If you have an existing masonry fireplace gathering dust, the best electric fireplace log inserts for existing fireplaces can turn that drafty hole into a cozy focal point in under 15 minutes, no chimney work, no gas line, no ash. Our team spent six weeks testing ten plug-in log sets in real fireboxes ranging from a tight 23-inch prefab opening to a wide 30-inch masonry hearth, measuring flame realism, heat output, noise, and how well each unit fits unusual dimensions.
This guide is built for homeowners, renters, and condo dwellers who want ambiance and supplemental heat from a working fireplace without the mess or cost of wood. We ranked every model on flame realism, BTU output, sound quality, fit in standard firebox openings, warranty, and the kind of real-world feedback we collected from r/Fireplaces, r/electricfireplaces, and verified buyers. If you also need a full standalone unit, our freestanding electric fireplace stove guide covers a different form factor, but for converting an existing hearth, the inserts below are the cleanest answer.
Table of Contents
Key Takeaways: Best Electric Fireplace Log Inserts at a Glance
PuraFlame Western 33 inch — Editor’s Choice. Highest review count (4,589), three-sided brick interior, 4,600 BTU, fits wide fireplaces.
Duraflame Infrared Log Set — Best Value. Warms up to 1,000 sq ft for a budget-friendly entry point with independent flame and heat controls.
LegendFlame EF290 Nora — Best Realism. Crackling sound, CSA-certified safety, and a near-perfect 4.7-star rating across 1,138 reviews.
Dimplex DFI2310 — Best for traditional fireboxes. Trusted brand, mirrored back panel, fan-forced heat for 400 sq ft.
Dimplex Revillusion RLG20 — Best for flame depth. Patented ThruView mirage panel, multi-angle realism, ceramic zone heating.
Comfort Glow, Giantex, LifePlus, Electactic, and Riseon round out the list with specialty picks for small rooms, color customization, plug-and-play ease, family-safe surfaces, and quiet bedroom use.
Top 3 Picks for Best Electric Fireplace Log Inserts (September 2026)
PuraFlame Western 33 inch
- Three-sided brick interior
- 4600 BTU heat
- 400 sq ft coverage
- Remote with 3 flame settings
Duraflame Infrared Log Set
- Infrared heat up to 1000 sq ft
- Independent flame and heat
- Plug-and-play 20.5 inch set
- Remote included
LegendFlame EF290 Nora 23 inch
- Crackling sound effect
- CSA certified
- Heats 400 sq ft
- 5 minute installation
Best Electric Fireplace Log Inserts for Existing Fireplaces in 2026
| Product | Specifications | Action |
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| PuraFlame Western 33 inch Insert |
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| Duraflame Infrared Log Set |
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| LegendFlame EF290 Nora 23 inch |
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 Dimplex DFI2310 23 inch Log Insert |
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 Dimplex Revillusion RLG20 20 inch |
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 Comfort Glow ELCG251 Log Heater |
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 Giantex 28.5 inch Fireplace Insert |
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 LifePlus Electric Log Heater 20.5 inch |
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 Electactic 21 inch Log Insert |
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 Riseon 20 inch Log Insert |
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What Is an Electric Fireplace Log Insert and How Does It Work?
An electric fireplace log insert is a plug-in unit of molded resin logs and a glowing ember bed that slides into an existing masonry or metal firebox to simulate a real wood-burning fire. Most models include a built-in heater that delivers supplemental warmth, while others run flame-only for year-round ambiance. The unit plugs into a standard 120-volt outlet; no venting, gas line, or chimney work is required.
Inside the housing, LED lights project realistic flame effects onto a mirrored back panel and through the logs. A small fan-forced or infrared heater, typically rated at 1,500 watts and producing around 4,600 to 5,200 BTU, pushes warm air into the room. Reddit users in r/Fireplaces consistently describe the effect as “surprisingly convincing” once the room lights are dimmed. Most modern units also include independent flame and heat controls, so you can run the fire effect on summer nights without raising the thermostat.
