Real Fyre G45 Triple T Vented Gas Burner
Real Fyre G45 Series 18/20" Triple T Vented Burner System – G45-18/20
The Real Fyre G45-18/20 Triple T Vented Burner System is designed for homeowners who want a fuller, more dimensional flame presentation in a properly vented fireplace. Its Triple T burner configuration combines the primary burner with an additional front burner section to create extra flame toward the front of a compatible Real Fyre gas log set.
Series
G45
Model
G45-18/20
Burner Size
18/20 Inches
Burner Design
Triple T
Application
Vented Decorative
Fuel Options
Natural Gas or Propane
Chimney Required
Yes
Log Set Included
No
Important: Compatible Real Fyre Gas Log Set Required – Sold Separately
The G45-18/20 is the burner system only. A compatible Real Fyre gas log set is required to complete the fireplace system and is sold separately.
Shop Compatible Real Fyre Log Sets
A Fuller Vented Flame Presentation with Real Fyre's Triple T Burner
The defining feature of the G45 Series is the additional front burner that supplements the primary flame area.
This Triple T configuration is designed to increase visible flame toward the front of the firebox, helping create a more active and dimensional gas-log presentation than a simpler single-burner arrangement.
The G45-18/20 is intended for a qualifying solid-fuel-burning fireplace with a working chimney flue and is available in different Natural Gas or Propane and ignition/control configurations.
Buying note: Fireplace dimensions, BTU input, fuel type, controls, and installation requirements vary by exact G45 configuration. Verify the specific model before ordering.
Real Fyre G45-18/20 at a Glance
Manufacturer
Robert H. Peterson Co.
Product Type
Vented Gas Log Burner System
Fuel Options
Natural Gas or Propane
Venting
Working Flue Required
Damper Position
Fully Open During Operation
Is the Real Fyre G45-18/20 Right for Your Fireplace?
Best For
- Qualifying solid-fuel-burning fireplaces with a working chimney flue.
- Buyers wanting a fuller flame presentation with extra front flame.
- Fireplaces that meet the minimum G45-18/20 dimensions.
- Natural Gas installations using an appropriate G45 configuration.
- Propane installations using an appropriate G45 configuration.
- Buyers who want match-lit, standing-pilot, remote, or electronic control options.
- Installations where a compatible Real Fyre log set will be purchased separately.
Consider Another System If
- You need a vent-free gas burner.
- Your fireplace does not have a working chimney and flue.
- Your fireplace cannot meet the required dimensions.
- Your chimney is less than 15 feet tall.
- Your fireplace recess or ash lip exceeds 3/4".
- You expect the gas logs to be included.
- You cannot keep the damper fully open during operation.
- You cannot arrange qualified professional installation.
Why Choose the Real Fyre G45 Triple T Burner?
Triple T Burner Design
A primary burner and additional front burner create more flame activity across the log presentation.
Enhanced Front Flame
The front burner adds visible flame toward the front of the firebox for a fuller appearance.
Glowing Ember Presentation
Fuel-specific burner media and glowing embers help create a realistic ember-bed effect.
18/20-Inch Burner Platform
Designed for compatible Real Fyre log sets sized for the G45-18/20 burner family.
Multiple Control Options
Available G45 configurations include manual, standing-pilot, remote, and electronic ignition options.
Vented Decorative Application
Designed for a qualifying fireplace with permanent chimney ventilation.
G45-18/20 BTU Ratings
The G45-18/20 input rating varies by burner and control configuration.
| G45-18/20 Configuration |
Natural Gas |
Propane |
| Manually Lighted Burner System |
75,000 BTU/hr |
50,000 BTU/hr |
| Regulated / Pilot-Control Burner System |
70,000 BTU/hr |
45,000 BTU/hr |
Verify the exact configuration: Use the product rating plate and the installation manual corresponding to the specific G45 burner being installed.
Natural Gas & Propane Configurations
The G45 Series is available in separate configurations for Natural Gas and Propane.
The gas supplied to the fireplace must match the fuel identified on the burner-system rating plate.
Do not install the wrong fuel version. Real Fyre states that applicable G45 appliances are not field-convertible for another gas type.
