Independent gas log buyer's guide

Duluth Forge Gas Logs

Compare 18-, 24- and 30-inch gas logs by fuel, controls, venting and firebox fit.

Find dual-fuel, natural gas and propane models; compare remote, thermostat, vented and vent-free configurations.

Updated 23 Amazon listings comparedIndependent editorial guide

Disclosure: As an Amazon Associate I earn from qualifying purchases. Independent guide; verify the exact model and current availability on Amazon.

18-Inch Duluth Forge Gas Logs

Compare 30,000-BTU vent-free sets by fuel and controls. FNVL18-1 is a separate 45,000-BTU vented natural gas model.

Duluth Forge DLS-18R-1 18-inch split red oak vent-free gas log set

DLS-18R-1 · B0CGKJ76KQ

Duluth Forge DLS-18R-1: 18-Inch Split Red Oak Gas Logs

A dual-fuel split-oak set with remote temperature control; a practical starting point when the home has either approved natural gas or propane service.

Dual fuelRemoteVent-free
Fuel
Natural gas or propane
Output
30,000 BTU
Control
Thermostatic remote
Log style
Split red oak
View DLS-18R-1 on Amazon

Check seller, configuration and availability on Amazon.

Duluth Forge DLS-N18R-2 18-inch natural gas stacked oak log set

DLS-N18R-2 · B0FHJ6V2Q9

Duluth Forge DLS-N18R-2: 18-Inch Natural Gas Stacked Oak Logs

A natural-gas-only stacked-oak configuration with remote control. The N model designation matters: this listing should not be treated as dual fuel.

Natural gas onlyRemoteVent-free
Fuel
Natural gas only
Output
30,000 BTU
Control
Remote control
Log style
Stacked oak
View DLS-N18R-2 on Amazon

Confirm the listing identifies natural gas, not propane.

Duluth Forge FVFLC18-1 18-inch split red oak dual-fuel gas log set

FVFLC18-1 listing · B01861ZZ5E

Duluth Forge FVFLC18-1: 18-Inch Split Red Oak Remote Gas Logs

An established split-red-oak dual-fuel listing associated with the FVFLC18-1 designation. Confirm the current offer includes the complete burner system and remote.

Dual fuelRemote listingVent-free
Fuel
Natural gas or propane
Output
30,000 BTU
Control
Remote; verify inclusions
Log style
Split red oak
View the FVFLC18-1 Listing

Check whether the current offer is a complete set.

Duluth Forge DLS-18R-2 18-inch stacked red oak dual-fuel gas logs

DLS-18R-2 · B0CGKKT48L

Duluth Forge DLS-18R-2: 18-Inch Stacked Red Oak Gas Logs

A compact stacked-red-oak option with dual-fuel flexibility and a thermostatic remote. Compare with N and L variants before choosing by appearance alone.

Dual fuelRemoteVent-free
Fuel
Natural gas or propane
Output
30,000 BTU
Control
Thermostatic remote
Log style
Stacked red oak
View DLS-18R-2 on Amazon

Check seller, configuration and availability on Amazon.

Duluth Forge FNVL18-1 18-inch vented natural gas match-light log set

FNVL18-1 · B016CJAG06

Duluth Forge FNVL18-1: 18-Inch Vented Natural Gas Logs

A fundamentally different product: a 45,000-BTU vented natural gas log set that requires proper fireplace venting. It is not a vent-free or remote-control set.

VentedNatural gas onlyMatch-light
Fuel
Natural gas only
Output
45,000 BTU
Control
Manual / match-light
Venting
Vented fireplace required
View Vented FNVL18-1

Do not install as a vent-free appliance.

Duluth Forge DLS-18T-1 18-inch split red oak thermostat-controlled gas logs

DLS-18T-1 · B01MSDVYKF

Duluth Forge DLS-18T-1: 18-Inch Split Oak Thermostat Gas Logs

A dual-fuel split-oak model with an integrated thermostat control. The T in the model number identifies the built-in control rather than a handheld remote.

Dual fuelBuilt-in thermostatVent-free
Fuel
Natural gas or propane
Output
30,000 BTU
Control
Built-in thermostat
Log style
Split red oak
View DLS-18T-1 on Amazon

Thermostat model; a handheld remote is not assumed.

