Choosing a gas fireplace insert means committing to a fixture that delivers both heat and ambiance for years, yet the wrong pick leaves you with a weak flame, poor efficiency, or a unit that simply doesn’t fit your existing firebox. With dozens of BTU ratings, vented vs. ventless options, and log-style variations on the market, the decision requires a clear understanding of your room size, installation constraints, and desired realism.
I’m Mohammad Maruf — the founder and writer behind Drink4Good. I’ve spent months analyzing market trends and dissecting technical specifications to help you find a gas fireplace insert that matches your home without guesswork.
This guide breaks down the top models across efficiency, heat output, and design so you can confidently select the best gas fireplace insert for your specific fireplace opening and heating needs.
How To Choose The Best Gas Fireplace Insert
Selecting a gas fireplace insert is a multi-layered decision that balances heat output against visual realism and installation requirements. The market is split between vented log sets that burn inside your existing masonry chimney and ventless units that seal the firebox for maximum efficiency. Your choice will depend on your home’s existing setup, local building codes, and the level of supplemental heat you actually need. Below, I’ve outlined the key factors that separate a great insert from a frustrating purchase.
Vented vs. Ventless — Which Gas Insert Belongs in Your Home
The single biggest fork in the road is whether your fireplace insert will use a chimney flue or recirculate its air. Vented inserts, like the Peterson Real Fyre charred oak sets, burn with a taller, more realistic flame because they pull combustion air from the room and exhaust through the chimney. They also require a stainless steel liner to meet safety codes — an added cost. Ventless models, like those from Duluth Forge, use a sealed burner and ODS system to burn near 100% efficiency with zero smoke, making them ideal for rooms where a chimney doesn’t exist. However, some users notice a faint combustion smell during the burn-in period, and local codes may restrict their use.
BTUs and Room Size — Matching Heat Output to Your Space
A common mistake is buying a 30,000 to 40,000 BTU insert thinking more is always better, but an oversized unit will cycle on and off, wasting fuel and wearing out the valve. A well-insulated 1,000 square foot room typically needs 25,000 to 32,000 BTUs for primary heat, while a 400 square foot space only requires 15,000 BTUs for supplemental warmth. Remember: vented inserts lose heat up the chimney, so you’ll need a higher BTU rating compared to a ventless model of the same output. Always measure the firebox opening — width, height, and depth — before buying, as a too-large insert won’t fit and a too-small one looks lost inside the cavity.
Log Realism and Burner Technology
The visual appeal of a gas fireplace insert hinges on two components: the logs and the burner. Hand-painted ceramic refractory logs, like those from RealFyre, use multiple layers and charred textures that mimic real split oak or driftwood. Cheaper concrete or composite logs look flat and plasticky after a season. The burner type is equally important — a vented burner like the G45 produces a tall yellow flame that dances around the logs, while a vent-free burner (G9 or G10) produces a shorter, more compact flame. For the most realistic effect, look for sets with glowing ember beds and multi-piece log arrangements that let the flame wrap around the wood rather than just come from a central port.
Installation Complexity and Your Existing Fireplace
Installing a gas fireplace insert can be a weekend DIY project or a job for a licensed gas fitter, depending on your existing structure. If you already have a gas stub and a masonry flue, swapping an old set for a new vented insert is straightforward — you’ll need a flexible gas line and a damper clamp. Ventless inserts require no chimney work, but they demand precise firebox dimensions and adequate room ventilation. Freestanding mantel units, like the Comfort Glow or Duluth Forge DFS models, are essentially self-contained appliances that just need a gas line — they slide in place and don’t require any structural support. The key is measuring the firebox opening’s height and depth against the insert’s dimensions before ordering.
