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Superior Emberwood Split Vent-Free Gas Logs
Superior Emberwood Split 18" Vent-Free Gas Logs LNF18ES
The Superior Emberwood Split 18" Vent-Free Gas Logs LNF18ES combine detailed cast refractory split-oak logs with the Nature-Flame burner design for tall natural yellow flames, a flickering ember bed, and a traditional wood-fire appearance. The 18-inch Nature-Flame configuration provides up to 30,000 BTU, depending on the selected fuel and control configuration.
Your fireplace meets the minimum 26" front width × 17" rear width × 17" height × 15" depth.
Your burner is one of the manufacturer-approved 18-inch Nature-Flame/NF models.
You have selected the correct Natural Gas or Liquid Propane configuration.
You have selected the appropriate millivolt or electronic control configuration.
Your intended vent-free or vented installation complies with manufacturer instructions and applicable codes.
Do Not Assume
That every 18-inch gas-log burner is compatible with LNF18ES.
That Natural Gas and Liquid Propane models are interchangeable.
That minimum firebox size alone confirms installation suitability.
That the burner, optional controls, or damper clamp are automatically included.
That logs or ember media can be rearranged outside the approved placement.
Compatibility requirement: The LNF18ES is not a universal replacement gas log set. Install it only with the specific approved 18-inch Nature-Flame/NF burner models identified by the manufacturer.
Emberwood Split Overview
The Emberwood Split combines the visual character of freshly split oak with the flame presentation and heating capability of Superior's Nature-Flame gas log platform.
The cast refractory logs reproduce deep wood grain, pronounced bark textures, exposed split surfaces, naturally fractured edges, and realistic coloration. A wood-burning grate appearance reinforces the look of a traditional fireplace.
The Nature-Flame burner uses varied flame movement and a flickering ember bed to produce tall natural yellow flames around the engineered log arrangement.
Superior Emberwood Split LNF18ES at a Glance
Product Type
Vent-Free Gas Log Set
Style
Single Sided / Front-View
Log Material
Cast Refractory
Fuel Options
Natural Gas or Liquid Propane
Control Options
Millivolt or Electronic
Warranty
5-Year Limited Warranty
Firebox Fit & Burner Compatibility
Correct fit requires both sufficient firebox dimensions and an approved burner. Satisfying only one of these requirements does not establish compatibility.
Minimum Firebox Dimensions
Requirement
LNF18ES Minimum
Log Size
18"
Front Width
26"
Rear Width
17"
Height
17"
Depth
15"
Firebox measurement is only the first check. Fireplace construction, clearances, fuel supply, ventilation requirements, appliance location, and applicable codes must also comply with the instructions for the selected configuration.
Approved LNF18ES Burner Models
Natural Gas / Millivolt
NATUREFLAME18MN NF18MN
Natural Gas / Electronic
NATUREFLAME18EN NF18EN
Propane / Millivolt
NATUREFLAME18MP NF18MP
Propane / Electronic
NATUREFLAME18EP NF18EP
Do not install the LNF18ES on another burner. Installation on a burner other than the specifically identified models is prohibited.
A unique pan burner creates varied flame movement around the engineered log arrangement.
Flickering Ember Bed
Glowing ember material adds visual depth beneath and around the logs.
Traditional Grate Look
The system incorporates the appearance of a conventional wood-burning fireplace grate.
Heater-Rated Design
Nature-Flame models are heater rated with 99% heat efficiency according to the supplied manufacturer literature.
Vented-Use Capability
The series is also listed for appropriate vented fireplace applications when installed according to manufacturer requirements.
Engineered Log & Ember Placement
The Emberwood Split logs form a complete engineered arrangement. Individual logs locate on specific burner pins, brackets, slots, and supporting logs to establish the intended flame presentation.
Do not modify, substitute, or arbitrarily rearrange the logs. The complete log set must be positioned exactly as specified in the applicable log-placement instructions.
The manufacturer's log-placement instructions specify glowing embers behind the front burner ports, followed by platinum embers positioned over the glowing ember material.
Keep burner ports clear. Do not place ember material over burner ports. All ember material must be positioned according to manufacturer instructions.
Fuel, Control & BTU Configuration
Fuel type and control type are separate product-selection decisions. Confirm both before ordering because they affect compatibility, BTU input, controls, and installation requirements.
Natural Gas
Natural Gas configurations are designed specifically for an approved natural gas supply.
Liquid Propane
Liquid Propane configurations are designed specifically for an approved propane/LP supply.
Millivolt Control
Millivolt configurations are remote ready for approved optional remote and wall controls.
Electronic Control
Electronic configurations include an EcoFlow touchscreen remote according to the supplied product information. The control provides Manual and Thermostat modes, On/Off operation, and three flame-height settings.
Fuel configurations are not interchangeable. Do not use a Natural Gas configuration with Liquid Propane or a Propane/LP configuration with Natural Gas.
