7 Best Gas Fireplace Insert Picks for Warm Homes

Choosing the right gas fireplace insert can transform a chilly living room into a cozy sanctuary while boosting energy efficiency and adding resale value to your home. With countless models on the market—each promising different flame aesthetics, heating capacities, and smart‑control features—it’s easy to feel overwhelmed and risk a costly misstep. That’s why we’ve done the legwork for you, testing and comparing performance, durability, and price to pinpoint the top seven inserts that truly stand out. In the sections that follow, you’ll find concise reviews of each standout model, helping you make an informed decision that matches your style, budget, and heating needs. Let’s dive in.

Top Gas Fireplace Inserts You’ll Love

We’ve evaluated performance, style, and efficiency to bring you the seven standout models that elevate any living space.

7. Duluth Forge DLS-L24R-1 Ventless Gas Log Set

The Duluth Forge Ventless Liquid Propane Gas Log Set brings the warmth and ambiance of a real fireplace to any room without the hassle of a chimney. Generating 33,000 BTU, it comfortably heats spaces up to 1,300 sq ft, making it ideal for open‑plan living areas or large family rooms. The set includes nine hand‑crafted ceramic logs that are molded from real wood, hand‑painted, split, and charred for a strikingly realistic look. A premium ember burner system adds a glowing ember bed beneath a single row of flames, creating a mature, lifelike fire that draws the eye. Control is effortless with the included LCD remote; simply set your desired temperature and the thermostat automatically adjusts the flame to maintain comfort. Safety is built in—99.9 % vent‑free efficiency, an Oxygen Depletion Sensor, and automatic shut‑off meet ANSI and PFS certifications, so you can enjoy the fire worry‑free.

Pros

• High heat output (33,000 BTU) efficiently warms large areas up to 1,300 sq ft.
• Authentic aesthetics thanks to hand‑crafted, wood‑textured ceramic logs and ember bed.
• Convenient remote thermostat maintains set temperature automatically, enhancing comfort and energy savings.

Cons

• Requires a liquid propane tank and periodic refills, which may be less convenient than natural‑gas models.
• As a vent‑free unit, it needs adequate room ventilation to meet indoor air quality guidelines.

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6. Duluth Forge DLS-N18R-2 Log Set

The Duluth Forge Ventless Natural Gas Log Set (Model DLS‑N18R‑2) brings the cozy charm of a traditional wood‑burning fireplace to any room without the hassle of a chimney. Generating 30,000 BTU, it comfortably heats up to 1,100 sq ft while operating at 99.9 % vent‑free efficiency, so you get maximum warmth with minimal fuel waste. The set features seven hand‑painted ceramic logs molded from real red oak, each with authentic charring and texture that mimic stacked firewood year‑round. A sleek black powder‑coated chassis houses the burner and a built‑in Oxygen Depletion Sensor, providing ANSI‑certified safety and an automatic shut‑off if air quality drops. Control the ambience from anywhere in the room with the included thermostat remote: set the temperature, adjust flame height, and turn the unit on or off, all displayed on an easy‑read LCD screen. Battery‑assisted ignition ensures reliable start‑up, and the refractory‑grade materials guarantee durability for many seasons of use.

Pros

• High heat efficiency: 30,000 BTU output covers large spaces with 99.9 % vent‑free performance.
• Realistic oak aesthetics: Hand‑painted, ceramic logs deliver a genuine wood‑fire look.
• Convenient remote control: Temperature, flame, and power are managed via an LCD‑backed thermostat.

Cons

• Vent‑free limitation: Requires adequate ventilation and may not be permitted in all jurisdictions.
• Remote battery reliance: The thermostat remote needs periodic battery replacement for uninterrupted use.

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5. Duluth Forge DLS-30R Ventless Fireplace Logs

The Duluth Forge DLS‑30R‑1 Dual‑Fuel Ventless Fireplace Logs Set delivers a full‑size, realistic fire experience without the hassle of a chimney. Patented dual‑fuel technology lets you choose natural gas or liquid propane, while the 33,000 BTU vent‑free burner operates at 99.9 % efficiency, heating the room quickly and cleanly. Nine hand‑painted Split Red Oak ceramic logs are crafted from high‑grade refractory material for durability and a lifelike grain pattern. An iron grate, U‑burner chassis, and a bag of embers complete the look, producing authentic flames and a warm glow.

Convenient remote control operation lets you turn the burner on or off, switch between manual and thermostat modes, and set your desired temperature from anywhere in the room. The system includes a battery‑assisted piezo igniter with an oxygen depletion sensor (ODS) that automatically shuts down the fire if carbon monoxide or low oxygen is detected, plus a damper clamp for added safety. The package comes ready to install in any firebox that meets the minimum size requirements, with all necessary hardware, AA & AAA batteries, and a receiver box.

