An outdoor kitchen side burner insert can turn a grill island into a more complete cooking station, making it easier to simmer sauces, boil sides, and prep full meals outside.
Below, we focus on built-in options that balance durability, heat output, and installation compatibility, so you can choose a model that fits your cooking style and fuel setup.
Best 10 Outdoor Kitchen Side Burner Insert Picks for 2026
Compact LP Side Burner Pick
Stanbroil 304 Stainless Single Burner
- 304 stainless steel built for outdoor durability
- 12,000 BTU cast brass burner for quick cooking
- LP-only built-in design with removable lid
Best For: LP-only outdoor kitchens needing a compact single burner
Feature-Rich Double Burner Pick
Whistler BBQ Built-In Double Side Burner
- Two cast brass burners deliver 24,000 BTUs total
- 304 stainless steel build with LED control panel lights
- Includes grease tray, lid, and conversion kit
Best For: Outdoor kitchen islands needing a feature-packed double burner
Classic Double Burner Choice
RCS Premier Series Double Side Burner
- Two 12,000 BTU burners for 24,000 BTUs total
- 304 stainless steel built for built-in cabinet installs
- Includes ignitor plus cover/lid
Best For: Non-combustible cabinets needing a straightforward double burner
Natural Gas Style Pick
Stanbroil Hygrill Black Side Burner
- Matte black finish for a subtler outdoor look
- 12,000 BTU natural gas burner with lid
- Compact built-in single-burner design
Best For: Natural gas outdoor kitchens wanting a black single burner
Dual-Burner Power Pick
Double Side Burners for Outdoor Kitchen BBQ Islands
- Two burners, 24,000 BTUs total
- 304 stainless steel with brass burners
- LP/NG convertible with LED knobs
Best For: Outdoor kitchens needing a powerful dual side burner
Compact Drop-In Choice
Built-in Single Side Grill Burner with Cover
- 12,000 BTU single burner
- Full cover helps shield from weather
- LP and natural gas compatible
Best For: Compact outdoor kitchens that want a covered single burner
Natural Gas Workhorse
- Two burners, 24,000 BTUs total
- Natural gas only
- 304 stainless steel with cover
Best For: Built-in outdoor kitchens connected to natural gas
Natural Gas Pick
Stanbroil Built-in Single Side Burner
- 304 stainless steel build for outdoor durability
- 12,000 BTU cast brass burner for everyday cooking
- Natural gas only with built-in compact sizing
Best For: Natural gas outdoor kitchens needing a durable single burner
High-Power Dual Burner
304 Stainless Double Burner, 2x18,000 BTU
- Two 18,000 BTU burners for strong heat
- Convertible LP to natural gas with injectors
- 304 stainless steel with lid, grate, and drop tray
Best For: High-heat outdoor kitchens needing a double burner
Convertible Compact Pick
VEVOR 15,000 BTU Convertible Single Burner
- 15,000 BTU output for frying, boiling, and stir-frying
- Convertible for propane or natural gas use
- 304 stainless steel with compact built-in sizing
Best For: Small grill islands needing a flexible single burner
Compact LP Side Burner Pick – Stanbroil 304 Stainless Single Burner
If you want a straightforward outdoor kitchen side burner insert for quick sauces, sides, or boiling water, this Stanbroil built-in model keeps the setup simple. It uses 304 stainless steel construction, a 12,000 BTU cast brass burner, and a removable lid for everyday outdoor use.
Best For: LP-only outdoor kitchens that need a compact single burner with a clean stainless look.
Pros:
- 304 stainless steel build is designed for rust resistance and outdoor durability
- 12,000 BTU output is suited for searing, simmering, and side dishes
- Removable stainless steel cooking grid and cover make cleanup easier
- Upgraded knob is designed to be easy to operate and not interfere with lid closure
Cons:
- Liquid propane only, so it will not work for natural gas setups
- Single-burner design offers less cooking space than double burner options
- Requires a built-in installation with specific cutout dimensions
For buyers who mainly want an efficient side station rather than a larger cook zone, this Stanbroil insert covers the basics well. It is a practical match for outdoor kitchens where durability and simple operation matter more than extra burner count.
