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11' Tall Square Ceiling Support Box for 6' Diameter 304 Stainless Steel All Fuel Class-A Double Wall Insulated Chimney Pipe

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$125.16

$ 55 .99 $55.99

In Stock
  • Compatible with AllFuel HST Class-A double wall chimney pipe. Can not be connected to other brands of class-A chimney.
  • Support box and trim is made of heavy duty galvanized steel with stainless steel components painted black
  • Use the 11" square ceiling support box for both flat and cathedral ceiling installations
  • A stove pipe adaptor (sold separately) is required to connect to stove pipe
  • Certified to UL103HT and perfect for wood stoves, fireplaces, fireboxes, furnaces, boilers, water heaters, outdoor wood furnaces, or other residential heating appliances fueled by wood, gas, coal, or oil



Product Description

AllFuel HST is a Class-A chimney listed to UL 103HT for all fuels including wood, gas, coal and oil

AllFuel HST is made for use with wood stoves, fireplaces, fireboxes, furnaces, boilers, water heaters, outdoor wood furnaces, pizza ovens and other residential heating appliances requiring high temperature chimney and fueled by wood, gas, coal or oil.

AllFuel HST is produced in our 800,000 sq ft manufacturing facility

  • We have been producing Class-A chimney pipe and stove pipe for more than 27 years.
  • Our products are sold all over the world including the USA, Canada, China, Germany, Japan, Korea, Italy, Holland, Denmark, and South Africa.
  • AllFuel HST is sold factory direct to eliminate the middleman markup and reduce shipping and handling costs.
  • Strict quality control checks are conducted before every shipment.
  • AllFuel HST is a high temperature Class-A chimney pipe.

We eliminate waste and maximize quality with a combination of high tech machinery and hand crafted components

Precision Cutting Technology to minimize waste and maximize use of raw materials

Precision Cutting Technology

makes the perfect cuts every time to ensure we maximize use of raw materials, minimize waste.

Hand crafted components provide a high level of quality control and detail

Hand Crafted Components

We hand craft many of our components to exacting standards.

Cutting edge laser welding technology provides perfect almost smooth seams on every chimney pipe

Cutting Edge Laser Welding Technology

We use the latest laser welding technology to produce a perfect, almost smooth seam on every length of chimney pipe and component.

AllFuel HST Chimney Pipe Lengths & Exterior Components Feature

304 stainless steel twist lock double wall insulated chimney pipe

Twist Lock Connection

Our twist lock connection makes it easy to assemble your chimney pipe and components. Simply place two sections together and twist until secure. Finish the connection with our included locking band for a water tight connection that won't come loose in wind or snow.

ceramic fiber blanket insulation between stainless steel walls

Ceramic Fiber Blanket Insulation

Sandwiched between our inner and outer wall is a 1.18" thick ceramic fiber blanket insulation. This compressed blanket of insulation ensures there will be no hot spots in your chimney caused by settling of the insulation like you get with loose filled insulated chimney pipe.

0.019 minimum thickness of stainless steel inner and outer chimney pipe walls

.019" Thick 304 Stainless Steel Inner and Outer Walls

Our inner and outer walls are made of 304 stainless steel that measures a minimum of .019" thick.

We Offer Pre-Configured Chimney Kits To Make Planning Your Installation Simple - Just Add Lengths Of Pipe

Cathedral Ceiling chimney pipe kit

Cathedral Ceiling Chimney Kit

This kit includes every component you need to install double wall Class-A chimney pipe through a cathedral ceiling. Simply add lengths of chimney pipe to complete the kit.

Through The Wall Chimney Pipe Kit

Through The Wall Chimney Kit

This kit includes every component you need to install double wall Class-A chimney pipe through an exterior wall. Simply add lengths of chimney pipe to complete the kit.

Multi Story Chimney Kit

Multi Story Chimney Kit with Metal Roof Flashing

This kit includes every component you need to install double wall Class-A chimney pipe through a 2 story home (for buildings with more than 2 stories simply add the needed Firestop Radiation Shields). Simply add lengths of chimney pipe to complete the kit.

Through The Attic Chimney Pipe Kit

Through The Attic Chimney Kit

This kit includes every component you need to install double wall Class-A chimney pipe through the attic of a single story home. Simply add lengths of chimney pipe to complete the kit.


Mikayla Mishra
Reviewed in the United States on November 2, 2024
This is absolutely terrible piece of expensive part. The inner pipe is not 6’’ but like 5.5. Becoming impossible to find adapter. All I can say don’t buy this product and it will save your time and money.
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