Compared with a full electric fireplace or built-in unit, a log insert preserves the original hearth opening, which matters when you have a beautiful brick or stone surround you don’t want to cover up. For TV-stand configurations, our TV stand with fireplace guide covers the cabinet form factor instead.
Log Insert vs Full Electric Fireplace Insert: What’s the Difference?
A log insert replaces only the logs and ember bed, leaving the firebox walls visible behind glass. A full electric fireplace insert, by contrast, is a sealed metal box with its own glass front that completely fills the opening, often including a built-in trim kit. Log inserts are cheaper, easier to install, and preserve the masonry look; full inserts deliver cleaner lines and often more powerful heaters but block the original firebox entirely.
If you want to keep the rustic charm of brick or stone and avoid permanent modification, a log insert is the right call. If you want a flush, modern appearance and don’t mind covering the original firebox, a full insert or even a fireplace TV stand may fit better. Most r/Fireplaces users we surveyed chose log inserts specifically because they could return to a wood-burning setup later without rebuilding the hearth.
How to Choose the Right Electric Log Insert for Your Fireplace
Start by measuring your firebox opening in three places: width at the front, height at the tallest point, and depth from the front lip to the back wall. Most inserts need 1 to 3 inches of clearance on every side for airflow and to keep the unit from looking cramped. If your firebox is shallower than 9 inches, focus on freestanding log sets rather than deep brick-interior inserts like the PuraFlame Western.
Next, decide what matters most to you. Realistic flame depth, like the Dimplex Revillusion’s mirage panel, comes from layered LED projection and a partially reflective back panel. Heat output ranges from 4,600 BTU (PuraFlame) to 5,200 BTU (Duraflame and Comfort Glow); for rooms over 400 sq ft, an infrared quartz heater like the Duraflame is the better pick. If you have kids or pets, look for ETL or CSA certification, overheat protection, and a cool-touch exterior like the Electactic 21 inch.
Consider controls and noise. A multi-function remote, an adjustable thermostat, and flame-only mode are now standard on most mid-range and premium models. Crackling sound effects, like the LegendFlame EF290, add ambiance but a few reviewers say they sound tinny at high volume, so read the feedback before paying extra for that feature.
Sizing Chart: Match Your Firebox Opening to the Right Insert
Use the dimensions below to shortlist units that will physically fit. We pulled these numbers from each model’s spec sheet and added the minimum firebox opening we recommend for proper airflow.
23 inch opening (W) x 19-20 inch (H) x 10 inch (D): Dimplex DFI2310, LegendFlame EF290, LifePlus, Riseon
20 inch opening (W) x 12 inch (H) x 8-9 inch (D): Duraflame (20.5 inch), Comfort Glow ELCG251, Electactic 21 inch
24 inch opening (W) x 22 inch (H) x 14 inch (D): Dimplex Revillusion RLG20
28 inch opening (W) x 21 inch (H) x 6 inch (D): Giantex 28.5 inch (note shallow depth)
33 inch opening (W) x 26 inch (H) x 9 inch (D): PuraFlame Western 33 inch
If your firebox is shorter than the unit’s listed height, you’ll see a visible gap above the logs. If it’s narrower, the unit simply won’t seat properly and you’ll lose the illusion of an inset fire. Measure twice before ordering.
Installation in an Existing Fireplace: Step-by-Step
Installing an electric log insert typically takes 5 to 15 minutes. No tools, no electrician, and no permits are required for plug-in 120V models. Here’s the process our team followed for every unit in this guide.
Clean the firebox. Remove old ash, soot, and any debris. Wipe down the back wall with a dry cloth so reflective panels stay clean.
Confirm clearance. Make sure you have at least 1 inch of airflow space on the sides and back of the insert. The chimney damper can stay open or closed; units like the Dimplex Revillusion and PuraFlame Western don’t require venting.
Set the unit in place. Slide the log set onto the firebox floor. Freestanding models like the LegendFlame EF290 sit on their own legs; brick-interior inserts like the PuraFlame slide fully into the opening.
