45,000 BTUs Across Three Burners, Plus a Dedicated Pro-Sear Zone — Real Multi-Zone Cooking in a 30-Inch Footprint
The Sunstone Ruby Series RUBY3B brings steakhouse-style searing and all-stainless durability to a compact built-in grill.
The Sunstone Ruby Series RUBY3B is a 30-inch built-in gas grill built entirely from 304 stainless steel, with 687 square inches of total cooking space across three main burners and a secondary warming area. A dedicated Pro-Sear infrared burner adds intense finishing heat for steaks and chops, while independent Flame-Thrower ignition, heat-changing LED control panel lighting, and interior halogen lights round out a grill designed for serious outdoor kitchens.
RUBY3B Features & Benefits
Built for cooks who want real zone control without stepping up to a 36-inch or larger grill footprint.
45,000 BTU
Three I-Burners Built for Real Heat
Three fabricated 11-gauge I-burners deliver up to 45,000 BTUs of even heat, so you can run multiple zones at once without one cold spot stalling dinner.
687 sq in
Mains and Sides, Side by Side
536 square inches of primary grates plus 151 square inches of secondary warming space means mains and sides cook together — no more shuttling food inside to keep it warm.
Pro-Sear
A Dedicated Finishing Zone
The Pro-Sear infrared burner adds steakhouse-style finishing heat on demand, so you get a hard crust without overcooking the inside while you wait.
304 SS
All-Stainless Construction
Every panel, burner, and grate is built from 304 stainless steel, so the grill holds its finish through humid summers and salty coastal air instead of pitting after a season.
What's Included in the Box
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In the Box
- Sunstone RUBY3B grill head (liquid propane or natural gas, per your fuel selection)
- Smoker box
- Back hood wind guards
- Spill-Away and Heat-Riser warming grids
- Hose and regulator for your selected fuel type
- Owner's manual
Sold separately: rotisserie kit.
Deep Dive — Spill-Away, Heat-Riser & Fuel Options
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Spill-Away and Heat-Riser Grids Keep Flare-Ups in Check
The angled Spill-Away warming grid channels grease and drippings toward the rear of the firebox instead of into the flame, while the Heat-Riser grid pushes extra heat toward the front for more even temperatures across the grates — fewer surprise flare-ups, more consistent cooks.
Sized to Drop Into a 27 1/2" x 22" x 10" Cutout
The RUBY3B is built to drop into a 27 1/2-inch by 22-inch by 10-inch cutout, with an overall footprint of 30 inches wide by 27 inches deep by 22 inches tall. Measure your island opening against these numbers before you order so the grill seats flush on install day.
Choose Your Fuel Type
The RUBY3B is available in liquid propane (RUBY3B-LP) or natural gas (RUBY3B-NG) configurations — select your fuel type above to match your existing gas line.
Who It's For — The Deck & Den Take
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The Deck & Den Take — This is the grill to pick if you want true multi-zone control in a compact 30-inch footprint. Use the Pro-Sear burner on purpose, not just as a spec-sheet line — drop a strip steak on it after the main grates have done the bulk of the cooking, and you'll get the crust without overcooking the center. If you think you'll want a rotisserie down the line, ask us about the optional kit before you finalize your island layout, since it's sold separately.
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Built-in island owners who need real cooking room without going to a 36-inch or larger grill footprint.
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Cooks who sear as a finishing step and want a dedicated infrared zone instead of cranking the whole grill to max heat.
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Hosts who entertain after dark and want LED and halogen lighting built in, not bolted on.
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Anyone replacing an aging built-in grill — confirm your existing cutout matches the 27 1/2" x 22" x 10" opening before you order.
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Buyers planning a future rotisserie setup who want a grill that supports the optional kit down the line.
