6 Best Alternatives to the Onlyfire Grills 40" 5-Burner Built-In Grill (2026)
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The onlyfire grills 40 5 burner built in grill alternatives list helps you find a match for your outdoor kitchen. This model offers 80,000 BTU of heat and 885 square inches of cooking space. It uses natural gas and features a 304 stainless steel build. The unit weighs 175 pounds and requires a specific cutout size. These specs make it a strong choice for large gatherings and rotisserie cooking. However, you might need a different configuration for your specific space. You may prefer a different fuel type or a smaller footprint. Some buyers want more burners or a flat-top griddle surface instead. Others need a unit that fits a narrower island or weighs less. We selected alternatives based on overlapping specifications. These options share key traits like built-in form factors and natural gas compatibility. They provide varied dimensions and heat outputs to suit different layouts. You can compare the width, height, and cooking area to find the best fit. This guide covers 6 products that align with your core requirements.
Our top pick: Onlyfire 40" 5-Burner Natural Gas Grill.
Comparing grill specs and features
Flintex 6-Burner Built-In Gas Grill
The Flintex 6-Burner Built-In Gas Grill offers more cooking capacity than the Onlyfire model. It provides six burners instead of four, targeting larger gatherings. The total width is 45.3 inches, which is wider than the Onlyfire 39-inch unit. It weighs 139 pounds, making it lighter than the 175-pound Onlyfire grill. This model suits buyers who need extra burner control for complex outdoor meals. You give up the specific rotisserie burner found in the Onlyfire. However, the additional burner count allows for more versatile zone cooking. The built-in form factor remains consistent with standard outdoor kitchen installations. Choose this if you prioritize burner quantity over rotisserie functionality.
Stanbroil 36-Inch Built-In Natural Gas Griddle
The Stanbroil 36-Inch Built-In Natural Gas Griddle shifts your cooking method entirely. It replaces grill grates with a flat-top surface for searing and smashing. The dimensions are 36 inches long by 25.7 inches wide. This is narrower than the Onlyfire 39-inch width but offers a different cooking style. It weighs no data is provided, so you must check installation weight limits. This unit is ideal for breakfast items or stir-fries that do not fit on grates. You lose the ability to grill steaks with traditional char marks. The natural gas fuel type matches the Onlyfire setup. Select this if you want a dedicated flat-top surface in your island rather than a traditional grill.
Stanbroil Hygrill XTR 25-Inch Built-In Gas Grill
The Stanbroil Hygrill XTR 25-Inch Built-In Gas Grill is a compact alternative for smaller spaces. It measures 26.5 inches wide, significantly narrower than the Onlyfire 39-inch model. It features three burners instead of four, reducing total heat output. The height is 20.5 inches, similar to the Onlyfire 21-inch profile. This model fits buyers with limited countertop space in their outdoor kitchen. You sacrifice cooking width and one burner compared to the Onlyfire. The stainless steel construction ensures durability in outdoor conditions. The natural gas connection works with existing lines. Pick this if you need a high-heat solution that fits a tighter footprint than the larger Onlyfire unit.
Weber Genesis E-415 Natural Gas Grill
The Weber Genesis E-415 Natural Gas Grill is a freestanding unit, not built-in. It measures 64.5 inches wide and 48.1 inches high, making it much larger than the Onlyfire. This model requires a different installation approach since it does not fit into a countertop cutout. It offers substantial cooking space and reliable heat distribution for serious cooks. You give up the seamless built-in look of the Onlyfire grill. The freestanding design provides stability without custom cabinetry. Natural gas compatibility remains a key feature for this model. Choose the Weber if you have a large patio area and prefer a standalone appliance over an integrated kitchen island component.
Bull 30-Inch Angus Built-In Natural Gas Grill
The Bull 30-Inch Angus Built-In Natural Gas Grill uses heavy-duty 304 stainless steel construction. It is narrower at 25.3 inches wide compared to the Onlyfire 39-inch width. This model focuses on durability and rotisserie cooking capabilities. The height is 21.3 inches, matching the Onlyfire profile closely. It suits buyers who prioritize material quality over maximum cooking surface area. You lose the larger cooking space and four-burner setup of the Onlyfire. The smaller footprint makes it easier to install in standard 30-inch openings. Natural gas fuel type ensures compatibility with existing gas lines. Select this if you want a robust, durable grill in a smaller size rather than the expansive Onlyfire model.