Pros

• Dual‑fuel flexibility – use natural gas or propane based on availability or price.
• Ventless, high‑efficiency heating – 99.9 % efficiency eliminates the need for a chimney.
• Realistic appearance – hand‑painted ceramic logs and embers create authentic flames and glow.

Cons

• Ventless operation may be restricted in some jurisdictions; check local codes before purchase.
• Requires a compatible firebox size – installation is not possible in very small or non‑standard fireplaces.

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4. Duluth Forge Dual Fuel Fireplace Insert

The Duluth Forge Dual Fuel Ventless Gas Fireplace Insert delivers powerful, efficient heat without the hassle of a chimney. Its patented dual‑fuel system lets you choose natural gas or liquid propane, providing up to 32,000 BTU and comfortably warming spaces as large as 1,500 sq ft. The vent‑free design is 99.9 % efficient, so every ounce of fuel turns directly into warmth. A sleek black finish, mesh double doors, and a sprayed‑brick liner give the unit a modern look, while six hand‑painted ceramic‑fiber logs add realistic charm and durability.

Control is effortless with the included LCD remote: turn the burner on or off, adjust flame height, and switch between gas sources—all from the comfort of your sofa. A standing pilot and push‑button piezo ignition ensure reliable startup, and the zero‑clearance firebox can be installed directly against or recessed into any wall with a gas line, saving precious space. The package arrives ready to install, complete with logs, iron grate, AAA battery, remote, and receiver. At 69.5 lb, it’s sturdy yet manageable for most DIY installations.

Pros

• Dual‑fuel flexibility lets you use natural gas or propane depending on availability or price.
• Ventless, high‑efficiency heating eliminates chimney construction and maximizes heat output.
• Remote control with LCD provides convenient, precise flame and fuel management.

Cons

• Requires a minimum 42‑inch clearance to the ceiling, which may limit placement in low‑ceiling rooms.
• As a ventless unit, it may not be suitable for homes with strict indoor‑air‑quality regulations.

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3. Real Fyre 24-Inch Live Oak Gas Log Set

Real Fyre’s 24‑inch Live Oak Vented Gas Log Set brings the classic charm of a wood‑burning fireplace to a modern, natural‑gas setup. The set delivers up to 90,000 BTU, creating big, lively flames and strong radiant warmth—perfect for a properly vented, traditional fireplace. Six hand‑painted ceramic logs, each reinforced with steel, sit on a sturdy grate and are surrounded by silica sand and glowing embers for an authentic look. A vented burner, damper clamp, and a complete gas‑line connection kit make installation straightforward, while the match‑lit design ensures you can start the fire the old‑fashioned way, without the need for a remote or electronic igniter (though upgrades are available). The package fits a typical 24‑in vented opening (≈28 × 23 × 13 × 17 in), with a little extra width if you later add a safety pilot.

Pros

• High heat output (90,000 BTU) provides rapid, room‑filling warmth.
• Authentic aesthetic with hand‑painted logs, steel reinforcement, sand, and embers.
• Complete kit includes burner, grate, damper clamp, and gas‑line connections for easy setup.

Cons

• Designed only for fully vented fireplaces; not suitable for vent‑free or propane installations.
• Match‑lit only unless you purchase optional pilot or remote‑control upgrades.

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2. Duluth Forge DLS-24R-1 Ventless Fireplace Logs

The Duluth Forge DLS‑24R‑1 Dual‑Fuel Ventless Fireplace Logs Set delivers a realistic, high‑efficiency fire experience without the hassle of a chimney. Patented dual‑fuel technology lets you power the 33,000 BTU burner with either natural gas or liquid propane, while the 99.9 % efficient vent‑free design safely heats rooms up to 24 inches wide. Eight hand‑painted Berkshire Split Oak ceramic logs, an iron grate, U‑burner chassis, and a bag of embers create authentic flames and a warm glow that lasts for years. A battery‑assisted piezo ignition and built‑in oxygen depletion sensor (ODS) automatically shut the unit off if carbon monoxide or low‑oxygen conditions are detected, adding peace of mind. The included remote control and receiver box let you toggle between manual and thermostat modes, set your desired temperature, and turn the fire on or off from anywhere in the room. Installation is straightforward—just fit the set into a minimum‑size firebox, secure the damper clamp, and you’re ready to enjoy a cozy ambiance.

Pros

• Dual‑fuel flexibility – switch between natural gas and propane without rewiring.
• Ventless, high‑efficiency heating – 99.9 % efficiency heats the space without a chimney.
• Remote & thermostat control – convenient temperature management and on/off operation.

Cons

• Requires a firebox that meets the minimum size specifications; may not fit smaller inserts.
• Battery‑powered remote and ODS sensor need periodic battery replacement (AA/AAA).

