Key takeaways
- Buying a smokeless fire pit insert solves a very specific problem: you already have a fire ring—stone, brick, or an old steel bowl—and you want the near-zero smoke output that modern secondary-combustion engineering delivers, without rebuilding the entire pit from…
What's inside
Buying a smokeless fire pit insert solves a very specific problem: you already have a fire ring—stone, brick, or an old steel bowl—and you want the near-zero smoke output that modern secondary-combustion engineering delivers, without rebuilding the entire pit from scratch. The best inserts use precisely placed air vents to feed oxygen into the flame zone at the right speed, creating a hotter, more complete burn that leaves far less visible smoke than a standard open ring. The worst ones are essentially decorative metal rims with no airflow strategy, sold on the word “smokeless” in the title alone.
Across the eight products in this roundup, the meaningful differences come down to steel gauge, vent geometry, rust protection, and whether the dimensions actually match your existing ring. A $59 insert that fits a 36-inch fire pit and includes a powder-coated finish can outperform a $150 unit with no ventilation if the budget unit is properly engineered. That is the core of this comparison.
As an Amazon Associate we earn from qualifying purchases at no extra cost to you. Product prices and availability are accurate as of the date shown and are subject to change.
Quick Picks
| Product | Best for | Price |
|---|---|---|
| Iron Forge Tools 36″ Round Steel | Mid-range DIY with strong airflow design | $104.99 |
| SoulMate 40″/36″ | Budget buyers fitting an existing 36″ inner ring | $58.99 |
| SoulMate 46″/42″ | Large patio or in-ground conversions | $94.99 |
| Iron Forge Tools 36″ Round | Premium build quality in a standard size | $149.98 |
| Zzuvjoy 36″ | Value-focused buyers wanting vents and anti-rust coating | $59.99 |
| BigXwell 36″ | Simple above-ground ring upgrade | $89.99 |
| BPS 36″/30″ | Buyers who need a narrower inner diameter | $94.99 |
| Iron Forge Tools 42″ Round | Large gatherings and big fire pit conversions | $199.99 |
How We Picked
Four criteria separate these products: whether the insert uses engineered airflow (vents or a secondary-combustion channel), steel gauge and overall build thickness, rust protection via coating or material choice, and the range of inner/outer diameters offered. Price was evaluated relative to those physical attributes rather than treated as a standalone factor, since a thin, unvented ring at $50 is a worse value than a vented, coated ring at $90.
The 8 Best Smokeless Fire Pit Insert in 2026
Iron Forge Tools 36″ Round Steel
This insert targets homeowners with a standard 36-inch stone or brick fire ring who want genuine airflow engineering without the premium price tag of Iron Forge’s larger models. Owner feedback consistently highlights the vent placement and the satisfaction of watching the secondary burn kick in once the fire establishes. The gauge is thick enough to resist warping over multiple seasons, and the finish holds up to weather exposure better than uncoated alternatives at similar prices. One recurring note is that the outer lip can sit slightly proud of the ring if the existing stone work is uneven, requiring minor adjustment. Skip this if your pit has a narrower inner diameter under 36 inches, as the fit will not seat flush.
SoulMate 40″ Outer / 36″ Inner
At $58.99, this is the least expensive entry that still carries a legitimate “smokeless” claim, and owners confirm the airflow channels produce a visible difference compared to a plain ring. The 40-inch outer diameter means it spans most standard paver or stone borders without additional trimming. Build thickness is adequate but not heavy; buyers in regions with prolonged wet winters report surface rust appearing within one to two seasons if the unit sits uncovered. For patio owners in drier climates who want the smoke-reduction effect at a near-minimal spend, this is a sensible starting point. Skip if you expect the insert to survive multiple unseasoned winters without touch-up.
SoulMate 46″ Outer / 42″ Inner
The larger sibling in SoulMate’s lineup, this model serves the same DIY audience but fits bigger rings and allows a more substantial fuel load for entertaining larger groups. Owners note the smoke reduction remains consistent with the smaller version, and the extra diameter does not introduce fit issues in standard installations. The trade-off is proportionate to price: the steel is the same gauge, so at the larger size the walls flex a bit more under heavy logs. Rust exposure is a similar concern in wet climates. Skip if you already own the 36-inch version and your gatherings stay under six people, as the extra size adds no practical benefit there.
Iron Forge Tools 36″ Round
This premium 36-inch insert is built for buyers who want the best combination of airflow design, material thickness, and finishing in a mid-size footprint. Owner comparisons against budget alternatives highlight noticeably sturdier construction and a more refined weld profile. The smoke output is among the lowest in this group when used with seasoned hardwood. The $149.98 price is the main barrier, and some buyers who already own a functional stone ring feel the cost is hard to justify when less expensive options deliver 80 percent of the result. Skip if budget is a primary constraint and a $60–$90 unit would serve your setup equally well.
