Grand Canyon Vulcan Variable Electronic Vent Less Burner
Grand Canyon Vulcan 24"/30" Variable Electronic Vent Less Burner System – VFVUL24/30E
The Grand Canyon Vulcan 24"/30" Variable Electronic Vent Less Burner System VFVUL24/30E combines automatic electronic pilot ignition, puck-style remote operation, variable flame-height adjustment, an Oxygen Depletion Sensing safety pilot, and a deep ember-bed presentation for compatible 24" or 30" Grand Canyon vent-free gas log sets. Available in dedicated Natural Gas and Propane models, the burner operates from 19,000 BTU on low to 37,000 BTU on high.
Series
Vulcan
Model Family
VFVUL24/30E
Compatible Logs
24" or 30"
BTU Range
19,000–37,000
Control Type
Variable Electronic
Ignition
Automatic Electronic
Remote
Puck-Style
Gas Logs Included
No
Important: Burner System Only – Gas Logs Sold Separately
The VFVUL24/30E is the Vulcan burner system. A compatible Grand Canyon 24" or 30" vent-free gas log set is required to complete the fireplace presentation and must be purchased separately.
Electronic Ignition with Remote Variable Flame Control
The VFVUL24/30E is designed for buyers who want more control than a basic On/Off vent-free burner system.
Its Variable Electronic control configuration combines automatic electronic pilot ignition with a puck-style remote that allows the flame height to be increased or decreased during operation.
The burner also creates the traditional Grand Canyon gas-fire appearance with its grate, flame pattern, lava rock, glowing ember media, platinum embers, and compatible refractory log set.
System planning: Select the burner fuel, compatible log size, log style, and fireplace configuration as one complete system. The VFVUL24/30E is available in fuel-specific Natural Gas and Propane versions.
Grand Canyon VFVUL24/30E at a Glance
Brand
Grand Canyon Gas Logs
Product Type
Vent-Free Gas Burner System
Control Type
Variable Electronic
Safety Pilot
Oxygen Depletion Sensing / ODS
Compatible Log Sizes
24" or 30"
Is the Grand Canyon VFVUL24/30E Right for Your Fireplace?
Best For
- Buyers wanting electronic ignition instead of a manually lit pilot.
- Users who want remote variable flame-height adjustment.
- Compatible 24" or 30" Grand Canyon vent-free gas log sets.
- Natural Gas installations using model VFVUL24/30EN.
- Propane installations using model VFVUL24/30EP.
- Qualifying vent-free applications where permitted.
- Approved vented decorative applications.
- Fireplaces meeting the minimum dimensions for the selected log size.
Consider Another Burner If
- You expect the decorative gas logs to be included.
- Your fireplace does not meet the minimum dimensions.
- Your fireplace manufacturer prohibits unvented gas logs.
- You need to convert the burner between Natural Gas and Propane later.
- You do not need electronic ignition or remote flame adjustment.
- Vent-free operation is prohibited at the installation location.
- You cannot provide adequate combustion and ventilation air.
Why Choose the Grand Canyon Vulcan VFVUL24/30E?
Variable Electronic Control
The burner uses an electronic control configuration designed for remote flame-height operation.
Automatic Electronic Pilot Ignition
The system automatically initiates pilot ignition as part of its electronic startup sequence.
Puck-Style Remote
The included remote is used to operate the burner and raise or lower the flame.
19,000–37,000 BTU Range
Both Natural Gas and Propane configurations operate from 19,000 BTU on low to 37,000 BTU on high.
ODS Safety Pilot
The Oxygen Depletion Sensing pilot monitors available oxygen during vent-free operation.
Deep Ember-Bed Presentation
Lava rock, glowing/black ember media, and platinum embers support a traditional gas-fire appearance.
Natural Gas & Propane Models
VFVUL24/30EN
Fuel: Natural Gas
Select this configuration when the available fuel supply is Natural Gas.
VFVUL24/30EP
Fuel: Propane / LP
Select this configuration when the available fuel supply is regulated Propane.
No field conversion: Grand Canyon specifies that the appliance is not field-convertible. The gas supply must match the fuel type identified on the burner rating plate.
Propane installation: The LP source must be regulated. Do not connect the appliance directly to an unregulated LP tank or portable LP cylinder.