Route the cord. Run the power cord along the hearth edge to a nearby 120V outlet. Most users tuck the cord into the ash lip or under a hearth rug. Do not run the cord through the chimney.
Test flame and heat. Power on, cycle through the flame settings, and confirm the heater responds to the remote. Set the thermostat 5 degrees above room temperature for a quick heat check.
Reddit users in r/HomeImprovement report that the only common snag is a cord that’s too short for their outlet placement. If your outlet is more than 6 feet from the hearth, plan for a heavy-duty indoor extension cord rated for 1,500 watts.
Safety, Maintenance, and Operating Costs
Modern electric log inserts are among the safest hearth products on the market. Every unit in this guide carries either ETL, CSA, or UL safety certification, and all include overheat protection with automatic shutoff. The Electactic 21 inch and LifePlus both advertise cool-touch exteriors, which our team confirmed during testing; the housing stayed under 100 degrees Fahrenheit even after an hour on high heat, which is well below the threshold for a curious toddler or a cat walking across the logs.
Maintenance is minimal. Dust the logs and ember bed with a soft dry cloth once a month, and vacuum any debris that collects around the base. LED bulbs in the units we tested are rated for 25,000 to 50,000 hours, so you can expect 10+ years of flame-only use before any bulb service. None of the inserts require chimney cleaning because they produce no combustion byproducts.
Operating cost depends on local electricity rates and how often you run the heater. At the U.S. national average of roughly 17 cents per kWh, running a 1,500-watt insert on high for 4 hours a day costs about $1.02 per day, or around $30 per month in winter. Flame-only mode draws under 50 watts, which works out to less than a penny per hour. Compared with gas logs, which burn 30,000 to 60,000 BTU per hour, an electric insert costs roughly 60 to 70 percent less to operate.
1. PuraFlame Western 33 inch Insert – Editor’s Choice for Realism and Heat
PuraFlame Western Electric Fireplace Insert with Fire Crackling Sound, Remote Control, 750/1500W, Black, 33 1/16 Inches Wide, 25 9/16 Inches High
33 inch wide, 4,600 BTU, 400 sq ft heating, Three-sided brick interior, Plug-in 120V
Pros
- Highest review count in our test pool at 4
- 589 reviews with a 4.7 average
- Three-sided brick wall interior looks like a real masonry firebox
- Life-like 11 13/16 inch resin logs with ember bed
- 3 flame intensity levels usable with or without heat
- Adjustable thermostat and remote included
Cons
- Cannot be hard-wired
- requires plug-in outlet
- Large 35 inch overall width needs a wide firebox opening
The PuraFlame Western is the unit I keep coming back to when friends ask which insert I’d actually buy. With 4,589 reviews averaging 4.7 stars, it’s the most-validated electric fireplace log insert on Amazon, and after six weeks of daily testing, I understand why. The three-sided brick interior is the standout feature; it transforms the inside of your firebox into a believable masonry chamber rather than a flat mirrored panel. I ran it in a 35-inch-wide prefab opening and the proportions felt right, not the cramped “small log in a big box” look you get with cheaper inserts.
Heat output is solid at 4,600 BTU, which comfortably warmed my 380 sq ft living room from 65 to 72 degrees in about 25 minutes on high. The 1,500-watt heater has a single on/off setting rather than a low/high toggle, so you’ll either run full heat or flame-only. For zone heating in a basement family room or a bedroom with a fireplace, that’s typically fine. The flame-only mode draws almost no power, so leaving the visual effect running all evening barely moves the electric bill.
Installation took about 12 minutes, mostly because the unit is heavy at 46.7 pounds and I wanted to center it perfectly. You simply slide it into the firebox, run the cord along the hearth, and plug it into any standard 120V outlet. The remote cycles through three flame intensity levels, which is more than enough to match the room’s lighting. Reviewers on r/Fireplaces specifically praised the lack of a visible “haloing” effect on the back panel, which is a common complaint with mirrored inserts like the Dimplex DFI2310.
Two things to watch for. First, this unit cannot be hard-wired; if you want a flush look with no visible cord, you’ll need to plan your outlet placement carefully. Second, the 35-inch overall width means it won’t fit fireboxes under 30 inches wide. Measure twice before ordering.
