Broil King Imperial QS 590i Grill Center with iQue — Deck and Den
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Broil King Imperial QS 590i Grill Center with iQue, front view

Broil King Imperial QS 590i Grill Center with iQue

by Broil King Grills
SKU 698887-NG
$8,799.00
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Wi-Fi, Five Burners, Granite Counter — The Broil King Imperial QS 590i

A smart island grill center with iQue Wi-Fi and Bluetooth control, 80,000 BTUs across three zones, 625 sq. in. of primary cooking space, and granite countertop included.

The Broil King Imperial QS 590i brings Broil King's iQue smart technology into the Imperial island platform — five Dual-Tube burners pushing 55,000 BTUs across 625 square inches of Flav-R-Cast stainless steel cooking grids, a 10,000 BTU infrared side burner for precision searing and prep work, and a 15,000 BTU rear rotisserie burner with the kit included. Wi-Fi and Bluetooth connectivity let you monitor and adjust from your phone. Built-in oven lights and illuminated control knobs keep the session running after dark. The iQue tank scale on LP models tells you how much propane is left before you run out mid-cook. Soft-close drawers, a granite countertop, and a pull-out trash and recycling cabinet round out the island. This is the smart grill center for buyers who want the Imperial platform and connected control in one setup.

Free Shipping Easy Returns Price Match Guarantee Authorized Broil King Dealer

Why the Imperial QS 590i Stands Apart

Six things that make this more than an Imperial island with extra buttons.

iQue

Wi-Fi + Bluetooth Control

Monitor temperatures, adjust settings, and track your cook remotely — from the patio or from inside the house.

55,000

BTU Main Output

Five Dual-Tube burners deliver even heat across 625 sq. in. of primary cooking surface for serious grilling performance.

10,000

BTU Infrared Side Burner

Infrared side burner for focused searing heat and precision prep work — at the island, without touching the main lid.

15,000

BTU Rear Rotisserie Burner

Rear burner and rotisserie kit both included — ready to roast from day one.

Flav-R

Cast Stainless Grids

Flav-R-Cast stainless steel cooking grids for premium heat retention, searing performance, and low-maintenance durability.

Granite

Countertop Included

Granite counter and soft-close stainless cabinetry — the finished outdoor kitchen presentation, no custom build required.

Broil King Imperial QS 590i smart grill center with granite countertop and stainless steel cabinetry

What's Included in the Box

›

Grill & Cooking System

  • 5 Dual-Tube burners (55,000 BTU main output)
  • 10,000 BTU infrared side burner
  • 15,000 BTU rear rotisserie burner
  • Flav-R-Cast stainless steel cooking grids
  • Stainless steel warming rack
  • Stainless steel Flav-R-Wave cooking system
  • Electronic ignition
  • Built-in oven lights
  • Illuminated control knobs

Smart Technology

  • iQue Technology Control (Wi-Fi and Bluetooth enabled)
  • iQue tank scale — LP models (monitors propane level)

Island & Cabinetry

  • Granite countertop
  • 304 stainless steel utility cabinet drawers
  • Soft-close doors and drawers
  • Pull-out cabinet with trash and recycling bins

Included Accessories

  • Rotisserie kit

Fuel Options

  • Available in Propane (LP) or Natural Gas (NG) — select at purchase

Deep Dive — Imperial QS 590i

›

iQue smart control for precision grilling and remote monitoring

The Imperial QS 590i is built around Broil King's iQue technology, adding Wi-Fi and Bluetooth connectivity for more precise digital grilling control and easier remote monitoring. Combined with illuminated control knobs and built-in oven lights, this smart feature set helps create a more confident day-to-night cooking experience for buyers who want more than a traditional grill center.

Five-burner grilling power with infrared side burner and rotisserie versatility

With five stainless steel Dual-Tube burners producing 55,000 BTUs, the Imperial QS 590i is designed for strong, even heat across a large grilling surface. The 10,000 BTU infrared side burner delivers focused searing heat for sauces, sides, and pan work, while the 15,000 BTU rear burner and included rotisserie kit add flexibility for more advanced outdoor cooking.

