The best drop-in gas fireplace insert depends on your opening shape, fuel supply, and desired output. These five burner pans suit custom fire pits and fire tables: the VEVOR kit is best for a compact setup with included accessories, the Stanbroil 48-by-14-inch kit is best for a long rectangular build with spark ignition, and the onlyfire square pan is best for a high-output square design. These products are burner assemblies, not complete, finished fireplaces; confirm installation requirements before buying.
| Product | Best For | Key Detail |
|---|---|---|
| VEVOR 24-by-8-inch kit | Compact projects | 120,000 BTU; accessories included |
| Stanbroil 48-by-14-inch kit | Long rectangular builds | Natural gas; spark ignition |
| onlyfire 30-inch square pan | Square, high-output pits | 296,000 BTU maximum |
| Stanbroil 31-inch round pan | Large round pits | 24-inch burner ring |
| Stanbroil 19-inch round pan | Smaller round pits | 92,000 BTU maximum |
VEVOR 24-by-8-Inch Drop-In Fire Pit Pan

Best for: Buyers building a compact rectangular fire pit who want a kit with several connection and control parts included. Its listed burner output is 120,000 BTU, a lower maximum than the larger high-output pans in this selection.
The kit includes a 4-foot connection hose, a 4.4-foot propane regulator hose, an igniter, a valve, and sealing tape. The pan has a drainage hole, and the listing describes the burner as quiet and designed to avoid hose whistling. It is offered in 24-, 30-, and 36-inch size options; verify the selected size and exact dimensions before ordering.
This is the most convenience-oriented choice in the comparison because the product listing specifies a set of accessories rather than just a pan and burner. The listing describes use indoors or outdoors, but that does not establish that every fireplace, room, or installation meets applicable requirements. Confirm permitted use, ventilation, clearances, and fuel connections with the manual and local authorities. Its stated propane configuration may not suit a buyer seeking a natural-gas-ready package.
Stanbroil 48-by-14-Inch Kit With Spark Ignition

Best for: A long rectangular outdoor fire table or custom patio feature using natural gas. This kit combines a 48-by-14-inch pan with an installed H-shaped burner rated for up to 185,000 BTU and includes spark ignition, according to the product name and listing.
The pan and burner are made of 304 stainless steel. The listing describes the kit as intended for natural gas and for outdoor DIY projects such as a fire table or patio feature. Its long, narrow shape is a better fit for an elongated opening than for a square or round fire pit.
Choose this option if natural gas and a spark-ignition feature align with the project. It is not the right pick for a buyer who needs a product explicitly described as compatible with propane; the listed fuel is natural gas. The product is a burner-and-pan assembly, so do not assume it includes every control, connection, or construction component required for a complete installation. Check the opening dimensions and installation instructions before committing.
onlyfire 30-Inch Square Fire Pit Flat Pan

Best for: Buyers making a square fire pit who prioritize a high listed maximum output. This 30-inch square pan has a 24-inch square burner, a 1/2-inch middle inlet, and a maximum rating of 296,000 BTU.
The pan is described as stainless steel, with a 1 1/4-inch flange on all sides for drop-in installation. The product listing says its fuel ports are precision drilled for smoother gas flow and identifies both natural gas and propane as intended fuels.
This is a stronger match for a broad square design than the rectangular and round alternatives. Its high maximum output is a specification, not a guarantee of a particular flame appearance or heat in a finished installation. Propane requires an air mixer valve, which the listing says is sold separately. Avoid choosing this pan until you have confirmed that your planned opening accommodates its dimensions and that the required fuel controls and fittings are available.
Stanbroil 31-Inch Round Fire Pit Burner Pan

Best for: Large round fire pits that need a wide pan and a substantial burner ring. The 31-inch pan comes with a preinstalled 24-inch ring rated for up to 296,000 BTU.
Both the pan and burner are listed as 304 stainless steel. The product is described as compatible with natural gas or liquid propane and has a male 1/2-inch gas inlet. The listing notes that hoses and connection kits are sold separately, with options depending on the selected fuel.
Choose this model if a round opening is the defining constraint and you can source the appropriate connection parts separately. It offers a larger round format than the 19-inch Stanbroil pan, but its maximum output is also considerably higher, so the surrounding design and installation must be appropriate for the burner. Check the required clearances, fuel supply, and opening dimensions rather than relying on pan diameter alone.
Stanbroil 19-Inch Round Fire Pit Burner Pan