Stanbroil Hygrill STD 25-Inch Built-In Natural Gas Grill
The Stanbroil Hygrill STD 25-Inch Built-In Natural Gas Grill is another compact option. It shares similar dimensions with the Hygrill XTR, measuring 26.5 inches wide. It features three burners, offering less power than the Onlyfire four-burner system. The height is 20.5 inches, fitting standard countertop heights. This model is designed for small outdoor kitchens with limited space. You give up the extra burner and larger cooking area of the Onlyfire. The stainless steel build provides rust resistance for long-term use. Natural gas fuel connects to standard outdoor lines. Choose this if you need a reliable, efficient grill for a tight space where the Onlyfire would not fit.
Quick picks
Our 7 picks
Onlyfire 40" 5-Burner Natural Gas Grill
Best for: large family meals and rotisserie cooking
- Fuel Type
- Natural Gas
- Cooking Area
- 885 sq. in.
- Heat Output
- 80,000 BTU
- Burner Count
- 4
- Form Factor
- Built-in
- Primary Material
- 304 stainless steel
View on Amazon: Onlyfire 40" 5-Burner Natural Gas Grill Affiliate link
This built-in grill offers 885 square inches of cooking space, powered by four 14,000 BTU main burners and a 10,000 BTU rear infrared rotisserie burner. The 304 stainless steel construction resists rust and warping. It requires a 38 3/8-inch wide cutout. The heavy lid includes a built-in thermometer. This unit suits those needing high heat output and rotisserie capability in a standard outdoor kitchen setup.
Pros
- 885 square inches of total cooking area
- 304 stainless steel body, burners, and grates
- 10,000 BTU rear infrared rotisserie burner
- H-burners ensure even heat distribution
Cons
- No side burners listed in specifications
- No electronic ignition system mentioned
- Heavyweight at 175 pounds
Good fit if
- You need a large cooking surface for gatherings
- You want rotisserie functionality for whole meats
- You have a 38 3/8-inch wide cutout available
Skip if
- You prefer propane fuel over natural gas
- You require side burners for sauces
- You have limited counter space below 39 inches
Verdict: Onlyfire Grills 40" 5-Burner Natural Gas Grill delivers substantial cooking power and rotisserie versatility. It fits well in outdoor kitchens with the correct cutout dimensions and a preference for natural gas.
Flintex 6-Burner Built-In Gas Grill
Best for: large gatherings and custom outdoor kitchens
- Fuel Type
- Propane and Natural Gas
- Cooking Area
- 860 sq.in.
- Heat Output
- 60,000 BTU
- Burner Count
- 6
- Form Factor
- Built-in
- Placement
- Outdoor
View on Amazon: Flintex 6-Burner Built-In Gas Grill Affiliate link
The Flintex 6-Burner Built-In Grill offers 860 square inches of cooking space with 60,000 BTU of heat. It fits cutouts between 40.5 and 42.8 inches wide. The unit includes a porcelain-enameled firebox and cast iron grates. It works with natural gas or propane. This setup suits large outdoor kitchens needing high capacity and versatile cooking options for groups.
Pros
- 860 square inches of total cooking area
- 60,000 BTU heat output from six burners
- Porcelain-enameled firebox resists rust and corrosion
- Includes a bonus griddle for versatile cooking
Cons
- Natural gas connector ships separately
- Rotisserie kit is not included
- Heavy build at 139 pounds
Good fit if
- You need a large cooking surface for groups
- You want a built-in unit for custom countertops
- You prefer porcelain-enameled surfaces for easy cleaning
Skip if
- You require a pre-installed natural gas connector
- You need a rotisserie kit included in the box
- You have a cutout width under 40.5 inches
Verdict: Flintex 6-Burner Built-In Grill delivers high capacity and robust heat for serious outdoor cooking. It fits buyers who prioritize large grilling space and durable materials over included accessories.
Stanbroil 36-Inch Built-In Natural Gas Griddle
Best for: flat-top outdoor cooking
- Fuel Type
- Natural gas
- Cooking Area
- 540 sq. in.
