Broil King Imperial S 590iG – Premium Outdoor Kitchen Grill Island
Five Dual-Tube burners, a rear rotisserie setup, and a fully finished 304 stainless steel island — premium outdoor kitchen performance without a connected control system in the way.
The Imperial S 590iG is built for homeowners who want a finished outdoor kitchen island that performs — not one that requires a control system between you and the food. Five stainless steel Dual-Tube burners deliver 55,000 BTU across 625 sq. in. of primary cooking space, and the 875 sq. in. total — including the stainless steel warming rack — gives you room for everything from a weeknight dinner to a proper weekend cookout. The 15,000 BTU rear rotisserie burner and included premium rotisserie kit extend what you can cook well beyond standard grilling, and the 10,000 BTU side burner handles sauces and sides while the main grill runs. Linear-Flow valves with 180° precision control and a roll-action lid with premium thermometer put you directly in charge of heat management. Four storage drawers, a side burner cabinet, built-in lights, and illuminated knobs in a powder-coat finished cabinet round it out into a genuinely complete outdoor kitchen anchor.
What Sets the Imperial S 590iG Apart
A finished outdoor kitchen island with five-burner performance, a rear rotisserie setup, and 304 stainless steel construction throughout — including the accessories most islands charge extra for.
55K
BTU Main Output
Five stainless steel Dual-Tube burners deliver even, powerful heat across 625 sq. in. of primary cooking space.
875
Sq. In. Total Cook Space
Primary grids plus stainless steel warming rack — room for weeknight dinners and full entertaining spreads.
304
Stainless Steel Throughout
Cookbox, cabinet system, Flav-R-Wave cooking system, and cooking grids — all 304 grade.
15K
BTU Rotisserie Burner
Rear rotisserie burner plus premium rotisserie kit — included in the box and ready to use.
What's Included in the Box›
Included with the Broil King Imperial S 590iG
- Grill island cabinet system (304 stainless steel)
- Five stainless steel Dual-Tube main burners
- Professional cast stainless steel cooking grids
- Stainless steel warming rack
- 304 stainless steel Flav-R-Wave cooking system
- 10,000 BTU range side burner
- 15,000 BTU stainless steel rear rotisserie burner
- Premium rotisserie kit
- Premium thermometer
- Four storage drawers (main five-burner cabinet)
- Side burner cabinet with tank storage
- One-door/one-drawer storage cabinet
- Slide-out grease tray system
- Built-in lights in cookbox and control knobs
- Sure-Lite electronic ignition
Sold Separately
- Granite countertop
- Stainless steel sink
- Faucet
Deep Dive — Imperial S 590iG›
Strong everyday grilling performance for patios and entertaining spaces
The Imperial S 590iG is built for buyers who want real cooking power without overcomplicating the setup. With five stainless steel Dual-Tube burners, a generous primary cooking area, and professional cast stainless steel grids, it has the performance to handle both quick weeknight meals and more ambitious weekend entertaining. If you want one outdoor kitchen centerpiece that feels capable, durable, and easy to use, this layout makes a real difference.
Premium cooking components with side burner and rotisserie flexibility
This grill island does more than cover the basics. The rear rotisserie burner and included premium rotisserie kit expand what you can cook beyond standard grilling, while the range side burner helps with sauces, sides, and finishing work outdoors. Combined with the stainless steel Flav-R-Wave cooking system and precision heat control, the S 590iG is built for buyers who want a more substantial grilling experience.
Built-in storage, polished styling, and nighttime cooking convenience
The S 590iG is more than a grill set into a cabinet. It is a full grill island setup with 304 stainless steel utility drawers, dedicated storage, a side burner cabinet, and details that make evening cooking easier, including built-in oven lights and illuminated control knobs. It gives outdoor kitchens a more finished, furniture-like feel than a bare built-in grill head alone, while still keeping performance front and center.