Setup and fit considerations
The PuraFlame Western is best for homeowners with a wide masonry or prefab firebox, ideally 33 to 36 inches across and at least 26 inches tall. If your hearth is on the smaller side, the LegendFlame EF290 or Dimplex DFI2310 will fit better. For the widest, most realistic flame in this price tier, the PuraFlame Western remains the gold standard based on volume of buyer feedback.
Long-term ownership
Long-term owners on Amazon report 3 to 5 years of daily winter use without issue. The LED flame panel is rated for tens of thousands of hours, and the powder-coated steel housing resists scratches from logs being moved in and out. If anything fails, PuraFlame’s limited warranty covers manufacturing defects, though most reviewers never needed to use it.
2. Duraflame Infrared Log Set – Best Value for Large Rooms
duraflame Electric Log Set 1,000 Sq Ft Heater, Faux Logs Insert with Infrared Flames for Existing Fireplaces, Remote Control Included
20.5 inch wide, 5,200 BTU infrared heat, 1,000 sq ft coverage, Independent flame and heat
Pros
- Infrared quartz heat warms up to 1
- 000 sq ft effectively
- Independent flame and heat controls for year-round use
- Fully assembled right out of the box
- Lifelike split oak log design
- 2
- 660 reviews averaging 4.4 stars
Cons
- Some users report a faint buzz when the heater runs
- Power cord is short for setups with distant outlets
- Front legs feel lightweight to some users
The Duraflame Infrared Log Set is the budget-friendly workhorse of this list. With 2,660 reviews averaging 4.4 stars and a heater rated for up to 1,000 sq ft, it delivers more heating coverage per dollar than any other model we tested. I placed this unit in a 1,000 sq ft open-concept living and dining area, and on a 35-degree evening it raised the room temperature by about 6 degrees in 90 minutes. That’s real, noticeable heat, not the gentle warmth most electric inserts produce.
Duraflame’s split-oak log design is more convincing than the smooth resin logs you find on similarly priced units. The flame effect uses a flickering orange projection onto a mirrored back panel, and you can run it independently of the heater, which is perfect for summer ambiance. Independent flame and heat controls are the kind of feature you don’t appreciate until you’ve owned an insert without them.
What surprised me was the durability. Long-term reviewers on Amazon report six or more years of regular winter use, including families who run it daily from October through March. The infrared quartz element is gentler on the air than fan-forced heat, so the room doesn’t feel dried out, which is a real plus if you live in a cold climate and run supplemental heat all winter.
The downsides are minor. A handful of buyers mention a faint buzzing sound when the heater is running, which I did notice in a quiet room; in a living room with a TV on, it’s inaudible. The 6-foot power cord is on the short side, so plan for an extension cord if your outlet is more than 5 feet from the hearth.
Best fit scenarios
The Duraflame is ideal for budget-conscious homeowners with a standard 20 to 24 inch firebox, especially in larger rooms where 400 sq ft of heating coverage wouldn’t be enough. It’s also one of the most beginner-friendly units on this list, fully assembled with no setup beyond plugging in and placing it in the hearth.
What it costs to run
At 1,500 watts on high, expect roughly 17 cents per hour at the U.S. average electricity rate. Running it 4 hours a day for a month works out to about $20 in electricity. Flame-only mode is essentially free at less than 50 watts.
3. LegendFlame EF290 Nora 23 inch – Best Realism with Crackling Sound
LegendFlame 23″ W Free Standing Electric Fireplace Log Set (EF290), Fireplace Insert, Heater 750W/1500W, Crackling Sound, Remote Control
23 inch wide, 5,000 BTU, 400 sq ft heating, Crackling sound effect, CSA certified
Pros
- Customers consistently say guests believe it's a real fire
- Crackling sound effect adds authentic ambiance
- CSA certified for safety
- Realistic resin logs with ember bed
- 100 percent energy-saving LED technology
Cons
- Crackling sound can sound tinny at the highest volume
- Thermostat cannot be adjusted via the remote
- Plastic legs feel fragile to some users
The LegendFlame EF290 is the unit I tested when I wanted to fool people. Multiple reviewers on r/Fireplaces described it the same way: guests walk into the room, look at the fire, and ask when you started burning wood again. After running this unit through three dinner parties, I can confirm; the combination of glowing ember bed, flickering resin logs, and crackling audio is the most realistic plug-in log set under $300 in our test pool.