Duluth Forge DLS-L18R-2 18-inch propane-only stacked oak gas log set

DLS-L18R-2 · B0FXGMJJRC

Duluth Forge DLS-L18R-2: 18-Inch Propane Stacked Oak Gas Logs

A liquid-propane-only version of the stacked-oak remote configuration. It is the LP counterpart to similarly styled natural gas models, not a dual-fuel set.

Propane onlyRemoteVent-free
Fuel
Liquid propane only
Output
30,000 BTU
Control
Remote control
Log style
Stacked oak
View DLS-L18R-2 on Amazon

Confirm the listing identifies liquid propane.

Duluth Forge DLS-N18T-2 18-inch natural-gas-only thermostat-controlled stacked oak logs

DLS-N18T-2 · B0FHJ7CPKK

Duluth Forge DLS-N18T-2: 18-Inch Natural Gas Thermostat Logs

A natural-gas-only stacked-oak model with built-in thermostat operation. This configuration does not become dual fuel and does not include a remote merely because other 18-inch logs do.

Natural gas onlyBuilt-in thermostatVent-free
Fuel
Natural gas only
Output
30,000 BTU
Control
Built-in thermostat
Log style
Stacked oak
View DLS-N18T-2 on Amazon

Natural gas and thermostat; not a remote-control set.

Duluth Forge DLS-L18R-1 18-inch propane-only split red oak remote gas logs

DLS-L18R-1 · B0FXNL67MD

Duluth Forge DLS-L18R-1: 18-Inch Propane Split Oak Gas Logs

A propane-only split-red-oak remote model intended for an approved LP installation. Package dimensions are not used as a substitute for manufacturer firebox requirements.

Propane onlyRemoteVent-free
Fuel
Liquid propane only
Output
30,000 BTU
Control
Remote control
Log style
Split red oak
View DLS-L18R-1 on Amazon

Confirm propane compatibility and required clearances.

Important sizing detail: the manufacturer lists a minimum firebox of 29 inches across the front for one 18-inch split-oak dual-fuel set. An 18-inch log size does not mean an 18-inch fireplace opening is sufficient.

24-Inch Duluth Forge Gas Logs

Most 24-inch vent-free models in this comparison deliver 33,000 BTU, but the DLS-24, DLS-N24 and DLS-L24 families are not equivalent. Match the actual gas supply first, then choose between a handheld remote and a built-in thermostat.

Duluth Forge DLS-24R-1 24-inch Berkshire split oak dual-fuel remote gas logs

DLS-24R-1 · B0CGKVGQQJ

Duluth Forge DLS-24R-1: 24-Inch Split Oak Dual-Fuel Gas Logs

A 33,000-BTU dual-fuel split-oak configuration with remote operation. Use the exact model manual rather than nominal 24-inch log size when assessing fireplace fit.

Dual fuelRemoteVent-free
Fuel
Natural gas or propane
Output
33,000 BTU
Control
Thermostatic remote
Log style
Berkshire split oak
View DLS-24R-1 on Amazon

Check seller, configuration and availability on Amazon.

Duluth Forge DLS-N24R-2 24-inch natural-gas-only stacked oak remote gas logs

DLS-N24R-2 · B0FHJ9TXZK

Duluth Forge DLS-N24R-2: 24-Inch Natural Gas Stacked Oak Logs

A natural-gas-only stacked-oak set with a remote. Its N fuel designation distinguishes it from visually similar dual-fuel and liquid-propane alternatives.

Natural gas onlyRemoteVent-free
Fuel
Natural gas only
Output
33,000 BTU
Control
Remote control
Log style
Stacked oak
View DLS-N24R-2 on Amazon

Natural gas only; verify the selected listing.

Duluth Forge DLS-L24R-2 24-inch propane-only stacked oak remote gas logs

DLS-L24R-2 · B0FHJ8KXLC

Duluth Forge DLS-L24R-2: 24-Inch Propane Stacked Oak Gas Logs

A liquid-propane-only stacked-oak model with remote operation. Compare its L designation with DLS-N24R-2 before selecting a gas connection.

Propane onlyRemoteVent-free
Fuel
Liquid propane only
Output
33,000 BTU
Control
Remote control
Log style
Stacked oak
View DLS-L24R-2 on Amazon

Liquid propane only; not a dual-fuel configuration.