Feature-Rich Double Burner Pick – Whistler BBQ Built-In Double Side Burner
This outdoor kitchen side burner insert is aimed at buyers who want more cooking room and a few convenience extras. The Whistler built-in double side burner combines two cast brass burners, 304 stainless steel construction, blue LED control panel lights, and a removable grease tray for easier cleanup.
Best For: Outdoor kitchen islands that need a double burner with both propane and natural gas flexibility.
Pros:
- Two burners deliver a combined 24,000 BTUs for more versatile side cooking
- 304 stainless steel body and heavy-duty grate support outdoor use
- Blue LED control panel lights add a visible, premium touch
- Includes a removable grease tray and conversion kit for added convenience
Cons:
- Larger cutout and footprint mean it is not a compact option
- More features may be unnecessary if you only need one burner
- Built-in installation requires matching the specified dimensions
If you want a side station that feels more complete, this model stands out with double burners and cleaner maintenance features. It is a strong fit for larger outdoor kitchens that benefit from extra prep-and-cook flexibility.
Classic Double Burner Choice – RCS Premier Series Double Side Burner
The RCS built-in propane gas stainless steel double side burner is a traditional outdoor kitchen side burner insert for buyers who want two burners in a clean stainless package. It uses 304 stainless steel construction, two 12,000 BTU burners, and includes an ignitor and cover/lid for built-in cabinet installs.
Best For: Non-combustible outdoor kitchen cabinets that need a simple two-burner stainless setup.
Pros:
- Two 12,000 BTU burners provide a practical 24,000 BTU total output
- 304 stainless steel construction is built for built-in outdoor use
- Includes ignitor and cover/lid for added convenience
- Designed to drop into non-combustible outdoor kitchen cabinets
Cons:
- Must be installed in a non-combustible cabinet
- You need to choose the correct natural gas or liquid propane version
- More basic feature set than some newer side burner models
This RCS unit is a straightforward pick if you want reliable double-burner functionality without extra frills. It makes the most sense in outdoor kitchens that already have a proper cabinet and want a dependable built-in cooking add-on.
Natural Gas Style Pick – Stanbroil Hygrill Black Side Burner
If you are shopping for an outdoor kitchen side burner insert with a darker finish, this Stanbroil Hygrill model offers a matte black look that blends into many outdoor setups. It is a natural gas stainless steel side burner with a lid, 12,000 BTU output, and the same compact overall sizing as the brand’s other built-in single-burner options.
Best For: Natural gas outdoor kitchens that want a compact single burner with a black finish.
Pros:
- Matte black finish offers a more subtle, understated appearance
- 12,000 BTU burner can boil large pots of water quickly
- Compact size and built-in design make it easier to fit into an outdoor kitchen island
- Includes a lid and is described as easy to install and use
Cons:
- Natural gas only, so it is not for propane setups
- Single-burner design limits cooking capacity compared with double units
- No detailed materials or feature list beyond the core burner and size info
This model is a good match if you want a simple built-in burner with a less reflective finish. It keeps the feature set focused on everyday side cooking, which is useful when your main grill already handles most of the workload.
Dual-Burner Power Pick – Double Side Burners for Outdoor Kitchen BBQ Islands
If you want an outdoor kitchen side burner insert that can handle multitasking, this double-burner setup is built for side dishes, sauces, and boiling while the main grill stays busy. Its 304 stainless steel build, cast brass burners, and LED knob lighting make it a strong fit for evening cookouts and more demanding outdoor setups.
Best For: Grills and BBQ islands that need a high-output, dual-burner side station with flexible gas compatibility.