Premium Broil King materials with island-level refinement

This grill center pairs premium Flav-R-Cast stainless steel cooking grids, a stainless steel Flav-R-Wave cooking system, and utility cabinetry with a granite countertop to create a more upscale outdoor kitchen presentation. Soft-close doors and drawers and a pull-out trash and recycling cabinet complete the organizational workflow. The LP version includes an iQue tank scale, while the NG configuration uses utility drawers within the same polished island footprint.

Integrated island design for a more complete outdoor kitchen setup

The Imperial QS 590i is designed as a finished grill center rather than a simple freestanding grill, making it a strong fit for buyers building a more complete outdoor cooking setup. Its infrared side burner, utility storage, exact-fit island form, and granite workspace all support a more functional and more luxurious entertaining environment.

Broil King Imperial QS 590i 5 burner grill center with iQue technology and rotisserie kit

Who It's For — The Deck & Den Take

›

The QS 590i is the Imperial S 590i with a brain. If you'd buy the S version anyway, the iQue connectivity is a meaningful upgrade — remote temperature monitoring is actually useful when you're hosting, not just a novelty. The iQue tank scale on LP models is a genuinely practical feature that saves you the mid-cook sprint to the store.

Where it makes less sense: if you'll never use the app or don't want to manage connected devices on your patio, you're paying for features you won't touch. The Imperial S 590i covers the same cooking territory for less. If smart connectivity matters to you though, this is the right place to get it — it's integrated into the platform, not a retrofit.

Note that the side burner here is infrared — 10,000 BTU focused infrared heat. That's better for high-heat searing and pan work than a standard side burner, but it's not a conventional flame burner for low-and-slow simmering. Worth knowing before you buy.

  • Buyers who want Imperial island quality with Wi-Fi and Bluetooth grill monitoring via the iQue app
  • LP users who want an iQue tank scale to monitor propane level without guessing
  • Homeowners who entertain regularly and want all three cooking zones — main grill, infrared side burner, rotisserie
  • Shoppers comparing smart outdoor kitchen islands in the 79-inch width range
  • LP or natural gas households — both configurations available (LP: 698884 / NG: 698887)

Full Specifications & Dimensions

›

General

Brand Broil King
Model Imperial QS 590i
Collection Imperial iQue Islands
Model Numbers 698884 (LP) / 698887 (NG)
Fuel Type Propane Gas (LP) or Natural Gas (NG)

Smart Technology

Smart Connectivity Wi-Fi and Bluetooth enabled (iQue Technology)
Tank Monitoring (LP) iQue tank scale — monitors propane level (LP models)

Burners & Heat

Main Burners 5 Dual-Tube burners
Main Burner Output 55,000 BTU
Side Burner Output 10,000 BTU Infrared Side Burner
Rear Rotisserie Burner Output 15,000 BTU
Cooking System Stainless steel Flav-R-Wave cooking system

Cooking Surface

Primary Cooking Space 625 sq. in.
Cooking Grids Flav-R-Cast stainless steel cooking grids
Warming Rack Stainless steel warming rack

Controls & Lighting

Ignition Electronic ignition
Control Knobs Illuminated control knobs
Oven Lights Built-in oven lights

Island Construction & Storage

Countertop Granite (included)
Utility Cabinet 304 stainless steel utility cabinet drawers; soft-close doors and drawers
Additional Storage Pull-out cabinet with trash and recycling bins
Included Accessories Rotisserie kit

Dimensions & Weight

Assembled Height 50 in.
Assembled Width 79.3 in.
Assembled Depth 31.5 in.
Weight (LP and NG) 672 lbs. (both LP and NG configurations)

Warranty, Shipping & Returns

›
  • Warranty: Broil King's published Imperial-series limited warranty lists lifetime coverage for qualifying stainless-steel lid and cookbox components, plus 15-year coverage for stainless-steel cooking grids, the stainless-steel Flav-R-Wave system, Dual-Tube burners, side and rear burners, stainless-steel components, and remaining grill parts and paint. Island cabinetry, countertop components, smart-control components, accessories, labor, freight, exclusions, proof-of-purchase requirements, and claim procedures are subject to Broil King's current written warranty terms. Warranty service is handled by Broil King / Onward Manufacturing.
  • Free Shipping: This item ships free to the contiguous U.S. See our shipping policy.
  • Returns: We want you to love it. View our return policy.
  • Price Match: Found it for less? We'll match it. Learn about our price match guarantee.