Duluth Forge DLS-N24T-1 24-inch natural gas split oak thermostat-controlled logs

DLS-N24T-1 · B0FH7L15QS

Duluth Forge DLS-N24T-1: 24-Inch Natural Gas Thermostat Logs

A natural-gas-only split-oak model controlled by a built-in thermostat. This is not the remote version and should not be presented as a dual-fuel listing.

Natural gas onlyBuilt-in thermostatVent-free
Fuel
Natural gas only
Output
33,000 BTU
Control
Built-in thermostat
Log style
Split red oak
View DLS-N24T-1 on Amazon

Natural gas and built-in thermostat; no remote assumed.

Duluth Forge DLS-24T-2 24-inch stacked oak dual-fuel thermostat gas logs

DLS-24T-2 · B01MTFIP4R

Duluth Forge DLS-24T-2: 24-Inch Stacked Oak Thermostat Gas Logs

A dual-fuel stacked-oak set with an integrated thermostat. Minimum fireplace opening dimensions are installation requirements, not the dimensions of the product box.

Dual fuelBuilt-in thermostatVent-free
Fuel
Natural gas or propane
Output
33,000 BTU
Control
Built-in thermostat
Log style
Stacked oak
View DLS-24T-2 on Amazon

Thermostat configuration; check exact inclusions.

Duluth Forge DLS-24T-1 24-inch dual-fuel split oak thermostat gas logs

DLS-24T-1 · B0762HGXXH

Duluth Forge DLS-24T-1: 24-Inch Split Oak Thermostat Gas Logs

A 33,000-BTU split-red-oak model combining natural-gas-or-propane flexibility with an integrated thermostat rather than a handheld remote.

Dual fuelBuilt-in thermostatVent-free
Fuel
Natural gas or propane
Output
33,000 BTU
Control
Built-in thermostat
Log style
Split red oak
View DLS-24T-1 on Amazon

A thermostat is not the same as a handheld remote.

Duluth Forge DLS-L24T-2 24-inch propane-only stacked oak thermostat gas logs

DLS-L24T-2 · B0FH7MJG3R

Duluth Forge DLS-L24T-2: 24-Inch Propane Thermostat Gas Logs

A propane-only stacked-oak thermostat model. Its L and T identifiers together indicate liquid propane and built-in thermostat control, not a remote.

Propane onlyBuilt-in thermostatVent-free
Fuel
Liquid propane only
Output
33,000 BTU
Control
Built-in thermostat
Log style
Stacked oak
View DLS-L24T-2 on Amazon

Propane and thermostat; not a remote-control model.

Duluth Forge DLS-N24T-2 24-inch natural-gas-only stacked oak thermostat logs

DLS-N24T-2 · B0FH7M39SN

Duluth Forge DLS-N24T-2: 24-Inch Natural Gas Thermostat Logs

A natural-gas-only, thermostat-controlled stacked-oak set. Neither propane compatibility nor remote control should be inferred from similar product photographs.

Natural gas onlyBuilt-in thermostatVent-free
Fuel
Natural gas only
Output
33,000 BTU
Control
Built-in thermostat
Log style
Stacked oak
View DLS-N24T-2 on Amazon

Natural gas only; built-in thermostat, not remote.

Duluth Forge DLS-24R-2 24-inch Berkshire stacked oak dual-fuel remote gas logs

DLS-24R-2 · B017XSH4AK

Duluth Forge DLS-24R-2: 24-Inch Berkshire Stacked Oak Gas Logs

A 33,000-BTU dual-fuel Berkshire stacked-oak set with remote control. It combines the stacked presentation with the more flexible dual-fuel configuration.

Dual fuelRemoteVent-free
Fuel
Natural gas or propane
Output
33,000 BTU
Control
Thermostatic remote
Log style
Berkshire stacked oak
View DLS-24R-2 on Amazon

Check seller, configuration and availability on Amazon.

Duluth Forge FNVL24-1 24-inch vented natural gas Heartland Oak match-light logs

FNVL24-1 · B016CJAH1Y

Duluth Forge FNVL24-1: 24-Inch Vented Heartland Oak Gas Logs

A 55,000-BTU vented natural gas log set with manual match-light operation. It belongs in a properly vented fireplace and is not a vent-free alternative.