Quick Comparison
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| Model | Category | Best For | Key Spec | Amazon |
|---|---|---|---|---|
| Duluth Forge DFS-400R-2AC | Freestanding Ventless | Whole-room primary heat | 32,000 BTU, 1,500 sq ft coverage | Amazon |
| Peterson Real Fyre 24-Inch Charred Oak | Vented Log Set | Realistic flame in a masonry fireplace | 90,000 BTU, 24-inch log width | Amazon |
| Duluth Forge FDF400RT-ZC | Ventless Firebox | DIY wall build or zero-clearance install | 32,000 BTU, zero-clearance firebox | Amazon |
| Comfort Glow The Avalon | Freestanding Ventless | Medium room with decorative mantel | 26,000 BTU, 950 sq ft | Amazon |
| Peterson Real Fyre Split Oak Vent-Free | Ventless Log Set | High-efficiency supplemental heat | 21,000–36,000 BTU, ODS safety | Amazon |
| RealFyre 30-Inch Charred Aged Split Oak | Ventless Log Set | Large firebox with high realism | 37,000 BTU, 30-inch logs | Amazon |
| Empire DVD36FP30N | Direct-Vent Firebox | New construction or major renovation | 20,000 BTU, millivolt control | Amazon |
| Fireside Chimney Supply Basic FireSafe | Chimney Liner Kit | Retrofitting a vented insert | 6-inch x 15-foot, 316L stainless steel | Amazon |
| LegendFlame 71″ Smart Build-In | Electric Insert | Mantel-free modern installation | 1,500W heater, Alexa/Google voice control | Amazon |
| Touchstone Sideline Elite 60″ | Electric Insert | Custom entertainment wall with media finish | 1,500W heater, 60 color combos | Amazon |
| Dimplex Revillusion RBF36 | Electric Firebox | Built-in traditional look | 2,575W, Mirage flame panel | Amazon |
| Dimplex IgniteXL XLF74 | Electric Linear Insert | Large linear wall feature | 5,118 BTU, 74-inch width | Amazon |
| Real Flame Harlan 55″ Electric | Freestanding Electric | Rental-friendly plug-and-play | 5,100 BTU, 1,000 sq ft coverage | Amazon |
In‑Depth Reviews
1. Duluth Forge DFS-400R-2AC
This Duluth Forge freestanding ventless gas fireplace is the gold standard for whole-home supplemental heating. The 32,000 BTU burner heats up to 1,500 square feet with 99.9% efficiency, meaning nearly every drop of gas turns into usable warmth rather than escaping up a flue. The auburn cherry mantel is furniture-grade, with light distressing on the edges that gives it a lived-in, hearth-room feel.
Installation is straightforward for anyone comfortable with a gas line: the unit accepts either natural gas or liquid propane, so you can switch fuels later without buying a new insert. The remote control includes both manual and thermostat modes, letting you dial in a specific room temperature rather than constantly adjusting a flame knob. Owners report that after six and a half years of daily use, the unit still fires reliably with no mechanical issues.
The included double doors and sprayed brick liner create a traditional fireplace look, and the ceramic fiber logs — six hand-painted pieces — hold their color even after extended burn seasons. Heat output is impressive even at the lowest setting, with many users noting that it maintains 72°F in a 16×20 room during sub-zero winds. The only common caveat is that the gas starter “snap” is audible, and the unit must sit at least 42 inches from the ceiling.
Why it’s great
- Full-room 1,500 sq ft heating with 99.9% efficiency
- Furniture-grade mantel with authentic distressing
- Dual fuel flexibility — natural gas or liquid propane
Good to know
- Requires 42-inch clearance from the ceiling
- Heavier unit at 105 pounds; two-person lift recommended
2. Peterson Real Fyre 24-Inch Charred Oak
If what you want most is a massive, dancing flame that fills the firebox, this vented log set from Peterson Real Fyre delivers a staggering 90,000 BTUs through its G45 burner. The charred oak logs are ceramic refractory — not painted concrete — which gives them deep bark texture and a natural split look. Because this is a vented set, the flame extends upward freely without the oxygen-recirculation limits of a ventless burner.
The kit arrives complete: twelve refractory logs, a custom grate, glowing ember burner, sand, burner clips, and a damper clamp for the chimney. The match-light ignition keeps the system simple and serviceable — no batteries, no thermocouple to fail. Most owners report a 30-minute installation process when swapping out an old gas starter, though you’ll need pipe dope for the connections.
Heat output is intense enough for a large living area or open-plan basement, but remember that vented logs push some warmth up the chimney, so efficiency is lower than ventless. A small number of buyers expected logs to appear orange-glowing throughout, but the reality is that the flame sits at the base and wraps around the charred pieces — the overall effect is authentic to a real wood fire. Measure your firebox depth carefully; the set requires at least 14 inches of depth.
