You may also like
Press & drag to view
Broil King Imperial QS 590 BI Built-In Gas Grill
Five-burner built-in. 304 stainless steel cookbox. iQue Wi-Fi smart control. 15-year warranty.
The Imperial QS 590 BI is Broil King's right-sized built-in gas grill for serious outdoor kitchen builds that do not need the flagship dual cookbox configuration. Five patented Dual-Tube burners, a rear rotisserie burner, a top-ported side burner, and iQue smart control sit inside a 304 stainless steel cabinet engineered for permanent integration into a kitchen island.
55,000
Main BTU Output
625
Primary Sq-In Cooking
15 Year
Manufacturer Warranty
Authorised Broil King Dealer
Full warranty validity, genuine parts, and direct manufacturer support
On Display in Sydney
See it at our Wetherill Park showroom before you commit to your build
Free Sydney Delivery
Direct from our Wetherill Park showroom to your build site
Why the 590 BI Is the Right Choice for Most Outdoor Kitchens
The 590 BI is not a downgrade from the 690 BI. It is the right specification for the majority of outdoor kitchen builds. Five Dual-Tube burners producing 55,000 BTU across 625 sq-in of primary cooking area is a serious gas grill by any measure, with the same cooking technology, smart control, and 15-year warranty as the flagship.
The 690 BI's defining feature is its dual cookbox configuration: two completely separate thermal environments side by side. That capability matters for buyers who need to run a sear at full heat in one box while holding a roast at low heat in the other, with no thermal bleed-through. For most outdoor kitchen cooks (family meals, regular entertaining, weekend barbecues) a single well-designed cookbox with five independent burners delivers everything you need.
The 590 BI also fits build dimensions where the 690 BI does not. Smaller island footprints, narrower outdoor kitchen runs, and builds where the grill shares cabinet space with a sink, fridge, or pizza oven are exactly where the 590 BI earns its place. Visit our Wetherill Park showroom to see both models and discuss which suits your specific build.
Side-by-Side
Imperial QS 590 BI vs 690 BI
| Feature | Imperial QS 590 BI | Imperial QS 690 BI |
|---|---|---|
| Burners | 5 × Dual-Tube | 6 × Dual-Tube |
| Main BTU Output | 55,000 BTU | 60,000 BTU |
| Primary Cooking Area | 625 sq-in | 750 sq-in |
| Cookbox Configuration | Single 304 stainless cookbox | Two completely separate cookboxes |
| Build Footprint | Suits standard outdoor kitchen runs | Requires larger island for dual cookbox |
| Side Burner | 13,000 BTU top-ported | 13,000 BTU top-ported |
| Rotisserie | 15,000 BTU rear + kit included | 15,000 BTU rear + kit included |
| iQue Smart Control | Yes | Yes |
| Warranty | 15 years | 15 years |
If you are building a large outdoor kitchen island where the grill is the primary cooking station and you frequently entertain, the 690 BI with its dual cookbox configuration is worth the step up. For most builds, the 590 BI delivers the same cooking technology in a more compact, more practically priced package.
Cooking TechnologyBuilt-In Engineering
Five Dual-Tube Burners
Patented design carries two parallel flame channels per burner rather than one. Broader, more consistent heat spread. 55,000 BTU combined output across the cooking surface.
304 Stainless Steel Cookbox
Same commercial-grade alloy used in the 690 BI. Resists corrosion, handles outdoor exposure, maintains appearance over years of permanent installation.
Flav-R-Wave Vaporisation
304 stainless panels intercept dripping fat before it reaches the burners. Drippings vaporise into flavour smoke instead of flare-ups, closing the gap between gas and charcoal.
iQue Wi-Fi & Bluetooth
Monitor and control via the Broil King Grilling App. Two electronic meat probes. Smart-Touch presets for smoke, roast, and grill modes built into the panel.
15,000 BTU Rotisserie
Rear-mounted stainless burner heats from behind the spit. Whole chickens, rolled roasts, lamb legs cook with self-basting rotation. Premium kit included as standard.
13,000 BTU Side Burner
Top-ported design directs flame upward for efficient pot and pan heat transfer. Independent operation. Boil, sauce, or cook sides while the main cookbox runs at full capacity.
Cast Stainless Steel Grids
Professional cast grids retain heat better than stamped alternatives. Hold temperature when cold food contacts them. Built for high-heat searing in a permanent installation.
Built-In Lighting
Cookbox lighting and illuminated control knobs as standard. Clear visibility of cooking surface and controls during evening or low-light cooking sessions.
Complete Your Cooking Setup
The Imperial QS 590 BI handles every cut from a steak sear to a low-and-slow roast. To work confidently across that range, an instant-read thermometer is the single most useful addition. The Pyralit Instant Read Thermometer delivers ±0.5°C accuracy in 2 to 3 seconds, ideal for verifying doneness across multiple proteins or zones during a cook.
In the BoxComplete Specification
Imperial QS 590 BI built-in gas grill
5 × Dual-Tube stainless steel burners
304 stainless steel cookbox
Roll-action lid with cast aluminium end caps
15,000 BTU rear rotisserie burner
Premium rotisserie kit included
13,000 BTU top-ported side burner
Flav-R-Wave vaporisation system
Cast stainless steel cooking grids
Stainless steel warming rack
iQue Wi-Fi and Bluetooth smart control
2 × electronic meat probes
Sure-Lite electronic ignition
Built-in cookbox and knob lighting
Slide-out grease tray system
15-year manufacturer warranty
Free Sydney Delivery on the Imperial Range
Direct from our Wetherill Park showroom. Sales and delivery across NSW. For builds outside NSW, call us to discuss delivery arrangements and timing.