Minimum Fireplace Size Requirements
The VFVUL24/30E supports compatible 24" or 30" Grand Canyon vent-free log sets, but the minimum firebox opening changes with log size.
| Compatible Log Size |
Minimum Front Width |
Minimum Rear Width |
Minimum Depth |
Minimum Height |
| 24" |
28" |
20" |
14" |
18" |
| 30" |
34" |
20" |
14" |
18" |
Measure before selecting logs: A firebox large enough for a 24" log set is not automatically large enough for the 30" configuration. Verify all four measurements.
BTU Output
| Fuel Type |
Low Setting |
High Setting |
| Natural Gas |
19,000 BTU |
37,000 BTU |
| Propane |
19,000 BTU |
37,000 BTU |
The published input ratings apply at elevations up to 2,000 feet. For installations above 2,000 feet, follow the manufacturer's instructions and applicable fuel-gas requirements.
Variable Electronic Ignition & Puck-Style Remote
The VFVUL24/30E uses Grand Canyon's Variable Electronic control configuration.
Automatic Pilot Ignition
The electronic system initiates the pilot automatically rather than relying on manual pilot lighting.
High-Flame Startup
After pilot ignition is confirmed, the main burner starts at maximum flame height.
Remote Flame Adjustment
The puck-style remote allows flame height to be increased or decreased.
Standby Operation
The main flame can be lowered until it goes out while leaving the pilot operating.
Oxygen Depletion Sensing Safety Pilot
The burner incorporates an Oxygen Depletion Sensing (ODS) pilot.
Grand Canyon states that the ODS monitors available oxygen in the room and shuts the burner system down before the oxygen level falls below 18%.
The pilot can only be relit when sufficient fresh air is available.
ODS does not eliminate ventilation requirements: Adequate combustion air, ventilation, room volume, and correct installation remain necessary for safe vent-free operation.
What's Included with the VFVUL24/30E?
Vulcan Burner Assembly
Main 24"/30" burner platform.
Variable Electronic Controls
Electronic operating system for ignition and flame adjustment.
Electronic Ignition Components
Components required for automatic electronic pilot ignition.
ODS Pilot
Oxygen Depletion Sensing safety pilot.
Puck-Style Remote
Remote operation and variable flame-height adjustment.
Connection Fittings
Applicable connection components supplied with the burner system.
Lava Rock
Decorative media for the fireplace floor and burner presentation.
Glowing / Black Embers
Ember media used to enhance the fire presentation.
Platinum Embers
Additional ember material used in the specified burner arrangement.
Damper Clamp
Included for applicable vented installation requirements.
Not included: Decorative Grand Canyon gas logs are sold separately.
Compatible Grand Canyon Gas Log Sets
The original Flame Authority product information identifies the following compatible log styles and sizes for the 24"/30" Vulcan burner system.
Vented & Vent-Free Applications
ANSI Z21.11.2
The Vulcan burner system is certified as an Unvented Room Heater for qualifying vent-free installations.
ANSI Z21.60
The Vulcan burner is also certified as a Vented Decorative Appliance when installed according to applicable vented requirements.
Local regulations control vent-free use: State and local codes determine whether unvented operation is permitted at the installation location.
If vent-free operation is not permitted, the system may be installed as a vented decorative appliance when the fireplace satisfies Grand Canyon's applicable chimney-height and permanent chimney-vent-opening requirements.
Approved Fireplace Types
Installation is limited to qualifying fireplace or firebox applications identified by Grand Canyon.
Masonry Fireplace
Appropriate solid-fuel-burning masonry fireplace.
UL 127 Factory-Built Fireplace
Qualifying factory-built fireplace whose instructions permit the installation.
Listed Ventless Firebox
Listed ventless firebox enclosure that meets Grand Canyon requirements.
Do not install the burner in a factory-built fireplace whose instructions prohibit unvented gas logs.
Vent-Free Combustion-Air & Room Requirements
When operated in an unvented configuration, the VFVUL24/30E uses air from the room for combustion.
Grand Canyon references the National Fuel Gas Code definition of an unconfined space as generally providing at least 50 cubic feet of room volume per 1,000 BTU/hr of total appliance input.
At 37,000 BTU maximum input: Room volume and any other gas appliances in the same communicating space must be considered when evaluating combustion-air requirements.
