8'' DuraTech Multi-Story Kit - DT850-KIT

Item Code: 5SP-DT850-KIT

Availability: In Stock - See individual options for shipping time.

As low as: $634.49

Price as configured: $0.00


Product Details

The 8'' DuraTech Multi-Story Kit contains all the components needed to install a 8" chimney (excluding black stove pipe and DuraTech chimney sections) straight up through a normal flat ceiling and multiple floors.

Materials and Construction

DuraTech features light weight insulation, twist-lock fittings, support boxes with factory installed starter sections, elbows with 360° swivel base, select black finish pipe lengths, and five foot length pipe sections.

  • 8'' diameter pipe features inner wall of .020'' 430 stainless steel.
  • Outer wall options of .016'' 430 stainless steel or .021'' galvalume steel.
  • .016'' 430 stainless steel inner liner.
  • A Thermal Tech (ceramic refractory) blanket insulation is encased between walls.
  • Stainless steel end rings seal the pipe.
This kit includes the following: (from the cap down)


8" DuraTech Chimney Cap is required where the chimney pipe terminates above the roof line. This Chimney Cap has removable screws to allow for easier cleaning of the chimney and spark arrestor screen. Includes spark arrestor screen.

8" DuraTech Storm Collar this aluminum storm collar is required for use on any through-the-roof installations using a roof flashing.

8" DuraTech Roof Flashing provides leak proof roof penetration. The purpose of the roof flashing is to weatherproof the roof where the chimney penetrates the roof. The flashing gets tucked under the shingles and the shingles are cut around the flashing if needed. The flashing is sealed to the roof with silicone to provide that needed seal to prevent water from getting under the flashing and getting into the attic or house, then a storm collar is placed over the flashing and sealed to the chimney pipe with a high temp silicone to prevent water from running down the chimney.

8" DuraTech Attic Insulation Shield is required for installations that pass through an attic to prevent insulation and debris from accumulating near the chimney. The Attic Insulation Shield fits over the Firestop Radiation Shield or Support box and consists of two-parts - a collar and a base.

8" DuraTech Firestop Radiation Shield is installed where a chimney passes through a floor or ceiling without the use of a support box. It is used to center the pipe and assure the proper clearance required for the installation. The Firestop Radiation Shield adjusts to cover wide framing and fits on the underside of the ceiling.

8" DuraTech Round Ceiling Support is used when passing through a flat ceiling. It includes a built-in, twist-lock starter section for DuraTech Chimney. Use a Snap-Lock Adaptor, or a DuraBlack Slip Connector to transition to single-wall stovepipe or use a close clearance adaptor to transition to DVL Double-Wall Stovepipe. The Round Ceiling Support requires a 14 1/2" x 14 1/2" framed opening. Included is a 1 1/2" wide trim collar. This round ceiling support will support up to 60' of DuraTech Chimney.

8" Stove Pipe Adapter is required to connect the stove pipe to the chimney pipe and there are several options to choose from depending on your requirements.

  •  height=Slip Connector - Item Number 1871 - Use to connect DuraBlack single wall stove pipe to the ceiling support box. Use the slip connector if you do not have any other adjustable stove pipe length between your stove and support box. This adapter will provide a 3" to 13" slip fitting without having to cut pipe for a perfect fit. Only connects to rigid DuraBlack stove pipe, and cannot be used with telescoping pipe lengths.
  •  /> <strong>DuraBlack Chimney Adapter - 8878 - </strong>This adapter is recommended to connect DuraBlack single-wall stove pipe to DuraPlus or DuraTech chimney pipe if you do not require adjustability in your stove pipe height. You can also use this adapter to connect DVL double-wall stove pipe to DuraPlus or DuraTech chimney.</li>
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Additional Information

  • 7'' diameter pipe features inner wall of .020'' 430 stainless steel.
  • Outer wall options of .016'' 430 stainless steel or .021'' galvalume steel.
  • .016'' 430 stainless steel inner liner.
  • A Thermal Tech (ceramic refractory) blanket insulation is encased between walls.
  • Stainless steel end rings seal the pipe.
Additional Information

With a Thermal Tech blanket insulation encased between duel walls, DuraTech offers superior safety and performance. It keeps the outer wall cool while ensuring high flue gas temperatures for optimum draft performance. The inner wall is 25% thicker than competitive chimneys, for an extra margin of safety. Designed for normal, continuous operation at 1000 Degree F flue gas temperatures, DuraTech is subjected to rigorous and stringent HT requirements of the UL standard, including one hour at 1400 Degree F, plus three ten minute chimney fire tests at 2100 Degree F.

  Installation Instructions

Brands DuraTech, DuraVent, Simpson
Model DT850-KIT
Made In USA
Product Type Ceiling Support Boxes, Chimney Kits
Diameter 6 Inch
Wall Construction Double Wall
Shipping Weight (lbs) 0.0000
Actual Weight (lbs) 0
International Shipping Yes


Manufacturer's Limited Lifetime Warranty - (only when installed by a Qualified Professional Installer)

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