Zzuvjoy 36″
Zzuvjoy’s insert earns attention for packing a defined air-vent system and an explicit anti-rust powder coat into a $59.99 package, a combination that most competitors only offer above $80. Owners report the vents are functional and do reduce visible smoke once the fire is established. The black steel finish looks clean on modern patios and resists early-stage corrosion better than bare metal options. The criticism centers on the rim thickness, which is thinner than Iron Forge equivalents, and some units arrive with minor cosmetic coating gaps that require touch-up paint. Skip if you need a heavy-gauge insert for large round logs that rest against the wall during the burn.
BigXwell 36″
This is a straightforward above-ground ring insert aimed at homeowners who want a simple, no-fuss upgrade to an existing fire pit with minimal installation effort. Owners appreciate the clean circular profile and the fact that it drops into place without tools. Smoke reduction is noticeable but less dramatic than models with dedicated secondary-combustion channels, placing it in the “improved” rather than “near-smokeless” category. At $89.99, it sits in a middle band where some buyers feel the airflow design does not fully justify the price over the $59 Zzuvjoy. Skip if your primary goal is eliminating smoke almost entirely rather than reducing it noticeably.
BPS 36″ Outer / 30″ Inner
The BPS insert addresses a specific sizing gap: pits where the outer opening is 36 inches but the usable inner diameter is only 30 inches, common in older brick installations with thick mortar joints. Owners in that exact situation call it a precise fit that avoids the wobble and gap problems a 36-inch inner ring would cause. Build quality is solid for the $94.99 price point, and airflow vents are present. The narrower inner diameter naturally limits fuel load, so heat output per fire is lower than wider options. Skip if your inner diameter is 34 inches or more, as the extra clearance will make the insert sit loosely.
Iron Forge Tools 42″ Round
The most expensive insert in this roundup at $199.99, Iron Forge’s 42-inch model is built for large-scale entertaining and substantial stone or steel rings where smaller options simply do not reach the wall. Owner feedback praises the heavy-gauge construction, the deep airflow channel, and the way secondary combustion sustains even with very large log stacks. The price is the obvious con and the only con that matters for most buyers; the smoke performance per dollar is strong but the absolute cost puts it out of reach for casual users. Skip unless you regularly host ten or more people around the fire or own a ring with an inner diameter of 40 inches or more.
Buying Guide
Inner Diameter and Fit Tolerance
Measure your existing ring’s inner diameter at its narrowest point before ordering anything. Most inserts here list both outer and inner diameters because the rim overhang matters in uneven stone work. A gap greater than half an inch between the insert wall and the ring interior creates wobble, poor airflow sealing, and an uneven burn line. If you have an older brick pit with thick mortar, look for a model like the BPS 36″/30″ that accounts for that dimension specifically.
Airflow Design Versus Plain Rings
True smokeless performance comes from vented walls or a secondary combustion channel that re-burns gases above the primary flame. Products marketed as “smokeless” without any visible vent structure, perforation pattern, or raised inner ring are simply open bowls with a marketing label. The Zzuvjoy, Iron Forge, and BPS models all include identifiable ventilation. Compare whether the vents sit at the base (better for airflow intake) or along the wall (more for secondary burn), as base vents tend to perform more consistently with larger fuel loads.
Coating and Longevity in Wet Climates
Steel gauge matters for heat retention and warp resistance, but surface coating determines how long the insert looks acceptable outdoors. Powder coat or paint with a stated anti-rust property will hold up for two to three uncovered seasons before surface oxidation appears, while bare or minimally treated steel can show rust within the first winter. If you live east of the Rockies or in the Pacific Northwest, budget for a cover or prioritize coated options like the Zzuvjoy or SoulMate models that explicitly reference rust protection.
Our Verdict
The top pick is the Iron Forge Tools 36″ Round Steel at $104.99, which delivers the best balance of airflow engineering, build thickness, and fit reliability for the most common pit size. For a budget pick, the Zzuvjoy 36″ at $59.99 is hard to beat given its vented design and anti-rust coating at that price point. The BPS 36″/30″ wins outright if your inner diameter is genuinely 30 inches, since no other product in this group seats correctly in that dimension.
FAQ
Do these inserts work with wood pellets or gas?
No. Every product in this roundup is designed for wood or charcoal combustion with airflow channels sized for solid fuel. Pellet and gas conversions require entirely different burner assemblies and are not compatible with these ring inserts.
How much does a smokeless insert actually reduce smoke?
Owner reports consistently describe near-elimination of visible smoke once the secondary burn engages, which typically happens a few minutes after ignition. During startup and when the fuel is cold or damp, some smoke remains present regardless of insert quality.
Can I use these for in-ground pits?
SoulMate and several others are explicitly listed for above-ground or in-ground use. The key requirement is that your existing ring has a flat, stable surface for the insert rim to rest on. Loose dirt or grass at the rim edge will create fit gaps.
What fuel gives the best smokeless performance?
Seasoned hardwood at 20 percent moisture or below produces the cleanest secondary burn. Softwoods, wet or freshly cut timber, and heavily resinous species generate more visible smoke even in well-vented inserts, which owners frequently note in reviews.