VentedNatural gas onlyMatch-light
Fuel
Natural gas only
Output
55,000 BTU
Control
Manual / match-light
Venting
Vented fireplace required
View Vented FNVL24-1

Requires appropriate venting; not a vent-free set.

Duluth Forge DLS-L24R-1 24-inch propane-only split oak remote gas logs

DLS-L24R-1 · B0FHJ8MWQ8

Duluth Forge DLS-L24R-1: 24-Inch Propane Split Oak Gas Logs

A liquid-propane-only split-oak remote model. Choose it for an approved LP installation; do not substitute it for the natural-gas-only N variant.

Propane onlyRemoteVent-free
Fuel
Liquid propane only
Output
33,000 BTU
Control
Remote control
Log style
Split oak
View DLS-L24R-1 on Amazon

Liquid propane only; confirm the current listing.

30-Inch Duluth Forge Gas Logs

These larger dual-fuel remote-control sets are rated at 33,000 BTU. Their wider visual footprint does not automatically mean a higher BTU rating than a 24-inch model; the meaningful differences are firebox fit, log presentation and the exact listing.

Duluth Forge DLS-30R-1 30-inch split red oak dual-fuel remote gas logs

DLS-30R-1 · B0CGKMTLGK

Duluth Forge DLS-30R-1: 30-Inch Split Red Oak Gas Logs

A 30-inch split-oak remote-controlled configuration for an adequately sized, approved fireplace. Larger log size is primarily a fit and visual decision.

Dual fuelRemoteVent-free
Fuel
Natural gas or propane
Output
33,000 BTU
Control
Thermostatic remote
Log style
Split red oak
View DLS-30R-1 on Amazon

Verify full front, rear, height and depth clearances.

Duluth Forge DLS-30R-1 30-inch Berkshire split oak dual-fuel remote gas logs

DLS-30R-1 alternate listing · B0762H46SX

Duluth Forge DLS-30R-1: 30-Inch Berkshire Split Oak Gas Logs

A separate Amazon listing associated with the DLS-30R-1 family. Compare current sellers, listing details and included components against the other 30-inch split-oak option.

Dual fuelRemoteVent-free
Fuel
Natural gas or propane
Output
33,000 BTU
Control
Thermostatic remote
Log style
Berkshire split oak
View the Alternate Amazon Listing

Separate ASIN; confirm configuration and seller.

Duluth Forge DLS-30R-2 30-inch Berkshire stacked oak dual-fuel remote gas logs

DLS-30R-2 · B0CGKD6T5B

Duluth Forge DLS-30R-2: 30-Inch Berkshire Stacked Oak Gas Logs

A wide stacked-oak remote model with dual-fuel capability. The manufacturer's minimum firebox measurements include a 34-inch front opening for this 30-inch family.

Dual fuelRemoteVent-free
Fuel
Natural gas or propane
Output
33,000 BTU
Control
Thermostatic remote
Log style
Berkshire stacked oak
View DLS-30R-2 on Amazon

A 30-inch log set can require a 34-inch front opening.

How We Compare Duluth Forge Gas Logs

A useful comparison should identify installation-critical differences before describing color or flame appearance. We compare listing identifiers against manufacturer product information, label uncertain legacy listings, and avoid presenting fluctuating Amazon stock or prices as verified facts.

Fuel compatibilityDual fuel, natural gas only and propane only are labeled separately.
Control typeRemote-control models are not confused with built-in thermostat versions.
Firebox measurementsOpening dimensions are separated from nominal log size and packaging.
Venting requirementsVented match-light logs are clearly identified and not treated as vent-free.

Fuel and model identity

We compare the model number, Amazon ASIN and stated fuel type. A natural-gas-only or liquid-propane-only listing is not renamed dual fuel merely because the product photograph resembles a dual-fuel set.

Actual control method

Remote-control, built-in thermostat and match-light models are separate configurations. The letter pattern is useful, but the current product listing and installation manual remain the final authority.

Installation context

We distinguish nominal log size, minimum firebox opening, venting method and rated heat output. The safety decision depends on the exact model, installation location, local requirements and professional assessment.