Why it’s great
- 90,000 BTU for intense, visible flame height
- Ceramic refractory logs with authentic charred oak texture
- Complete kit with burner, grate, embers, and sand
Good to know
- Manual match-light ignition — no remote control included
- Requires a chimney flue with a stainless steel liner
3. Duluth Forge FDF400RT-ZC
This zero-clearance firebox from Duluth Forge is the right choice if you’re building a fireplace into a wall that doesn’t have a masonry flue. The unit is rated for zero-clearance installation, meaning it can sit directly against wood framing — no masonry surround required. The 32,000 BTU ventless burner heats up to 1,500 square feet and is rated at 99.9% efficiency, so almost no heat escapes outside.
It comes with six hand-painted ceramic fiber logs, an iron grate, a sprayed brick liner, and a remote control with an LCD screen. The dual-fuel valve lets you run either natural gas or liquid propane, and the standing-pilot system means the remote can turn the burner on and off without a wall switch. The overall dimensions are 15.6 inches high by 29.1 inches wide, making it compact enough for a built-in media wall or a fireplace stand.
Installation is straightforward — users report completing it in a weekend with basic framing skills. The unit is quiet in operation, producing only a soft burner hum. One caveat: like most ventless models, the logs may arrive with minor damage during shipping, and the ceramic fiber is fragile — Duluth Forge has been responsive with replacement pieces. Some owners add a 6V adapter for consistent remote performance.
Why it’s great
- Zero-clearance design for framable installation
- Remote control with thermostat mode for set-and-forget comfort
- Dual-fuel valve accepts natural gas or propane
Good to know
- Fragile ceramic logs may arrive cracked; inspect immediately
- Requires 42-inch ceiling clearance above the firebox
4. Comfort Glow The Avalon
Comfort Glow’s Avalon model proves you don’t need to spend premium-level money to get a complete ventless fireplace with a real wood mantel. The walnut-finished surround measures 38.75 inches wide and stands 38 inches tall, giving it a traditional furniture profile that anchors a living room. Inside, the 26,000 BTU dual-fuel burner heats up to 950 square feet, and the piezo igniter lights the pilot with a single push.
The kit includes the firebox, mantel, hearth base, log set, and burner — you only need to supply a gas line and fittings. Assembly is straightforward; users typically have the mantel assembled in under an hour and appreciate that the entire unit slides into position without cutting into walls. The one-button control and adjustable thermostat make it easy to maintain a consistent room temperature, and the safety shut-off valve adds peace of mind for ventless operation.
Owners consistently note that this fireplace heats a 2,500-square-foot home comfortably as a secondary source, with the remote setting never needing to go past the lower numbers. The optional blower (sold separately) helps circulate heat into adjacent rooms. The lacquered walnut finish is well received, though the wood feels lighter than solid hardwood — it’s a veneer over engineered materials, which keeps the weight manageable at around 70 pounds.
Why it’s great
- Complete package with mantel, hearth, and firebox ready to assemble
- 26,000 BTU heats 950 sq ft efficiently
- Piezo push-button ignition — no matches or batteries needed
Good to know
- Optional blower required to circulate heat beyond one room
- Wood veneer mantel requires gentle handling during assembly
5. Peterson Real Fyre Split Oak Vent-Free
Peterson’s vent-free split oak log set combines the brand’s signature handcrafted log realism with an ANSI-certified G9 burner that incorporates an Oxygen Depletion Sensor. The seven ceramic logs mimic driftwood — charred, bark-textured pieces arranged to look like a natural wood pile — and the variable-flame remote lets you dial the heat from a low of 21,000 BTUs up to a full 36,000 BTUs. The ODS system automatically shuts the burner off if the room oxygen level drops, making this one of the safest ventless options on the market.
The burner is pre-assembled with a control valve and safety pilot. The included flexible connector kit simplifies the gas line hookup, and the ember kits create a glowing bed that stays illuminated even after the main flame is turned down. Owners praise the log placement instructions, which help position the ceramic pieces so the flame wraps around rather than hitting them directly. One user noted that the flame is loud on the highest setting — a common trait for high-BTU vent-free burners — but acceptable for the warmth it delivers.
Because this is a vent-free system, the firebox must be a sealed masonry or zero-clearance enclosure — you cannot use this set in an open fireplace without a glass front. The lifetime limited warranty on the logs and burner covers defects, and the unit produces zero visible smoke or soot. A faint gas smell may occur during the first few hours of operation as the ceramic pieces cure; it dissipates completely after the break-in period.