Do not install the burner as an unvented appliance in a confined or unusually tight space unless the required additional combustion and ventilation provisions are provided.
Important Fireplace Clearances
| Combustible Sidewall |
Fireplace opening at least 6" away |
| Ceiling |
At least 42" above top of fireplace opening |
| Combustible Flooring |
If burner is at floor level or less than 6" above combustible flooring, provide at least 12" of noncombustible material |
| Above Fireplace Without Hood |
At least 12" of noncombustible or heat-resistant material |
| Above Fireplace With Hood |
At least 10" of noncombustible or heat-resistant material |
Factory-built fireplace: Where the fireplace manufacturer provides approved clearance requirements, follow those requirements.
If minimum clearances cannot be met: Grand Canyon instructs that the burner system must be operated with the chimney flue damper open.
Fireplace Glass Door Requirement
Glass fireplace doors must remain fully open during vent-free operation.
Do not operate the VFVUL24/30E as an unvented appliance with the doors closed. Closed doors can interfere with proper combustion and burner operation.
Gas Pressure Requirements
| Specification |
Natural Gas |
Propane |
| Typical Outlet Pressure – High |
3.5" w.c. |
10.0" w.c. |
| Minimum Inlet Pressure |
5" w.c. |
11" w.c. |
| Maximum Inlet Pressure |
10.5" w.c. |
13" w.c. |
Professional Installation Required
Grand Canyon requires installation and service by a qualified professional service technician, service agency, gas supplier, or otherwise qualified professional installer.
The installer should verify:
Fuel Configuration
Correct VFVUL24/30EN or VFVUL24/30EP model.
Gas Supply Pressure
Confirm supply pressure matches manufacturer requirements.
Fireplace Dimensions
Verify front width, rear width, depth, and height.
Fireplace Suitability
Confirm the firebox is an approved installation type.
Combustion Air
Verify adequate combustion and ventilation air.
Clearances
Confirm required distances to combustible construction.
Burner Position
Position the burner correctly within the firebox.
Gas Connections
Complete and verify all gas connections and leak testing.
Burner Media
Install ember media and lava rock correctly.
Log Placement
Install the selected compatible log set according to its instructions.
Pilot & Burner Operation
Verify proper ignition and burner flame operation.
Code Compliance
Confirm the installation complies with applicable requirements.
Correct Log Placement Matters
Compatible 24" or 30" Grand Canyon logs must be installed according to the placement instructions for the exact log style selected.
Bottom logs must be properly seated in their designated grooves or locating points, and the log arrangement must preserve the intended flame paths.
Incorrect log placement can cause improper combustion and sooting. Flames should not improperly strike the logs.
Log placement should be checked during installation and periodically during routine fireplace maintenance.
Care & Maintenance
Grand Canyon specifies regular cleaning and professional service for its vent-free burner systems.
Annual Professional Service
The appliance should be inspected and serviced at least once per year.
Burner Area
Keep burner and control areas clean.
ODS Pilot
Inspect and clean the ODS safety pilot as required.
Burner Ports
Check burner ports for lint, debris, and obstructions.
Flame Pattern
Verify the burner flame pattern during service.
Log Placement
Confirm the compatible logs remain correctly positioned.
Before cleaning or service: Turn the burner system off and allow it to cool.
Complete Grand Canyon VFVUL24/30E Technical Specifications
| Brand |
Grand Canyon Gas Logs |
| Series |
Vulcan |
| Product Type |
Vent-Free Gas Burner System |
| Model Family |
VFVUL24/30E |
| Natural Gas Model |
VFVUL24/30EN |
| Propane Model |
VFVUL24/30EP |
| Fuel Type |
Natural Gas or Propane, Model Dependent |
| Fuel Conversion |
Field Conversion Not Permitted |
| Compatible Log Sizes |
24" or 30" |
| Control Type |
Variable Electronic |
| Ignition |
Automatic Electronic Pilot Ignition |
| Pilot Type |
Oxygen Depletion Sensing / ODS |
| Natural Gas Input |
19,000 BTU Low / 37,000 BTU High |
| Propane Input |
19,000 BTU Low / 37,000 BTU High |
| Remote Control |
Puck-Style Remote |
| Flame Adjustment |
Variable Flame-Height Control |
| 24" Log Minimum Fireplace |
28" Front × 20" Rear × 14" Depth × 18" Height |
| 30" Log Minimum Fireplace |
34" Front × 20" Rear × 14" Depth × 18" Height |
| NG High Outlet Pressure |
3.5" w.c. |
| NG Inlet Pressure |
5" Minimum / 10.5" Maximum w.c. |
| LP High Outlet Pressure |
10.0" w.c. |
| LP Inlet Pressure |
11" Minimum / 13" Maximum w.c. |
| Certification |
ANSI Z21.11.2 / ANSI Z21.60 |
| Gas Logs Included |
No – Sold Separately |
| Installation |
Qualified Professional Installation Required |
Flame Authority Expert Recommendation
Choose the Grand Canyon VFVUL24/30E when you want a Vulcan vent-free burner with automatic electronic ignition and true remote flame-height adjustment rather than simple On/Off control.
