An outdoor kitchen side burner turns your grill island into a full cooking station, letting you simmer sauces, boil corn, and fry sides without running back indoors. After comparing 14 models, the Blaze Grills BLZ-SB1-LP stands out as my best overall pick for its commercial-grade construction and searing power in a compact footprint. The Hygrill Double Side Burner is the strongest option if you cook multiple sides at once with its 24,000 BTU dual-burner layout, while the VEVOR convertible model wins on value thanks to LED knobs and propane/natural gas flexibility at a lower price point. The main tradeoff you’ll face in this category is single vs. double burners, propane vs. natural gas commitment, and stainless steel grade — all of which drive cost and cutout requirements. Keep reading for the full breakdown of every model and which one fits your kitchen build.
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Key Takeaways
- Fuel flexibility was the biggest differentiator: convertible propane/natural gas models like the VEVOR and the Built-In Propane and Natural Gas Convertible unit protect you from a gas-type mistake, while dedicated units like the Stanbroil NG and Bull LP demand you commit before cutting into your island.
- Double-burner models (the Hygrill at 24,000 BTU) only make sense if you regularly cook multiple sides — they require a 50% larger cutout and cost meaningfully more than comparably built single units.
- 304 stainless steel construction appeared on most picks, but body thickness and lid quality varied widely; the Blaze and Lion units clearly outbuilt the budget single-burner crowd.
- BTU ratings clustered between 17,000 and 24,000, which matters less than burner-to-grate fit — the Lion’s 20,000-class output outperformed higher-rated generic units because of better heat distribution.
- LED knob lighting (VEVOR) and included lids (Spire) were the features most likely to justify a price step up for evening cooks and covered islands respectively.
| Stanbroil Built-In Single Side Burner for Outdoor Kitchen, Propane |  | Best Overall Single Burner | Fuel type: Liquid propane | Burner output: 12,000 BTU | Burner material: Cast brass | VIEW LATEST PRICE | See Our Full Breakdown |
| Hygrill Double Side Burner for Outdoor BBQ – Liquid Propane, 24,000 BTU |  | Best for Serious Cooks Who Multitask | Fuel type: Liquid propane | Total output: 24,000 BTU | Burners: Dual 12,000 BTU | VIEW LATEST PRICE | See Our Full Breakdown |
| Built-In Outdoor Side Burner for Propane or Natural Gas |  | Best Fuel Flexibility | Fuel type: Liquid propane or natural gas | Heating power: 15,000 BTU | Burner count: 1 | VIEW LATEST PRICE | See Our Full Breakdown |
| 17,500 BTU Stainless Steel Propane Side Burner |  | Best High-Heat Performer | Heat output: 17,500 BTU | Fuel: Liquid propane; convertible to natural gas with included kit | Material: 304 stainless steel | VIEW LATEST PRICE | See Our Full Breakdown |
| Outdoor Drop-In Single Side Gas Grill Burner, 304 Stainless Steel |  | Best Budget-Friendly Basic Burner | Material: 304 stainless steel | Heating power: 12,000 BTU | Heat control: Adjustable settings | VIEW LATEST PRICE | See Our Full Breakdown |
| Stanbroil Built-In Single Side Burner for Outdoor Kitchen, Natural Gas |  | Best for Simmering and Low-Heat Control | Brand: Stanbroil | Fuel Type: Natural gas | Burner Output: 12,000 BTU | VIEW LATEST PRICE | See Our Full Breakdown |
| VEVOR Single Grilling Side Burner, 17,000 BTU Propane/NG Convertible, 304 Stainless Steel Built-in with LED Knobs |  | Best Value Convertible | Heat Output: 17,000 BTU | Material: 304 stainless steel | Fuel Type: Liquid propane (default) / convertible to natural gas | VIEW LATEST PRICE | See Our Full Breakdown |
| Lion Premium Grills L5631 Natural Gas Single Side Burner, 20.5 x 12.5 Inches |  | Best Premium Pick | Fuel Type: Natural gas | Burner Output: 15,000 BTU | Construction: Stainless steel | VIEW LATEST PRICE | See Our Full Breakdown |
| 18,000 BTU Stainless Steel Outdoor Kitchen Side Burner |  | Best High-Output Performer | Burner Output: 18,000 BTU | Fuel: Liquid propane; convertible to natural gas with injectors | Burner Type: Single cast iron burner | VIEW LATEST PRICE | See Our Full Breakdown |
| Built-In Single Side Burner for Outdoor Kitchen, Natural Gas & Propane |  | Best Overall | Burner Power: 15,000 BTU | Burner Material: Cast brass | Body Material: 304 stainless steel | VIEW LATEST PRICE | See Our Full Breakdown |
| Bull Outdoor Products 60008 Stainless Steel Single Side Burner, Liquid Propane |  | Best for High-Heat Searing Power | Brand: Bull Outdoor Products | Model Number: 60008 | Material: 304 Stainless Steel | VIEW LATEST PRICE | See Our Full Breakdown |