Gas Supply Pressure Requirements
| Fuel Type |
Minimum Inlet Pressure |
Maximum Inlet Pressure |
| Natural Gas |
5" w.c. |
10.5" w.c. |
| Propane |
11" w.c. |
13" w.c. |
The manufacturer specifies a minimum 1/2-inch interior-diameter gas supply pipe. Longer gas runs may require a larger line.
Professional gas planning: Gas-line sizing and available pressure should be confirmed before installation.
Burner Media & Flame Presentation
The G45 uses fuel-specific media to support proper flame distribution.
Natural Gas
Uses sand as the specified burner media.
Propane
Uses vermiculite as the specified burner media.
Glowing embers are installed over the applicable burner media according to the Real Fyre instructions.
Media placement matters: Correct placement affects flame distribution and burner operation. Follow the manual for the exact fuel and control configuration.
Will the Real Fyre G45-18/20 Fit Your Fireplace?
Required fireplace dimensions depend on whether the burner is manually lighted or uses a safety-pilot / regulated control system.
Manually Lighted G45-18/20
| Minimum Front Width |
24" |
| Minimum Rear Width |
20" |
| Minimum Depth |
13" |
| Minimum Height |
17" |
G45-18/20 with Safety Pilot / Regulated Control System
| Minimum Front Width |
30" |
| Minimum Rear Width |
24" |
| Minimum Depth |
13" |
| Minimum Height |
17" |
02 control models: Add 2 inches to both the applicable minimum front and rear fireplace widths.
Ash-lip limitation: Do not install the burner where the ash lip or recessed fireplace floor exceeds 3/4 inch.
Fireplace, Chimney & Venting Requirements
The G45 is a vented decorative gas burner system. It must be installed in a qualifying solid-fuel-burning fireplace with a working flue and noncombustible firebox construction.
Working Flue Required
The fireplace must provide chimney ventilation suitable for the installed burner.
Damper Fully Open
The chimney damper must be completely open whenever the G45 is operating.
Damper Clamp
The supplied damper clamp helps prevent complete closure of the damper.
15-Foot Minimum Chimney
Real Fyre specifies a minimum chimney height of 15 feet from the hearth to the chimney top.
Adequate Ventilation
Yellow decorative flames require adequate combustion and ventilation air.
Correct Firebox Size
The fireplace must satisfy the dimensions for the exact burner/control configuration.
G45-18/20 Minimum Chimney Damper Vent Opening
Real Fyre documents minimum permanent damper free-opening areas for regulated G45-18/20 configurations based on chimney height and fireplace construction.
| Chimney Height |
Factory-Built Fireplace |
Masonry-Built Fireplace |
| 15 ft. |
33 sq. in. |
44 sq. in. |
| 20 ft. |
27 sq. in. |
40 sq. in. |
| 30 ft. |
21 sq. in. |
36 sq. in. |
Damper position: These minimum free-opening values do not replace the requirement to keep the damper completely open while the gas appliance is operating.
G45-18/20 Control Options
Match Lit
Manual burner operation. The product configuration offered as Match Lit is for Natural Gas only.
-A Manual Valve
Manual valve with standing pilot.
-17 Variable Flame Remote
Millivolt valve with standing pilot and remote variable flame-height control.
-02 Electronic Ignition
Electronic valve with Intermittent Pilot Ignition and On/Off remote operation where equipped.
Control configuration matters: Fuel availability, battery requirements, fireplace width, operation, and components vary depending on the exact control system selected.
Battery Requirements for Applicable Controls
| 02 Burner System |
2 D Batteries |
| Remote Receiver |
4 AA Batteries |
| Remote Transmitter |
1 × 12V Battery |
Battery requirements apply only to the applicable electronic and remote-equipped configurations.
Compatible Real Fyre Gas Log Sets
The G45-18/20 burner does not include the decorative gas logs.
Real Fyre documentation shows the G45 burner family used with compatible log styles including Charred Oak, Charred Royal English Oak, Golden Oak Designer Plus, and Golden Oak.
Log placement matters: Follow the installation and placement instructions supplied with the exact Real Fyre log set selected for the G45 burner.
Browse Compatible Real Fyre Vented Gas Log Sets
Glass Fireplace Door Requirements
The G45 may be used in a qualifying fireplace with glass doors when the enclosure meets Real Fyre's ventilation requirements.