Manuals & Documents

›

Frequently Asked Questions

›
What is iQue technology and what does it do?›

iQue is Broil King's smart control system. It adds Wi-Fi and Bluetooth connectivity to the grill, allowing you to monitor temperatures, adjust settings, and track your cook remotely through a connected app. The LP version also includes an iQue tank scale that monitors how much propane remains in the tank.

What are the assembled dimensions of the Imperial QS 590i?›

The assembled dimensions are: Height 50 in., Width 79.3 in., Depth 31.5 in.

What is the total BTU output of the Imperial QS 590i?›

The Imperial QS 590i delivers 55,000 BTUs from five main Dual-Tube burners, 10,000 BTUs from the infrared side burner, and 15,000 BTUs from the rear rotisserie burner — 80,000 BTUs total across all three zones.

What type of side burner does the Imperial QS 590i have?›

The Imperial QS 590i has a 10,000 BTU infrared side burner — not a standard flame burner. Infrared delivers focused, high-heat searing energy, which is well suited for pan searing, sautéing, and high-heat prep work. It is less suited for low-temperature simmering tasks.

Is the rotisserie kit included?›

Yes. The rotisserie kit is included with the Imperial QS 590i — ready to use on day one, no add-ons required.

Is the granite countertop included?›

Yes. The granite countertop is included with the Imperial QS 590i at no additional cost.

Does the Imperial QS 590i come in natural gas?›

Yes. The Imperial QS 590i is available in Propane (LP, model 698884) and Natural Gas (NG, model 698887). Both configurations weigh 672 lbs.

How does the Imperial QS 590i compare to the Imperial S 590i?›

Both have 5 burners, 55,000 BTU main output, 625 sq. in. primary cooking space, and the same assembled dimensions. The QS version adds iQue Wi-Fi and Bluetooth connectivity, an iQue tank scale (LP), and an infrared side burner instead of a standard side burner. The Imperial S 590i does not have smart connectivity.

What is the warranty on the Imperial QS 590i?›

Broil King's published Imperial-series limited warranty lists lifetime coverage for qualifying stainless-steel lid and cookbox components, plus 15-year coverage for stainless-steel cooking grids, the stainless-steel Flav-R-Wave system, Dual-Tube burners, side and rear burners, stainless-steel components, and remaining grill parts and paint. Island cabinetry, countertop components, smart-control components, accessories, labor, freight, exclusions, proof-of-purchase requirements, and claim procedures are subject to Broil King's current written warranty terms.

Does the Imperial QS 590i ship free?›

Yes — the Imperial QS 590i ships free to the contiguous U.S. At 672 lbs. it ships via freight carrier with curbside delivery. Contact us with any questions about delivery logistics for your address.

Wi-Fi, Five Burners, Granite Counter — The Broil King Imperial QS 590i

A smart island grill center with iQue Wi-Fi and Bluetooth control, 80,000 BTUs across three zones, 625 sq. in. of primary cooking space, and granite countertop included.

The Broil King Imperial QS 590i brings Broil King's iQue smart technology into the Imperial island platform — five Dual-Tube burners pushing 55,000 BTUs across 625 square inches of Flav-R-Cast stainless steel cooking grids, a 10,000 BTU infrared side burner for precision searing and prep work, and a 15,000 BTU rear rotisserie burner with the kit included. Wi-Fi and Bluetooth connectivity let you monitor and adjust from your phone. Built-in oven lights and illuminated control knobs keep the session running after dark. The iQue tank scale on LP models tells you how much propane is left before you run out mid-cook. Soft-close drawers, a granite countertop, and a pull-out trash and recycling cabinet round out the island. This is the smart grill center for buyers who want the Imperial platform and connected control in one setup.

Free Shipping Easy Returns Price Match Guarantee Authorized Broil King Dealer

Why the Imperial QS 590i Stands Apart

Six things that make this more than an Imperial island with extra buttons.

iQue

Wi-Fi + Bluetooth Control

Monitor temperatures, adjust settings, and track your cook remotely — from the patio or from inside the house.