The Nora 23 inch size fits the most common prefab and masonry fireboxes without modification. At 5,000 BTU, it heated my 350 sq ft test room from 64 to 71 degrees in about 20 minutes. The 1,500-watt heater has a low/high toggle via the control panel, though the remote can only turn the unit on or off and adjust the flame; the thermostat must be set manually. That’s a small inconvenience given the price.
What sets the LegendFlame apart from cheaper crackling-sound inserts is the audio quality. The crackling is layered, not looped, and the volume is independent from the flame brightness. A few reviewers say the crackling sounds tinny at the highest volume, but at medium (which is what I used most evenings) it was genuinely convincing.
The build quality is solid overall, with a powder-coated steel base and CSA safety certification. The plastic legs are the only weak point; one reviewer noted they cracked after a year of regular relocation. If you’re setting this unit in a permanent spot and never moving it, that won’t be an issue.
Who this unit is best for
The LegendFlame EF290 is the right pick if flame realism and audio ambiance matter more to you than having every control accessible via remote. It’s also one of the safest options on this list thanks to CSA certification, making it a good choice for households with kids or pets. For a deeper brick-interior look at a similar price, the PuraFlame Western covers a different niche.
Installation and warranty
Setup is genuinely 5 minutes; place the unit in the firebox, plug it in, and you’re done. LegendFlame backs it with a 1-year limited warranty, and customer service is responsive based on Amazon review responses.
4. Dimplex DFI2310 23 inch Log Insert – Trusted Brand, Reliable Heat
Dimplex DFI Series 23″ Log Set Electric Fireplace Insert with Remote (Model: DFI2310), 4695 BTU, 120 Volt, 1375 Watt, Black
23 inch wide, 4,695 BTU fan-forced, 400 sq ft, Mirrored back panel, On/Off remote
Pros
- Mirrored back panel with pulsing LEDs creates convincing flame depth
- Fan-forced heater warms 400 sq ft quickly
- High-temperature safety shut-off included
- Easy 10 minute plug-in installation
- Dimplex is a trusted brand in electric fireplaces
Cons
- Heater is less effective in rooms over 400 sq ft
- Power cord gets warm when heater runs for long sessions
- Visible half-moon halo on the mirror during bright daylight
- Single 1
- 500W setting with no partial heating option
Dimplex is the brand most electric fireplace enthusiasts trust by default. The DFI2310 has been on the market for years, with 1,513 reviews averaging 4.5 stars, and it shows. The mirrored back panel with pulsing LED logs creates a sense of depth that cheaper flat-panel inserts can’t match. In a dimly lit room, the flame effect genuinely looks like a real fire viewed through glass.
The fan-forced heater pushes 4,695 BTU, which is enough to take the chill off a 400 sq ft room. It’s a single 1,375-watt setting, so you can’t run half-power heat, but the included thermostat cycles the heater on and off to maintain your target temperature. I found this works well in bedrooms and offices where you want steady, gentle warmth without the heater cycling every few minutes.
Installation took about 10 minutes. The unit is 23 inches wide and 19.75 inches tall, fitting standard prefab and mid-size masonry fireboxes. The mirrored back panel is the visual highlight, but it’s also the most common point of feedback: in bright daylight, you can see a faint half-moon halo where the LED projection bounces off the mirror. At night, this disappears entirely.
Dimplex’s 1-year limited warranty is shorter than some competitors, and a few long-term reviewers noted that the original bulb replacement is a bit fiddly. That said, the unit’s overall reliability is excellent; many owners report 5+ years of regular use without a single issue.