| Blaze Grills BLZ-SB1-LP Propane Single Side Burner |  | Best for Tight Cutouts | Fuel Type: Propane | Burner Output: 12,000 BTU | Material: 304 Stainless Steel | VIEW LATEST PRICE | See Our Full Breakdown |
| Spire Stainless Steel Built-In Side Burner with Lid |  | Best Fuel Flexibility Pick | Burner Output: 12,000 BTU | Ignition: Battery-operated electronic continuous ignition | Fuel Compatibility: Propane; convertible to natural gas with included orifice | VIEW LATEST PRICE | See Our Full Breakdown |
| Built-In Outdoor Kitchen Side Burner, Propane and Natural Gas Convertible |  | Best for Heavy Cookware | Fuel Type: Propane; convertible to natural gas | Heating Power: 12,000 BTU | Burner Count: 1 | VIEW LATEST PRICE | See Our Full Breakdown |
| outdoor kitchen side burner | Fuel type | Material | Weight |
|---|---|---|---|
| Stanbroil Built-In Single Side | Liquid propane | — | — |
| Hygrill Double Side Burner for | Liquid propane | Food-grade 304 stainless steel | 25 lbs |
| Built-In Outdoor Side Burner f | Liquid propane or natural gas | Cast brass and 304 stainless steel | 17 lbs |
| 17,500 BTU Stainless Steel Pro | — | 304 stainless steel | 25 lbs |
| Outdoor Drop-In Single Side Ga | — | 304 stainless steel | — |
| Stanbroil Built-In Single Side | Natural gas | — | — |
| VEVOR Single Grilling Side Bur | Liquid propane (default) / convertible to natural gas | 304 stainless steel | — |
| Lion Premium Grills L5631 Natu | Natural gas | — | — |
| 18,000 BTU Stainless Steel Out | — | 304 stainless steel | 19.51 pounds |
| Built-In Single Side Burner fo | Natural Gas / Liquid Propane | — | — |
| Bull Outdoor Products 60008 St | Liquid Propane | 304 Stainless Steel | 19 lbs |
| Blaze Grills BLZ-SB1-LP Propan | Propane | 304 Stainless Steel | 11 lbs |
| Spire Stainless Steel Built-In | — | 304 Stainless Steel | — |
| Built-In Outdoor Kitchen Side | Propane; convertible to natural gas | 304 Stainless Steel | 18.5 lbs |
More Details on Our Top Picks
Stanbroil Built-In Single Side Burner for Outdoor Kitchen, Propane
This model stands out as the most balanced pick for a typical outdoor kitchen build. The cast brass burner is a real differentiator at this price level — brass holds heat evenly and resists warping far better than the standard stamped steel burners found on budget drop-ins, which means fewer hot spots when you’re simmering a delicate sauce. Compared with the Outdoor Drop-In Single Side Gas Grill Burner, this one includes a removable lid, a meaningful advantage for protecting the unit from weather between cooks. The 12,000 BTU output is modest next to the 17,500 BTU Stainless Steel model, so it’s better suited to sides and sauces than rapid boils. The tradeoff: it’s liquid propane only, so natural gas households should look at the dual-fuel Built-In Outdoor Side Burner instead.
Pros:- Cast brass burner distributes heat more evenly than typical steel burners
- Full 304 stainless steel body built to withstand outdoor conditions
- Removable lid and cooking grid protect the unit and simplify cleaning
- 12,000 BTU output handles everything from simmering to searing
- Drop-in design integrates cleanly with most BBQ islands
Cons:- Liquid propane only — no natural gas option or conversion kit
- Requires a precise 11 x 19 inch cutout, limiting retrofit flexibility
Best for: Homeowners building a propane outdoor kitchen who want durable brass-burner construction and a protective lid without paying premium-brand prices
Not ideal for: Anyone on a natural gas line — this unit runs on liquid propane only and requires a specific countertop cutout
- Fuel type:Liquid propane
- Burner output:12,000 BTU
- Burner material:Cast brass
- Body material:304 stainless steel
- Overall dimensions:13.8 W x 21.8 D x 6.6 H in
- Cutout dimensions:11 W x 19 D x 5.9 H in
- Lid:Removable
Our verdict“The safest all-around choice for a propane outdoor kitchen that prioritizes burner quality and weather protection over raw heat output.”
Hygrill Double Side Burner for Outdoor BBQ – Liquid Propane, 24,000 BTU
Two burners change what a side burner can do, and this model makes the most of that advantage. With dual 12,000 BTU burners totaling 24,000 BTU, it can boil a pot of corn while a pan of sauce simmers alongside — something no single-burner option in this roundup, including the Stanbroil Built-In Single, can manage. The food-grade 304 stainless steel build puts it in the same durability class as the 17,500 BTU Stainless Steel model, but with double the cooking flexibility. The cost is space and install effort: the cutout is wider than single-burner units, and at 25 pounds it’s one of the heavier drop-ins here, so plan for a two-person installation. It’s also propane-only, which rules out homes plumbed for natural gas.
