Indoor Vented Gas Log Burner – 3-Burner System - 18"–42"

Transform your fireplace into an extraordinary focal point with the Grand Canyon 3-Burner Indoor Vented Gas Log System. Designed to recreate the beauty of a traditional wood-burning fire, this premium burner system delivers a rich, multidimensional flame presentation with glowing embers and natural flame movement.

Unlike traditional dual-burner configurations, the Grand Canyon 3-Burner System features an evenly distributed rear burner, a dual-action middle burner, and a dedicated front ember-glow burner. Together, these components produce layered flames and a captivating ember bed that beautifully complements Grand Canyon's handcrafted gas log collections.

Engineered with a fully welded, sandless design and stainless steel chassis, the system is built for durability and reliable performance in approved indoor vented fireplaces.

Available in sizes from 18" to 42", with Natural Gas and Propane configurations, the 3-Burner System allows you to customize your fireplace with a compatible ignition and control package.

Features 

• Three-Burner Flame Design: Rear, middle, and ember-glow burners create a layered, natural-looking fire.
• Enhanced Flame Depth: Produces a fuller visual presentation around compatible gas logs.
• Dedicated Ember Burner: Creates the appearance of glowing embers at the front of the fireplace.
• Fully Welded Construction: Durable, sandless burner design.
• Stainless Steel Chassis: Engineered for long-term indoor fireplace use.
• Six Burner Sizes: Available in 18", 21", 24", 30", 36", and 42".
• Natural Gas or Propane: Select the approved configuration for your fuel source.
• Multiple Control Systems: Choose traditional manual operation or a compatible remote-control package.
• Concealed Pilot Mounting Brackets: Supports approved pilot configurations.
• Manufacturer Warranty: Limited lifetime warranty for qualifying indoor burner installations.

Choose Your Control System

Select the ignition and operating system that best suits your fireplace installation.

Control Type	Code	Description
Match Lit / Manual	ML (Store Label)	Traditional manual lighting for approved Natural Gas installations
Safety Pilot	SP	Standing pilot with manual ON/OFF and flame-safety protection
Millivolt Remote	MVK-GCRK	Standing pilot with remote ON/OFF operation
Modulating Millivolt Remote	MMVR	Remote operation with adjustable flame height
Battery Electronic Ignition + Remote	MVKEI-GCRK	Battery-powered electronic ignition with on-demand pilot and remote ON/OFF

 

Match Lit / Manual: A straightforward option for customers who prefer traditional manual fireplace operation. No remote or automatic ignition is included.

Safety Pilot (SP): Provides manual burner operation with a standing pilot and a safety valve designed to stop gas flow if the pilot flame is lost.

Millivolt Remote (MVK-GCRK): Allows convenient ON/OFF operation using a remote control while maintaining a standing pilot.

Modulating Millivolt Remote (MMVR): Offers remote-controlled flame-height adjustment for a more personalized fireplace experience.

Battery Electronic Ignition + Remote (MVKEI-GCRK): Provides remote ON/OFF operation with electronic ignition and an on-demand pilot, eliminating the need for a continuously burning standing pilot.

Control-system availability depends on burner size, fuel type, and valve BTU capacity. Not every combination is offered. Match Lit is a store selection label, not a confirmed manufacturer SKU suffix.

Specifications

Specification	Details
Manufacturer	Grand Canyon Gas Logs
Series	3BRN
Product Type	Indoor Vented Gas Log Burner
Burner Design	Three-Burner
Sizes	18", 21", 24", 30", 36", 42"
Fuel Options	Natural Gas / Propane
Construction	Fully Welded Stainless Steel Chassis
Gas Piping	½"
Gas Inlet	Left or Right
Flame Presentation	Rear Flames, Middle Flames & Front Ember Glow
Certification	ANSI Certified with Approved Control Systems
Installation	Indoor Vented Fireplace
Gas Logs Included	No
Warranty	Manufacturer Limited Lifetime – Qualifying Indoor Installations

Burner BTU Specifications

Size	Natural Gas	Propane
18"	46,000 BTU/hr	41,000 BTU/hr
21"	65,000 BTU/hr	60,000 BTU/hr
24"	74,000 BTU/hr	66,000 BTU/hr
30"	102,000 BTU/hr	91,000 BTU/hr
36"	111,000 BTU/hr	106,000 BTU/hr
42"	120,000 BTU/hr	121,000 BTU/hr

Published burner ratings are based on Grand Canyon's vented burner specification sheet. Verify the selected control package's rated capacity before ordering.

Minimum Fireplace Dimensions

Burner Size	Front Width	Rear Width	Depth	Height
18"	30"	18"	12"	14"
21"	33"	21"	12"	14"
24"	36"	24"	12"	14"
30"	42"	30"	14"	14"
36"	48"	39"	14"	14"
42"	54"	45"	14"	14"

These are manufacturer-published minimum dimensions for the standard burner configurations. Certain control assemblies or log arrangements may require additional clearance.

Compatible Grand Canyon Gas Logs – Sold Separately

Designed for select Grand Canyon vented gas log collections, including:

• Arizona Weathered Oak
• Arizona Weathered Oak Charred
• Western Driftwood
• Arizona Juniper
• Quaking Aspen
• Blue Pine Split

Compatibility must be verified for the specific log set, burner size, and control configuration.

What's Included

• Grand Canyon 3-Burner Assembly
• Lava Rock
• Decorative Black Embers
• Connection Fittings
• Flexible Gas Connection
• Damper Clamp
• Vermiculite for applicable Propane configurations
• Selected Control System

Not Included: Decorative gas logs and any optional accessories not specified in the selected package.

Installation & Safety

• Designed for approved indoor vented fireplaces only.
• Requires a properly functioning chimney and approved damper opening.
• Fireplace glass doors must remain open during operation, as required by the installation instructions.
• Select the correct Natural Gas or Propane configuration.
• Verify minimum fireplace dimensions and installation clearances.
• Match Lit configurations are intended only for approved applications; Propane requires an appropriate safety control.
• Installation by a qualified gas professional is recommended.
• Always follow Grand Canyon's installation and operating instructions.

Shipping & Warranty

Shipping & Delivery

At Eternal Flame Outdoors, we are committed to providing a seamless shopping and delivery experience.

FREE Standard Shipping: Available throughout the contiguous United States.

• Ready-to-Ship Products: Ready-to-ship products typically process within 2–5 business days.
• Made-to-Order Products: Made-to-Order products typically process within 4–6 weeks.
• Freight Delivery: Larger items may ship via curbside freight delivery.
• Shipping Updates: Tracking information will be provided once your order ships.

For questions regarding product availability, estimated delivery times, or special shipping arrangements, please refer to our Shipping Information.

Manufacturer Warranty

At Eternal Flame Outdoors, we proudly offer premium products from established manufacturers committed to quality and craftsmanship.

• Manufacturer Warranty: Products include applicable manufacturer warranty coverage, where offered.
• Warranty Assistance: Our customer service team is available to help you locate warranty information and understand the manufacturer's warranty claim process.

For specific warranty details, please refer to the manufacturer's warranty documentation or for complete details please refer to our Warranty Information.