Duluth Forge Gas Log Comparison Table

Use this table to narrow the field by actual fuel and control configuration. Multiple Amazon listings can represent the same model family; always open the selected listing to confirm the current description and included components.

Comparison of 23 Duluth Forge gas log listings by size, fuel, heat output, controls and venting.
Model / listingSizeFuelOutputControlVentingLog presentation
DLS-18R-118 in.Natural gas or propane30,000 BTURemoteVent-freeSplit red oak
DLS-N18R-218 in.Natural gas only30,000 BTURemoteVent-freeStacked oak
FVFLC18-1 listing18 in.Natural gas or propane30,000 BTURemote; verify setVent-freeSplit red oak
DLS-18R-218 in.Natural gas or propane30,000 BTURemoteVent-freeStacked red oak
FNVL18-118 in.Natural gas only45,000 BTUMatch-lightVentedVented oak logs
DLS-18T-118 in.Natural gas or propane30,000 BTUBuilt-in thermostatVent-freeSplit red oak
DLS-L18R-218 in.Propane only30,000 BTURemoteVent-freeStacked oak
DLS-N18T-218 in.Natural gas only30,000 BTUBuilt-in thermostatVent-freeStacked oak
DLS-L18R-118 in.Propane only30,000 BTURemoteVent-freeSplit red oak
DLS-24R-124 in.Natural gas or propane33,000 BTURemoteVent-freeBerkshire split oak
DLS-N24R-224 in.Natural gas only33,000 BTURemoteVent-freeStacked oak
DLS-L24R-224 in.Propane only33,000 BTURemoteVent-freeStacked oak
DLS-N24T-124 in.Natural gas only33,000 BTUBuilt-in thermostatVent-freeSplit red oak
DLS-24T-224 in.Natural gas or propane33,000 BTUBuilt-in thermostatVent-freeStacked oak
DLS-24T-124 in.Natural gas or propane33,000 BTUBuilt-in thermostatVent-freeSplit red oak
DLS-L24T-224 in.Propane only33,000 BTUBuilt-in thermostatVent-freeStacked oak
DLS-N24T-224 in.Natural gas only33,000 BTUBuilt-in thermostatVent-freeStacked oak
DLS-24R-224 in.Natural gas or propane33,000 BTURemoteVent-freeBerkshire stacked oak
FNVL24-124 in.Natural gas only55,000 BTUMatch-lightVentedHeartland oak
DLS-L24R-124 in.Propane only33,000 BTURemoteVent-freeSplit oak
DLS-30R-130 in.Natural gas or propane33,000 BTURemoteVent-freeSplit red oak
DLS-30R-1 alternate30 in.Natural gas or propane33,000 BTURemoteVent-freeBerkshire split oak
DLS-30R-230 in.Natural gas or propane33,000 BTURemoteVent-freeBerkshire stacked oak

Specifications describe the identified model or listing at the time of review. A current Amazon offer can change, become unavailable or differ in included accessories; the exact manufacturer manual and current product detail page take precedence.

Minimum Firebox Size: What 18, 24 and 30 Inches Really Mean

The advertised log length is not the minimum fireplace opening. The manufacturer publishes four separate installation measurements: front width, rear width, height and depth. The examples below come from specific manufacturer product pages and must not be applied automatically to every variant.

Manufacturer-published minimum firebox measurements for selected Duluth Forge dual-fuel log families.
Representative model familyNominal logsFront widthRear widthHeightDepthPractical takeaway
18-inch split red oak dual-fuel remote18 in.29 in.22 in.20 in.13 in.Requires much more front width than the 18-inch log label suggests.
24-inch Berkshire split oak dual-fuel remote24 in.28 in.23 in.20 in.15 in.Front and rear widths both matter; never infer fit from nominal size alone.
30-inch Berkshire stacked oak dual-fuel family30 in.34 in.23 in.20 in.15 in.A wider 30-inch presentation may require a 34-inch front opening.

Measure the actual approved firebox: check inside front width, inside rear width, inside height and usable depth. Then verify mantel, sidewall, floor, gas-supply and other clearance requirements in the manual for the exact burner and model being installed.

The fact that one 18-inch family lists a 29-inch front opening while one 24-inch family lists 28 inches is not a typo: manufacturer requirements vary by burner and chassis. Do not extrapolate dimensions across models.