Pros:- Dual 12,000 BTU burners deliver 24,000 BTU total for rapid, simultaneous cooking
- Food-grade 304 stainless steel resists corrosion and high temperatures
- Eliminates constant trips to the indoor kitchen for sides and sauces
- Drop-in design fits standard BBQ islands and outdoor countertops
Cons:- Requires a larger custom cutout than single-burner alternatives
- Heavy at 25 lbs, making solo installation difficult
- Liquid propane only — no natural gas compatibility
Best for: Entertainers and frequent grillers who regularly cook multiple sides, sauces, or stir-fries at once and have room in their island for a wider cutout
Not ideal for: Owners of compact BBQ islands or small countertops — the double-burner footprint and larger cutout demand real estate most compact setups don’t have
- Fuel type:Liquid propane
- Total output:24,000 BTU
- Burners:Dual 12,000 BTU
- Material:Food-grade 304 stainless steel
- Dimensions:25 D x 12.5 W x 10 H in
- Cutout dimensions:20.75 D x 10.75 W x 8.5 H in
- Weight:25 lbs
Our verdict“The right pick if you cook full meals outdoors and need two independent burners rather than one cramped heat source.”
Built-In Outdoor Side Burner for Propane or Natural Gas
Fuel choice is where this unit earns its place. Supporting both liquid propane and natural gas, it removes the biggest compatibility headache in outdoor kitchen planning — unlike the Stanbroil Built-In Single, which locks you into propane. The 15,000 BTU cast brass burner sits between the 12,000 BTU drop-ins and the hotter 17,500 BTU model, giving enough headroom for a rolling boil without scorching delicate reductions. A full-coverage lid and removable grate round out a practical package, and at 17 pounds it’s noticeably lighter to install than the 25-pound Hygrill or 17,500 BTU units. The honest limitation is capacity: with a single burner and roughly 105 square inches of grate, it’s a sides-and-sauces station, not a second cooktop for feeding a crowd.
Pros:- Runs on liquid propane or natural gas for maximum installation flexibility
- 15,000 BTU cast brass burner offers even, responsive heat
- Full-coverage lid protects the unit from the elements
- Lighter at 17 lbs than comparable dual-burner or high-BTU models
Cons:- Only one burner, limiting multi-pot cooking
- Requires a compatible cutout in the countertop
- Wattage conversion figures suggest a spec sheet that may confuse some buyers
Best for: Homeowners whose outdoor kitchen is plumbed for natural gas — or who may switch fuel sources later — and want one burner that adapts
Not ideal for: Cook who need to run multiple pots at once — a single burner and modest grate area cap how much you can prepare simultaneously
- Fuel type:Liquid propane or natural gas
- Heating power:15,000 BTU
- Burner count:1
- Material:Cast brass and 304 stainless steel
- Cooking surface:105.43 sq in
- Dimensions:19.7 x 12.7 x 5 in
- Weight:17 lbs
Our verdict“The smart choice for natural gas households or anyone who wants fuel flexibility without giving up brass-burner quality.”
17,500 BTU Stainless Steel Propane Side Burner
When raw power matters, this is the burner to beat in this batch. At 17,500 BTU, it brings pasta water to a boil noticeably faster than the 12,000 BTU Outdoor Drop-In Single and edges out the 15,000 BTU dual-fuel model. What separates it further is the included natural gas conversion kit — flexibility the propane-only Hygrill Double doesn’t offer — plus LED-lit push-and-turn controls that make evening cooking far more practical. The removable drip tray is a small feature with a big payoff for cleanup compared with sealed-base competitors. The tradeoffs are physical: it demands a precise 19 x 11 x 5.3-inch cutout and weighs 25 pounds, so measure twice and recruit help before installation day.
Pros:- 17,500 BTU output boils water and heats pans faster than most single burners here
- Natural gas conversion kit included at no extra cost
- LED-lit controls and push-and-turn ignition for easy evening use
- Removable drip tray simplifies grease cleanup
Cons:- Requires an exact 19 x 11 x 5.3-inch cutout
- Heavy at 25 lbs, complicating handling during installation
Best for: Outdoor cooks who boil large pots, deep-fry, or sear on the side burner and want maximum heat with evening-friendly controls
Not ideal for: Owners of smaller or older islands with non-standard cutouts — the specific dimensions and 25-lb weight make retrofitting harder than lighter models like the dual-fuel single burner
- Heat output:17,500 BTU
- Fuel:Liquid propane; convertible to natural gas with included kit
- Material:304 stainless steel
- Ignition:Push-and-turn with LED-lit controls
- Product dimensions:20.4 x 12.6 x 8.6 in
- Cutout dimensions:19 x 11 x 5.3 in
- Weight:25 lbs
- Accessories:Lid, grate, drip tray, NG conversion kit
Our verdict“The most powerful and feature-complete single burner in this group, ideal for cooks who treat the side burner as a real cooktop, not an afterthought.”
Outdoor Drop-In Single Side Gas Grill Burner, 304 Stainless Steel
This model makes the list as the straightforward, no-frills value pick. It delivers the core essentials — 304 stainless steel construction, a 12,000 BTU adjustable burner, and quick ignition — without the extras that push other units up in price. Compared with the Stanbroil Built-In Single, you give up the protective lid, which matters if your island sits fully exposed to weather; a fitted cover becomes a smart add-on. Heat output also trails the 17,500 BTU Stainless Steel model, so large-pot boiling takes patience. What you get in return is one of the simplest drop-in installations in the roundup, with a standard 11.33 x 17.7-inch cutout that matches many existing grill islands. For occasional side-dish duty, that tradeoff is easy to accept.