18" Nature-Flame BTU Ratings
Control Configuration
Natural Gas
Liquid Propane
Millivolt
30,000–21,000 BTU
29,000–21,000 BTU
Electronic
30,000–22,000 BTU
30,000–22,000 BTU
Use the rating for the exact configuration being purchased. Do not apply one BTU range to every LNF18ES fuel and control combination.
Vent-Free & Vented Applications
Vent-Free Operation
The Nature-Flame Emberwood Split system is classified primarily as a vent-free fireplace gas log system.
Vent-free operation depends on the specific appliance configuration, fireplace, room conditions, installation requirements, and applicable codes.
Vented Operation
The supplied manufacturer literature also lists the Nature-Flame series for appropriate vented fireplace applications.
For an applicable vented installation, a damper clamp is required and sold separately.
Available Control Accessories
Control compatibility depends on the selected Nature-Flame configuration. The links below are the manufacturer control references supplied with the original product content.
The LNF18ES is not a decorative log set that can simply be placed into any fireplace. Correct installation requires verification of the approved burner, firebox dimensions, fuel configuration, gas supply, clearances, burner installation, log placement, ember placement, ventilation requirements, and applicable codes.
Qualified installation required: Installation and service must be performed by a qualified installer, service agency, or gas supplier.
Required Practices
Read the complete burner and log-placement instructions.
Confirm the correct Natural Gas or Liquid Propane configuration.
Use only an approved burner.
Position every log exactly as instructed.
Keep burner ports unobstructed.
Keep the fireplace off and cold during log installation or repositioning.
Allow logs to cool before handling.
Install any required safety screen, guard, or barrier before operation.
Follow applicable local codes and manufacturer requirements.
Prohibited or Incorrect Practices
Installing the LNF18ES on an unapproved burner.
Modifying or arbitrarily rearranging the logs.
Using the set as a source of individual replacement logs.
Placing glowing embers over burner ports.
Installing or repositioning logs while the fireplace is hot.
1 set of applicable installation and log-placement instructions.
Do not assume additional components are included. The burner assembly, optional remote controls, wall controls, damper clamp, or other accessories are not identified as part of the dedicated LNF18ES log-set package unless specifically included with the configuration being purchased.
Complete-Set Requirement
The manufacturer identifies the LNF18ES as a complete log set. It must not be used as a source of individual replacement logs.
When replacing an existing compatible set, remove the complete existing set before installing the new LNF18ES arrangement. Do not mix individual LNF18ES logs with an existing or unapproved log set.
Superior Emberwood Split LNF18ES Specifications
Product
Brand
Superior Fireplaces
Product
Emberwood Split
Model
LNF18ES
Series
Nature-Flame
Product Category
Fireplace Log Sets
Product Type
Vent-Free Gas Logs
Vent Type
Vent Free
Style
Single Sided / Front-View
Construction & Size
Log Size
18"
Log Material
Cast Refractory
Fuel & Controls
Fuel Options
Natural Gas or Liquid Propane, depending on selected configuration
Control Options
Millivolt or Electronic
Maximum Input
Up to 30,000 BTU, depending on configuration
Minimum Firebox Dimensions
Front Width
26"
Rear Width
17"
Height
17"
Depth
15"
Warranty
Warranty
5-Year Limited Warranty
Manufacturer Manuals & Technical Resources
Use the applicable manufacturer documentation to confirm specifications, burner compatibility, installation requirements, controls, log placement, and operating instructions before installation.
The Superior Emberwood Split 18" LNF18ES is suited to projects requiring an approved 18-inch Nature-Flame gas log arrangement with realistic cast refractory split-oak logs, a traditional front-view presentation, natural yellow flames, and a flickering ember bed.
It is appropriate only when the fireplace meets the required dimensions, the burner is one of the approved Nature-Flame/NF models, and the correct Natural Gas or Liquid Propane and millivolt or electronic configuration has been selected.
It is not appropriate as a universal replacement log set or as a source of individual replacement logs. Burner compatibility, fuel type, log placement, ember placement, clearances, ventilation requirements, and qualified installation should all be confirmed before purchase.
Superior Emberwood Split LNF18ES FAQs
What size fireplace does the Emberwood Split LNF18ES require?
The minimum firebox dimensions are 26" front width × 17" rear width × 17" height × 15" depth. Meeting these dimensions does not replace the other manufacturer clearance and installation requirements.
Which burners are compatible with the LNF18ES?
The LNF18ES is approved for the specified NATUREFLAME18 and NF18 Natural Gas and Propane millivolt/electronic models listed above. Do not install the log set on an unapproved burner.
Can I use the same LNF18ES configuration for Natural Gas and Liquid Propane?
No. Natural Gas and Liquid Propane are separate fuel-specific configurations. Order the version that matches the installation's fuel supply.
How many BTUs does the 18" Nature-Flame system produce?
The system provides up to 30,000 BTU, with the exact range determined by fuel and control configuration. Use the rating for the exact model being purchased.
Does the LNF18ES include a remote control?
Millivolt configurations are remote ready for approved optional controls, while electronic configurations include an EcoFlow touchscreen remote according to the supplied product information.