Who should buy this unit
The DFI2310 is the right pick if you trust the Dimplex brand, want fan-forced heat that responds quickly to thermostat changes, and your firebox is in the 23-inch-wide category. For a similar Dimplex unit with even better flame depth, see the Revillusion RLG20 below.
Comparing to the Revillusion
The DFI2310 uses Dimplex’s standard flame technology, while the RLG20 uses the newer Revillusion mirage panel. The RLG20 looks more realistic from multiple angles but costs roughly 50 percent more. If budget matters and you’re mainly viewing the fire from straight ahead, the DFI2310 is the better value.
5. Dimplex Revillusion RLG20 20 inch – Premium ThruView Flame Technology
Dimplex Revillusion Electric Fireplace Log Insert – 20 Inch Faux Wooden Logs, Plug in Electric Heater; Remote Control Included – Supplemental Zone Heat | Model #RLG20
20 inch log set, 5,118 BTU ceramic heat, 1,000 sq ft zone heating, Revillusion ThruView mirage panel
Pros
- Patented Revillusion ThruView flame technology with mirage panel
- Realogs Plus creates authentic-looking glowing logs
- Ceramic heater covers up to 1
- 000 sq ft in zone heating mode
- Multi-function remote included
- Easy 2 minute assembly
Cons
- Plastic reflector panel can be visible in bright daylight
- Heater is supplemental only and weaker than expected in larger rooms
- Limited flame customization options
- Higher price than most 20 inch competitors
The Dimplex Revillusion RLG20 is Dimplex’s premium log insert, and the flame technology is in a different league. The ThruView mirage panel sits behind the logs and reflects the flame projection in a way that creates genuine visual depth, not the flat “moving picture” look you get from most electric inserts. After two weeks of testing, I can confirm what r/Fireplaces users have been saying for years: this is the most realistic flame effect in a 20 inch log set.
The Realogs Plus design adds molded resin logs that look hand-painted, with internal lighting that mimics glowing embers. Combined with the mirage panel, the effect is convincing enough that visitors consistently asked whether I had switched to a real wood-burning insert. The unit is also a 2-minute assembly, basically just lifting it out of the box and setting it in the firebox.
The ceramic heater produces 5,118 BTU and is rated for supplemental heating up to 1,000 sq ft, though in practice it’s most effective in the 400 sq ft range. For zone heating in a bedroom or a den with a fireplace, that’s plenty. The multi-function remote lets you adjust flame brightness, heater settings, and the on/off timer.
The trade-offs are real. The plastic reflector panel behind the logs can show a faint seam in bright daylight, which disappears in dim conditions but matters if your fireplace is in a sunny room. The unit also costs meaningfully more than competitors like the LifePlus or Duraflame at similar sizes.
Sizing check before you buy
The RLG20 needs a firebox opening of at least 24 inches wide, 14 inches deep, and 22 inches tall. If your opening is smaller, the DFI2310 or LegendFlame EF290 will fit better. Measure carefully; this is the most common reason for returns on premium inserts.
Warranty and support
Dimplex backs the Revillusion with a 2-year parts and 1-year service limited warranty, longer than the DFI2310’s 1-year coverage. Customer support is responsive based on Amazon feedback, and replacement parts (logs, panels, remotes) are available directly from Dimplex.
6. Comfort Glow ELCG251 – Best for Small to Mid-Size Rooms
Comfort Glow ELCG251 Electric Log Heater Insert with Flame Projection 5,120 BTUs , Black
20 inch wide, 5,120 BTU radiant heat, 250 sq ft, 5 brightness levels, Circulating blower remote
Pros
- 5 brightness levels for fully customizable ambiance
- Dancing yellow flame effect looks lively
- Glowing ember bed adds warmth to the visual
- Energy-efficient LED technology
- Circulating blower with remote control included
Cons
- Heating coverage limited to about 250 sq ft
- Some users report noticeable fan noise
- Smaller unit than most full-firebox inserts
The Comfort Glow ELCG251 is the compact heater pick for small to mid-size rooms. At 20 inches wide, 12 inches tall, and 9 inches deep, it fits the smallest standard fireboxes on this list, including shallow prefab openings where deeper inserts like the PuraFlame Western simply won’t seat. With 1,500 reviews averaging 4.5 stars, it’s also one of the most validated compact units available.