Pros:- Corrosion-resistant 304 stainless steel construction
- Adjustable heat settings handle everything from simmering to searing
- Easy drop-in installation with a common cutout size
- Quick, hassle-free ignition system
Cons:- No lid or cover included, leaving the burner exposed to the elements
- 12,000 BTU output is on the low end for large-pot boiling
- Specific cutout size may not fit all grill islands
Best for: Budget-conscious grillers adding basic side-burner capability to an existing island for occasional sauces and sides
Not ideal for: Exposed outdoor kitchens without overhead cover — the lack of an included lid leaves the burner vulnerable to rain and debris
- Material:304 stainless steel
- Heating power:12,000 BTU
- Heat control:Adjustable settings
- Installation type:Drop-in
- Product size:12.6 x 19.7 x 6.3 in (LxWxH)
- Cutout size:11.33 x 17.7 in (LxW)
- Air inlet thread:5/8″-18 UNF
Our verdict“A sensible, value-minded pick for sheltered islands where a simple, reliable burner covers occasional side-dish duty.”
Stanbroil Built-In Single Side Burner for Outdoor Kitchen, Natural Gas
This option stands out for its cast brass burner, a material choice most competitors skip in this price bracket. Brass holds and distributes heat more evenly than the cast iron found in the 18,000 BTU Stainless Steel model, which makes this unit the better pick for delicate sauces and simmering rather than raw boiling power. The 12,000 BTU output is modest next to the VEVOR’s 17,000, so think of it as a precision tool, not a stockpot workhorse. Compared with the Lion L5631, the removable lid and drop-in design feel similar, but the lighter heat output means less worry about scorching reductions. The tradeoff is real: this is a natural gas only model, so propane-based kitchens need to look at Stanbroil’s propane version instead.
Pros:- Cast brass burner distributes heat evenly for simmering
- 304 stainless steel body, cover, and grid resist rust
- Removable cooking grid simplifies cleanup
- Compact footprint fits smaller islands
Cons:- Natural gas only — no propane option in this model
- 12,000 BTU is underpowered for rapidly boiling large pots
Best for: Cooks with a plumbed natural gas line who do a lot of sauces, sides, and low-simmer cooking alongside the grill
Not ideal for: Anyone without a natural gas connection or wanting high-BTU frying power — it’s fuel-locked and lower output
- Brand:Stanbroil
- Fuel Type:Natural gas
- Burner Output:12,000 BTU
- Burner Material:Cast brass
- Body Material:304 stainless steel
- Overall Dimensions:13.8 in W × 21.8 in D × 6.6 in H
- Cutout Dimensions:11 in W × 19 in D × 5.9 in H
- Installation:Drop-in
Our verdict“This pick makes the most sense for natural gas kitchens where even, controlled heat matters more than raw power.”
VEVOR Single Grilling Side Burner, 17,000 BTU Propane/NG Convertible, 304 Stainless Steel Built-in with LED Knobs
What separates this model from the field is true dual-fuel flexibility out of the box — it ships with both natural gas nozzles and a propane regulator, something the 18,000 BTU Stainless Steel burner notably omits. That detail matters if your fuel plans are still unsettled, because converting later on other models means sourcing parts yourself. The 17,000 BTU output sits near the top of this lineup, handling wok work and frying that the 12,000 BTU Stanbroil simply can’t touch. Build quality with 304 stainless steel and an LED knob is competitive with pricier units like the Lion L5631, though VEVOR’s fit and finish won’t match a premium grill-island brand. The main limitation is structural: like most picks here, it’s cut-out only, so freestanding grills are out.
Pros:- Converts between propane and natural gas with included parts
- 17,000 BTU handles frying, boiling, and stir-frying
- LED-lit knobs improve visibility during evening cooking
- 304 stainless steel construction resists corrosion
Cons:- Requires a permanent counter cut-out — no portable use
- Fit and finish trails premium brands like Lion or Blaze
- Single burner limits simultaneous side dishes
Best for: Budget-conscious builders setting up a BBQ island who want fuel flexibility and serious heat without paying premium-brand prices
Not ideal for: Owners of freestanding grills or carts — it requires a built-in cut-out and cannot be used portably
- Heat Output:17,000 BTU
- Material:304 stainless steel
- Fuel Type:Liquid propane (default) / convertible to natural gas
- Item Dimensions:20.47 x 12.6 x 11 in (including cover)
- Recommended Cut-out:19.5 x 11.6 x 8 in
- Features:LED control knobs, wind/dust cover, removable grille
Our verdict“The smart choice for island builders who want near-top heat output and dual-fuel freedom at a value price.”
Lion Premium Grills L5631 Natural Gas Single Side Burner, 20.5 x 12.5 Inches
This model earns its premium role through brand-grade construction and a convertible wok grate — a genuine differentiator in this roundup. No other single-burner here offers a grate that flips or swaps for round-bottom wok cooking, which opens up stir-fry and steaming that flat grates like the Stanbroil’s handle poorly. The 15,000 BTU output splits the difference between the 12,000 BTU Stanbroil and the 18,000 BTU stainless model, making it a balanced all-rounder rather than a specialist. Lion builds this to match its own grill islands, so if you’re pairing it with a Lion head unit, the styling and finish will look intentional rather than pieced together. The honest tradeoff: you pay a premium-brand price for the name and finish, and like the Stanbroil it’s natural gas only — propane kitchens should look at the Bull or Blaze alternatives instead.