Can the Emberwood Split be used in a vented fireplace?
Yes, in an appropriate vented application installed according to manufacturer requirements. A damper clamp is required and sold separately.
Can individual LNF18ES logs be replaced, rearranged, or modified?
No. LNF18ES is a complete engineered log set, and the logs must be installed in the approved arrangement without modification.
Does the LNF18ES package include the burner assembly?
The supplied package information identifies the complete log set and installation instructions. Do not assume that the burner, remote controls, wall controls, damper clamp, or other accessories are included unless the exact configuration states that they are.
Final Before-Order Checklist
Confirm
Model: LNF18ES.
Minimum firebox dimensions are satisfied.
The burner model is specifically approved.
The correct Natural Gas or Liquid Propane version is selected.
The correct millivolt or electronic control type is selected.
The applicable BTU range has been verified.
Included and optional accessories are understood.
The intended vent-free or vented application is permitted.
Professional installation requirements can be met.
Avoid These Ordering Errors
Ordering by 18" size alone without checking burner compatibility.
Using overall fireplace space instead of the usable firebox measurements.
Ordering the wrong fuel configuration.
Assuming every control configuration includes the same remote.
Assuming the burner or damper clamp is included.
Mixing LNF18ES logs with another log set.
Changing the manufacturer-approved log or ember placement.
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Great customer service for hard to get refractory brick back
I was able to get a Novus 33 in brick refractory back for my NG Novus fireplace insert. Novus is a high demand item and Flame authority was only supplier without a huge delay from manufacturer. I recommend them for all fireplace needs.
Scott DiBert
10/07/2023
Great service and great product
Tia Short
03/29/2023
Nice and easy
Product is great, free shipping was good, and unpacking and installing it was easy. Customer support was great too, both with the sales and shipping carrier. After much research…the Modern Flames Redstone is the one.
Ken Shuba
02/14/2023
A+ = both the sale, the shipping process, and the product
A+ = both the sale, the shipping process, and the product
Scott Werley
12/26/2022
Great Customer service
I purchased burner and fire box. I emailed and spoke with Jim . He helped me from start to finish. Great service
Scott G
12/19/2022
Beautiful Mantel
The mantel required a little bit of sanding and prep before painting, but was good quality. Flame Authority did an excellent job shipping and it arrived by freight in perfect condition.
The mantel assembled well. I ended up using some construction adhesive to glue the legs on to make it a little more sturdy. I cut pocket holes in the top to attach it to the wall.
Very happy with our purchase!
Ryan George
12/17/2022
Blaze Pro Portable Grill
I shopped for a grill for two people. I want it to last for ten years or more. I want it to get really hot for grilling steaks after they have been cooled sous vide. I want it to be useful also for lower temp cooking. This Blaze grill is perfect for me and my wife. Our purchase through Flame Authority was completed with no problems. I am totally satisfied with this grill and highly recommend it for anyone with similar needs.
Mary Ann
10/23/2022
Came as advertised and without any delays. Arrived quickly. No issues and would buy from flame authority again.
Brian McDonald
08/03/2022
I wanted to make sure of the size and features of this oven. I called Flame Authority and Mary answered the call. She gave me all the details and I was really amazed coz she really knows what she is selling. Expert with sales and communication. Thumbs Up!
James N. Johnson
07/12/2022
Great heating stove
I bought the stove couple weeks ago and ended up having a chance running it a few days I am very pleased with the outcome of the amount of heat it gets out also with the amount of hours it burns at least eight hours. I would recommend this for anyone who is looking for hours of heat output. At first when I bought it I didn’t quite know if mine hopes will be for filled but now they are happy with it. I would recommend this to anyone as a trusted tester of it I am very pleased of the outcome it rains.!
Vladimir Novik
04/25/2022
Nice company to work with and an even better fireplace for our home
Nice , polite and helpful, when you would call with questions.Fireplace looks nice and throws a decent amount of heat , just a bit of a delay in delivery. Ended up getting it End of January, right before guests arrived. But still only took 3 weeks to get. Thank you Flame Authority !!!
Chelyn Andrea
02/02/2022
Stunning Fireplace
I didn't expect to have this fireplace earlier than the lead time they promised. It looks stunning in my living room and now we are prepared for the upcoming winter season! I am happy with all the updates! Customer service representatives keep on updating me with the process of my order until delivery they are checking it for you! 10 stars for Flame Authority!
sample
09/27/2021
Beautiful
Simply beautifully designed. Very efficient. Looks gorgeous in our mid century modern home in a corner space. Will save us $$$ on electric heat bills and is easy to clean with fireplace glass cleaner.
Hayley Severns
09/03/2021
Great Customer Service
I believe it was David Novak that helped me. Someone ALWAYS answered the phone and located this burner when I couldn't find it anywhere else. It almost seemed too good to be true. But it wasn't. The burner is now nestled in my new outdoor kitchen and am very pleased.
Olivia Pierce
06/29/2021
Thank you for a very smooth transaction. the remote is very useful. It is very easy to install