55,000

BTU Main Output

Five Dual-Tube burners deliver even heat across 625 sq. in. of primary cooking surface for serious grilling performance.

10,000

BTU Infrared Side Burner

Infrared side burner for focused searing heat and precision prep work — at the island, without touching the main lid.

15,000

BTU Rear Rotisserie Burner

Rear burner and rotisserie kit both included — ready to roast from day one.

Flav-R

Cast Stainless Grids

Flav-R-Cast stainless steel cooking grids for premium heat retention, searing performance, and low-maintenance durability.

Granite

Countertop Included

Granite counter and soft-close stainless cabinetry — the finished outdoor kitchen presentation, no custom build required.

Broil King Imperial QS 590i smart grill center with granite countertop and stainless steel cabinetry

What's Included in the Box

›

Grill & Cooking System

  • 5 Dual-Tube burners (55,000 BTU main output)
  • 10,000 BTU infrared side burner
  • 15,000 BTU rear rotisserie burner
  • Flav-R-Cast stainless steel cooking grids
  • Stainless steel warming rack
  • Stainless steel Flav-R-Wave cooking system
  • Electronic ignition
  • Built-in oven lights
  • Illuminated control knobs

Smart Technology

  • iQue Technology Control (Wi-Fi and Bluetooth enabled)
  • iQue tank scale — LP models (monitors propane level)

Island & Cabinetry

  • Granite countertop
  • 304 stainless steel utility cabinet drawers
  • Soft-close doors and drawers
  • Pull-out cabinet with trash and recycling bins

Included Accessories

  • Rotisserie kit

Fuel Options

  • Available in Propane (LP) or Natural Gas (NG) — select at purchase

Deep Dive — Imperial QS 590i

›

iQue smart control for precision grilling and remote monitoring

The Imperial QS 590i is built around Broil King's iQue technology, adding Wi-Fi and Bluetooth connectivity for more precise digital grilling control and easier remote monitoring. Combined with illuminated control knobs and built-in oven lights, this smart feature set helps create a more confident day-to-night cooking experience for buyers who want more than a traditional grill center.

Five-burner grilling power with infrared side burner and rotisserie versatility

With five stainless steel Dual-Tube burners producing 55,000 BTUs, the Imperial QS 590i is designed for strong, even heat across a large grilling surface. The 10,000 BTU infrared side burner delivers focused searing heat for sauces, sides, and pan work, while the 15,000 BTU rear burner and included rotisserie kit add flexibility for more advanced outdoor cooking.

Premium Broil King materials with island-level refinement

This grill center pairs premium Flav-R-Cast stainless steel cooking grids, a stainless steel Flav-R-Wave cooking system, and utility cabinetry with a granite countertop to create a more upscale outdoor kitchen presentation. Soft-close doors and drawers and a pull-out trash and recycling cabinet complete the organizational workflow. The LP version includes an iQue tank scale, while the NG configuration uses utility drawers within the same polished island footprint.

Integrated island design for a more complete outdoor kitchen setup

The Imperial QS 590i is designed as a finished grill center rather than a simple freestanding grill, making it a strong fit for buyers building a more complete outdoor cooking setup. Its infrared side burner, utility storage, exact-fit island form, and granite workspace all support a more functional and more luxurious entertaining environment.

Broil King Imperial QS 590i 5 burner grill center with iQue technology and rotisserie kit

Who It's For — The Deck & Den Take

›

The QS 590i is the Imperial S 590i with a brain. If you'd buy the S version anyway, the iQue connectivity is a meaningful upgrade — remote temperature monitoring is actually useful when you're hosting, not just a novelty. The iQue tank scale on LP models is a genuinely practical feature that saves you the mid-cook sprint to the store.

Where it makes less sense: if you'll never use the app or don't want to manage connected devices on your patio, you're paying for features you won't touch. The Imperial S 590i covers the same cooking territory for less. If smart connectivity matters to you though, this is the right place to get it — it's integrated into the platform, not a retrofit.

Note that the side burner here is infrared — 10,000 BTU focused infrared heat. That's better for high-heat searing and pan work than a standard side burner, but it's not a conventional flame burner for low-and-slow simmering. Worth knowing before you buy.