Glass doors must remain fully open whenever the burner is operating.
If the glass-door frame restricts airflow along the fireplace floor, sufficient openings must be present to provide adequate ventilation.
Professional Installation Requirements
Real Fyre specifies installation and service by a qualified professional service technician and identifies an NFI Certified or other qualified professional installer for installation and repair.
Verify Fireplace Dimensions
Check the required width, depth, and height for the selected configuration.
Verify Fuel
The burner must match the gas type available at the property.
Verify Gas Pressure
Confirm the required inlet pressure before installation.
Verify Venting
The chimney, damper, and permanent vent opening must meet manufacturer requirements.
Level Burner Pan
The burner pan must sit properly on the fireplace floor.
Leak-Test Gas Connections
All gas connections must be checked according to the applicable installation requirements.
Preparing an Existing Wood-Burning Fireplace
When installing the G45 in an existing solid-fuel-burning fireplace, the chimney flue, damper, and firebox should be thoroughly cleaned of:
- Soot
- Creosote
- Ashes
- Loose paint
- Other fireplace debris
The fireplace should also be inspected by a qualified chimney cleaner. Older fireplaces may require repairs before installation.
Important Operating & Safety Information
Attended Operation
Adults must be present whenever the gas appliance is operating.
Do Not Leave Unattended
Do not leave the burner operating unattended or while anyone is sleeping.
Use a Fireplace Screen
A fireplace screen must be in place while the burner is operating.
Maintain Combustion Air
Adequate combustion and ventilation air must be provided.
No Solid Fuels
Do not burn wood or other solid fuels while the decorative gas appliance is installed.
Keep Flammables Away
Keep combustible materials, gasoline, and flammable vapors or liquids away from the fireplace.
Flood or water exposure: Do not operate the appliance if any part has been underwater.
What's Required to Complete the Installation?
G45-18/20 Burner
The Real Fyre Triple T vented burner system.
Compatible Gas Logs
A qualifying Real Fyre log set, sold separately.
Correct Fuel Version
Natural Gas or Propane as required by the property.
Control Configuration
Match Lit, -A, -17, or -02 as applicable.
Working Fireplace & Flue
A qualifying solid-fuel-burning fireplace with permanent venting.
Qualified Installation
Professional installation and service by qualified personnel.
Real Fyre G45 Warranty Highlights
Real Fyre's vented product documentation lists a 10-year limited warranty for Peterson vented burner assemblies, excluding valves, pilots, and controls.
Control-system warranty periods vary by component and configuration.
Warranty guidance: Coverage is subject to the manufacturer's complete terms, intended residential use, proper installation, maintenance, approved components, proof of purchase, and exclusions.
Complete Real Fyre G45-18/20 Technical Specifications
| Manufacturer |
Real Fyre / Robert H. Peterson Co. |
| Series |
G45 |
| Model |
G45-18/20 |
| Product Type |
Vented Gas Log Burner System |
| Burner Design |
Triple T |
| Burner Size |
18/20 Inches |
| Application |
Vented Decorative Gas Fireplace Appliance |
| Fuel Options |
Natural Gas or Propane, Depending on Configuration |
| Manually Lighted Natural Gas Rating |
75,000 BTU/hr |
| Manually Lighted Propane Rating |
50,000 BTU/hr |
| Regulated Natural Gas Rating |
70,000 BTU/hr |
| Regulated Propane Rating |
45,000 BTU/hr |
| Manual Burner Minimum Front Width |
24" |
| Manual Burner Minimum Rear Width |
20" |
| Safety Pilot / Regulated Minimum Front Width |
30" |
| Safety Pilot / Regulated Minimum Rear Width |
24" |
| Minimum Fireplace Depth |
13" |
| Minimum Fireplace Height |
17" |
| 02 Model Width Adjustment |
Add 2" to Applicable Front & Rear Widths |
| Maximum Ash Lip / Recess |
3/4" |
| Minimum Chimney Height |
15 ft. |
| Natural Gas Inlet Pressure |
5" w.c. Minimum / 10.5" w.c. Maximum |
| Propane Inlet Pressure |
11" w.c. Minimum / 13" w.c. Maximum |
| Minimum Gas Supply Pipe |
1/2" Interior Diameter |
| Natural Gas Burner Media |
Sand |
| Propane Burner Media |
Vermiculite |
| Log Set Included |
No |
| Log Set Required |
Yes – Sold Separately |
| Damper Clamp |
Included as Documented by Real Fyre |
| Venting Requirement |
Working Flue Required; Damper Fully Open During Operation |
| Glass Fireplace Doors |
Must Remain Fully Open During Operation |
| Field Gas Conversion |
Not Permitted Where Stated by Applicable Instructions |
| Certification |
ANSI Z21.60 / CSA 2.26 for Applicable Certified Configurations |
| Installation |
Qualified Professional Installation Required |
Flame Authority Expert Recommendation
Choose the Real Fyre G45-18/20 when you have a properly vented wood-burning fireplace and want a more active flame presentation with additional flame toward the front of the logs.