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1. Duluth Forge FDI32R Dual Fuel Fireplace

The Duluth Forge Dual Fuel Ventless Gas Fireplace Insert delivers powerful, efficient heat without the hassle of a chimney. Its patented dual‑fuel system lets you choose between natural gas or liquid propane, providing up to 32,000 BTU and comfortably warming spaces up to 1,500 sq ft. The unit is 99.9 % efficient and can be installed directly against a wall thanks to the zero‑clearance firebox, making it ideal for tight or retrofit installations.

A sleek black finish is complemented by nine hand‑painted ceramic‑fiber logs and a mesh screen that create a realistic, inviting flame. Control is effortless with the included remote featuring an LCD screen, standing‑pilot ignition, and manual flame‑adjustment. Installation is straightforward: the package comes with the logs, iron grate, remote, receiver, and a AAA battery. At 18.38″ H × 33.27″ W × 36.38″ D and 88.2 lb, it fits most standard openings, though a 42″ clearance to the ceiling is required.

Pros

• Dual‑fuel flexibility lets you switch between natural gas and propane based on availability or price.
• Ventless design eliminates chimney construction, saving time and installation cost.
• Remote control with LCD provides convenient on/off and flame‑adjustment from anywhere in the room.

Cons

• Requires a minimum 42‑inch ceiling clearance, which may limit placement in low‑ceiling rooms.
• As a ventless unit, it relies on proper room ventilation to maintain indoor air quality; a carbon‑monoxide detector is recommended.

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Buying Guide

When choosing a gas fireplace insert, focus on efficiency, size, and aesthetic fit to ensure it heats your space effectively while complementing your décor.

• Heating efficiency and BTU output – Look for models with high AFUE ratings and adjustable BTU ranges so the unit can warm the room without wasting fuel.
• Size and venting requirements – Measure your existing fireplace opening and verify that the insert’s dimensions and venting type (direct‑vent or ventless) match your installation constraints.
• Build quality and materials – Durable steel or cast‑iron bodies, tempered glass, and quality seals prolong lifespan and maintain a polished appearance.
• Features and controls – Remote controls, programmable thermostats, flame‑adjustment settings, and safety shut‑off mechanisms add convenience and improve comfort.
• Customer reviews and warranty – Check real‑world feedback for reliability and ensure the manufacturer offers a solid warranty to protect your investment.

By weighing these factors—efficiency, fit, durability, functionality, and reputation—you’ll select a gas fireplace insert that delivers consistent warmth, lasting performance, and visual appeal.

Frequently Asked Questions

What factors should I consider when choosing the best gas fireplace insert?

• BTU output: Match the insert’s heating capacity to the size of the room (≈ 30‑45 BTU per square foot).
• Ventilation type: Direct‑vent models are sealed and draw air from outside, while ventless inserts require proper room size limits.
• Efficiency rating: Look for an AFUE (Annual Fuel Utilization Efficiency) of 80 % +; high‑efficiency units can exceed 95 %.
• Style & size: Ensure the dimensions fit your existing firebox and complement your décor (traditional, contemporary, or linear).
• Controls: Remote, wall‑mounted, or smart‑home compatible controls add convenience.

Is a direct‑vent or ventless gas fireplace insert better for my home?

• Direct‑vent:

  • Pulls combustion air from outside and exhausts directly, so indoor air quality isn’t compromised.
  • Safer for most homes, especially those with children or pets.
  • Usually required by building codes for new installations.

• Ventless (vent‑free):

  • No external vent needed, making installation easier and often cheaper.
  • Provides up to 100 % heating efficiency but releases moisture and a small amount of combustion by‑products into the room.
  • Must meet strict local regulations and room‑size limits.

Bottom line: For most households, a direct‑vent insert offers the best balance of safety, efficiency, and flexibility.

How often should I service my gas fireplace insert to keep it running efficiently?

• Annual inspection: Have a certified HVAC or fireplace technician perform a full safety check, clean the burner ports, and inspect the venting system.
• Seasonal cleaning: Before each heating season, wipe down the glass, remove ash or debris, and check the pilot light or electronic ignition.
• Filter replacement: If your model has a filter (common in vent‑free units), replace it according to the manufacturer’s schedule—usually every 6–12 months.

Regular maintenance not only maintains efficiency (often 5‑10 % higher) but also prolongs the life of the insert and ensures safe operation.

Conclusion

Choosing the right gas fireplace insert hinges on balancing efficiency, aesthetic appeal, and installation practicality. Prioritize units with high AFUE ratings to maximize heat output while minimizing fuel consumption, and consider models that seamlessly complement your existing décor, whether you favor a sleek modern look or a classic hearth feel. Reliable venting options and straightforward maintenance further ensure long‑term performance and safety. By focusing on these core criteria—energy efficiency, design harmony, and ease of use—you can confidently select an insert that not only elevates your home’s comfort but also delivers lasting value and enjoyment for years to come.