Full Specifications
| Burners | 5 × Dual-Tube stainless steel |
| Main Burner Output | 55,000 BTU |
| Side Burner | 13,000 BTU top-ported |
| Rotisserie Burner | 15,000 BTU stainless steel rear |
| Rotisserie Kit | Included |
| Primary Cooking Area | 625 sq-in |
| Cooking Grids | Professional cast stainless steel |
| Flavour System | Flav-R-Wave 304 stainless vaporisation |
| Cookbox Construction | 304 stainless steel |
| Smart Control | iQue Wi-Fi and Bluetooth |
| Companion App | Broil King Grilling App |
| Meat Probes | 2 × electronic |
| Heat Control | Linear-Flow valves, 180-degree precision |
| Ignition | Sure-Lite electronic |
| Lighting | Built-in cookbox and control knob lights |
| Lid Design | Roll-action with cast aluminium end caps |
| Grease Management | Slide-out grease tray system |
| Installation | Built-in outdoor kitchen integration |
| Fuel Type | LPG (natural gas conversion available on request) |
| Warranty | 15 years |
Common Questions
Imperial QS 590 BI FAQs
Questions we get asked most before purchase. Not covered here? Call us or visit the showroom.
Is BBQ Republic an authorised Broil King dealer?
Yes. BBQ Republic is an authorised Broil King dealer. Purchasing through an authorised dealer ensures your 15-year warranty is valid, gives you access to genuine Broil King replacement parts, and provides direct after-sales support. Buying from a non-authorised reseller can void warranty coverage on premium gas grills.
Should I buy the 590 BI or step up to the 690 BI?
For most outdoor kitchen builds, the 590 BI is the right specification. Five Dual-Tube burners across 625 sq-in is a serious gas grill. The 690 BI is worth the step up only if you specifically need the dual cookbox configuration: two completely separate thermal environments side by side for running a sear at full heat in one box while holding a roast at low heat in the other with no thermal bleed-through. If your cooking does not require that level of zone separation, the 590 BI delivers the same cooking technology, smart control, and 15-year warranty in a more compact, more practically priced package.
What is the difference between the Imperial and Regal ranges?
The Regal range is freestanding on a cart and designed as a standalone grill. The Imperial range is a built-in configuration designed to integrate permanently into an outdoor kitchen island. Both ranges share Broil King's core cooking technology including Dual-Tube burners, Flav-R-Wave vaporisation, and iQue smart control. The Imperial adds 304 stainless steel cabinet construction and built-in cookbox lighting as standard.
Does BBQ Republic install the Imperial range?
No. The Imperial range is a built-in product requiring integration into an outdoor kitchen island and gas connection by a licensed tradesperson. BBQ Republic offers free delivery across Sydney and can advise on installation requirements to help you prepare for your build. We do not provide installation directly, but we can walk you through what your installer will need on site.
Does the Imperial QS 590 BI come with the rotisserie kit?
Yes. The premium rotisserie kit is included with the grill as standard. The 15,000 BTU rear rotisserie burner is fitted as part of the build and the kit is supplied for immediate use after installation.
What is iQue and how does it work?
iQue is Broil King's Wi-Fi and Bluetooth smart control system. It connects to the Broil King Grilling App on your phone and lets you monitor and adjust grill temperatures, access preset cooking modes, and receive alerts during a cook. Two electronic meat probes connect to the system to monitor internal food temperature alongside grill temperature. A push-button digital controller on the grill panel provides direct access to all functions without needing your phone.
Does the Imperial QS 590 BI use LPG or natural gas?
The grill is supplied configured for LPG. Natural gas conversion is available on request. Contact us before placing your order if you need a natural gas configuration so we can confirm timeline and parts.
What does the 15-year warranty cover?
The 15-year warranty covers defects in materials and workmanship under normal use and maintenance. It does not cover damage from improper use, neglect, failure to follow maintenance guidelines, use of non-genuine replacement parts, or normal wear items such as cooking grids and igniters over time. We recommend registering your grill with Broil King at the time of purchase to activate your warranty coverage.
Is the Imperial QS 590 BI on display at your showroom?
Yes. The Imperial QS 590 BI is on display at our Wetherill Park showroom in Sydney, alongside the rest of the Broil King Imperial range. If you are in the planning stages of an outdoor kitchen build, coming in to see both the 590 BI and 690 BI in person is a useful early step. Open Monday to Friday 10am to 5pm and Saturday 9am to 2pm.
Found it cheaper elsewhere?
Contact us. We will beat any genuine Australian price on the Broil King Imperial QS 590 BI. The "genuine Australian" qualifier matters at this price point because some grey-import resellers offer apparently lower prices on units that may not be configured for Australian gas certification or covered by the 15-year warranty in this market. We will price-match against legitimate authorised Australian dealers.
Planning an outdoor kitchen build?
Gas BBQs are where our cooking started. Whether you are an end buyer or a builder speccing for a client, we can give you a straight answer based on hands-on experience.
Wetherill Park showroom · Monday to Friday 10am to 5pm · Saturday 9am to 2pm