  • Buyers who want Imperial island quality with Wi-Fi and Bluetooth grill monitoring via the iQue app
  • LP users who want an iQue tank scale to monitor propane level without guessing
  • Homeowners who entertain regularly and want all three cooking zones — main grill, infrared side burner, rotisserie
  • Shoppers comparing smart outdoor kitchen islands in the 79-inch width range
  • LP or natural gas households — both configurations available (LP: 698884 / NG: 698887)

Full Specifications & Dimensions

›

General

Brand Broil King
Model Imperial QS 590i
Collection Imperial iQue Islands
Model Numbers 698884 (LP) / 698887 (NG)
Fuel Type Propane Gas (LP) or Natural Gas (NG)

Smart Technology

Smart Connectivity Wi-Fi and Bluetooth enabled (iQue Technology)
Tank Monitoring (LP) iQue tank scale — monitors propane level (LP models)

Burners & Heat

Main Burners 5 Dual-Tube burners
Main Burner Output 55,000 BTU
Side Burner Output 10,000 BTU Infrared Side Burner
Rear Rotisserie Burner Output 15,000 BTU
Cooking System Stainless steel Flav-R-Wave cooking system

Cooking Surface

Primary Cooking Space 625 sq. in.
Cooking Grids Flav-R-Cast stainless steel cooking grids
Warming Rack Stainless steel warming rack

Controls & Lighting

Ignition Electronic ignition
Control Knobs Illuminated control knobs
Oven Lights Built-in oven lights

Island Construction & Storage

Countertop Granite (included)
Utility Cabinet 304 stainless steel utility cabinet drawers; soft-close doors and drawers
Additional Storage Pull-out cabinet with trash and recycling bins
Included Accessories Rotisserie kit

Dimensions & Weight

Assembled Height 50 in.
Assembled Width 79.3 in.
Assembled Depth 31.5 in.
Weight (LP and NG) 672 lbs. (both LP and NG configurations)

Warranty, Shipping & Returns

›
  • Warranty: Broil King's published Imperial-series limited warranty lists lifetime coverage for qualifying stainless-steel lid and cookbox components, plus 15-year coverage for stainless-steel cooking grids, the stainless-steel Flav-R-Wave system, Dual-Tube burners, side and rear burners, stainless-steel components, and remaining grill parts and paint. Island cabinetry, countertop components, smart-control components, accessories, labor, freight, exclusions, proof-of-purchase requirements, and claim procedures are subject to Broil King's current written warranty terms. Warranty service is handled by Broil King / Onward Manufacturing.
  • Free Shipping: This item ships free to the contiguous U.S. See our shipping policy.
  • Returns: We want you to love it. View our return policy.
  • Price Match: Found it for less? We'll match it. Learn about our price match guarantee.

Manuals & Documents

›

Frequently Asked Questions

›
What is iQue technology and what does it do?›

iQue is Broil King's smart control system. It adds Wi-Fi and Bluetooth connectivity to the grill, allowing you to monitor temperatures, adjust settings, and track your cook remotely through a connected app. The LP version also includes an iQue tank scale that monitors how much propane remains in the tank.

What are the assembled dimensions of the Imperial QS 590i?›

The assembled dimensions are: Height 50 in., Width 79.3 in., Depth 31.5 in.

What is the total BTU output of the Imperial QS 590i?›

The Imperial QS 590i delivers 55,000 BTUs from five main Dual-Tube burners, 10,000 BTUs from the infrared side burner, and 15,000 BTUs from the rear rotisserie burner — 80,000 BTUs total across all three zones.

What type of side burner does the Imperial QS 590i have?›

The Imperial QS 590i has a 10,000 BTU infrared side burner — not a standard flame burner. Infrared delivers focused, high-heat searing energy, which is well suited for pan searing, sautéing, and high-heat prep work. It is less suited for low-temperature simmering tasks.

Is the rotisserie kit included?›

Yes. The rotisserie kit is included with the Imperial QS 590i — ready to use on day one, no add-ons required.

Is the granite countertop included?›

Yes. The granite countertop is included with the Imperial QS 590i at no additional cost.

