Empire White Mountain Hearth Sassafras Gas Logs
Empire White Mountain Hearth LS24RS 24" Sassafras Refractory Gas Log Set
The Empire White Mountain Hearth LS24RS is a 24-inch, six-piece Sassafras refractory gas log set designed for a compatible 24" White Mountain Hearth Slope Glaze burner. Its hand-painted refractory logs create a traditional layered wood-fire appearance while the separately selected burner determines the fuel type, BTU input, ignition, controls, and vented or vent-free operating configuration.
Model
LS24RS
Manual Model
LS-24RS-2
Nominal Size
24"
Log Count
6 Pieces
Material
Refractory
Style
Sassafras
Required Burner
24" Slope Glaze
Burner Included
No
Important: Log Set Only — Burner Not Included
The LS24RS is the six-piece decorative refractory log set only. It does not contain the burner, gas valve, ignition system, fuel connection, or controls needed to create an operating gas fireplace.
Required component: A compatible 24-inch White Mountain Hearth Slope Glaze Burner is required. Verify the exact burner, fuel type, firebox, clearances, and installation configuration before ordering.
Traditional 24" Sassafras Refractory Log Presentation
The LS24RS is designed for buyers who want the substantial appearance of traditional refractory logs while maintaining flexibility over the final gas burner and control configuration.
Its six hand-painted logs create a layered Sassafras arrangement with separate front, rear, and upper pieces positioned according to Empire's manufacturer-defined layout.
When paired with the correct Slope Glaze burner, ceramic beads in the burner system help create flame movement around the log arrangement.
Empire LS24RS at a Glance
Brand
White Mountain Hearth by Empire Comfort Systems
Manual Designation
LS-24RS-2
Fuel
Natural Gas or LP via Selected Burner
Is the LS24RS Right for Your Fireplace?
Best For
- Buyers wanting a 24" Sassafras refractory appearance.
- Projects using a compatible 24" White Mountain Hearth Slope Glaze burner.
- Natural Gas configurations using the correct burner.
- LP / Propane configurations using the correct burner.
- Manual-control burner systems.
- Millivolt remote-ready burner systems.
- Variable-flame burner systems.
- Intermittent-pilot burner systems.
- Approved vented or vent-free applications where permitted.
Do Not Choose This Log Set If
- You need a complete gas-log system.
- You expect a burner or gas controls to be included.
- Your burner is not approved for the LS24RS.
- Your fireplace does not meet the selected burner's dimensional requirements.
- You need a different nominal log-set size.
- You intend to rearrange the logs.
- You need a vent-free installation in Canada.
What's Included?
Included
- Left rear refractory log
- Right rear refractory log
- Left front refractory log
- Right front refractory log
- Left top refractory log
- Right top refractory log
Required Separately
- Compatible 24" White Mountain Hearth Slope Glaze Burner
- Correct Natural Gas or LP burner configuration
- Applicable ignition and control system
- Gas-supply components
- Fireplace or firebox meeting the selected burner's requirements
- Other installation components required by the burner or fireplace
Compatible 24" Slope Glaze Burners
White Mountain Hearth identifies several 24" Slope Glaze burner configurations that can provide the operating platform for the LS24RS.
| Burner Model |
Control / Ignition |
Documented Input |
| VFSM-24 |
Manual, Standing Pilot / Piezo |
36,000 BTU |
| VFSR-24 |
On/Off Millivolt, Standing Pilot |
36,000 BTU |
| VFSV-24 |
Variable Flame, Variable Remote, Standing Pilot / Piezo |
36,000 BTU |
| VFSE-24 |
Intermittent Pilot, Thermostat Variable Remote |
36,000 BTU |
BTU clarification: The 36,000 BTU input belongs to the compatible burner. The LS24RS refractory logs do not have their own independent BTU rating.
Natural Gas or Propane?
The LS24RS decorative logs themselves do not determine the fuel.
Natural Gas
Use the exact Natural Gas version of the compatible 24" Slope Glaze burner.
LP / Propane
Use the exact LP version of the compatible 24" Slope Glaze burner.
Do not assume fuel versions are interchangeable. Verify the approved gas type for the exact burner before purchase and installation.
Compatible Empire Fireboxes
White Mountain Hearth lists the LS-24RS for the following Empire fireboxes:
VFD36FB
Listed for LS-24RS in the supplied manufacturer information.
VFP36FB
Listed for LS-24RS in the supplied manufacturer information.
VFS36FB
Listed for LS-24RS in the supplied manufacturer information.
Firebox listing does not replace burner verification. The correct 24" Slope Glaze burner, fuel configuration, controls, and installation requirements still must be confirmed.
Minimum Firebox Dimensions by Compatible Burner
For installations in non-Empire fireboxes, White Mountain Hearth provides burner-specific minimum dimensions.
| Burner |
Front Width |
Rear Width |
Depth |
Height |
| VFSM-24 |
34" |
27" |
14" |
18" |
| VFSR-24 |
30" |
23" |
14" |
18" |
| VFSV-24 |
30" |
23" |
14" |
18" |
| VFSE-24 |
30" |
23" |
14" |
18" |
These are burner-installation requirements—not physical LS24RS dimensions. Measure the actual fireplace and verify the manual for the exact burner selected.
