Selkirk - 12" to 36" Pipe Length (Ultra-Temp / Galva-Temp Large)

SelkirkSKU: 16GT-12

Sale price$524.16
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Finish: Galvanized Steel
Diameter: 16-Inch
Length: 12-Inch
⛟ Estimated Delivery Date: Between and to all states excl. Alaska & Hawaii.


In the realm of ambitious projects demanding a larger chimney solution, Selkirk presents the Ultra-Temp / Galva-Temp Large Diameter Chimney. Crafted for both security and ease of installation, these chimneys, available in 16" to 24" diameters, are the epitome of reliability. Whether your project involves masonry chimneys or other applications, Selkirk UTL and GTL Large Diameters stand tall.


  • Reliable Security: Selkirk guarantees a secure and steadfast chimney solution, providing peace of mind for your projects.
  • Effortless Installation: Engineered for easy installation, saving you valuable time and effort on your projects.
  • Masonry Excellence: Specifically designed for masonry chimney applications, ensuring compatibility with a wide range of projects.
  • Durable Construction: Built with 430 stainless steel inner liners and galvanized outer walls for long-lasting durability.
  • Customizable Aesthetics: The galvanized outer jacket on Galva-Temp can be painted to match your project's aesthetic preferences.
  • Insulated Efficiency: 1" solid pack mineral wool insulation and 2" clearance to combustibles ensure efficient and safe operation.
  • Smart Choice Warranty: Enjoy the confidence of Selkirk's Smart Choice warranty covering all components.


  • Dual-Layer Construction: 430 stainless steel inner liner paired with a galvanized outer wall for optimal performance.
  • Mirror Finish: Ultra-Temp boasts a mirror finish for a sleek and modern appearance.
  • Insulation Excellence: 1" solid pack mineral wool insulation enhances safety and efficiency.
  • Versatile Options: Choose between Ultra-Temp with stainless steel outer walls or Galva-Temp with a galvanized outer jacket.
  • Anchor Plate Options: Standard anchor plates and those with built-in dampers provide flexibility for various applications.
  • All-Fuel Versatility: Suitable for all fuel applications, expanding your project possibilities.
  • Comprehensive Approvals: Listed to UL103 and UL 2561, ensuring compliance with safety standards on approved appliances.


  • Material: 430 Stainless Steel Inner Liner (Ultra-Temp), Galvanized Outer Wall (Galva-Temp)
  • Insulation: 1" Solid Pack Mineral Wool
  • Clearance: 2" to Combustibles
  • Options: Standard and Damper-equipped Anchor Plates

12-Inch Pipe Length:

Product Code
Part No Size (Diameter x Length)
16GT-12 216012G 16"x12" (Galvanized Steel)
16UT-12 216012U 16"x12" (Stainless Steel)
18GT-12 218012G 18"x12" (Galvanized Steel)
18UT-12 218012U 18"x12" (Stainless Steel)
20GT-12  220012G 20"x12" (Galvanized Steel)
20UT-12 220012U 20"x12" (Stainless Steel)
22GT-12 222012G 22"x12" (Galvanized Steel)
22UT-12 222012U 22"x12" (Stainless Steel)
24GT-12 224012G 24"x12" (Galvanized Steel)
24UT-12 224012U 24"x12" (Stainless Steel)

18-Inch Pipe Length:

Product Code
Part No Size (Diameter x Length)
16GT-18 216018G 16"x18" (Galvanized Steel)
16UT-18  216018U 16"x18" (Stainless Steel)
18GT-18 218018G 18"x18" (Galvanized Steel)
18UT-18 218018U 18"x18" (Stainless Steel)
20GT-18 220018G 20"x18" (Galvanized Steel)
20UT-18 220018U 20"x18" (Stainless Steel)
22GT-18 222018G 22"x18" (Galvanized Steel)
22UT-18 222018U 22"x18" (Stainless Steel)
24GT-18 224018G 24"x18" (Galvanized Steel)
24UT-18 224018U 24"x18" (Stainless Steel)


24-Inch Pipe Length:

Product Code
Part No Size (Diameter x Length)
16GT-24 216024G 16"x24" (Galvanized Steel)
16UT-24 216024U 16"x24" (Stainless Steel)
18GT-24 218024G 18"x24" (Galvanized Steel)
18UT-24 218024U 18"x24" (Stainless Steel)
20GT-24 220024G 20"x24" (Galvanized Steel)
20UT-24 220024U 20"x24" (Stainless Steel)
22GT-24 222024G 22"x24" (Galvanized Steel)
22UT-24 222024U 22"x24" (Stainless Steel)
24GT-24 224024G 24"x24" (Galvanized Steel)
24UT-24 224024U 24"x24" (Stainless Steel)