Does the Imperial QS 590i come in natural gas?›

Yes. The Imperial QS 590i is available in Propane (LP, model 698884) and Natural Gas (NG, model 698887). Both configurations weigh 672 lbs.

How does the Imperial QS 590i compare to the Imperial S 590i?›

Both have 5 burners, 55,000 BTU main output, 625 sq. in. primary cooking space, and the same assembled dimensions. The QS version adds iQue Wi-Fi and Bluetooth connectivity, an iQue tank scale (LP), and an infrared side burner instead of a standard side burner. The Imperial S 590i does not have smart connectivity.

What is the warranty on the Imperial QS 590i?›

Broil King's published Imperial-series limited warranty lists lifetime coverage for qualifying stainless-steel lid and cookbox components, plus 15-year coverage for stainless-steel cooking grids, the stainless-steel Flav-R-Wave system, Dual-Tube burners, side and rear burners, stainless-steel components, and remaining grill parts and paint. Island cabinetry, countertop components, smart-control components, accessories, labor, freight, exclusions, proof-of-purchase requirements, and claim procedures are subject to Broil King's current written warranty terms.

Does the Imperial QS 590i ship free?›

Yes — the Imperial QS 590i ships free to the contiguous U.S. At 672 lbs. it ships via freight carrier with curbside delivery. Contact us with any questions about delivery logistics for your address.

    Wi-Fi, Five Burners, Granite Counter — The Broil King Imperial QS 590i

    A smart island grill center with iQue Wi-Fi and Bluetooth control, 80,000 BTUs across three zones, 625 sq. in. of primary cooking space, and granite countertop included.

    The Broil King Imperial QS 590i brings Broil King's iQue smart technology into the Imperial island platform — five Dual-Tube burners pushing 55,000 BTUs across 625 square inches of Flav-R-Cast stainless steel cooking grids, a 10,000 BTU infrared side burner for precision searing and prep work, and a 15,000 BTU rear rotisserie burner with the kit included. Wi-Fi and Bluetooth connectivity let you monitor and adjust from your phone. Built-in oven lights and illuminated control knobs keep the session running after dark. The iQue tank scale on LP models tells you how much propane is left before you run out mid-cook. Soft-close drawers, a granite countertop, and a pull-out trash and recycling cabinet round out the island. This is the smart grill center for buyers who want the Imperial platform and connected control in one setup.

    Free Shipping Easy Returns Price Match Guarantee Authorized Broil King Dealer

    Why the Imperial QS 590i Stands Apart

    Six things that make this more than an Imperial island with extra buttons.

    iQue

    Wi-Fi + Bluetooth Control

    Monitor temperatures, adjust settings, and track your cook remotely — from the patio or from inside the house.

    55,000

    BTU Main Output

    Five Dual-Tube burners deliver even heat across 625 sq. in. of primary cooking surface for serious grilling performance.

    10,000

    BTU Infrared Side Burner

    Infrared side burner for focused searing heat and precision prep work — at the island, without touching the main lid.

    15,000

    BTU Rear Rotisserie Burner

    Rear burner and rotisserie kit both included — ready to roast from day one.

    Flav-R

    Cast Stainless Grids

    Flav-R-Cast stainless steel cooking grids for premium heat retention, searing performance, and low-maintenance durability.

    Granite

    Countertop Included

    Granite counter and soft-close stainless cabinetry — the finished outdoor kitchen presentation, no custom build required.

    Broil King Imperial QS 590i smart grill center with granite countertop and stainless steel cabinetry

    What's Included in the Box

    ›

    Grill & Cooking System

    • 5 Dual-Tube burners (55,000 BTU main output)
    • 10,000 BTU infrared side burner
    • 15,000 BTU rear rotisserie burner
    • Flav-R-Cast stainless steel cooking grids
    • Stainless steel warming rack
    • Stainless steel Flav-R-Wave cooking system
    • Electronic ignition
    • Built-in oven lights
    • Illuminated control knobs

    Smart Technology

    • iQue Technology Control (Wi-Fi and Bluetooth enabled)
    • iQue tank scale — LP models (monitors propane level)

    Island & Cabinetry

    • Granite countertop
    • 304 stainless steel utility cabinet drawers
    • Soft-close doors and drawers
    • Pull-out cabinet with trash and recycling bins

