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Metal-Fab All-Fuel Temp Guard 8" x 18" Galvanized Chimney Pipe

Metal-Fab All-Fuel Temp Guard 8" x 18" Galvanized Chimney Pipe

Regular price $399.99
Regular price Sale price $399.99
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Temp/Guard® All-fuel products, diameters 6"- 8" are tested and listed to UL 103HT for continuous operating temperatures up to 1000°F and 2100°F intermittent.  Temp/Guard features a twist-lock connection that eliminates the need for sheet metal screws and aids in proper joint alignment.  Temp/Guard utilizes a ceramic fiber blanket insulation that reduces “hot spots” and prevents insulation from settling during transportation and installation, increasing product safety and reliability.  Our factory-built chimneys have the smallest clearance to combustibles of 1.5" in the industry, reducing the chimney system footprint and saving on cost and time.

What's Included

  • 8" x 18" Galvanized Chimney Pipe


  • Available in 6", 12", 18", 24", 36" sizes.
  • The stainless steel inner flue is wrapped with ceramic fiber insulation making it up to 40% lighter than some competitors and much easier to install!
  • Corrosion-resistant stainless steel spacer rings have ports to confirm there are no gaps in the insulation, reducing the risk of hot spots
  • Temp/Guard®All-Fuel Chimneys Double-wall, factory-built type for use with listed wood, coal, oil or gas-fired appliances.
  • Smooth operating Twist-Lock connection enables faster installation without tools.
  • Laser welded outer casing and inner flue on 6", 7", & 8" diameters ensures a stronger seal and sleeker design 
  • Sizes 6", 7", 8'; 10", and 12" are listed by Underwriters Laboratories Inc. to UL Standard 103HT (2100° intermittent; 1000° continuous).
  • Sizes 6", 7", and 8" are listed by Underwriters Laboratories Inc. to ULC-S629 for use in Canada (see separate installation instructions; literature number L2686).
  • The Stainless Steel flue conduit is wrapped with ceramic insulating material.
  • The outer casing of stainless or galvanized provides strength, durability, and corrosion resistance. Twist lock enables fast, easy installation, without tools. Note: Always use TGS for exterior pipes in oil applications.
  • Note: Twist Lock Pipe (6"-12") overlaps 1 1/2" when joined together. Quick Connect Lock (14"-18") overlaps 1 1/2" when joined together with sheet metal screws. Therefore, the assembled length of all sizes is 1 1/2" less than the listed length.
  •  For oil or coal-burning appliances, use only pipe with S.S. casing and S.S. or Aluminum accessory components outside the envelope of the building
  •  Temp/Guard is intended for use in residential and building heating appliances that operate at continuous temperatures below 1000°F.



Factory-built double wall chimney for use with listed wood, coal, oil, or gas-fired appliances.

Flue Material 0.015, 430 Stainless Steel
Casing Material 0.018, Galvanized
Listings/Standards NFPA 211, UL 103HT
Inner Diameter 8"
Outer Diameter 11"
Height/Length 18"
Clearances 1-1/2" Minimum clearance to combustibles

Technical Drawings & Dimensions


The Metal-Fab TEMP GUARD factory-built chimneys, when installed according to the manufacturer's instructions, as prescribed by Underwriters Laboratories Standard 103HT, and when properly and regularly cleaned and maintained as set forth below, are warranted by Metal-Fab Inc. under normal residential use against defects in
material or workmanship of the product for parts only for as long as the original consumer owns the chimney system. During the first ten years of the warranty, Metal-Fab will provide replacement chimney lengths at no charge. During the balance of the warranty, Metal-Fab will provide replacement chimney lengths at 50% of the current retail price in effect at the time of the warranty claim. The defective part(s) must be returned with all transportation charges prepaid by the owner to the Customer Service Department, Metal-Fab Inc., 3025 May Avenue, Wichita, Kansas 67213. Metal-Fab Inc. will in turn ship the repaired or replacement part to the owner, and freight collect, with the owner to be responsible for all freight charges. This warranty does not cover any labor or other service charges incurred by the owner, or any parts not manufactured by Metal-Fab Inc.