36-Inch Pipe Length:

Product Code
Part No Size (Diameter x Length)
16GT-36 216036G 16"x36" (Galvanized Steel)
16UT-36 216036U 16"x36" (Stainless Steel)
18GT-36 218036G 18"x36" (Galvanized Steel)
18UT-36 218036U 18"x36" (Stainless Steel)
20GT-36 220036G 20"x36" (Galvanized Steel)
20UT-36 220036U 20"x36" (Stainless Steel)
22GT-36 222036G 22"x36" (Galvanized Steel)
22UT-36 222036U 22"x36" (Stainless Steel)
24GT-36 224036G 24"x36" (Galvanized Steel)
24UT-36 224036U 24"x36" (Stainless Steel)

Warranty: Lifetime Limited Warranty

Refer to the Smart Choice Warranty for full warranty details.


About The Manufacturer:


Selkirk products set themselves apart from the competition with their proven quality, safety, ease of installation, and lasting performance.  Selkirk is one of the most trusted brands in the industry because we stand behind everything we do.  From assisting with product selection, providing education and installation assistance, to our industry-leading warranties, we ensure your success every step of the way.

      Order Confirmation:

      Upon placing your order, you will promptly receive an email confirmation. Subsequently, we will conduct a thorough inventory check to ensure all items are in stock and available for immediate shipment. If your order aligns with the advertised delivery timeframe, we will promptly process it for shipment to our warehouse. In cases where the expected delivery time extends beyond the advertised timeframe, we will reach out to you via email and/or phone for confirmation.

      Order Shipment:

      Within one business day of your item being shipped, you will receive an email confirmation containing a tracking number. If you do not receive tracking information within six business days of placing your order, please don't hesitate to get in touch with us for assistance.

      Estimated Time of Arrival:

      Our typical delivery timeframe ranges from 2 to 10 business days. Custom-made products generally require 3 to 5 weeks for delivery. If the expected delivery date for your order would fall outside of the advertised 2-10 business day time frame, our customer service team will contact you to ensure your agreement with the revised timeline.

      Covered Areas:

      Please note that all estimated delivery dates and shipping costs advertised on our website apply exclusively to the Contiguous United States. For inquiries regarding shipping to Hawaii or Alaska, kindly reach out to our customer service team. While we do not offer direct shipping to Canada, we are more than willing to ship your order to the freight carrier of your choice.


      It is very important that you inspect the packaging of your items when they arrive and check if you received all boxes listed on the delivery receipt. If you notice any damage or shortage of packages, you must make note of it on the bill of lading, take pictures, and refuse delivery. Your note should say "refused due to damage". You must also take photos of all sides of the box and send them to us within 2 days. If there are no damages visible before opening the box, you must note "subject to further inspection may contain concealed damage". If you notice any damage after receiving the delivery, do not throw the box away, and contact us with the photos. After we receive information from you about the refused delivery or concealed damage, we immediately initiate a claim with the shipping company or with the manufacturer. After the claim is fully processed, we ship all replacements at absolutely no cost to you.

      Cancellations & Refunds:

      We offer free order cancellations before the shipping label or Bill of Lading is generated, or prior to the commencement of production for custom orders. Please note that custom-made items are not eligible for refunds once production has begun. To be eligible for a return, the item must be unused and in its original condition, with all packaging intact and in perfect condition. Orders delivered outside of the United States are not eligible for refunds. If your order arrives damaged, please refer to the "Damages" section. Our refund policy extends for 30 days. If 30 days have elapsed since your purchase, regrettably, we cannot process a refund. Prior to returning an item, please contact us to discuss shipping details. All refunds will be credited to the original credit card or PayPal account used for the purchase, within two days of receiving the returned items at our warehouse.

      Please contact for any questions regarding shipping time.

      At Belleflame, we're committed to providing our customers with the best prices on the market. That's why we offer a 110% best price guarantee. If you find a better deal on the same product somewhere else, just let us know and we'll beat it by an additional 10%.

      We believe that shopping should be easy, convenient, and most importantly, affordable. That's why we work hard to bring you the lowest prices on the products you love. But if you do happen to find a better deal elsewhere, we'll go the extra mile to make sure you get the best deal possible.

      Here's how it works:

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      It's that simple! Our 110% best price guarantee ensures that you'll always get the best deal possible when you shop with us. So, why wait? Start shopping now and experience the difference of shopping with Belleflame.

      At Belleflame, we believe that shopping should be simple, stress-free, and most importantly, enjoyable. That's why we work hard to bring you the best products, prices, and customer service in the industry.

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