Its Triple T burner design, multiple ignition/control configurations, Natural Gas and Propane availability, glowing ember presentation, and compatibility with multiple Real Fyre vented gas log styles make it a flexible choice for traditional decorative fireplace installations.
The most important buying step is selecting the exact configuration based on your fireplace. Confirm the front width, rear width, 13" minimum depth, 17" minimum height, 15-ft chimney minimum, gas type, gas pressure, control configuration, damper opening, and compatible Real Fyre log set.
If you need vent-free operation, this is not the correct burner family. The G45-18/20 is a vented decorative burner system.
Official Manufacturer Resources
Real Fyre Vented Product Catalog
G45 burner-family specifications, compatible vented log styles, control configurations, certifications, and warranty information.
Real Fyre G45 Installation & Owner's Manual
Regulated and controlled G45 installation, fireplace dimensions, damper-opening requirements, gas supply, controls, operation, safety, and maintenance.
Real Fyre G45 Manually Lighted Burner Installation & Owner's Manual
Match-lit G45 fireplace dimensions, gas supply, burner media, chimney requirements, operation, installation, and service guidance.
Real Fyre G45-18/20 FAQs
What is the Real Fyre G45-18/20?
The G45-18/20 is an 18/20-inch Triple T vented gas burner system designed for compatible Real Fyre gas logs in a qualifying solid-fuel-burning fireplace with a working flue.
Does the Real Fyre G45-18/20 include the gas logs?
No. A compatible Real Fyre gas log set is required and sold separately.
What makes the G45 Triple T burner different?
The G45 combines a primary burner with an additional front burner that produces extra flame toward the front of the firebox for a fuller presentation.
What size fireplace is required for a manually lighted G45-18/20?
The manually lighted configuration requires at least 24" front width × 20" rear width × 13" depth × 17" height.
What size fireplace is required for a pilot-controlled G45-18/20?
Safety-pilot and regulated configurations generally require at least 30" front width × 24" rear width × 13" depth × 17" height.
Do 02 control models require extra fireplace width?
Yes. Real Fyre specifies adding 2 inches to both the applicable minimum front and rear widths for 02 models.
How many BTUs does the G45-18/20 produce?
The manually lighted configuration is documented at 75,000 BTU/hr for Natural Gas and 50,000 BTU/hr for Propane. Regulated configurations are documented at 70,000 BTU/hr for Natural Gas and 45,000 BTU/hr for Propane.
Is the G45-18/20 available for Natural Gas and Propane?
Yes. The G45 Series includes Natural Gas and Propane configurations, depending on the exact model selected.
Can I convert a Natural Gas G45 burner to Propane?
Do not assume field conversion is permitted. Real Fyre states that applicable G45 appliances are not field-convertible, so the burner must match the available fuel.
Does the G45-18/20 require a chimney?
Yes. It is a vented decorative burner system intended for a qualifying fireplace with a working flue. Real Fyre specifies a minimum chimney height of 15 feet.
Does the fireplace damper need to remain open?
Yes. The chimney damper must remain completely open whenever the G45 burner is operating.
What minimum damper opening is required for a regulated G45-18/20?
At a 15-ft chimney height, Real Fyre documents 33 sq. in. for a factory-built fireplace and 44 sq. in. for masonry. At 20 ft., the listed values are 27 and 40 sq. in.; at 30 ft., 21 and 36 sq. in.