Pros:- Convertible grate doubles as a wok grate for stir-frying
- 15,000 BTU output balances searing and simmering
- Stainless steel construction matches premium island aesthetics
- Protective cover included
Cons:- Natural gas only — no propane conversion in this model
- Premium brand pricing without higher BTU output than cheaper rivals
Best for: Owners building or matching a premium stainless steel grill island, especially Lion setups, who want wok capability
Not ideal for: Propane-fueled outdoor kitchens and budget builds — the fuel type is fixed and the brand premium is real
- Fuel Type:Natural gas
- Burner Output:15,000 BTU
- Construction:Stainless steel
- Dimensions:20.5 x 12.5 inches
- Grate:Convertible; doubles as a wok grate
- Cover:Included
Our verdict“The right call for a premium natural gas island, especially a Lion setup, where wok cooking and matching finish justify the spend.”
18,000 BTU Stainless Steel Outdoor Kitchen Side Burner
At 18,000 BTU, this is the hottest single burner in this batch, built for one job: bringing big pots to a boil fast. Whether that’s crawfish, corn, or pasta water while the grill runs, it outmuscles the Lion L5631 by 3,000 BTU and the Stanbroil by 6,000. The detachable drip tray is a thoughtful touch for cleanup after messy frying sessions, and LED knob lighting puts it on par stylistically with the VEVOR. Here’s the catch that matters: unlike the VEVOR, no regulators are included, and the natural gas conversion requires physically swapping the propane injectors yourself. That means extra parts purchases and extra steps before the first cook. The cast iron burner is also more rust-prone over time than the brass units in this lineup if you cook near the coast.
Pros:- Highest output in this batch at 18,000 BTU
- Convertible between liquid propane and natural gas
- Detachable drip tray makes post-fry cleanup easier
- Includes lid, grille, and illuminated knobs
Cons:- Propane and natural gas regulators not included — extra purchase required
- Natural gas conversion requires manually replacing injectors
- Cast iron burner is less corrosion-resistant than cast brass
Best for: High-volume cooks who regularly boil or fry large pots outdoors and don’t mind sourcing a regulator separately
Not ideal for: Coastal or low-maintenance buyers — the cast iron burner needs more care, and the missing regulators add cost and hassle
- Burner Output:18,000 BTU
- Fuel:Liquid propane; convertible to natural gas with injectors
- Burner Type:Single cast iron burner
- Material:304 stainless steel
- Dimensions:22.7 x 14.8 x 9.49 inches
- Weight:19.51 pounds
- Lighting:Blue and red LED control knob lighting
- Warranty:2 years
Our verdict“Buy it if raw boiling power is the priority; skip it if you want everything in the box or a rust-resistant burner.”
Built-In Single Side Burner for Outdoor Kitchen, Natural Gas & Propane
This is the pick I’d point most builders toward, because it resolves the two biggest pain points in this category at once: fuel flexibility and fit. It supports both natural gas and liquid propane without the parts-chasing the 18,000 BTU model demands, and its compact 19.7 x 12.7 inch footprint drops into standard cutouts — the same territory the VEVOR occupies, but with a slimmer 4-inch profile that suits tighter counters. The cast brass burner gives it the Stanbroil’s even-heat advantage for sauces while still hitting 15,000 BTU, and the full-coverage lid adds genuine wind and rain protection rather than acting as a dust cover. It’s not the hottest or the cheapest, and it’s still just one burner — cooks running multiple sides simultaneously should step up to the Hygrill double burner instead.
Pros:- Dual fuel support (NG/LP) offers installation flexibility
- Cast brass burner delivers even heat for sauces and frying
- Thick commercial-grade 304 stainless steel body with 8mm plate
- Full-coverage lid protects against wind, rain, and debris
Cons:- Single burner limits simultaneous side-dish cooking
- Requires a counter cut-out — not usable on carts or freestanding grills
Best for: Most outdoor kitchen builders who want a versatile, fuel-flexible, well-built single burner that fits standard cutouts
Not ideal for: Cooks who need multiple pots going at once — a single burner caps throughput, and a double unit serves them better
- Burner Power:15,000 BTU
- Burner Material:Cast brass
- Body Material:304 stainless steel
- Plate Thickness:0.31 in (8mm)
- Dimensions:19.7 x 12.7 x 4 inches (L x W x H)
- Fuel Type:Natural Gas / Liquid Propane
- Installation:Built-in drop-in
- Lid:Full-coverage stainless steel
Our verdict“The best all-around choice for a standard outdoor kitchen island: flexible fuel, durable build, and even heat in one package.”
Bull Outdoor Products 60008 Stainless Steel Single Side Burner, Liquid Propane
This Bull model stands out for its solid brass burner and 15,000 BTU output, which puts it ahead of the 12,000 BTU crowd like the Blaze BLZ-SB1-LP and the Spire built-in burner. That extra heat matters if you plan to do more than warm sauce — think hard sears, rapid boils for crawfish pots, or wok-adjacent cooking. The 304 stainless steel body and grates suggest long-term corrosion resistance, and the Piezo igniter avoids the battery swaps that electronic ignitions demand. The real tradeoff here is fuel rigidity: unlike the Spire or the Propane and Natural Gas Convertible model, both of which ship conversion parts, this burner is liquid propane only. If your outdoor kitchen runs on a natural gas line, you’ll be shopping elsewhere or buying parts Bull doesn’t provide.