Pros:
- Two cast brass burners deliver a total of 24,000 BTUs for faster heating.
- Heavy-duty 304 stainless steel construction is designed for long-term outdoor use.
- Includes a removable lid, drip tray, and grate for easier cleanup.
- LP/NG convertible design adds installation flexibility.
Cons:
- Requires a specific cutout size for installation.
- Bulkier than a single-burner option.
- Best suited to built-in outdoor kitchen setups rather than portable use.
This is a practical choice if you want more cooking capacity beside your grill and value durable materials plus useful extras like LED knobs and a removable drip tray. The higher output and dual-burner layout make it especially appealing for bigger outdoor entertaining setups.
Compact Drop-In Choice – Built-in Single Side Grill Burner with Cover
This outdoor kitchen side burner insert is aimed at buyers who want a compact built-in burner with a clean drop-in look and weather-helping cover. With 304 stainless steel construction and 12,000 BTUs of heat, it suits everyday tasks like boiling, stir-frying, and simmering beside a main grill.
Best For: Smaller outdoor kitchen builds that need a single built-in burner with a full cover and dual-fuel support.
Pros:
- Upgraded full cover helps block wind, rain, and debris.
- 12,000 BTU output provides quick, even heating.
- 304 stainless steel construction and brass burner cap add durability.
- Supports both LP and natural gas for flexible installation.
Cons:
- Single-burner layout offers less cooking space than double units.
- Lower output than some larger side burners.
- Designed for built-in use, so it is not a portable option.
If you prefer a simpler built-in burner with a neat integrated look, this model keeps the essentials focused on durability and everyday usefulness. The covered design and dual-gas compatibility make it a sensible fit for many outdoor kitchen layouts.
Natural Gas Workhorse – Hygrill Double Side Burner
For shoppers looking for an outdoor kitchen side burner insert to pair with a natural gas setup, this double burner offers a straightforward, built-in-friendly solution. It uses two brass burners, a 304 stainless steel body, and a stainless cover to support everyday outdoor cooking tasks like simmering sauces or boiling corn.
Best For: Natural gas outdoor kitchens that want a two-burner side station for entertaining and multitasking.
Pros:
- Two brass burners provide a combined 24,000 BTUs.
- 304 stainless steel construction is built for outdoor durability.
- Stainless steel cover adds protection when not in use.
- Fits many built-in style outdoor gas grill setups.
Cons:
- Natural gas only, so it requires a plumbed gas line.
- No LP conversion option is listed.
- Installation is not as flexible as dual-fuel models.
This is a solid pick if your patio already has natural gas and you want a no-nonsense double burner that expands your cooking station. It focuses on core performance and compatibility with built-in outdoor grill islands.
Natural Gas Pick – Stanbroil Built-in Single Side Burner
If you want an outdoor kitchen side burner insert for a natural gas setup, this Stanbroil built-in single burner is a straightforward add-on for sauces, sides, and quick high-heat tasks. Its 304 stainless steel build is made for outdoor use, and the 12,000 BTU cast brass burner gives you enough output for everyday prep without taking up much counter space.
Best For: Homeowners with a plumbed natural gas outdoor kitchen who want a compact built-in side burner.
Pros:
- 304 stainless steel construction is designed to resist rust and handle outdoor weather.
- 12,000 BTU output is suited for boiling, simmering, and cooking sides.
- Removable lid and stainless steel cooking grid make cleanup easier.
- Compact built-in size works well beside a main grill.
Cons:
- Natural gas only, so it will not work with propane without choosing a different version.
- Single-burner design offers less cooking space than double-burner options.
This is a practical choice if you already have natural gas plumbed to your patio and want a durable, space-saving side burner that blends into a built-in grill island.
High-Power Dual Burner – 304 Stainless Double Burner, 2×18,000 BTU
For an outdoor kitchen side burner insert that prioritizes output, this dual-burner unit stands out with 2 x 18,000 BTU burners for fast boiling and bigger side-dish jobs. The 304 stainless steel body is built for outdoor use, and the included lid, grate, and drop tray make it a flexible fit for a busy BBQ island.
