Smokeless Steel Fire Pit Insert | 3" Top Flange
This round smokeless fire pit liner is forged from premium steels made to contain a fire and protect pavers from direct heat. The perforations around the ring help reduce smoke released from the pit by providing more oxygen to the fire, allowing the smoke to burn off more efficiently. Perfect for the DIY fire pit paver project, this insert is easy to assemble and ready to place in your outdoor fire pit. The ring's 3" top flange will rest nicely on top of your existing fire pit enclosure. Handcrafted in the U.S.A., the smokeless fire pit insert is solidly constructed and built to withstand outdoor elements and the variations of wood-burning fires.
Choose between corten steel and mild steel. Corten’s protective patina helps it outlast mild steel, making it the more durable long-term option.
Specifications:
- Material: 16g Corten Steel or Mild Steel.
- Rust & Patina: Both mild and Corten steel will rust when exposed to moisture. Corten is designed to develop a natural rust-colored patina that protects the steel and deepens over time. Rust runoff may stain light-colored pavers, concrete, or stone, especially early on, so protect or rinse nearby surfaces as needed.
- Includes: Larger sizes are 3 pieces with 6 bolts; smaller sizes are 2 pieces with 4 bolts.
- Ring Insert sizes: 24"-60" round with a 3" top flange.
- Sizing: Sizes refer to the insert's inside diameter, not your fire pit opening. Your opening should be larger than the insert to leave an air gap around it (don’t size it line-to-line), with extra room for the bolt hardware. It must also be smaller than the outer edge of the 3" flange so the flange can rest on top. Not sure? Contact us before ordering at (385) 743-9273.
- Venting: For the best smokeless performance, your fire pit enclosure needs cross-air vents at the base.
- Height: 12" or 18" Deep/Tall.
Smokeless Design:
- This insert allows the airflow to be heated, which provides more oxygen to the fire, helping burn off the smoke.

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