- Heat Output
- 42,000 BTU
- Burner Count
- 3
- Form Factor
- Built-in
- Primary Material
- 304 stainless steel
View on Amazon: Stanbroil 36-Inch Built-In Natural Gas Griddle Affiliate link
This is a 36-inch built-in natural gas griddle with a 540-square-inch cooking surface. It uses three 14,000 BTU burners for a total of 42,000 BTU. The unit is made from 304 stainless steel and includes a removable grease tray. You get precise heat control for outdoor cooking. It fits standard outdoor kitchen cutouts.
Pros
- 540 sq. in. cooking area
- 42,000 BTU total output
- 304 stainless steel construction
- 3 independent burners
Cons
- Natural gas only
- No side shelves included
- Limited to griddle use
Good fit if
- You want high heat output
- You have a built-in space
- You cook flat items
Skip if
- You need propane
- You want a grill
- You need portability
Verdict: Stanbroil 36-Inch Natural Gas Griddle offers strong heat for flat-top cooking. It suits those with natural gas lines and built-in islands.
Stanbroil Hygrill XTR 25-Inch Built-In Gas Grill
Best for: smaller outdoor kitchen islands
- Fuel Type
- Natural Gas
- Cooking Area
- 577sq in
- Heat Output
- 42,000 BTU
- Burner Count
- 3
- Form Factor
- Built In
- Primary Material
- 304-grade stainless steel
View on Amazon: Stanbroil Hygrill XTR 25-Inch Built-In Gas Grill Affiliate link
The Stanbroil XTR is a 25-inch built-in grill with 577 square inches of cooking space and 42,000 BTU of heat output. It uses 304-grade stainless steel for durability. The unit includes a built-in thermometer and comes with a conversion kit. It fits standard outdoor kitchen cutouts. This grill suits those who want a compact, high-heat option for smaller islands.
Pros
- 577 square inches of total cooking surface
- 42,000 BTU total heat output
- 304-grade stainless steel construction
- Includes natural gas conversion kit
Cons
- Only three burners compared to five-burner competitors
- Smaller 25-inch width than standard 36-40 inch units
- No infrared or side burner specifications listed
Good fit if
- You need a compact grill for a smaller island cutout
- You prefer natural gas for constant fuel supply
Skip if
- You require more than 577 square inches of cooking space
- You need a wider grill for large gatherings
Verdict: Stanbroil 25-Inch 3-Burner Natural Gas Grill is a compact, high-heat solution for smaller outdoor kitchens. It fits buyers who prioritize stainless steel durability and efficient gas use over maximum cooking width.
Weber Genesis E-415 Natural Gas Grill
Best for: spacious outdoor kitchens with natural gas
- Fuel Type
- Natural Gas
- Burner Count
- 4
- Placement
- Outdoor
- Material
- Stainless Steel
- Features
- Cast Iron Grates
- Dimensions
- 27 × 64.5 × 48.1 inches
View on Amazon: Weber Genesis E-415 Natural Gas Grill Affiliate link
The Weber Genesis E-415 is a 64.5-inch natural gas grill designed for outdoor kitchens. It features PureBlu burners for even heat and porcelain-enameled cast-iron grates for searing. The unit includes a grease management system and a warming rack. Its substantial footprint requires adequate space. This grill suits users who want durable construction and consistent performance from a trusted brand.
Pros
- PureBlu burners with tapered design for consistent flame
- Porcelain-enameled cast-iron grates retain heat for searing
- Pull-out grease tray for easy cleanup
- FLAVORIZER Bars vaporize juices and prevent flare-ups
- Includes a warming rack for holding food
Cons
- Large 64.5-inch width requires significant counter space
- Factory built for natural gas only, limiting fuel flexibility
- Heavier build compared to lighter portable options
Good fit if
- You have a large outdoor kitchen space
- You prefer natural gas over propane
- You want durable cast-iron cooking grates
Skip if
- You need a compact grill for small patios
- You want a propane-only unit
- You require a budget-friendly alternative
Verdict: Weber Genesis E-415 Natural Gas Grill delivers reliable heat distribution and durable materials for serious outdoor cooks. It fits well in spacious kitchens where natural gas is already installed.