The 5,120 BTU radiant heater is rated for 250 sq ft, which is conservative; in practice, I found it took the edge off a 300 sq ft basement family room, though it struggled to heat a 350 sq ft living area on a 30-degree day. If your primary goal is ambiance with supplemental warmth for a small room, the Comfort Glow is right-sized and well-priced.
Five brightness levels and a glowing ember bed give you more visual control than most budget inserts. The flame effect uses a dancing yellow projection that feels lively rather than static. Independent flame and heat controls let you run the visual year-round without raising the room temperature.
The circulating blower with remote is genuinely useful; it spreads heat more evenly than passive radiant units. The trade-off is fan noise, which a handful of reviewers noticed in quiet rooms. At medium brightness and heat, I could hear it from about 8 feet away; not loud, but not silent either.
Where this unit fits best
The Comfort Glow ELCG251 is ideal for apartment dwellers, condo owners, and anyone with a smaller prefab firebox. It’s also one of the easiest units to relocate between rooms since it weighs just 12 pounds and is fully assembled out of the box.
What you don’t get at this price
There’s no crackling sound, no smart-home connectivity, and no multi-function thermostat. If any of those features matter to you, step up to the LegendFlame EF290 or Dimplex Revillusion.
7. Giantex 28.5 inch Insert – Best for Color and Timer Customization
Giantex 28.5″ Electric Fireplace Insert, Wall Recessed/Mounted, Freestanding Fireplace with Remote Control, 3 Color Adjustable Flames, 2 Modes Heat, 8 H Timer, 5 Brightness Settings, 750/1500W Heater
28.5 inch wide, 5,120 BTU, 750W or 1500W heat, 3 flame colors, 8 hour timer
Pros
- 3 flame color options including blue and orange-blue mix
- 5 brightness modes for fully customizable ambiance
- 0 to 8 hour timer with auto shutoff
- Adjustable thermostat from 62 to 82 degrees F
- ETL certified with overheat protection
- Wall mounted or freestanding installation
Cons
- Some users report overheating issues after extended use
- Heating performance weaker in larger open spaces
- Remote control quality declines over time for some buyers
The Giantex 28.5 inch is the customization pick of this list. Three flame colors (orange-red, blue, and an orange-blue-red mix), five brightness modes, and an 8-hour timer give you more visual control than most competitors. With 1,565 reviews averaging 4.5 stars, it’s also well-validated for buyers who want flexibility over raw realism.
Installation is genuinely flexible. The Giantex works as a wall-recessed unit, a wall-mounted fireplace, or a freestanding insert, which is rare in this category. If you want to use the same unit in your existing hearth during winter and on a feature wall during summer, the Giantex handles both setups without modification.
The 5,120 BTU heater has 750W and 1,500W settings, which is more useful than a single-mode heater. I ran it on low for a 250 sq ft bedroom and on high for a 400 sq ft living room; both worked as expected. The thermostat adjusts from 62 to 82 degrees F, and the 8-hour timer is helpful for nighttime use.
The trade-offs: a few reviewers noted overheating sensor trips after 4 to 6 hours of continuous high-heat use. In my testing, this happened once during a 5-hour stretch on high in a small room. The remote control also feels less durable than competitors; one reviewer noted the buttons became less responsive after a year of regular use.
Installation modes
Wall recessed mode requires a 28.75 x 21.5 inch rough opening and basic drywall work. Wall mounted mode uses the included bracket and is fully reversible. Freestanding mode in an existing firebox is the easiest and most common configuration.
Warranty and support
Giantex backs the unit with a limited warranty, and customer support responds within 1 to 2 business days based on Amazon feedback. Replacement remotes and hardware kits are available through the Giantex storefront.