Best for: Smaller round projects where a 31-inch pan would be too large. This insert has a 19-inch pan and a 12-inch double burner ring rated for up to 92,000 BTU.
The assembly uses 304-grade stainless steel and has a male 1/2-inch gas inlet. The listing says it can use propane or natural gas, with plumbing hidden below the tray for a clean finished appearance. It also describes space for fire rocks or fire glass; the stated capacity is up to 20 pounds of fire rocks or approximately 30 pounds of fire glass.
This is the lower-output and smaller-footprint round option among the selected products. It can suit a compact fire table better than the larger round model, but it is not a match for buyers who need a long rectangular or square burner. Verify whether the necessary fuel hoses and connections are included: the supplied product details do not specify that they are. Follow the product instructions for media and installation rather than assuming any decorative material is suitable.
Buying Guide: How to Choose a Drop-In Gas Fire Pit Insert
Is a drop-in burner pan the same as a complete gas fireplace?
No. The products here are burner pans or burner-and-pan kits for custom fire pits and tables. They do not, based on the supplied listings, constitute complete finished fireplaces with an enclosure, surround, or all installation components. If you are replacing or installing a home fireplace, confirm that the product is designed and approved for that specific application. Do not treat a fire pit burner as a substitute for a complete fireplace appliance.
What shape and size should I measure for?
Measure the opening where the pan will rest, including its usable length, width, and depth. Compare those measurements with the pan dimensions and flange, not just the burner ring. A 48-by-14-inch pan is intended for a different shape of project than a 30-inch square or 31-inch round pan. Leave room for the installation and clearances required by the manufacturer and local code. Do not assume a nominal size alone guarantees fit.
Which fuel type do I need?
Start with the gas supply available at the installation site. Some products in this selection state compatibility with both natural gas and propane, while the Stanbroil spark-ignition kit is listed for natural gas. Fuel choice can change the required regulator, hose, air mixer, burner configuration, and connection method. For example, the onlyfire listing says propane use requires a separately sold air mixer valve. Confirm the exact configuration in the product instructions before purchase.
How much burner output is appropriate?
Compare the listed maximum BTU ratings, but do not select solely by the largest number. The featured products range from 92,000 BTU for the Stanbroil 19-inch round pan to 296,000 BTU for the onlyfire square pan and Stanbroil 31-inch round pan. The right output depends on the burner design, fuel supply, installation, and intended use. A high rating does not by itself establish the heat delivered to people or the safe size of a fire feature.
What components are included?
Read the included-parts list closely. The VEVOR kit specifies hoses, an igniter, a valve, and other accessories. The Stanbroil 31-inch round pan says hoses and connection kits are sold separately. Other listings may describe a pan and burner without listing every control or fitting. Ask whether the exact fuel-specific parts are supplied, and avoid assuming that an accessory shown in a product image is included unless the listing says so.
Does stainless steel remove the need for maintenance?
No material should be treated as maintenance-free. Several listed pans specify 304 stainless steel, which the product descriptions associate with heat resistance and corrosion resistance. Even so, weather exposure, water retention, installation, and care affect service life. Drainage matters: the VEVOR listing identifies a drainage hole, and the Skyflame product details also specify weep holes. Keep the pan and burner maintained according to the manufacturer’s instructions.
Can a fire pit insert be installed indoors?
Do not infer indoor suitability from the phrase “indoor or outdoor” in a listing alone. Indoor gas appliances have specific requirements for product approval, ventilation, venting, clearances, and installation. Confirm that the exact model is approved for the intended indoor use and comply with local building and fire codes. Consult a qualified gas professional when the fuel line, controls, or installation requirements are uncertain.
Frequently Asked Questions
What is the best drop-in gas fire pit insert for a compact project?
The VEVOR 24-by-8-inch pan is a compact option in this selection. It lists a 120,000 BTU burner and includes specified hoses, an igniter, and a valve. Confirm the selected size, fuel configuration, and installation requirements before ordering.
Which selected insert has the highest listed BTU rating?
The onlyfire 30-inch square pan and Stanbroil 31-inch round pan each list a maximum rating of 296,000 BTU. Their shapes differ, so choose based on the fire pit opening and installation requirements rather than the rating alone.
Which product is listed for natural gas with spark ignition?
The Stanbroil 48-by-14-inch rectangular fire pit kit is described as natural-gas-fueled and includes spark ignition. Its listing does not identify propane as a compatible fuel.
Do these products include everything needed for installation?
Not necessarily. Included parts vary. The VEVOR kit lists several accessories, while the Stanbroil 31-inch round model says hoses and connection kits are sold separately. Check the parts list for the exact model and fuel type.
Can I add fire glass or lava rock to any burner pan?
Do not assume all media are suitable for every burner. The Stanbroil 19-inch listing describes use with fire rocks or fire glass and gives capacity guidance. Follow the specific product instructions for approved media, quantities, and placement.