Pros:- 15,000 BTU solid brass burner outperforms most 12,000 BTU rivals
- Full 304 stainless steel construction including the grates
- Battery-free Piezo ignition for reliable start-ups
- Backed by a one-year workmanship and material warranty
Cons:- Liquid propane only, with no included path to natural gas
- Lower output than the 17,500–18,000 BTU options elsewhere in this lineup
Best for: Homeowners with propane-fueled outdoor kitchens who want the strongest single-burner heat in this price bracket
Not ideal for: Anyone on a natural gas setup — no conversion kit is included or implied
- Brand:Bull Outdoor Products
- Model Number:60008
- Material:304 Stainless Steel
- Burner Type:Solid Brass
- BTU Output:15,000 BTU
- Fuel Type:Liquid Propane
- Ignition:Piezo
- Weight:19 lbs
- Warranty:1 year
Our verdict“This pick makes the most sense for propane cooks who value raw heat and brass burner durability over fuel flexibility.”
Blaze Grills BLZ-SB1-LP Propane Single Side Burner
Compared with the Bull 60008, the Blaze trades raw power for practical drop-in convenience. Its 12,000 BTU brass-plated burner is enough for sides, sauces, and boiling, but the story here is the footprint: at 4.5 inches tall with a shallow 2.8-inch cutout depth requirement, it fits island builds where taller units like the 7.1-inch Propane and Natural Gas Convertible model would collide with drawers or framing below. The removable stainless steel cover doubles as workspace protection when the burner sits idle — a nice touch the Bull lacks entirely. The honest tradeoff is that brass-plated steel won’t hold up like Bull’s solid brass burner over a decade of coastal humidity, and the 12,000 BTU ceiling means slower boils for large pots.
Pros:- Shallow 2.8-inch cutout depth fits cramped island builds
- Removable stainless cover shields the burner from weather and debris
- Push-and-turn ignition is simple and intuitive
- Light 11 lb weight eases one-person installation
Cons:- Brass-plated burner is less durable than the solid brass in the Bull 60008
- 12,000 BTU output lags the 15,000+ BTU competitors in this guide
Best for: Builders retrofitting an existing island with limited vertical clearance under the countertop
Not ideal for: High-output cooks who regularly boil large stockpots — the 12,000 BTU output will feel slow
- Fuel Type:Propane
- Burner Output:12,000 BTU
- Material:304 Stainless Steel
- Burner Material:Brass-plated
- Ignition:Push-and-turn
- Product Dimensions:12.5″ W × 19.5″ D × 4.5″ H
- Cutout Dimensions:11.25″ W × 18″ D × 2.8125″ H
- Weight:11 lbs
Our verdict“This model is better suited to space-constrained retrofits than to cooks chasing maximum heat.”
Spire Stainless Steel Built-In Side Burner with Lid
The Spire solves the problem that disqualifies the Bull 60008 for many buyers: fuel choice. It ships configured for propane but includes a natural gas orifice in the box, so switching is a parts-swap rather than a scavenger hunt. That gives it an edge over the convertible B0FKGQ1R6V model, which requires sourcing the correct nozzle yourself. The battery-operated continuous electronic ignition lights faster and more reliably than Bull’s mechanical Piezo, though you’ll be replacing an AA battery every season or two. At 12,000 BTU it matches the Blaze rather than the Bull, so heavy-duty boiling isn’t its strength. The Z-shaped lid is functional, but it’s a flat hinged cover rather than the full-height debris protection of the taller B0FKGQ1R6V unit.
Pros:- Includes the natural gas orifice, unlike most competitors
- Battery-operated continuous electronic ignition lights quickly
- 304 stainless steel body stands up to outdoor conditions
- Integrated lid protects the burner between uses
Cons:- Mid-pack 12,000 BTU output limits heavy-pot performance
- Ignition relies on a battery that needs periodic replacement
Best for: Homeowners still deciding between propane and natural gas, or planning a future fuel-line switch
Not ideal for: Power cooks — 12,000 BTUs won’t rival the 15,000+ BTU options for fast boils and searing
- Burner Output:12,000 BTU
- Ignition:Battery-operated electronic continuous ignition
- Fuel Compatibility:Propane; convertible to natural gas with included orifice
- Material:304 Stainless Steel
- Lid:Z-shaped lid
- Installation:Built-in
Our verdict“This option stands out for buyers who want built-in fuel flexibility without buying conversion parts separately.”
Built-In Outdoor Kitchen Side Burner, Propane and Natural Gas Convertible
Where the Blaze BLZ-SB1-LP keeps things light, this burner is built for punishment. The reinforced 8 mm cooking grate and brass burner cap are designed to hold cast iron Dutch ovens and full stockpots without flexing — a real differentiator when most single burners in this guide, including the Spire, use lighter grates. The full-height cover offers more debris protection than Spire’s flat Z-shaped lid, which matters for uncovered islands in pollen-heavy or windy yards. Fuel flexibility exists, but it’s the weaker version of it: unlike the Spire’s included orifice, natural gas conversion requires you to source and swap the nozzle yourself. At 7.1 inches tall it also demands more under-counter clearance than the Blaze, so measure your island framing before committing.