Who It's For — The Deck & Den Take›
The Imperial S 590iG is for homeowners who grill well and want a premium island that gets out of the way and lets them cook — no connected system, no preset modes, just solid five-burner performance in a finished package. The Linear-Flow valve control gives you real precision across the heat range, and the roll-action lid and cast stainless steel grids mean the cooking experience itself is genuinely premium, not just the cabinet.
If you want iQue smart monitoring, preset Smoke/Roast/Grill modes, and two electronic meat probes, the Imperial QS 590iG is the version to look at — same single-oven five-burner layout, same cooking specs, with the connected control layer added. The S 590iG delivers the same cooking performance without it.
The granite countertop, sink, and faucet are sold separately. Get measurements sorted and materials sourced before the island ships — the installation goes much more smoothly when the countertop isn't an afterthought.
- Homeowners who want a premium finished island and are confident managing heat without connected monitoring
- Buyers who want strong five-burner performance, a rotisserie setup, and built-in storage in one complete package
- Anyone who values 304 stainless steel construction, a powder-coat cabinet finish, and cooking performance over smart features
- Outdoor kitchen shoppers looking for a solid premium option at a step below the iQue-equipped QS 590iG
- Cooks who want a rear rotisserie burner and kit included without any additional purchase
Full Specifications & Dimensions›
General
| Brand |
Broil King |
| Model |
Imperial S 590iG |
| Product Type |
Outdoor kitchen grill island |
| Fuel Options |
Natural gas or liquid propane |
Burners & Heat Output
| Main Burner Output |
55,000 BTU |
| Burners |
Five stainless steel Dual-Tube burners |
| Side Burner |
10,000 BTU range side burner |
| Rear Burner |
15,000 BTU stainless steel rear rotisserie burner |
Cooking Surface
| Cooking Surface |
625 sq. in. primary cooking surface |
| Total Cooking Space |
875 sq. in. including stainless steel warming rack |
| Cooking Grids |
Professional cast stainless steel cooking grids |
| Cooking System |
304 stainless steel Flav-R-Wave cooking system |
Construction
| Cookbox |
304 stainless steel cookbox with cast aluminum end caps |
| Lid Design |
Roll-action lid with cast aluminum end caps |
| Handles |
Stylish and durable stainless steel handles |
| Finish |
Premium powder-coat paint finish on cabinet and base |
| Cabinet Construction |
Five burner 304 stainless steel cabinet with four storage drawers |
Heat Control & Ignition
| Thermometer |
Premium thermometer |
| Heat Control |
Linear-Flow valves with 180° precision control |
| Ignition |
Sure-Lite electronic ignition |
Storage & Features
| Storage |
Side burner cabinet with tank storage and one-door/one-drawer storage cabinet |
| Lighting |
Built-in lights located in the cookbox and control knobs |
| Grease Management |
Slide-out grease tray system |
Included Accessories
| Included Accessories |
Premium rotisserie kit, stainless steel warming rack |
| Sold Separately |
Granite countertop, stainless steel sink, and faucet |
Warranty, Shipping & Returns›
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Warranty: Covered by Broil King's limited manufacturer warranty: limited lifetime coverage on stainless steel/porcelain steel lid components and the stainless steel cookbox; 15 years on cast stainless/stainless steel grids, Dual-Tube burners, side burner, rear burner, stainless steel Flav-R-Wave, stainless steel components, and remaining parts and paint warranty, honored directly by the manufacturer.
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Free Shipping: See our free shipping policy for full details and eligible items.
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Returns: View our return policy for eligibility and process.
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Price Match: Found a lower price? We'll match it.
Manuals & Documents›
Frequently Asked Questions›
Does the Broil King Imperial S 590iG run on propane or natural gas?›
The Imperial S 590iG is available in both natural gas and liquid propane configurations. Confirm your fuel preference at the time of purchase.