Its 19,000–37,000 BTU range, puck-style remote, ODS safety pilot, 24"/30" log compatibility, dual vent-free/vented certification, and deep ember-bed presentation make it a flexible platform for qualifying fireplace installations.
The most important decision is sizing the complete system correctly. Confirm the fireplace front width, rear width, depth, height, desired 24" or 30" log set, fuel supply, local vent-free requirements, combustion-air availability, and approved fireplace type before ordering.
Select VFVUL24/30EN for Natural Gas or VFVUL24/30EP for Propane. Do not plan on converting the burner later because field conversion is not permitted.
Official Manufacturer Resources
Grand Canyon Vent Less Logs Catalog
Compatible Vent Less log styles, sizing, product-family information, and Vulcan system options.
Grand Canyon Vent Free Burner System Installation & User's Manual
Fireplace sizing, fuel requirements, Variable Electronic controls, ODS safety, combustion air, clearances, vented and vent-free operation, gas pressures, maintenance, and professional installation.
Need Help Choosing the Right Configuration?
Need assistance confirming fuel type, fireplace dimensions, compatible logs, or installation configuration?
Call Flame Authority
+1-800-923-4556
Email Flame Authority
support@flameauthority.com
Grand Canyon VFVUL24/30E FAQs
Is the Grand Canyon VFVUL24/30E a vent-free gas burner?
Yes. It is designed for qualifying vent-free installation when the fireplace, room volume, combustion-air requirements, and local regulations satisfy Grand Canyon requirements.
Can the VFVUL24/30E also be installed as a vented gas burner?
Yes. The Vulcan system is also certified as a vented decorative appliance when installed according to the manufacturer's applicable chimney and permanent vent-opening requirements.
Are gas logs included with the VFVUL24/30E?
No. This product is the burner system. Compatible Grand Canyon 24" or 30" gas logs are sold separately.
What size logs work with the VFVUL24/30E?
The burner accepts compatible 24" or 30" Grand Canyon vent-free log sets. Select the log size only after confirming the fireplace dimensions.
What is the BTU output of the VFVUL24/30E?
The burner operates from 19,000 BTU on low to 37,000 BTU on high for both Natural Gas and Propane configurations.
Do the published BTU ratings apply at high elevation?
The supplied product information states that the published ratings apply at elevations up to 2,000 feet. Above that elevation, follow the manufacturer instructions and applicable fuel-gas requirements.
Which model is for Natural Gas?
VFVUL24/30EN is the Natural Gas configuration.
Which model is for Propane?
VFVUL24/30EP is the Propane configuration.
Can the VFVUL24/30E be converted from Natural Gas to Propane?
No. Grand Canyon states that field conversion is not permitted. Order the model that matches the available fuel supply.
Can the Propane model connect directly to an LP cylinder?
No. The LP source must be regulated. Do not connect the appliance directly to an unregulated LP tank or portable LP cylinder.
What minimum fireplace size is required for a 24" log set?
A 24" configuration requires at least 28" front width, 20" rear width, 14" depth, and 18" height.
What minimum fireplace size is required for a 30" log set?
A 30" configuration requires at least 34" front width, 20" rear width, 14" depth, and 18" height.
Does the VFVUL24/30E include a remote control?
Yes. The Variable Electronic model includes a puck-style remote for burner operation and variable flame-height adjustment.
Does the remote only turn the burner On and Off?
