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Selkirk 18"/24"/36" Pipe Length (Round Large - Type B Gas Vent)

Selkirk 18"/24"/36" Pipe Length (Round Large - Type B Gas Vent)

Regular price $202.66
Regular price Sale price $202.66
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Selkirk 10" to 30" Diameter, 18"/24"/36" Pipe Length

Easy to assemble and can be combined to obtain the required installation height. To calculate installed height, deduct 1" for each joint.

Round Large - Type B Gas Vent

Model R Double Wall Type B Gas Vent is designed for quick and easy installation. It's durability makes it ideal for multi-family and commercial industrial applications. Featuring an aluminum inner liner designed to assure quick vent action and minimal condensation. Lightweight and easy to assemble with snap lock ends.

10" to 30" Diameters:

  • Aluminum inner liner
  • Galvanized outer wall
  • Double-wall design with 1/2" uniform airspace
  • Clearance to combustibles is 1" for diameters 10"-30"
  • Featuring snap lock joints for easy assembly
  • Smart Choice warranty on all components


  • Listed to UL 441 in the U.S.A.

18-Inch Pipe Length:

Product Code
Part No Size (Diameter x Length)
2003615 10R18-S 10"x18"
2003634 12R18-S 12"x18"
2003672 14R18-S 14"x18"
2003690 16R18-S 16"x18"
2003708 18R18-S 18"x18"
2003726 20R18-S 20"x18"
2003744 22R18-S 22"x18"
2003762 24R18-S 24"x18"
2003779 26R18-S 26"x18"
2003795 28R18-S 28"x18"
2003810 30R18-S 30"x18"

24-Inch Pipe Length:

Product Code
Part No Size (Diameter x Length)
2003616 10R24-S
2003635 12R24-S 12"x24"
2003673 14R24-S 14"x24"
2003691 16R24-S 16"x24"
2003709 18R24-S 18"x24"
2003727 20R24-S 20"x24"
2003745 22R24-S 22"x24"
2003763 24R24-S 24"x24"
2003780 26R24-S 26"x24"
2003796 28R24-S 28"x24"
2003811 30R24-S 30"x24"

36-Inch Pipe Length:

Product Code
Part No Size (Diameter x Length)
2003617 10R3-S 10"x36"
2003636 12R3-S 12"x36"
2003674 14R3-S 14"x36"
2003692 16R3-S 16"x36"
2003710 18R3-S 18"x36"
2003728 20R3-S 20"x36"
2003746 22R3-S 22"x36"
2003764 24R3-S 24"x36"
2003781 26R3-S 26"x36"
2003797 28R3-S 28"x36"
2003812 30R3-S 30"x36"

CA Residents: See Prop 65 WARNING.


Lifetime Limited Warranty

Refer to the Smart Choice Warranty for full warranty details.

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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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