What is the total BTU output of the S 590iG?›
The main burners produce 55,000 BTU total. The rear rotisserie burner adds 15,000 BTU and the side burner adds 10,000 BTU, for a combined output of 80,000 BTU across all cooking zones.
What is the total cooking surface area?›
The primary cooking surface is 625 sq. in. With the stainless steel warming rack included, total cooking space reaches 875 sq. in.
Does the Imperial S 590iG have a smart control system or connected temperature monitoring?›
No. The Imperial S 590iG uses Linear-Flow valves with 180° precision control and a premium thermometer for temperature management, but does not include a connected smart control system, preset cooking modes, or electronic meat probes. If you want those features, the Imperial QS 590iG includes the iQue burner monitoring system, preset Smoke/Roast/Grill modes, and two electronic meat probes.
Is the rotisserie kit included, or is it sold separately?›
The premium rotisserie kit is included with the S 590iG. The 15,000 BTU stainless steel rear rotisserie burner is also built in, so you can use it right out of the box without any additional purchase.
Are electronic meat probes included?›
No. The Imperial S 590iG does not include electronic meat probes. It comes with a premium thermometer for monitoring cookbox temperature. If meat probes matter to your decision, the Imperial QS 590iG includes two electronic meat probes as part of its iQue control system.
What stainless steel grade is used for the cabinet and cookbox?›
The cabinet system, cookbox, and Flav-R-Wave cooking system are all 304-grade stainless steel. The cookbox features cast aluminum end caps and a roll-action lid. The cooking grids are professional cast stainless steel. The cabinet and base use a premium powder-coat paint finish.
What storage does the S 590iG include?›
The island includes four storage drawers in the main five-burner cabinet, a side burner cabinet with tank storage, and a one-door/one-drawer storage cabinet. All are part of the 304 stainless steel cabinet system.
Does the countertop, sink, and faucet come with the island?›
No. The granite countertop, stainless steel sink, and faucet are sold separately. Measure and budget for those items before installation to complete the island look.
Does the S 590iG have built-in lighting for nighttime grilling?›
Yes. The island includes built-in lights in the cookbox and illuminated control knobs, making it easier to monitor food and adjust settings after dark.
What does the Flav-R-Wave cooking system do?›
The 304 stainless steel Flav-R-Wave system sits between the burners and the cooking grids, acting as a flame tamer that distributes heat evenly and vaporizes drippings to add flavor back into the food.
How does the S 590iG compare to the QS 590iG?›
Both models share the same five-burner layout, 55,000 BTU main output, 625 sq. in. primary cooking surface, 875 sq. in. total cooking space, rear rotisserie burner and kit, and 304 stainless steel construction. The key difference is the control system: the QS 590iG includes iQue burner temperature monitoring with preset Smoke, Roast, and Grill modes and two electronic meat probes. The S 590iG uses Linear-Flow valve control and a premium thermometer without connected monitoring or probes. If you want guided control and meat probe monitoring, the QS is worth the step up. If you prefer managing the grill directly, the S delivers the same cooking performance without the connected layer.
How does the S 590iG compare to the S 590iF?›
Both models are Imperial S single-oven five-burner islands with the same cooking specs — 55,000 BTU, 625 sq. in. primary, 875 sq. in. total, 304 stainless steel construction, and powder-coat cabinet finish. The suffix difference (iF vs. iG) typically indicates a fuel configuration or regional variant. Confirm the specific distinction with our team or the Broil King spec sheets before ordering.
What is the Broil King Imperial S 590iG warranty?›
Covered by Broil King's limited manufacturer warranty: limited lifetime coverage on stainless steel/porcelain steel lid components and the stainless steel cookbox; 15 years on cast stainless/stainless steel grids, Dual-Tube burners, side burner, rear burner, stainless steel Flav-R-Wave, stainless steel components, and remaining parts and paint warranty, honored directly by the manufacturer. Contact Broil King for warranty service and claims.
Does Deck & Den offer free shipping on the Broil King Imperial S 590iG?›