    Included Accessories

    • Rotisserie kit

    Fuel Options

    • Available in Propane (LP) or Natural Gas (NG) — select at purchase

    Deep Dive — Imperial QS 590i

    ›

    iQue smart control for precision grilling and remote monitoring

    The Imperial QS 590i is built around Broil King's iQue technology, adding Wi-Fi and Bluetooth connectivity for more precise digital grilling control and easier remote monitoring. Combined with illuminated control knobs and built-in oven lights, this smart feature set helps create a more confident day-to-night cooking experience for buyers who want more than a traditional grill center.

    Five-burner grilling power with infrared side burner and rotisserie versatility

    With five stainless steel Dual-Tube burners producing 55,000 BTUs, the Imperial QS 590i is designed for strong, even heat across a large grilling surface. The 10,000 BTU infrared side burner delivers focused searing heat for sauces, sides, and pan work, while the 15,000 BTU rear burner and included rotisserie kit add flexibility for more advanced outdoor cooking.

    Premium Broil King materials with island-level refinement

    This grill center pairs premium Flav-R-Cast stainless steel cooking grids, a stainless steel Flav-R-Wave cooking system, and utility cabinetry with a granite countertop to create a more upscale outdoor kitchen presentation. Soft-close doors and drawers and a pull-out trash and recycling cabinet complete the organizational workflow. The LP version includes an iQue tank scale, while the NG configuration uses utility drawers within the same polished island footprint.

    Integrated island design for a more complete outdoor kitchen setup

    The Imperial QS 590i is designed as a finished grill center rather than a simple freestanding grill, making it a strong fit for buyers building a more complete outdoor cooking setup. Its infrared side burner, utility storage, exact-fit island form, and granite workspace all support a more functional and more luxurious entertaining environment.

    Broil King Imperial QS 590i 5 burner grill center with iQue technology and rotisserie kit

    Who It's For — The Deck & Den Take

    ›

    The QS 590i is the Imperial S 590i with a brain. If you'd buy the S version anyway, the iQue connectivity is a meaningful upgrade — remote temperature monitoring is actually useful when you're hosting, not just a novelty. The iQue tank scale on LP models is a genuinely practical feature that saves you the mid-cook sprint to the store.

    Where it makes less sense: if you'll never use the app or don't want to manage connected devices on your patio, you're paying for features you won't touch. The Imperial S 590i covers the same cooking territory for less. If smart connectivity matters to you though, this is the right place to get it — it's integrated into the platform, not a retrofit.

    Note that the side burner here is infrared — 10,000 BTU focused infrared heat. That's better for high-heat searing and pan work than a standard side burner, but it's not a conventional flame burner for low-and-slow simmering. Worth knowing before you buy.

    • Buyers who want Imperial island quality with Wi-Fi and Bluetooth grill monitoring via the iQue app
    • LP users who want an iQue tank scale to monitor propane level without guessing
    • Homeowners who entertain regularly and want all three cooking zones — main grill, infrared side burner, rotisserie
    • Shoppers comparing smart outdoor kitchen islands in the 79-inch width range
    • LP or natural gas households — both configurations available (LP: 698884 / NG: 698887)

    Full Specifications & Dimensions

    ›

    General

    Brand Broil King
    Model Imperial QS 590i
    Collection Imperial iQue Islands
    Model Numbers 698884 (LP) / 698887 (NG)
    Fuel Type Propane Gas (LP) or Natural Gas (NG)

    Smart Technology

    Smart Connectivity Wi-Fi and Bluetooth enabled (iQue Technology)
    Tank Monitoring (LP) iQue tank scale — monitors propane level (LP models)

    Burners & Heat

    Main Burners 5 Dual-Tube burners
    Main Burner Output 55,000 BTU
    Side Burner Output 10,000 BTU Infrared Side Burner
    Rear Rotisserie Burner Output 15,000 BTU
    Cooking System Stainless steel Flav-R-Wave cooking system

    Cooking Surface

    Primary Cooking Space 625 sq. in.
    Cooking Grids Flav-R-Cast stainless steel cooking grids
    Warming Rack Stainless steel warming rack