Bull 30-Inch Angus Built-In Natural Gas Grill
Best for: durable stainless steel construction and rotisserie use
- Fuel Type
- Natural Gas
- Cooking Area
- 810 Square inches
- Heat Output
- 75,000 BTUs
- Burner Count
- 4
- Form Factor
- Built-In
- Primary Material
- 14 Gauge 304 Stainless Steel
View on Amazon: Bull 30-Inch Angus Built-In Natural Gas Grill Affiliate link
The Bull Angus 30-inch built-in grill uses 14-gauge 304 stainless steel for durable construction. It delivers 75,000 BTUs across four cast stainless burners. You get 810 square inches of total cooking space, including a 210-square-inch warming rack. This model includes a rear infrared burner and a rotisserie spit. It suits those who want heavy-duty materials and high heat output in a single unit.
Pros
- 14-gauge 304 stainless steel construction
- 75,000 BTU total heat output
- 810 square inches of cooking area
- Includes rotisserie and infrared burner
Cons
- Fewer burners than five-burner competitors
- Smaller width than 36-inch options
- No electronic ignition system listed
Good fit if
- You prefer durable 304 stainless steel
- You want a rotisserie included
- You need a 30-inch built-in unit
Skip if
- You require five burners
- You need electronic ignition
- You want a wider cooking surface
Verdict: The Bull Angus 30-Inch Built-In Grill fits buyers who prioritize heavy-duty 304 stainless steel and rotisserie cooking over maximum burner count. It is a solid choice for those who want high heat in a standard 30-inch footprint.
Stanbroil Hygrill STD 25-Inch Built-In Natural Gas Grill
Best for: Small outdoor kitchens needing efficient searing
- Fuel Type
- Natural Gas
- Cooking Area
- 558 sq inches
- Heat Output
- 42,000 BTU
- Burner Count
- 3
- Form Factor
- Built-in
- Primary Material
- 304-grade stainless steel
View on Amazon: Stanbroil Hygrill STD 25-Inch Built-In Natural Gas Grill Affiliate link
This Stanbroil STD series grill offers 558 square inches of cooking space powered by 42,000 BTUs across three stainless steel tube burners. It is designed for built-in installation with a cutout size of 23 1/4 inches wide. The unit is constructed from 304-grade stainless steel for durability. It comes fully assembled, requiring only the placement of cooking grates. This model suits those needing a compact, efficient heat source for smaller outdoor kitchens.
Pros
- 304-grade stainless steel construction resists weather and corrosion.
- 42,000 BTU output provides efficient searing and cooking.
- Comes fully assembled except for grates for easy installation.
- Includes all necessary accessories to hook up to your gas source.
Cons
- Smaller 558-square-inch cooking area compared to larger alternatives.
- Only three burners limit simultaneous cooking zones.
- Requires a specific 23 1/4-inch cutout, limiting cabinet compatibility.
Good fit if
- You have limited counter space in your outdoor kitchen.
- You prefer a fully assembled unit for quick setup.
- You need a dedicated natural gas grill for searing.
Skip if
- You require more than 558 square inches of cooking space.
- You need four or more burners for large gatherings.
- Your cabinet cutout is wider than 23 1/4 inches.
Verdict: Stanbroil STD 3-Burner 25-Inch Grill is a compact, durable option for small kitchens. It fits buyers who prioritize easy installation and efficient heat in a limited footprint.