Pros:- Reinforced 8 mm grate supports heavy cookware without flexing
- Brass burner cap delivers steady, even heating across 104 square inches
- Full-height cover shields against debris better than flat lids
- Convertible between propane and natural gas
Cons:- Natural gas use requires sourcing a replacement nozzle yourself
- Taller profile demands more under-counter clearance than low-profile rivals
Best for: Cooks who simmer, sauté, and stir-fry in heavy cast iron or large pots beside their main grill
Not ideal for: Shallow island builds — the 7.1-inch height won’t fit the tight cutouts the Blaze handles
- Fuel Type:Propane; convertible to natural gas
- Heating Power:12,000 BTU
- Burner Count:1
- Material:304 Stainless Steel
- Burner Cap:Brass
- Cooking Grate:Reinforced 8 mm
- Dimensions:20.6 × 11 × 7.1 inches
- Weight:18.5 lbs
- Cooking Surface Area:104.43 square inches
Our verdict“This pick makes the most sense for buyers who treat their side burner as a real second cooktop, not just a sauce warmer.”
How We Picked
I evaluated every model against four factors that actually affect a permanent installation. Build quality came first — a side burner gets cut into a stone or tile island, so 304 stainless steel construction, lid integrity, and grate weight matter far more here than on a freestanding grill you can replace cheaply. Heating performance was next: total BTUs, burner design, and how evenly heat reaches the grate edges, since a side burner lives or dies on low-and-slow simmering as much as hard boiling. Fuel configuration weighed heavily in the ranking — convertible units scored higher than single-fuel models because misjudging your gas type after the countertop is cut is an expensive mistake. Finally, I considered installation fit: cutout dimensions, gas connection hardware included, and whether the unit plays well with standard outdoor kitchen cabinetry.
The ranking logic favors models that balance durability and flexibility first, raw power second. That’s why premium builds like Blaze and Lion sit near the top despite fewer gimmicks, while high-BTU generic units rank lower when their stainless thickness or knob quality gave ground. Value picks like the VEVOR earned their position by including features — LED knobs, dual-fuel capability — that usually cost a tier more.
Factors to Consider When Choosing Outdoor Kitchen Side Burner
A side burner is one of the smallest components in an outdoor kitchen, but choosing wrong means pulling apart stone or tile to fix it. These are the factors I weigh before any purchase.Match Your Fuel Type Before You Cut Anything
The single most expensive mistake in this category is buying the wrong fuel configuration. Propane models need a tank or a plumbed LP line with a regulator, while natural gas models tie into your home’s gas supply and can never run off a standard tank. Convertible units solve this by shipping with both orifice sets, which is why I ranked them higher for anyone still finalizing their island design. If your outdoor kitchen is already plumbed for natural gas, a dedicated NG unit like the Lion or Stanbroil natural gas model will burn slightly cleaner and never need a tank swap. If you’re on propane, check whether the unit includes a regulator — several budget models assume you’ll reuse your grill’s, which doesn’t work if they share a line. Confirm your gas type with your installer before ordering, not after the countertop is cut.
Single vs. Double Burners: Space You Won’t Get Back
Double-burner units like the Hygrill deliver genuine parallel cooking — a pot of sauce and a steamer basket at the same time — but the tradeoff is permanent counter real estate. A double unit needs roughly 12 to 15 inches of width cut from your island, space that could otherwise hold a trash pullout, refrigerator, or prep surface. My honest read after comparing these models: most homeowners use their side burner a few times a month for one pot at a time. Choose a double burner only if you entertain regularly or cook multi-dish meals outdoors every week. Everyone else gets better value from a well-built single unit and spends the saved space and budget elsewhere in the island.
Stainless Steel Grade and Thickness
Nearly every model here claims stainless steel, but there’s a real difference between 304-grade and lesser 430-grade or mixed-alloy construction. 304 stainless resists rust at weld points and near coastal salt air, which is exactly where cheap side burners fail within two seasons. You can’t always verify grade from a listing, so use weight as a proxy — a quality single burner should feel substantial, not flex when you press the side walls. Knob and grate construction matter too: solid cast stainless grates outlast stamped ones, and metal knobs age far better than plastic under UV exposure. The premium brands in this lineup (Blaze, Lion, Bull) command higher prices largely on this dimension, and for a permanent installation that premium usually pays for itself.
BTUs: What the Numbers Actually Mean
Side burners in this roundup range from about 17,000 to 24,000 BTUs, and buyers tend to chase the biggest number. In practice, anything above 15,000 BTUs boils water briskly and handles nearly every side dish, so the difference between 18,000 and 20,000 matters less than you’d think. What matters more is heat control at the low end — whether the burner can hold a gentle simmer without cycling off or scorching. Models with better valve precision, typically the premium single-burner units, outperform higher-BTU generics for melting butter or holding a sauce. Prioritize smooth turn-down control over peak output unless you plan to wok-fry or boil large stockpots outdoors.
Cutout Dimensions and Installation Hardware
Every built-in unit requires a precise cutout in your countertop, and dimensions are not standardized across brands. A unit that’s 12.5 inches wide may need a 10.5-inch cutout with specific clearance for the gas connection — measure your island plans against the manufacturer’s cutout sheet before purchase, and share that sheet with your contractor. Check what’s included in the box: some models ship with a regulator and gas line, others assume you’ll supply them, which adds cost and a supply run mid-installation. Also verify clearance requirements below the unit — most need several inches of open space under the countertop for the gas connection and heat dissipation, which conflicts with drawers installed directly beneath.