Correct Six-Piece LS24RS Log Placement
Correct log positioning is critical to the intended flame pattern and clean burner operation.
| Position |
Log |
| 1 |
Left Rear Log |
| 2 |
Right Rear Log |
| 3 |
Left Front Log |
| 4 |
Right Front Log |
| 5 |
Left Top Log |
| 6 |
Right Top Log |
Do not rearrange the logs for appearance. Every log must fit firmly into its manufacturer-specified location. Incorrect positioning can affect combustion and contribute to sooting.
Glowing Ember Placement
Loose glowing-ember material must be installed according to White Mountain Hearth's instructions.
- Do not cover the large rear burner ports.
- Do not cover the large front burner ports.
- Remove old loose ember material before reapplication.
- Do not use excessive loose material.
- When Platinum Bright Embers are used, apply the manufacturer-specified single layer.
Why ember placement matters: Incorrect or excessive material can interfere with burner operation and change the intended flame pattern.
Vented vs. Vent-Free Application
Vent-Free Installation
- Use an approved compatible vent-free Slope Glaze burner.
- Provide required combustion and ventilation air.
- Meet all firebox and combustible-clearance requirements.
- Maintain the exact log and ember arrangement.
- Confirm vent-free operation is permitted locally.
Vented Installation
- Use an approved vented decorative gas-log configuration.
- Maintain a suitable working flue.
- Follow the applicable fireplace and damper requirements.
- Follow the exact burner and fireplace instructions.
Standards noted in the supplied manual: The Sassafras documentation references ANSI Z21.11.2 for approved unvented heater applications and ANSI Z21.60 for decorative vented appliances for solid-fuel-burning fireplaces.
Canadian Installation Restriction
Vent-free installation is not permitted in Canada.
The supplied White Mountain Hearth Sassafras manual states that the LS24RS cannot be installed in an unvented application in Canada and may only be installed in the specified vented configuration.
Glass Door & Airflow Requirements
Glass Doors
Fireplace glass doors must remain open during operation of the gas-log system.
Fans & Drafts
Do not allow ceiling fans, portable fans, or other strong drafts to blow directly into the fireplace and alter the intended flame pattern.
Flame disturbance matters: Drafts that push flame against the logs or firebox can contribute to improper burning or soot formation.
Existing Wood-Burning Fireplace Preparation
Before installing the LS24RS and compatible burner in an existing solid-fuel-burning fireplace, the fireplace and chimney must be properly prepared.
- Clean soot from the firebox and chimney flue.
- Remove creosote.
- Remove ashes.
- Remove loose paint.
- Use a qualified chimney cleaner where required.
- Verify fireplace dimensions and clearances.
- Follow the burner manual for gas supply and installation requirements.
Important Safety & Operating Requirements
- Installation and service must be performed by qualified personnel.
- Follow the exact manufacturer log placement.
- Do not cover prohibited burner ports with glowing embers.
- Do not allow fans to blow directly into the fireplace.
- Keep fireplace glass doors open during operation.
- Do not use an unapproved blower insert or heat exchanger insert.
- Never burn wood or other solid fuels while the gas-log system is installed.
- Keep the appliance area free of combustible materials, gasoline, and flammable vapors.
- If soot appears on the logs, stop operation and have the system serviced.
- Follow the instructions for the exact burner and fireplace configuration.
Complete Empire LS24RS Specifications
| Brand |
White Mountain Hearth by Empire Comfort Systems |
| Model |
LS-24RS |
| Manual Model Designation |
LS-24RS-2 |
| Product Type |
Gas Log Set |
| Log Style |
Sassafras |
| Nominal Size |
24" |
| Log Material |
Refractory |
| Number of Logs |
6 Pieces |
| Required Burner Size |
24" |
| Required Burner Family |
White Mountain Hearth Slope Glaze Burner |
| Compatible Empire Fireboxes |
VFD36FB, VFP36FB, VFS36FB |
| Compatible Burner Fuel |
Natural Gas or LP, Depending on Selected Burner |
| Compatible 24" Burner Input |
36,000 BTU |
| Application |
Vented or Approved Vent-Free Depending on Burner, Fireplace, and Applicable Codes |
| Burner Included |
No |
| Controls Included |
No |
| Log Placement |
Manufacturer-Prescribed Six-Piece Arrangement |
| Glass Door Position During Operation |
Open |
| Canadian Vent-Free Installation |
Not Permitted |
| Installation |
Qualified Installation Required |
Flame Authority Expert Recommendation
Choose the Empire White Mountain Hearth LS24RS when you specifically want a 24" six-piece Sassafras refractory log presentation and have identified a compatible 24" White Mountain Hearth Slope Glaze burner.
The most important purchase decision is the complete system configuration. Confirm the exact burner model, Natural Gas or LP fuel, control and ignition type, fireplace dimensions, vented or vent-free installation, and required clearances before ordering.
