Real Backyard Grill. Polished Enough to Make the Whole Patio Look Better.
Four Dual-Tube burners, 695 sq. in. of total cooking space, and stainless steel everywhere you look — this is the grill that upgrades your outdoor setup without sending you down a custom-kitchen rabbit hole.
The Broil King Regal S 420 Pro puts 50,000 BTUs across four stainless steel Dual-Tube burners, giving you the even, wall-to-wall heat that separates a real sear from a gray steam. Solid 9 mm stainless steel cooking grids hold temperature like cast iron but clean up in seconds, and the Flav-R-Wave cooking system turns drippings into smoke that circles back into your food instead of flaring up and burning it. Linear-Flow valves with 180° Sensi-Touch control let you dial heat precisely, Sure-Lite electronic ignition means a confident first click every time, and the Accu-Temp thermometer keeps you honest. An enclosed cabinet base, stainless side shelves, and illuminated control knobs give this grill a finished, intentional look that holds its own on any patio.
Why the Regal S 420 Pro Stands Out
Four key numbers that explain why this grill earns a permanent spot on your patio.
Swipe to see all features
50,000
BTU Main Burners
Four Dual-Tube burners deliver even, high-output heat across the full cooking surface — no cold spots, no hot corners.
695 sq. in.
Total Cooking Space
500 sq. in. of primary cooking space plus a stainless warming rack — enough room to cook the main and keep sides hot at the same time.
9 mm
Stainless Cooking Grids
Solid 9 mm stainless steel grids hold heat the way cast iron does — heavy, durable, and built to put real sear marks on real food.
180°
Sensi-Touch Control
Linear-Flow valves with 180° rotation give you precise low-to-high control — the difference between a perfect reverse sear and a guessing game.
What's Included in the Box
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Broil King Regal S 420 Pro Grill Unit
- 4 stainless steel Dual-Tube main burners
- Solid 9 mm stainless steel cooking grids
- Stainless steel Flav-R-Wave cooking system
- Stainless steel warming rack
- Stainless steel side shelves (2)
- Linear-Flow valves with 180° Sensi-Touch control
- Sure-Lite electronic dual-electrode ignition system
- Deluxe Accu-Temp thermometer
- Illuminated control knobs
- Enclosed cabinet base
Rotisserie kit, grill cover, and side burner are not included — sold separately.
Deep Dive — Regal S 420 Pro Features
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Strong four-burner performance for everyday outdoor cooking
With four stainless steel Dual-Tube burners producing 50,000 BTUs, the Regal S 420 Pro is engineered for even heat delivery and dependable grilling performance across a generous main cooking surface. It is well suited to buyers who want stronger backyard capability without moving into a more complex island or specialty grill configuration.
Premium stainless steel grilling surfaces and flavor-focused design
Solid 9 mm stainless steel cooking grids provide durable heat retention with a more substantial feel than standard grill grates, while the stainless steel Flav-R-Wave cooking system helps vaporize drippings and return richer barbecue flavor to the food. Combined with the stainless steel warming rack, these features support a more polished and more capable cooking experience.
Precision control and premium user-facing features
The Regal S 420 Pro includes Linear-Flow valves with 180° Sensi-Touch control, Sure-Lite electronic dual-electrode ignition, and a deluxe Accu-Temp thermometer to help create a more controlled and more user-friendly grilling experience. These features make it a compelling option for homeowners who want premium convenience along with Broil King's signature cooking performance.
Refined freestanding design for a cleaner patio presentation
Stainless steel side shelves, illuminated control knobs, and an enclosed cabinet base give the Regal S 420 Pro a cleaner, more finished appearance while preserving the flexibility of a freestanding layout. For homeowners building a more complete outdoor cooking setup, it offers a practical mix of premium materials, useful workspace, and everyday grilling strength.
Broil King Regal S 420 Pro Features & Benefits
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4 stainless steel Dual-Tube burners: Delivers 50,000 BTUs of dependable grilling power for even heat distribution.
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500 sq. in. primary cooking space: Gives you practical room for everyday grilling, weekend meals, and small-group entertaining.