Can the G45-18/20 be installed vent-free?
No. The G45-18/20 covered here is a vented decorative gas burner system.
Can I use glass fireplace doors with the G45?
Yes, if the fireplace enclosure meets Real Fyre's ventilation requirements. The glass doors must remain fully open whenever the burner is operating.
What burner media does the G45 use?
Natural Gas models use sand, while Propane models use vermiculite. Glowing embers are installed according to the applicable burner instructions.
What control options are available for the G45-18/20?
Available configurations include Match Lit, -A manual valve with standing pilot, -17 millivolt standing-pilot variable-flame remote, and -02 electronic Intermittent Pilot Ignition.
Is the Match Lit configuration available for Propane?
The product source identifies the Match Lit configuration offered here as Natural Gas only.
Does the G45-18/20 require electricity?
Power requirements depend on the control configuration. Applicable electronic and remote systems use batteries as documented by Real Fyre.
What batteries are used by applicable G45 controls?
The supplied source identifies 2 D batteries for applicable 02 burner systems, 4 AA batteries for a remote receiver, and one 12V battery for the remote transmitter.
What gas pressure does the Natural Gas G45 require?
Real Fyre specifies 5" w.c. minimum and 10.5" w.c. maximum inlet pressure for Natural Gas.
What gas pressure does the Propane G45 require?
Real Fyre specifies 11" w.c. minimum and 13" w.c. maximum inlet pressure for Propane.
What size gas supply pipe is required?
Real Fyre specifies a minimum 1/2-inch interior-diameter gas supply pipe. A larger line may be necessary for longer gas runs.
Can the G45 be installed in a fireplace with an ash lip?
Only within the manufacturer limit. Do not install the burner where the ash lip or recess exceeds 3/4 inch.
Can I burn wood after installing the G45?
No. Real Fyre states that solid fuels must not be burned in a fireplace while the decorative gas appliance is installed.
Does the G45 require professional installation?
Yes. Real Fyre specifies installation and service by qualified professionals and identifies NFI Certified or other qualified professional installers for installation and repair.
Which gas logs work with the Real Fyre G45-18/20?
Use a Real Fyre gas log set specifically compatible with the G45 burner family. The log set is sold separately and must be installed according to its own placement instructions.
Is the G45-18/20 primarily a room heater?
No. Real Fyre identifies the G45 as a vented decorative gas appliance, so it is primarily selected for flame presentation and fireplace ambiance.
What warranty applies to the G45 burner?
Real Fyre's vented product documentation lists a 10-year limited warranty for Peterson vented burner assemblies, excluding valves, pilots, and controls, subject to the manufacturer's complete warranty terms.
Before You Order
Confirm Before Purchase
- You specifically need the G45-18/20 Triple T burner size.
- Your fireplace is a qualifying solid-fuel-burning fireplace with a working flue.
- Your chimney is at least 15 feet high.
- Your fireplace meets the minimum dimensions for the selected control configuration.
- The ash lip or recess does not exceed 3/4".
- The selected burner fuel matches your Natural Gas or Propane supply.
- The required gas pressure is available.
- The chimney damper can remain fully open during operation.
- The required permanent damper free-opening area can be maintained.
- Glass fireplace doors can remain fully open during burner operation.
- You have selected a compatible Real Fyre gas log set separately.
- Qualified professional installation has been arranged.
Do Not Assume
- That the decorative gas logs are included.
- That every G45-18/20 configuration has the same BTU rating.
- That all control options require the same fireplace width.
- That Natural Gas and Propane models can be freely field-converted.
- That the burner can be operated vent-free.
- That the chimney damper can be closed during operation.
- That glass fireplace doors can remain closed.
- That a chimney shorter than 15 feet meets the documented requirement.
- That wood can be burned while the gas appliance is installed.
- That professional installation is optional.
Final planning check: Use the applicable Real Fyre G45 manual for the exact Match Lit, -A, -17, or -02 configuration being purchased. Confirm fireplace dimensions, fuel type, BTU rating, gas pressure, damper free-opening area, chimney height, glass-door requirements, compatible log set, and professional installation before ordering.