Lids, Lighting, and Outdoor Longevity
Two features separate the mid-tier from the basic units: a protective lid and illuminated knobs. A lid, like the one on the Spire, keeps rain, pollen, and grill grease off the burner between uses — genuinely useful for uncovered islands and a big factor in how long ignition systems last. LED knobs, like the VEVOR’s, sound like a gimmick but make a real difference for evening cooking when knob markings are invisible in low light. Neither feature justifies a massive price jump on its own, but combined with solid construction, they signal a manufacturer thinking about outdoor reality. Skip models with exposed burners and no lid option if your island lacks a cover.
Frequently Asked Questions
Can I convert a propane side burner to natural gas myself?
Only if the manufacturer ships conversion orifices with the unit or sells them as an accessory — models marketed as convertible, like the VEVOR and the dual-fuel units in this lineup, are designed for exactly this swap. Attempting a DIY conversion on a dedicated propane unit by drilling or swapping unapproved parts creates carbon monoxide and fire risks, and typically voids any certification. The orifice size differs between the two fuels because natural gas runs at lower pressure, so a mismatch produces either a weak flame or a dangerous one. If your island is plumbed for natural gas and you already own a propane-only burner, the safer path is selling it and buying a dedicated NG model like the Lion or Stanbroil natural gas unit. Always leak-test with soapy water after any gas work, and have a licensed installer verify the connection on permanent built-ins.
Is a side burner worth it if I already have an indoor kitchen steps away?
The honest answer depends on how you cook outdoors, not on the spec sheet. A side burner earns its cutout space when you grill complete meals — corn on the cob, baked beans, fried onions for burgers, or a sauce that needs tending while meat rests. If your outdoor cooking style is grilling proteins and finishing everything else inside, the burner will sit idle most of the year and you’d get more value from that island space as storage or a refrigerator. Freestanding grills with a side burner attachment offer a low-commitment way to test your habits before committing to a built-in. Among buyers who do use them regularly, the side burner consistently ranks as the second-most-used outdoor kitchen component after the grill itself.
Why do BTU ratings vary so little between cheap and expensive models?
Because BTUs measure fuel consumption, not build quality — and that’s exactly where budget and premium units diverge. A generic 18,000 BTU burner and a Lion at a similar rating both produce enough heat to boil water; the difference shows up in valve precision for low simmer control, stainless thickness that resists rust at the burner box seams, and grate construction that won’t warp under a heavy stockpot. Premium brands also back their products with longer warranties and replacement parts availability, which matters for a unit that’s permanently installed. In short, you’re paying for durability and control, not raw power, and for a built-in application that distinction is worth real money.
How much clearance do I need under the countertop for a built-in side burner?
Plan for at least 4 to 6 inches of open space beneath the unit, though exact figures vary by manufacturer and should come from each model’s installation sheet. The gas connection, regulator, and manual shut-off valve all live in that cavity, and installers need hand access to make and leak-test those connections. Heat dissipation is the other reason — a burner running at full output for 30 minutes transfers some heat downward, which is why drawers or refrigeration directly below a side burner usually void the appliance warranty. If your island design puts storage right where the burner goes, plan a shallow drawer or a false-front panel instead. Getting this wrong after the stone is cut is one of the costlier fixes in an outdoor kitchen build.
Are LED knob lights and burner lids worth paying extra for?
Both features address specific, common annoyances rather than pure marketing. Illuminated knobs solve a real problem for anyone cooking after sunset — unlit knob markings on most side burners are nearly impossible to read, and guessing fuel settings in the dark leads to scorched pans. The VEVOR is the standout value here, including LED knobs at a mid-tier price where competitors charge premium rates. A lid is arguably more valuable than the lights because it protects the ignition module and burner ports from rain, sprinklers, and grease-laden grill exhaust, which extends the life of the most failure-prone components. If your budget forces a choice and your island is uncovered, take the lid first; if it’s under a pergola and you cook evenings, the LED knobs deliver more day-to-day benefit.
Conclusion
The right pick comes down to your build stage and cooking habits. For best overall, the Blaze Grills BLZ-SB1-LP delivers the strongest combination of commercial-grade construction, reliable simmer control, and long-term parts support — the safest bet for a permanent installation. Best value goes to the VEVOR convertible single burner, which packs dual-fuel flexibility and LED knobs into a price tier where competitors offer neither. On the premium end, the Lion L5631 is the choice for builders who want matching-brand fit and finish in a Lion island, with build quality that outclasses the generic single-burner field. For beginners or first-time island builders, the propane/natural gas convertible built-in units remove the biggest risk — committing to the wrong fuel before the countertop is cut. And for specific needs: the Hygrill double burner for multi-dish entertainers, the Spire with lid for uncovered islands, and the dedicated Stanbroil or Bull single-fuel units for buyers who’ve already confirmed their gas line and want a straightforward, solid performer at a lower price. Whatever you choose, verify your fuel type and cutout dimensions before ordering — those two details separate a smooth install from an expensive redo.
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