Specifications side by side
| Spec | Onlyfire 40" 5-Burner Natural Gas Grill | Flintex 6-Burner Built-In Gas Grill | Stanbroil 36-Inch Built-In Natural Gas Griddle | Stanbroil Hygrill XTR 25-Inch Built-In Gas Grill | Weber Genesis E-415 Natural Gas Grill | Bull 30-Inch Angus Built-In Natural Gas Grill | Stanbroil Hygrill STD 25-Inch Built-In Natural Gas Grill |
|---|---|---|---|---|---|---|---|
| Fuel Type | Natural Gas | Propane and Natural Gas | Natural gas | Natural Gas | Natural Gas | Natural Gas | Natural Gas |
| Cooking Area | 885 sq. in. | 860 sq.in. | 540 sq. in. | 577sq in | not stated | 810 Square inches | 558 sq inches |
| Heat Output | 80,000 BTU | 60,000 BTU | 42,000 BTU | 42,000 BTU | not stated | 75,000 BTUs | 42,000 BTU |
| Burner Count | 4 | 6 | 3 | 3 | 4 | 4 | 3 |
| Form Factor | Built-in | Built-in | Built-in | Built In | not stated | Built-In | Built-in |
| Primary Material | 304 stainless steel | not stated | 304 stainless steel | 304-grade stainless steel | not stated | 14 Gauge 304 Stainless Steel | 304-grade stainless steel |
| Placement | Outdoor | Outdoor | Outdoor | Outdoor | Outdoor | not stated | Outdoor |
| Material | Stainless Steel | not stated | Stainless Steel | Stainless Steel | Stainless Steel | Stainless Steel | Stainless Steel |
| Features | not stated | not stated | not stated | not stated | Cast Iron Grates | not stated | not stated |
| Compatible Appliance | not stated | Griddle | Griddle | not stated | not stated | not stated | not stated |
| Heating Method | Infrared | not stated | not stated | not stated | not stated | not stated | not stated |
| Dimensions | 26 × 39 × 21 inches | 16.6 × 45.3 × 11 inches | 36 × 25.7 × 13 inches | 21.5 × 26.5 × 20.5 inches | 27 × 64.5 × 48.1 inches | 31 × 25.3 × 21.3 inches | 21.5 × 26.5 × 20.5 inches |
| Weight | 175 pounds | 139 pounds | not stated | not stated | not stated | 2.57 ounces | not stated |
| Size | 40" NATURAL GAS | 6-Burner | 36 x 25.7 x 13 inches | 26.5"W x 21.5"D x 20.5"H | 64.5 inches (W) x 27 inches (L) x 48.1 inches (H) | 30" Angus Single Unit | not stated |
| Color | Silver | not stated | Silver | Silver | Black | Metallic | Silver |
| Model | GS377 | RUSDI6 | Z059-NG-36-SS | X001-NG-3-SS | 1500368 | 47629 | X002-NG-3-SS |
Frequently asked questions
Which grill is best for large family meals?
The Onlyfire 40-inch 5-Burner Natural Gas Grill is the top choice for large family gatherings. It offers substantial cooking power and rotisserie versatility. Its 39-inch width and 175-pound weight provide a stable, high-capacity surface. This model fits well in outdoor kitchens where natural gas is available and you need space for multiple dishes at once.
What is the most affordable built-in option?
The Flintex 6-Burner Built-In Gas Grill is the best budget-friendly alternative. It provides high capacity and robust heat for serious outdoor cooking. With a width of 45.3 inches, it offers more grilling space than the Onlyfire model. It prioritizes durable materials and large cooking areas over included accessories, making it ideal for large gatherings.
Is there a built-in griddle alternative?
Yes, the Stanbroil 36-Inch Built-In Natural Gas Griddle is a premium flat-top option. It delivers strong heat for searing and flat-top cooking. Measuring 36 inches in length and 25.7 inches in width, it suits those with natural gas lines. This unit is designed for built-in islands and offers a different cooking surface compared to traditional grill grates.
Which grill fits smaller outdoor kitchen islands?
The Stanbroil Hygrill XTR 25-Inch Built-In Gas Grill is designed for smaller spaces. It is a compact, high-heat solution with a width of 26.5 inches. This 3-burner model fits buyers who prioritize stainless steel durability and efficient gas use over maximum cooking width. It is an efficient choice for limited footprints in outdoor kitchens.
Does Weber offer a built-in natural gas grill?
The Weber Genesis E-415 Natural Gas Grill is a reliable option for spacious kitchens. It delivers consistent heat distribution and durable materials. With a width of 64.5 inches, it is significantly larger than the Onlyfire 39-inch unit. This model fits well in expansive outdoor kitchens where natural gas is already installed and maximum cooking space is required.
Which grill uses heavy-duty stainless steel?
The Bull 30-Inch Angus Built-In Natural Gas Grill is highlighted for its durable construction. It features heavy-duty 304 stainless steel, appealing to buyers who prioritize longevity over burner count. It offers high heat in a standard 30-inch footprint. This grill is also suitable for rotisserie cooking, making it a solid choice for those seeking robust build quality.
What is the best compact 3-burner grill?
The Stanbroil Hygrill STD 25-Inch Built-In Natural Gas Grill is a compact, durable option. It provides efficient searing power in a small footprint. With a width of 26.5 inches, it fits easily into tight spaces. This model is ideal for small outdoor kitchens where buyers prioritize easy installation and efficient heat output over large cooking surfaces.