Why it’s great
- Oxygen Depletion Sensor for automated safety shutdown
- Variable-flame remote adjusts heat from 21K to 36K BTUs
- Seven handcrafted driftwood-look logs with deep bark texture
Good to know
- Requires a sealed firebox — not for open masonry fireplaces
- Burner noise is audible on high settings
6. RealFyre 30-Inch Charred Aged Split Oak
This 30-inch vent-free log set from RealFyre is designed for deeper, wider fireboxes. The G10 burner delivers between 19,000 and 37,000 BTUs — plenty of output for an 800-square-foot room — and the variable-flame remote gives you precise control without needing a wall switch or electrical outlet. The logs are charred aged split oak, handcrafted to show multi-toned bark and realistic check lines that mimic decades-old seasoned wood.
The complete kit includes the burner, custom grate, connector kit, flexible gas line, glowing embers, Bryte Coals, and lava granules. The ODS safety system meets ANSI standards for vent-free operation. Owners report a straightforward installation for those with basic gas-line experience, typically taking about 90 minutes. The remote allows you to adjust the flame height incrementally, which is useful for finding the perfect balance between warmth and visual drama.
One point to note: the maximum flame height on this G10 burner is moderate compared to a vented system. Some users wish the flame climbed higher, but the trade-off is that this unit produces no soot and no chimney loss — all 37,000 BTUs stay in the room. The pilot flame emits a low hum that is audible for a few minutes after shutdown, but it fades as the valve closes. Peterson’s lifetime warranty on the logs is a strong vote of confidence in the ceramic material’s durability.
Why it’s great
- 30-inch log span fits large firebox openings
- G10 burner with ODS and variable-flame remote
- Complete kit includes Bryte Coals and lava granules for ember realism
Good to know
- Flame height is moderate compared to vented log sets
- Minimum firebox opening: 34 inches wide, 14 inches deep
7. Empire DVD36FP30N
The Empire DVD36FP30N is a 36-inch direct-vent firebox designed for new construction or major renovations where you can run a coaxial vent pipe directly through an exterior wall. The millivolt control uses a standing pilot that generates its own electricity — no household wiring is needed — and the on/off switch lets you operate the burner without a remote. The Tahoe deluxe interior includes a contour burner that produces a wide flame pattern across the firebox floor.
This unit is a firebox only: it does not include a mantle, brick liner, vent piping, gas hose, blower, or remote. Those components are purchased separately and chosen to match your specific installation. The 20,000 BTU heat output is moderate — suitable for a 260-square-foot room — making this a better fit for smaller living spaces or bedrooms where you want a sealed combustion system. The direct-vent configuration draws combustion air from outside and exhausts outdoors, maintaining indoor air quality without the need for an open flue.
Owners note that the glass front is removable and seals tightly, providing a clean, modern appearance. The powder-coated finish can show minor defects; inspect the frame upon delivery. Empire’s support has been described as inconsistent, so sourcing from a reputable dealer who offers returns is wise. For the price, you get a solid, CSA-certified firebox that accepts aftermarket door sets and barrier screens, giving you customization flexibility.
Why it’s great
- Sealed direct-vent combustion for excellent indoor air quality
- Millivolt control requires no external electricity
- 36-inch width fits standard rough openings
Good to know
- Firebox only — mantle, vent kit, and gas line sold separately
- 20,000 BTU output is best for smaller spaces
8. Fireside Chimney Supply Basic FireSafe Kit
If you’re installing a vented gas fireplace insert, this stainless steel chimney liner kit is a non-negotiable safety component. The 316L alloy resists corrosion from flue gases, and the 7-ply seams with 10 corrugations between each seam create an airtight barrier that prevents carbon monoxide from leaking into the house. The kit includes 15 feet of 6-inch liner, an insulation blanket, adhesive, retractable mesh, foil tape, top plate, rain cap, and two clamps — everything needed for a code-compliant installation.
The liner is flexible enough to navigate moderate chimney bends, but you must measure your total chimney height accurately before ordering. The insulation blanket improves draft and reduces condensation inside the flue. One person can handle the lightweight material, though two people make the top-to-bottom feeding easier. The hardware stores and customer reviews consistently mention clear instructions and fast delivery.
