wall.

The Wall Strap adjusts 2" to 6" from the wall providing stability.

• Stabilizes chimney while ensuring a minimum 2" clearance to combustibles.
• Can adjust out to 6" clearance if needed.
• One part covers 2 diameters.

Flashings

Not alll DuraTech Flashings are made of aluminum.  Although more expensive, aluminum doesn't rust and can handle the elements better than galvanized flashings.  Select the flashing based on the pitch of the roof. For example, a 6/12 roof pitch has a vertical rise of 6" over a horizontal distance of 12" 

On our left (in above picture) is our 7/12 to 12/12 pitch Flashing.  We also have a 0/12 to 6/12 pitch flashing, not shown.

At right (in above picture) is our Flashing for Flat Roof installations.  Featured with this flashing is a Storm Collar which you will need to order with all of our flashings.

10", 12" and 14" are all listed right below.

Shields

Install the Firestop Radiation Shield, shown on bottom left in picture, where a chimney passes thru a floor or ceiling without a ceiling support. 

Use the Attic Insulation Shield, top right in the picture, for installations that pass through an attic.  It prevents insulation and debris from accumulating near the chimney.  It consists of two parts - a collar and a base.  Both are galvanized.

Now Available Transition Plate, no picture, for 6 and 8 inch. NEW

Rain Cap

This Rain Cap is stainless steel. Removable screws allow for cleaning chimney.
• Spark arrestor (not pictured) sold separately .

Snow Splitter

This Snow Splitter is used to divert snow around chimney, vent, and roof flashing. It is constructed of paintable galvanized material.

*We will contact you after you order with the exact shipping cost to ship to your area.  Click here for shipping disclaimer.