If installing in a non-Empire firebox, pay close attention to the burner-specific dimensional differences: the documented VFSM-24 requires more front and rear width than the VFSR-24, VFSV-24, and VFSE-24 configurations.
Official Manufacturer Resources
White Mountain Hearth Vent-Free Gas Log Sets Brochure
Manufacturer information covering Sassafras log sets, compatible Slope Glaze burner configurations, fireboxes, controls, and general product specifications.
White Mountain Hearth Sassafras & Super Sassafras Refractory Log Set Installation Instructions and Owner's Manual
Manufacturer LS24RS log-placement, glowing-ember, vented/vent-free, fireplace-preparation, operation, maintenance, and safety information.
Empire LS24RS FAQs
Does the Empire White Mountain Hearth LS24RS include a burner?
No. The LS24RS is a 24-inch, six-piece Sassafras refractory log set and requires a compatible 24" White Mountain Hearth Slope Glaze Burner.
What burner does the LS24RS require?
The LS24RS requires a 24-inch White Mountain Hearth Slope Glaze Burner. Do not install the logs on an arbitrary or unapproved burner.
How many logs are included with the LS24RS?
The LS24RS contains six refractory Sassafras logs.
Which Empire fireboxes are listed for the LS24RS?
White Mountain Hearth lists VFD36FB, VFP36FB, and VFS36FB fireboxes for the LS-24RS.
Is the LS24RS rated at 36,000 BTU?
No. The 36,000 BTU rating applies to the compatible 24" Slope Glaze burner, not to the refractory logs themselves.
Can the LS24RS use Natural Gas?
Yes, when paired with the correct Natural Gas version of a compatible 24" Slope Glaze burner.
Can the LS24RS use Propane?
Yes, when paired with the correct LP / Propane version of a compatible 24" Slope Glaze burner.
Which control options are available with compatible burners?
Documented 24" Slope Glaze configurations include manual, millivolt, variable-flame, and intermittent-pilot control systems.
Can the LS24RS be used vent-free?
Yes, in approved installations where permitted and when paired with a compatible vent-free burner. Combustion-air, clearance, and local requirements still apply.
Can the LS24RS be used as a vented gas log set?
Yes, when paired with an approved vented configuration and installed according to the applicable manufacturer requirements.
Can the LS24RS be installed vent-free in Canada?
No. The manufacturer specifies vented installation only in Canada.
What size firebox does the VFSM-24 burner require?
The supplied information lists a minimum of 34" front width × 27" rear width × 14" depth × 18" height for the VFSM-24 configuration.
What size firebox do the VFSR-24, VFSV-24, and VFSE-24 burners require?
The supplied information lists a minimum of 30" front width × 23" rear width × 14" depth × 18" height for those documented configurations.
Can I rearrange the LS24RS logs?
No. Correct log positioning is critical to proper operation and cleaner combustion. Follow the manufacturer-prescribed six-piece layout.
Can glowing embers cover the burner ports?
No. Loose glowing-ember material must not cover the large front or rear burner ports.
Should fireplace glass doors remain open?
Yes. The supplied manufacturer instructions require glass doors to remain open during operation.
Can fans affect operation?
Yes. Do not allow fans or strong drafts to blow directly into the fireplace and alter the flame pattern.
Can the LS24RS be installed in an existing wood-burning fireplace?
Yes, when the complete system and fireplace meet the manufacturer requirements. The chimney flue and firebox must first be properly cleaned of soot, creosote, ashes, and loose paint.
Can wood still be burned after the gas logs are installed?
No. Do not burn wood or other solid fuel in the fireplace while the gas-log system is installed.
Should the LS24RS system be professionally installed?
Yes. Installation and service should be completed by qualified personnel according to the manufacturer instructions and applicable codes.
Before You Order
Confirm Before Purchase
- You specifically need the Empire White Mountain Hearth LS24RS.
- You want the 24" six-piece Sassafras refractory configuration.
- You have identified a compatible 24" Slope Glaze burner.
- You have confirmed Natural Gas or LP fuel.
- You have selected the correct ignition and control configuration.
- Your firebox meets the dimensional requirements of the exact burner.
- You have confirmed vented or vent-free installation requirements.
- You can meet all required combustible clearances.
- You can provide adequate combustion and ventilation air for vent-free operation.
- You will follow the exact six-log placement sequence.
- You will keep glowing embers clear of the prohibited burner ports.
- You understand that burner and controls are sold separately.
Do Not Assume
- That a burner is included.
- That every 24" burner is compatible.
- That the logs themselves determine the fuel type.
- That the LS24RS itself produces 36,000 BTU.
- That every compatible burner requires the same firebox dimensions.
- That vented and vent-free requirements are identical.
- That vent-free installation is allowed everywhere.
- That vent-free installation is permitted in Canada.
- That the logs can be rearranged.
- That glowing embers can cover burner ports.
- That fireplace glass doors can remain closed during operation.
Final planning check: Use the White Mountain Hearth Sassafras installation manual and the instructions for the exact selected 24" Slope Glaze burner to verify burner compatibility, fuel, controls, BTU input, firebox dimensions, combustion air, clearances, log placement, ember placement, vented or vent-free operation, and local requirements before installation.