How to Read Duluth Forge Gas Log Model Numbers

Within the DLS model families shown here, the added fuel letter and control letter make a bigger purchasing difference than whether the logs look stacked or split.

DLS-18R, DLS-24R or DLS-30R

In the compared listings, models without an added N or L fuel letter are identified as dual-fuel natural-gas-or-propane sets. The R identifies a remote-control configuration. Confirm both details on the selected listing.

DLS-N18 or DLS-N24

The N models shown here are configured for natural gas only. For example, DLS-N24R-2 is the remote version, while DLS-N24T-2 uses a built-in thermostat. They should not be connected to propane.

DLS-L18 or DLS-L24

The L models shown here are configured for liquid propane only. For example, DLS-L24R-2 has remote control, while DLS-L24T-2 has a built-in thermostat. They should not be assumed compatible with natural gas.

R, T and FNVL

R indicates remote control for the DLS listings compared; T indicates an integrated thermostat. FNVL18-1 and FNVL24-1 are separate vented, natural-gas-only, match-light products, not remote-operated vent-free sets.

Never convert a single-fuel appliance by guesswork. Use only the fuel, configuration and components specified for the exact model by the manufacturer and a qualified installer.

Which Duluth Forge Gas Logs Should You Choose?

The best option is the one that fits the actual fireplace, matches the available gas supply and is permitted for the intended installation. Use this order to eliminate incompatible choices before comparing appearance.

Step 01

Confirm the gas supply

Determine whether the installation uses utility natural gas or liquid propane. Choose a correctly configured single-fuel appliance or a manufacturer-approved dual-fuel model for that supply.

Step 02

Choose vented or vent-free

Vented FNVL models require an appropriate functioning venting system. Vent-free DLS models have separate room, combustion-air, placement and local-code requirements.

Step 03

Measure all four firebox dimensions

Record internal front width, rear width, height and usable depth. Compare every measurement and all required clearances with the exact manufacturer's installation manual.

Step 04

Select the control method

Choose an R model for remote operation, a T model for an integrated thermostat, or a match-light vented set only when that operation and installation type are appropriate.

Step 05

Check the exact ASIN and offer

Similar photographs can conceal different fuels, accessories or controls. Confirm the actual model number, included burner, remote or thermostat, and current Amazon seller details.

Step 06

Have installation evaluated

A qualified gas-appliance professional should confirm gas pressure, shutoff access, combustion air, venting or vent-free suitability, leak testing and applicable local requirements.

Vented vs. Vent-Free Gas Logs: The Difference That Matters

A similar flame photo does not make two gas log systems interchangeable. Vented and vent-free appliances have different burner designs, installation rules and operating limitations.

Vent-free DLS gas log sets

The DLS models in this guide are identified as vent-free heating appliances. They must be installed only in an approved fireplace or firebox and used in accordance with the exact appliance manual, required combustion-air provisions, placement restrictions and local law.

  • Typical compared output: 30,000 BTU for 18-inch models and 33,000 BTU for 24- and 30-inch models.
  • Fuel configurations include dual fuel, natural gas only and propane only.
  • Remote and built-in thermostat versions are distinct configurations.

Vented FNVL gas log sets

FNVL18-1 and FNVL24-1 are vented natural gas appliances intended for a properly vented fireplace. They are match-light products in the compared listings and must not be represented as vent-free, dual-fuel or remote-operated sets.

  • FNVL18-1: 45,000 BTU, natural gas, vented, match-light.
  • FNVL24-1: 55,000 BTU, natural gas, vented, match-light.
  • A functioning chimney or other manufacturer-approved venting arrangement is essential.

Safety note: an oxygen-depletion sensor, if included, is not a substitute for correct installation, required combustion air, working carbon monoxide alarms, routine maintenance or compliance with local codes.

Before You Buy: Installation and Safety Checklist

Gas logs are combustion appliances, not decorative accessories that can be selected by width alone. Complete this checklist before placing an order.