The lifetime transferable warranty covers wood, pellet, gas, and oil installations — a rare benefit at this price tier. Some users note that the steel is thinner than commercial-grade liners (easily cut with snips), but it holds up well after multiple seasons. For the price, this kit is the most cost-effective way to safely connect a vented gas insert to an existing masonry chimney.
Why it’s great
- 316L stainless steel resists flue gas corrosion
- Complete kit: liner, insulation, top plate, rain cap
- Lifetime transferable warranty for all fuel types
Good to know
- Thinner steel than premium commercial liners
- Requires accurate chimney height measurement before ordering
9. LegendFlame 71″ Smart Build-In
The LegendFlame 71-inch build-in electric insert offers smart-home integration that gas units can’t match. It works with Alexa and Google Assistant, so you can turn the flames on or off with your voice, and the Wi-Fi connection lets you adjust the flame color and heat level from your phone. The unit can be configured as single-sided, three-sided, or corner-view, making it adaptable for media walls, room dividers, or peninsula layouts.
The dual-color flame system combines orange with eight additional colors, and the fuel bed — logs plus an eight-color LED strip — adds a modern glow. The 1,500W heater provides up to 5,100 BTUs of supplementary heat, which is enough for a 400-square-foot room. The flame-only mode lets you enjoy the visual effect without heat year-round. The included remote covers all functions, but the voice and app controls are what set this apart from traditional gas inserts.
Installation is build-in: you frame an opening 71 inches wide, 15.7 inches high, and 5.5 inches deep, then slide the unit in and finish around it. The CSA certification covers safety shut-off and overheat protection. One user noted the logs lack a glowing ember effect for maximum realism, but the crackling sound effect adds an authentic layer. The one-year warranty is shorter than gas units, but the price reflects the simpler electric mechanism.
Why it’s great
- Voice control via Alexa and Google Assistant
- Three-sided view option for custom wall layouts
- Dual-color flame with 8 accent color choices
Good to know
- Logs lack an integrated glowing ember effect
- Only one-year limited warranty
10. Touchstone Sideline Elite 60″
The Touchstone Sideline Elite 60-inch electric fireplace is engineered for recessed installation where the frame sits flush with drywall or tile. The minimal black steel frame and large viewing area make the flame the focal point. With 6 flame colors and 10 media light colors, you can create 60 unique combinations — orange flames with blue embers, white flames with amber logs, and countless others. Three flame speeds and five intensity levels control the visual energy.
The 1,500W heater (approximately 5,100 BTUs) warms up to 400 square feet, and the thermostat can be set from 68°F to 88°F. The unit can be plugged into a standard outlet or hardwired. The included accessories — log set, driftwood, and acrylic crystals — let you switch between traditional and contemporary looks. The remote control manages all settings, and the unit remembers your last flame configuration when turned off at a wall switch.
Owners consistently call this the most realistic electric flame they’ve seen, with layered projections that avoid the flat “tv screen” look. The quiet fan is barely audible at low heat, and the upper-front heat vents let you place a TV directly above without heat damage. Installation requires precise framing: the rough opening must be 58.44 inches wide by 18 inches high. The app-based control adds another layer of convenience, though the remote button icons are small and take time to learn.
Why it’s great
- 60 unique flame and media color combinations
- Flush recessed installation with minimal frame
- Includes log set, driftwood, and crystals for varied looks
Good to know
- Heater rated at 1,200W measured (vs. advertised 1,500W)
- Precise framing dimensions required for clean installation
11. Dimplex Revillusion RBF36
Dimplex’s Revillusion RBF36 is a 36-inch built-in electric firebox that uses a Mirage Flame Panel with partially frosted acrylic to project flames without visible reflections. The herringbone brick pattern on the interior walls adds a traditional look that closely mimics a real masonry firebox. At 2,575W (240V connection), it produces up to 8,786 BTUs — the highest heat output among electric fireplace inserts in this guide.
The unit can be surface-mounted and plugged into a standard 120V outlet (1,375W mode) or fully recessed and hardwired at 208V or 240V for maximum output. The LED flame effect is compatible with the flame-only mode, so you can enjoy the visual without heat. The included remote lets you adjust flame brightness and heat settings, but many users prefer the unit’s control panel as a backup due to the remote’s plastic build.