No. The supplied source states that the VFVUL24/30E remote can raise or lower the flame height.
What does the ODS pilot do?
The Oxygen Depletion Sensing pilot monitors available oxygen and shuts the burner system down before the oxygen level falls below 18%.
Does an ODS pilot mean the room needs no ventilation?
No. Adequate combustion air, ventilation, room volume, and correct installation remain necessary for vent-free operation.
Can the VFVUL24/30E be installed in any fireplace?
No. Installation is limited to qualifying masonry fireplaces, qualifying UL 127 factory-built fireplaces, or listed ventless firebox enclosures that meet Grand Canyon requirements.
Can fireplace glass doors remain closed during vent-free operation?
No. Grand Canyon requires the fireplace glass doors to remain fully open while the burner operates in a vent-free configuration.
What sidewall clearance is required?
The fireplace opening must be at least 6 inches from a combustible sidewall unless an approved factory-built fireplace specifies otherwise.
What ceiling clearance is required?
The source specifies at least 42 inches between the top of the fireplace opening and the ceiling.
What are the Natural Gas pressure requirements?
The source lists 5" w.c. minimum inlet pressure, 10.5" w.c. maximum inlet pressure, and approximately 3.5" w.c. high outlet pressure for Natural Gas.
What are the Propane pressure requirements?
The source lists 11" w.c. minimum inlet pressure, 13" w.c. maximum inlet pressure, and approximately 10.0" w.c. high outlet pressure for Propane.
Can I install the VFVUL24/30E myself?
No. Grand Canyon requires installation and service by a qualified professional.
Are vent-free burners allowed everywhere?
No. State and local codes determine whether vent-free operation is permitted. Verify requirements before purchasing the system specifically for unvented use.
How much room volume is required for vent-free operation?
The manufacturer references the National Fuel Gas Code standard of generally at least 50 cubic feet of room volume per 1,000 BTU/hr of aggregate appliance input when determining an unconfined space.
How often should the burner be professionally serviced?
Grand Canyon specifies professional inspection and service at least once per year. Additional cleaning can be required where lint, dust, or other debris accumulates.
Why does correct log placement matter?
Incorrect log placement can interfere with the designed flame paths, cause improper combustion, and contribute to soot. Always use the placement instructions supplied for the selected Grand Canyon log set.
Which compatible log styles are identified for this burner?
The supplied product information identifies Weathered Oak, Red Oak, and Split Oak options in compatible 24" and 30" sizes.
Can I use third-party controls or accessories?
Use only controls, parts, and accessories specifically listed or certified for the Grand Canyon burner system. The source states that unapproved components can affect operation and applicable warranties, certifications, or approvals.
Before You Order
Confirm Before Purchase
- You specifically want the VFVUL24/30E Variable Electronic burner system.
- You want automatic electronic ignition and remote flame-height adjustment.
- You will purchase a compatible 24" or 30" Grand Canyon gas log set separately.
- Your fireplace meets the minimum dimensions for the selected log size.
- You have selected VFVUL24/30EN for Natural Gas or VFVUL24/30EP for Propane.
- You understand that field fuel conversion is not permitted.
- The installation location permits the intended vent-free or vented configuration.
- The fireplace is an approved installation type.
- Adequate combustion and ventilation air can be provided.
- Required clearances to combustible construction can be maintained.
- Glass doors can remain fully open during vent-free operation.
- The selected gas logs can be installed according to their placement instructions.
- Qualified professional installation and annual service are planned.
Do Not Assume
- That the decorative gas logs are included.
- That every 24" or 30" fireplace opening automatically fits the corresponding log set.
- That Natural Gas and Propane models can be field converted.
- That Propane can be supplied directly from an unregulated cylinder.
- That vent-free operation requires no ventilation or room-volume planning.
- That vent-free installation is legal everywhere.
- That fireplace glass doors can remain closed.
- That compatible logs can be arranged however you prefer.
- That professional installation or annual service is optional.
- That unapproved third-party controls or accessories should be used.
Final planning check: Use the Grand Canyon Vent Less Logs Catalog to select the compatible log style and size, and the Grand Canyon Vent Free Burner System Installation & User's Manual to verify fireplace sizing, fuel configuration, gas pressure, ODS safety, combustion-air requirements, clearances, vent-free or vented operation, installation, maintenance, and service.