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695 sq. in. total cooking space: Adds more usable capacity with the stainless steel warming rack included.
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Solid 9 mm stainless steel cooking grids: Provides premium durability and strong heat retention with minimal maintenance.
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Stainless steel Flav-R-Wave cooking system: Helps vaporize drippings to enhance barbecue flavor while maintaining even heat.
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Linear-Flow valves and Sure-Lite ignition: Supports more precise control and easier startup during everyday use.
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Deluxe Accu-Temp thermometer: Helps monitor grill performance more confidently while cooking.
Who It's For — The Deck & Den Take
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This grill is for the person who cooks outside regularly and is done fussing with cheap hardware. Not a weekend hobbyist who grills twice a summer — someone who is actually out there on Tuesday nights and wants a setup that behaves like a professional piece of equipment without requiring a contractor to install it.
If you're comparing this to a basic box-store four-burner, the difference you'll feel immediately is the 9 mm grids and the Flav-R-Wave system. The grids hold heat like cast iron and clean up faster. The Flav-R-Wave actually uses your drippings for flavor instead of letting them flare up on a bare burner. These aren't marketing claims — they change how the food comes off the grill.
Who might want to look elsewhere: if you want a side burner, a rotisserie, or a built-in configuration for a future outdoor kitchen, you'll want to step up to a different model. The Regal S 420 Pro is a freestanding grill — excellent at what it does, but it doesn't expand into a built-in setup.
One tip most buyers don't ask about: the Linear-Flow valves have a much wider range of control than the knobs on a standard grill. Use the lower third of the dial more than you think you should. The Flav-R-Wave system works best when you're not cranking heat — it does its best flavor work in the 375–450°F range where drippings vaporize without burning off instantly.
- Homeowners who grill regularly and want a significant upgrade from entry-level equipment
- Buyers who want premium stainless steel finish quality without a built-in installation project
- Cooks who care about even heat distribution and real barbecue flavor, not just BTU numbers
- Anyone replacing a worn-out freestanding grill and ready to move up to a more serious build
- Patio setups where a clean, finished look matters as much as cooking performance
- Buyers who want propane or natural gas flexibility without buying a separate conversion kit
Full Specifications & Dimensions
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Broil King Regal S 420 Pro Specifications
| Brand |
Broil King |
| Model |
Regal S 420 Pro |
| Collection |
Regal S Series |
| Item Numbers |
138-956314-LP (LP), 138-956317-NG (NG) |
| Model Numbers |
956314 (LP), 956317 (NG) |
| Fuel Type |
Propane Gas or Natural Gas |
| Main Burners |
4 stainless steel Dual-Tube burners |
| Main Burner Output |
50,000 BTU |
| Primary Cooking Space |
500 sq. in. |
| Total Cooking Space |
695 sq. in. |
| Cooking Grids |
Solid 9 mm stainless steel cooking grids |
| Warming Rack |
Stainless steel |
| Cooking System |
Stainless steel Flav-R-Wave cooking system |
| Valves |
Linear-Flow valves with 180° Sensi-Touch control |
| Ignition |
Sure-Lite electronic dual-electrode ignition system |
| Thermometer |
Deluxe Accu-Temp thermometer |
| Side Shelves |
Stainless steel |
| Control Knobs |
Illuminated |
| Base |
Enclosed cabinet base |
| Weight |
178 lbs. (LP) / 182 lbs. (NG) |
| Assembled Dimensions |
56.3" W x 24.8" D x 49.2" H |
Still deciding? Explore Deck and Den's buying guides hub and start with a grill buying guide to compare premium freestanding grills, stainless steel features, and fuel options.
Warranty, Shipping & Returns
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Manufacturer Warranty
- Covered by Broil King's Limited Lifetime cookbox and 15-year remaining parts and paint warranty, honored directly by the manufacturer.
- Warranty applies only to products operated in the country where purchased.