At night, the flame effect is remarkably convincing, with layered shadows that give depth to the log bed. The heater fan is slightly louder than some competitors, and the temperature sensor placement near the top of the unit causes the heater to cycle off before the room reaches the set point — owners recommend running it on max heat to bypass this issue. After three years of daily use, owners report zero mechanical failures, making this one of the more reliable electric inserts for continuous operation.
Why it’s great
- 2,575W / 8,786 BTU at 240V for serious electric heat
- Mirage Flame Panel eliminates glass reflection for better realism
- Herringbone brick interior gives a traditional firebox aesthetic
Good to know
- Heater fan is louder than average; sensor placement causes cycling
- Remote control feels toy-grade; rear control panel is better
12. Dimplex IgniteXL XLF74
The Dimplex IgniteXL XLF74 is the widest electric fireplace insert in this lineup, spanning 74 inches for a dramatic linear wall installation. Dimplex’s exclusive Multi-Fire XD Technology projects flames that appear to float above the media bed and bounce across the width, creating a cinematic effect. The unit can be surface-mounted or fully recessed, and the hardwired connection supports either 120V (1,500W) or 240V (2,500W) for the heater.
At 240V, the 5,118 BTU output heats up to 1,000 square feet, making this one of the few electric inserts capable of primary-room heating. The included acrylic crystals and remote control let you customize the flame color and intensity. The flame-only mode disconnects the heater entirely, so you can enjoy the visual year-round without raising the room temperature. The unit is heavy at 103 pounds, so a two-person lift and proper wall framing are mandatory.
Owners consistently describe the flame as the most realistic electric option on the market — the projection system creates a three-dimensional effect that rivals gas. The heat output is adequate but not as radiant as a real gas flame; it warms the air rather than radiating to your skin. Packaging issues have been reported, with some units arriving with bent frames, so inspect the crate immediately. Dimplex’s customer service is responsive to warranty claims, but the premium price puts this firmly in the “statement piece” category.
Why it’s great
- 74-inch width creates a dramatic linear wall feature
- Multi-Fire XD Technology projects 3D-level flame realism
- 240V connection delivers 5,118 BTU for up to 1,000 sq ft
Good to know
- Heavy 103-pound unit requires careful wall framing
- Packaging damage reported; inspect immediately on delivery
13. Real Flame Harlan 55″ Electric
The Real Flame Harlan 55-inch electric fireplace is the simplest path to a fireplace aesthetic: assemble the white mantel, insert the electric firebox, and plug it into a standard outlet. No gas line, no venting, no permit. The 5,100 BTU quartz heater warms up to 1,000 square feet, and the six-color flame system lets you switch between realistic orange, blue, and multicolor modes. The flame can be used with or without heat, making it a year-round visual accent.
Assembly is straightforward — the mantel ships in two boxes and goes together in about 20 minutes with no tools. The anti-topple safety device secures the unit to the wall, and the automatic safety shut-off provides peace of mind. The replaceable insert design means you can swap the heater section later without replacing the entire mantel. The remote control manages all functions, including brightness, flame color, thermostat, and timer (1 to 8 hours).
Owners love the clean white finish and the realistic log detail. The heating efficiency is good for an electric unit — about 25 cents per hour to run. The downside is the lack of a crackling sound effect (you can add a separate sound machine), and the thermostat accuracy is loose, sometimes cycling on and off before the room reaches the set temperature. This is a solid choice for renters or anyone who wants a fireplace without construction.
Why it’s great
- No installation required — assemble, plug in, and enjoy
- Replaceable heater insert for future upgrades
- Six flame colors with brightness control for year-round use
Good to know
- No built-in crackling sound effect
- Thermostat cycles on/off before reaching set temperature
FAQ
Can I install a ventless gas insert in a bedroom?
How do I measure my firebox for an insert?
What is the difference between a millivolt and an electronic ignition system?
Do I need a chimney liner for a vented gas insert?
How long does a gas fireplace insert last?
Final Thoughts: The Verdict
For most users, the best gas fireplace insert winner is the Duluth Forge DFS-400R-2AC because it combines a furniture-grade mantel with 32,000 BTUs of ventless heat that can warm 1,500 square feet at 99.9% efficiency. If you want a dramatic, towering flame and have an existing chimney, grab the Peterson Real Fyre 24-Inch Charred Oak Vented Set. And for a no-install electric solution that lets you test the fireplace lifestyle before committing to gas, nothing beats the Real Flame Harlan 55-Inch Electric Mantel.