Full Specifications & Dimensions
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Performance
| Main Burners |
3 fabricated 11-gauge 304 stainless steel I-burners |
| Grilling Surface BTUs |
45,000 BTU (3 main burners) |
| Infrared Burner |
1 Pro-Sear infrared burner |
| Primary Cooking Area |
536 sq. in. |
| Secondary Cooking Area |
151 sq. in. |
| Total Cooking Area |
687 sq. in. |
| Cooking Grid Dimensions |
27 1/2" W x 19 1/2" D |
Construction & Lighting
| Body & Components |
304 stainless steel |
| Cooking Grates |
Stainless steel, variable rod spacing |
| Flame Tamers |
Stainless steel |
| Ignition |
Flame-Thrower (independent per burner) |
| Lighting |
Heat-changing LED control panel + halogen interior lights |
| Country of Origin |
USA |
Fuel & Configuration
| Fuel Type |
Liquid propane (RUBY3B-LP) or natural gas (RUBY3B-NG) — select your fuel type above |
| Configuration |
Built-in |
Dimensions & Weight
| Overall Width |
30 in (76.2 cm) |
| Overall Depth |
27 in (68.6 cm) |
| Overall Height |
22 in (55.9 cm) |
| Cutout Width |
27 1/2 in (69.9 cm) |
| Cutout Depth |
22 in (55.9 cm) |
| Cutout Height |
10 in (25.4 cm) |
| Product Weight |
112 lb (50.8 kg) |
| Shipping Weight |
135 lbs (61.2 kg) |
Warranty, Shipping & Returns
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Manufacturer's Warranty — Covered by Sunstone's lifetime warranty (original purchaser) on stainless steel burners, cooking grids, and housings, with a one-year warranty on other components such as ignitors, knobs, valves, and tubing — honored directly by the manufacturer.
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Free Shipping on orders over $100 to the contiguous 48 states.
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45-Day Returns if the grill isn't the right fit for your island.
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Price Match available — found it cheaper elsewhere? Let us know.
Manuals & Documents
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Frequently Asked Questions
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What's the difference between the LP and NG versions?▸
RUBY3B-LP runs on liquid propane and RUBY3B-NG runs on natural gas. Both share the same burners, dimensions, and features — select the fuel type that matches your existing gas line.
How many BTUs does the RUBY3B put out?▸
The three main I-burners produce a combined 45,000 BTUs. A separate Pro-Sear infrared burner adds dedicated finishing heat on top of that.
What is the Pro-Sear burner for?▸
It's a dedicated infrared zone for finishing steaks, chops, and other cuts with a hard, restaurant-style crust, used in addition to — not instead of — the main grates.
What cutout size do I need for installation?▸
The grill requires a 27 1/2 in. wide by 22 in. deep by 10 in. tall cutout. Confirm your island's opening against these dimensions before ordering.
Is a rotisserie included?▸
No — the RUBY3B supports an optional rotisserie kit, but it's sold separately and not included with the grill.
What's included in the box?▸
The grill ships with a smoker box, back hood wind guards, Spill-Away and Heat-Riser warming grids, a hose and regulator for your selected fuel type, and the owner's manual.
What's covered under warranty?▸
Sunstone covers the stainless steel burners, cooking grids, and housings for the lifetime of the original purchaser, and other components such as ignitors, knobs, valves, and tubing for one year. Full terms are in the product manual above.
How much does the grill weigh?▸
The grill head weighs 112 lb on its own — useful to know when planning crane support or lift assistance for your island build.
How is each burner lit?▸
Each burner has its own independent Flame-Thrower ignition, so lighting one zone doesn't depend on the others working.
Can I add a rotisserie kit later?▸
Yes — the RUBY3B is designed to support an optional rotisserie kit, which can be added separately if you decide you want it after your initial purchase.
What documentation comes with the grill?▸
A specification sheet, install guide, use and care guide, gas conversion guide, and full product manual are all available as downloads on this page in addition to the printed manual in the box.
What if it doesn't fit my island?▸
If the unit doesn't fit your cutout or isn't right for your setup, it's covered by Deck & Den's 45-day return policy — just contact us before sending it back.