Deck & Den Store Policies
Manuals & Documents
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Frequently Asked Questions
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How many BTUs does the Regal S 420 Pro produce?►
The Regal S 420 Pro has four stainless steel Dual-Tube main burners producing a combined 50,000 BTUs. There is no side burner or rear rotisserie burner on this model.
What is the total cooking space on the Regal S 420 Pro?►
The Regal S 420 Pro offers 500 sq. in. of primary cooking space and 695 sq. in. of total cooking space when including the stainless steel warming rack.
Does the Regal S 420 Pro come in natural gas as well as propane?►
Yes. The Regal S 420 Pro is available in both propane (LP, model 956314, item 138-956314-LP) and natural gas (NG, model 956317, item 138-956317-NG). Make sure you select the correct fuel version for your setup at the time of purchase — they are separate SKUs and are not interchangeable without a conversion kit.
What are the assembled dimensions of the Regal S 420 Pro?►
Assembled dimensions are 56.3" W x 24.8" D x 49.2" H. Weight is 178 lbs. (LP) or 182 lbs. (NG). These dimensions include the side shelves; plan your patio space accordingly and allow clearance per your local code requirements.
What are the 9 mm stainless steel cooking grids, and why do they matter?►
The solid 9 mm stainless steel cooking grids are significantly thicker and heavier than the rod grids found on most grills in this price range. Thicker grids retain heat more effectively, recover temperature faster after you set food down, and produce better sear marks. They also resist warping over time better than thinner alternatives.
How does the Flav-R-Wave cooking system work?►
The Flav-R-Wave system sits between the burners and the cooking grids. It is designed to vaporize drippings — turning fat and juices into smoke that circulates back up around the food rather than dripping onto the burner and causing flare-ups. The result is more barbecue flavor and more even heat distribution across the cooking surface.
What ignition system does the Regal S 420 Pro use?►
The Regal S 420 Pro uses Sure-Lite electronic dual-electrode ignition. This system provides reliable spark ignition at each burner individually without requiring a battery in a separate igniter — standard push-to-ignite operation.
Does the Regal S 420 Pro include a rotisserie kit or side burner?►
No. The Regal S 420 Pro does not include a rotisserie kit or a side burner — those are sold separately. If a rotisserie or infrared side burner is important to your setup, check the higher Regal or Imperial models that include these features.
Can this grill be used as a built-in for an outdoor kitchen island?►
No. The Regal S 420 Pro is a freestanding grill — it is not a built-in model and does not have cutout dimensions for island installation. If you are planning an outdoor kitchen island, Broil King offers dedicated built-in models in the Imperial and Regal Built-in series designed for that purpose.
What warranty covers the Broil King Regal S 420 Pro?►
The Regal S 420 Pro is covered by Broil King's manufacturer warranty, honored directly by Broil King. The official product page specifies a Limited Lifetime cookbox warranty and a 15-year warranty on remaining parts and paint; labor, removal or reinstallation, service-call, shipping, and transportation costs are not covered. Warranty applies only to products purchased and used in the country of purchase.
Does the grill require assembly, and how difficult is it?►
Yes, some assembly is required. Broil King provides an Assembly Manual specific to the Regal S 420 Pro — the LP version is linked in the Manuals & Documents section above. Most buyers can complete assembly with basic tools in roughly 60–90 minutes. Broil King documentation does not provide an official assembly-time estimate; actual assembly time may vary.
How does Deck & Den ship this grill, and how long does delivery take?►
Deck & Den offers free shipping on orders over $100 within the contiguous United States. Delivery timelines vary by carrier and location. For specific lead time questions, contact us before ordering — details are available on our shipping policy page.
How does the Regal S 420 Pro compare to other freestanding BBQ grills in this price range?►
The Regal S 420 Pro stands out in its price range primarily due to the 9 mm stainless steel cooking grids, the Flav-R-Wave flavor system, and the Linear-Flow valve precision control — features more commonly found on higher-priced grills. The enclosed cabinet base and illuminated knobs also give it a more finished appearance than most competitors at this level. It does not include a rotisserie or side burner, which some buyers at this tier may want — that is the main trade-off to evaluate.
