Grand Canyon 120-Inch Jumbo Indoor Vented Natural Gas Burner System JUMBOBRNR-120
Overview
The Grand Canyon 120-Inch Jumbo Indoor Vented Burner System is the largest production burner in its class, engineered for truly grand-scale fireplaces — from luxury hotel lobbies and resort great rooms to expansive private estates. Built on a fully welded 304 stainless steel chassis, it delivers an even-distribution rear burner with a dual-action middle burner and a dedicated front ember-glow burner, producing towering, lifelike flames and a mesmerizing ember bed. Gas can enter from either side, and the concealed pilot mounting brackets keep the installation clean and refined.
The system ships complete with 1-inch bar stock, burner pipes, lava rock, connection fittings, a flex line, and the ember damper clamp. It is ANSI Certified with Control Systems, backed by a Lifetime Warranty when installed indoors, and manufactured in Phoenix, Arizona — proudly Made in the USA. Note: Logs are not included and must be purchased separately (compatible with Grand Canyon JUMBOAWO and JUMBOAWOC Jumbo log sets only).
Specifications
- SKU: JUMBOBRNR-120
- Size: 120 Inches (Front Width)
- Front Width: 120"
- Back Width: 112"
- Depth: 21"
- Height: 10"
- BTU Rating (NG): 500,000 BTU/hr
- BTU Rating (LP): 450,000 BTU/hr (propane conversion available)
- Fuel Type: Natural Gas (convertible to Propane)
- Burner Style: Even-distribution rear burner w/ dual-action middle burner & dedicated ember glow burner
- Material: 304 Stainless Steel Chassis
- Piping: 3/4" Gas Line & 1" Bar Stock
- Gas Inlets: Dual inlets — Left or Right entry
- Standards: ANSI Certified with Control Systems
- Usage: Indoor Only — Vented fireplace enclosures only (damper clamp required)
- Design: Fully Welded System, Sandless Design
- Pilot: Concealed Pilot Mounting Brackets
- Included Media: Lava Rock, Embers, Flex Line, Connection Fittings, Ember Damper Clamp
- Logs: Not Included (sold separately)
- Warranty: Lifetime Warranty when installed indoors
- Made in USA: Yes — Phoenix, Arizona
- Authorized Dealer: ExceptionalFire.com is an authorized Grand Canyon Gas Logs dealer
Specifications
| Vendor | Grand Canyon |
|---|---|
| Title | Default Title |
| Type | Gas Logs |
| SKU | JUMBOBRNR-120 |
Shipping & Returns
Free shipping across the contiguous US. Ships in 3-10 days from our facility.
All shipments are insured and tracked. You'll receive a tracking number via email within 24 hours of dispatch.
30-day returns on stock items in original condition. Free return shipping if the item arrives damaged or doesn't match the listing.
Warranty
This product is backed by our 5-year limited warranty against manufacturing defects in materials and workmanship.
Warranty covers structural integrity, finish, and hardware. Normal wear, damage from improper installation, and modifications void coverage.
To file a claim, email warranty@exceptionalfire.com with your order number and photos of the issue.
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Frequently asked questions
Vented vs. ventless gas logs — which is right for me?
Vented gas logs require a working chimney/flue (open damper during use). They produce a more realistic, taller flame and expel combustion byproducts outdoors. Ventless (vent-free) gas logs burn cleaner so they don't require a flue — but they release combustion moisture and trace byproducts into the room. Vented = more realistic look + fully outdoor exhaust. Ventless = higher heat efficiency + flexible install but check local codes (some jurisdictions restrict ventless).
Are ventless gas logs safe?
Ventless gas logs sold in the US must include an oxygen depletion sensor (ODS) by design — the unit shuts off automatically if room oxygen drops below safe levels. Most also include built-in carbon monoxide protections. To use safely: install a CO detector in the room, follow the BTU sizing limits for your room volume, crack a window if running for extended periods, and don't run continuously for more than the manufacturer's stated maximum (typically 4 hours). Some states and municipalities do not permit ventless installation — check your local code.
Can I use gas logs in my wood-burning fireplace?
Yes — vented gas logs are designed to drop into a working masonry or pre-fab wood-burning fireplace. The chimney/flue must be inspected and verified working (open damper during use). You'll also need a gas line run to the firebox if one isn't already there. Always have a licensed gas plumber install the line and have a hearth professional install and test the burner.
How do I light gas logs?
Most modern gas log sets use a millivolt valve with a wall switch or remote, or a match-light system where you ignite a pilot manually with a match. Check your specific set's manual. For first lighting after install, follow the manufacturer's burn-in procedure (typically 4–6 hours total of staged burns) to cure the logs and burner coatings before regular use.
Free shipping and warranty?
Free freight shipping on all orders, contiguous US. Most gas log sets carry a 5-year warranty on the burner and a limited lifetime warranty on the ceramic logs against defects (warranty terms vary by manufacturer — full details on each product page). 30-day return window on unused, uninstalled gas log sets.