Best For: Cooks who want a high-output double side burner for propane or converted natural gas setups.
Pros:
- Two 18,000 BTU burners deliver strong heat for rapid boiling and multi-pan cooking.
- Convertible between liquid propane and natural gas with the correct injectors.
- 304 stainless steel construction is designed for long-term outdoor durability.
- Includes detachable drop tray, lid, grate, and knob lighting for easier use.
Cons:
- Natural gas and propane regulators are not included.
- Larger footprint may require more space in an outdoor kitchen cutout.
This is a strong pick if you need more cooking power than a single burner can offer and want the flexibility to run propane now and convert later.
Convertible Compact Pick – VEVOR 15,000 BTU Convertible Single Burner
If you want a compact outdoor kitchen side burner insert that can work with either propane or natural gas, this VEVOR single burner is built for flexible installs. Its 15,000 BTU output is strong enough for frying, stir-frying, and boiling, while the 304 stainless steel build and covered design help it hold up outdoors.
Best For: Small outdoor kitchens and grill islands that need a convertible single burner.
Pros:
- 15,000 BTU burner provides solid heat for a range of everyday cooking tasks.
- Includes propane regulator plus NG and LP nozzles for easier conversion.
- 304 stainless steel construction is corrosion-resistant and built for outdoor use.
- Compact size helps it fit into a smaller built-in setup.
Cons:
- Single-burner design is less versatile than a double-burner model.
- Cutout dimensions need to be checked carefully before installation.
Overall, this is a practical option if you want a space-saving burner that can adapt to your fuel setup and still deliver enough heat for daily outdoor cooking.
How We Picked the Best Outdoor Kitchen Side Burner Insert
We looked for built-in side burners that make sense for real outdoor kitchen use: stainless steel construction, dependable ignition, appropriate BTU output, and clear fuel compatibility. We also favored models that appear suited to common island cutouts and everyday cooking tasks rather than oversized or novelty designs.
Quick Comparison
The main differences come down to burner count, fuel type, and material quality. Single burners are usually better for compact islands and simple prep work, while double burners add flexibility for multitasking. If you already know your fuel line type, narrowing the list to propane-only, natural gas-only, or convertible models will save time and prevent installation issues.
Key Buying Factors for an Outdoor Kitchen Side Burner Insert
Fuel Type
Match the burner to your setup first. A propane-only model is straightforward if you use LP tanks, while natural gas versions are better for hard-plumbed kitchens. Convertible units offer flexibility, but installation should still follow the manufacturer’s instructions.
Construction and Finish
For an Outdoor Kitchen Side Burner Insert, 304 stainless steel is a strong sign of better corrosion resistance and long-term outdoor durability. Cast brass components can also improve burner performance and heat consistency.
Heat Output
Higher BTU ratings are useful for fast boiling and searing, but raw power is not everything. A well-designed burner with stable flames and even heat distribution can be more useful than a higher-rated model that is harder to control.
Size and Cooking Use
Single burners suit small patios, occasional side dishes, and limited counter space. Double burners are better if you often cook multiple items at once or want more control over separate pots and pans.
Installation and Fit
Check cutout dimensions, mounting style, and lid or cover clearance before buying. The right fit matters as much as the burner itself, especially if you are upgrading an existing island.
Who Should Buy Which Outdoor Kitchen Side Burner Insert?
If you want a simple, space-saving option, choose a single-burner model. If you cook for larger gatherings or need more flexibility, a double burner is the better fit. If your priority is long-term outdoor durability, look closely at 304 stainless steel and higher-quality burner hardware. For buyers who want fewer constraints, a convertible Outdoor Kitchen Side Burner Insert can be the most practical choice, as long as it matches local gas requirements and your installation plan.