    Controls & Lighting

    Ignition Electronic ignition
    Control Knobs Illuminated control knobs
    Oven Lights Built-in oven lights

    Island Construction & Storage

    Countertop Granite (included)
    Utility Cabinet 304 stainless steel utility cabinet drawers; soft-close doors and drawers
    Additional Storage Pull-out cabinet with trash and recycling bins
    Included Accessories Rotisserie kit

    Dimensions & Weight

    Assembled Height 50 in.
    Assembled Width 79.3 in.
    Assembled Depth 31.5 in.
    Weight (LP and NG) 672 lbs. (both LP and NG configurations)

    Warranty, Shipping & Returns

    ›
    • Warranty: Broil King's published Imperial-series limited warranty lists lifetime coverage for qualifying stainless-steel lid and cookbox components, plus 15-year coverage for stainless-steel cooking grids, the stainless-steel Flav-R-Wave system, Dual-Tube burners, side and rear burners, stainless-steel components, and remaining grill parts and paint. Island cabinetry, countertop components, smart-control components, accessories, labor, freight, exclusions, proof-of-purchase requirements, and claim procedures are subject to Broil King's current written warranty terms. Warranty service is handled by Broil King / Onward Manufacturing.
    • Free Shipping: This item ships free to the contiguous U.S. See our shipping policy.
    • Returns: We want you to love it. View our return policy.
    • Price Match: Found it for less? We'll match it. Learn about our price match guarantee.

    Manuals & Documents

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    Frequently Asked Questions

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    What is iQue technology and what does it do?›

    iQue is Broil King's smart control system. It adds Wi-Fi and Bluetooth connectivity to the grill, allowing you to monitor temperatures, adjust settings, and track your cook remotely through a connected app. The LP version also includes an iQue tank scale that monitors how much propane remains in the tank.

    What are the assembled dimensions of the Imperial QS 590i?›

    The assembled dimensions are: Height 50 in., Width 79.3 in., Depth 31.5 in.

    What is the total BTU output of the Imperial QS 590i?›

    The Imperial QS 590i delivers 55,000 BTUs from five main Dual-Tube burners, 10,000 BTUs from the infrared side burner, and 15,000 BTUs from the rear rotisserie burner — 80,000 BTUs total across all three zones.

    What type of side burner does the Imperial QS 590i have?›

    The Imperial QS 590i has a 10,000 BTU infrared side burner — not a standard flame burner. Infrared delivers focused, high-heat searing energy, which is well suited for pan searing, sautéing, and high-heat prep work. It is less suited for low-temperature simmering tasks.

    Is the rotisserie kit included?›

    Yes. The rotisserie kit is included with the Imperial QS 590i — ready to use on day one, no add-ons required.

    Is the granite countertop included?›

    Yes. The granite countertop is included with the Imperial QS 590i at no additional cost.

    Does the Imperial QS 590i come in natural gas?›

    Yes. The Imperial QS 590i is available in Propane (LP, model 698884) and Natural Gas (NG, model 698887). Both configurations weigh 672 lbs.

    How does the Imperial QS 590i compare to the Imperial S 590i?›

    Both have 5 burners, 55,000 BTU main output, 625 sq. in. primary cooking space, and the same assembled dimensions. The QS version adds iQue Wi-Fi and Bluetooth connectivity, an iQue tank scale (LP), and an infrared side burner instead of a standard side burner. The Imperial S 590i does not have smart connectivity.

    What is the warranty on the Imperial QS 590i?›

    Broil King's published Imperial-series limited warranty lists lifetime coverage for qualifying stainless-steel lid and cookbox components, plus 15-year coverage for stainless-steel cooking grids, the stainless-steel Flav-R-Wave system, Dual-Tube burners, side and rear burners, stainless-steel components, and remaining grill parts and paint. Island cabinetry, countertop components, smart-control components, accessories, labor, freight, exclusions, proof-of-purchase requirements, and claim procedures are subject to Broil King's current written warranty terms.

    Does the Imperial QS 590i ship free?›

    Yes — the Imperial QS 590i ships free to the contiguous U.S. At 672 lbs. it ships via freight carrier with curbside delivery. Contact us with any questions about delivery logistics for your address.