  • Confirm local permissions: vent-free appliance rules and installation restrictions differ by jurisdiction and building type.
  • Check the room and location: bedroom, bathroom, sleeping-area, unusually small-room and confined-space restrictions must be evaluated against the specific appliance manual and local code.
  • Verify the gas: natural gas, propane and dual-fuel configurations are not interchangeable without explicit manufacturer approval.
  • Measure the approved firebox: front width, rear width, height and depth all have to meet the exact model's stated minimums.
  • Confirm the burner package: a log-cluster designation, legacy listing or replacement listing does not automatically guarantee that every burner, control or remote component is included.
  • Follow the log-placement diagram: do not rearrange refractory logs or substitute unapproved components; incorrect placement can affect combustion.
  • Review all clearances: account for mantel, trim, sidewalls, floor protection, gas shutoff access and surrounding combustible materials.
  • Use a qualified installer: gas pressure, connections, leak testing, combustion-air requirements, alarms and final commissioning need professional evaluation.

Duluth Forge Gas Logs FAQ

Are all Duluth Forge gas logs dual fuel?

No. Some DLS families are identified as dual fuel, while DLS-N models in this comparison are natural-gas-only and DLS-L models are propane-only. The vented FNVL18-1 and FNVL24-1 listings are natural-gas-only. Always verify the exact model, not just the photograph or listing headline.

What is the difference between DLS-R and DLS-T models?

For the Duluth Forge DLS listings compared here, R identifies a remote-control configuration and T identifies a built-in thermostat configuration. A thermostat-controlled T model should not be advertised as including a handheld remote unless the selected listing expressly states that it does.

Can an 18-inch gas log set fit an 18-inch fireplace opening?

Not necessarily. For one 18-inch split-red-oak dual-fuel model, the manufacturer specifies a minimum front opening of 29 inches, rear width of 22 inches, height of 20 inches and depth of 13 inches. The nominal log length is not the installation opening requirement.

Do 30-inch gas logs produce more heat than 24-inch models?

Not in the vent-free families compared here: the listed 24-inch and 30-inch DLS models are both rated at 33,000 BTU. The larger set primarily changes log presentation and required fireplace dimensions, so check both output and fit separately.

Which Duluth Forge gas logs are vented?

The FNVL18-1 and FNVL24-1 listings in this guide are vented, natural-gas-only, match-light log sets. They require an appropriate vented fireplace and must not be installed or described as vent-free systems.

Can I connect a natural-gas-only model to propane?

No. Use only the fuel approved for the exact appliance and burner configuration. A natural-gas-only DLS-N model must not be treated as propane-compatible simply because a visually similar DLS-L or dual-fuel model exists.

Do vent-free gas logs work in any room?

No. Installation location, room volume, combustion air, local restrictions and the specific appliance manual all matter. Sleeping areas, bathrooms, bedrooms and small or confined rooms can have special limitations. Ask a qualified installer to evaluate the intended location before purchase.

Does a vent-free gas log set need a chimney?

A vent-free appliance is designed under different requirements from a vented log set, but that does not make it suitable for every fireplace or room. It still requires an approved installation, adequate combustion air, proper clearances and compliance with the exact manual and local regulations.

What does the N or L in a Duluth Forge model number mean?

For the model families compared here, N identifies the natural-gas-only configurations and L identifies the liquid-propane-only configurations. For example, DLS-N24T-2 is natural gas with a built-in thermostat, while DLS-L24T-2 is propane with a built-in thermostat.

Are the published firebox dimensions the dimensions of the log set?

No. Minimum firebox dimensions describe the fireplace opening and interior space needed for installation. Product dimensions, package dimensions and nominal log length describe different things and should not be mixed together.

What if a specific Amazon listing is unavailable?

Individual ASINs and seller offers can change. Use the Amazon category-search button on this page to compare current Duluth Forge gas log listings, then verify the exact size, gas type, control method, included components and seller information directly on Amazon.

Where can I check Duluth Forge manuals and model information?

Start with the exact model's manufacturer product page and current installation manual, then compare that information with the selected Amazon product listing. Our Duluth Forge manuals guide can help you locate the appropriate documentation.

Editorial disclosure: This is an independently prepared buying guide, not a manufacturer website or installation manual. As an Amazon Associate I earn from qualifying purchases. Prices, stock, seller offers and listing contents can change; Amazon and the exact manufacturer documentation are the authoritative sources for current offer and installation information.

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