Click to see Full Warranty Details

It is the OWNER'S RESPONSIBILITY to establish:

  1. the date of the original installation of the product;
  2. the name of the original purchaser;
  3. the name of the installer;
  4. that the product was installed according to manufacturer's instructions; and
  5. that the product was properly cleaned and serviced once each year by a licensed chimney sweep.

Disclaimers and Exclusions

The following shall be applicable to those products of Metal-Fab Inc. described above:

  1. The warranty described hereinabove shall be IN LIEU of any other warranty, express or implied. Except as set out hereinabove, there are NO other warranties and any statutory or implied warranty of MERCHANTABILITY or fitness for a particular purpose is EXCLUDED from this transaction and shall not apply.
  2. The sole and exclusive remedy against Metal-Fab Inc. shall be for the repair or replacement of defective parts as provided hereinabove. NO OTHER REMEDY (including, but not limited to, incidental or consequential damages for lost profits, lost sales, injury to person or property, or any other incidental or consequential loss) shall be available. The sole purpose of the stipulated exclusive remedy provided for herein, shall be the repair and replacement of defective parts in the manner provided hereinabove. This exclusive remedy shall not be deemed to have failed of its essential purpose so long as Metal-Fab Inc. is willing and able to repair or replace defective parts in the prescribed manner.
  3. The owner shall not be required to deliver a defective part to Metal-Fab Inc. if:
    1. The part was destroyed as a result of its defect or any defect in any part covered in this warranty; and
    2. Metal-Fab Inc. is reasonably satisfied that the part was defective at the time of sale.
    If both of these conditions are met to Metal-Fab Inc.'s satisfaction, it will replace the part in the same manner provided herein as if the purchaser had delivered it to Metal-Fab Inc.
  4. The owner acknowledges that no oral statements purporting to be warranties, representations, or guarantees of any kind about any product of Metal-Fab Inc. have been made to owner by Metal-Fab Inc. by the original purchaser if different from the owner, or by its dealer which in any way expands, alters or modifies the terms of the warranty set out herein. Any such statements do not constitute warranties, shall not be relied on by the owner, and are not part of the contract of sale. This writing constitutes a complete and exclusive statement of the terms of any warranty, express or implied, of Metal-Fab Inc.
  5. There is NO WARRANTY for any defective part of a Metal-Fab product which has been removed from its original installation site or which, in the judgment of Metal-Fab Inc., arises from misuse, mishandling, neglect, chimney fire, flood, lightning, corrosive atmosphere, improper installation of the product, improper servicing of the product, unauthorized modification of the product, improper fuel supply to the product, or the failure of the installer to properly install or service the product as is set out in the installation instructions.

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  • Researched and ordered my fireplace from US FIreplace Store. Pricing was a fair value however, the customer service was EXCELLENT! I had an issue with the direct vent venting. I called US Fireplace and the correct items were sent out the next day AND Janessa stayed on top of my return authorization and sent me the permissions and documents I needed to return the incorrect item and no cost to me, including return shipping. Overall, I am a very satisfied customer and my fireplace looks and operates flawlessly. I am glad that I selected US FIreplace to source my direct vent fireplace. Thank you for the great service.


    Monteagle, TN

  • I had placed an order, through Lowe's Home Improvement, for an Electric Firebox: Revillusion RBF42. Ordered 1st part of January. Was told I would have it in 3 weeks. When checking to see is it came in, was told it was delayed to 3/15. Was then told is was delayed until 4/25. Waited until 4/27 to check on it. Was then told it was now delayed until August. This firebox was going in a new Sun Room addition. I could not get my final inspection until the Firebox was installed. I went on line and googled for this same product. US Fireplace Store web site was given to me. This was on a Saturday. I call and reached a very nice man. Explain what I was look for. He checked and told me they had 30 of them in stock. I almost fell out of my chair. I clarified with him the product I was wanting. I ask how soon could I get it. He told me it would ship today. Again, was amazed. It arrived on the following Monday. What a pleasure and a relief working with US Fireplace Store and their employees. Exceed my expectations.

    Thomas W.

    Fort Mill, SC

  • Great prices, quick delivery and fast hassle free services on the issue I encountered. I had purchased an electric fireplace unit that would not fit into the existing fireplace space. With one email I was able to get the wrong fireplace refunded and picked up at my home at no extra cost and the new one I purchased and delivered free of charge. Great company.

    John P.

    Denvers, MA

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