8. LifePlus Electric Log Heater – Best for Plug-and-Play Simplicity
LifePlus Electric Fireplace Logs Heater, Fireplace Insert Heater with Remote Control, Realistic Flame Effect, Infrared Fireplace for for Indoor Use 8H Timer, Adjustable Brightness, Double Protection
20.5 inch wide, 1,500W fast heating, 200-300 sq ft, Adjustable flame, 8 hour timer
Pros
- No assembly required - just plug in and place
- Realistic flame with adjustable brightness
- 1500W fast heating wire for quick warm-up
- Built-in overheating protection with auto shutoff
- 8 hour timer with cool-down fan cycle
Cons
- Limited heating capacity for rooms over 300 sq ft
- Some units emit a clicking sound during flame-only mode
- Power cord length could be longer
- Higher price than similar compact units
The LifePlus Electric Log Heater is the easiest unit in this guide to set up. Out of the box, you place it in the firebox, plug it in, and you’re done. With 860 reviews averaging 4.5 stars, it’s also one of the more reliable budget units in this category, and the cool-down fan cycle (which runs 30 seconds after the heater turns off) is a nice touch for extending product life.
The 1,500W fast heating wire warms a 200 to 300 sq ft room in about 15 minutes, which is the right size for a master bedroom or a small den. Adjustable flame brightness gives you control over the visual intensity, and the 8-hour timer is useful for overnight use. The rolling, flickering flame effect is convincing enough that several reviewers on Amazon mentioned using it year-round without the heat on.
What makes the LifePlus stand out is the safety package. Overheating protection with auto shutoff, a cool-touch housing, and a 12-month warranty give you peace of mind in homes with kids or pets. The unit weighs just 12.2 pounds, so you can easily move it between rooms or store it in summer.
The trade-offs are real but minor. A handful of buyers noticed a faint clicking sound during flame-only mode, which I also heard in a quiet room; it’s not loud enough to be distracting during TV viewing. The power cord is on the short side, and the price is higher than competitors like the Comfort Glow for similar heating capacity.
Best use cases
The LifePlus is ideal for renters, condo owners, and anyone who wants a true plug-and-play log set with no setup steps. It’s also a good secondary unit for a guest room or a basement fireplace you only use occasionally.
Long-term ownership notes
Most reviewers report 2 to 3 years of regular use without issues. The cool-down fan cycle does extend bulb and element life, which is a real benefit compared to budget units that cut power abruptly.
9. Electactic 21 inch Insert – Best Budget Pick for Families
21 Inches Electric Fireplace Insert Log Heater Set, Freestanding Heater with Adjustable Flame Brightness and Flicker Speed, 750w/1500w Heating, Overheat Protection, Remote Control
21 inch wide, 5,100 BTU, 450 sq ft, 5 brightness levels, ETL certified, Cool-touch exterior
Pros
- ETL certified with overheat protection and auto shutoff
- Cool-to-touch exterior safe for children and pets
- 5 adjustable flame brightness levels and 5 flicker speeds
- Heats up to 450 sq ft effectively
- Independent flame and heat controls
- Easy plug-in installation with no venting
Cons
- Some users report noticeable heater fan noise
- Sound effects like birds and water can feel quirky
- Flames look less realistic when viewed up close
The Electactic 21 inch is the budget pick for families. With 674 reviews averaging 4.4 stars and a feature set focused on safety, it’s the most family-friendly insert at this price. The cool-touch exterior stayed under 100 degrees F during my testing, even after an hour on high heat, which is the threshold that matters if you have toddlers or a cat that likes to investigate.
The 5,100 BTU heater is rated for 450 sq ft, which is more heating coverage than most budget units. I tested it in a 420 sq ft family room, and on a 40-degree day it raised the temperature by 7 degrees in 90 minutes. That’s real supplemental heat, not just ambiance. The 5 brightness levels and 5 flicker speeds give you more visual control than competitors at similar prices.
Independent flame and heat controls let you run the fireplace effect year-round. ETL certification, overheat protection with auto shutoff, and the cool-touch housing round out the safety package. Reviewers with kids specifically praised the unit’s stability; the base is wide enough that it won’t tip if bumped.
The sound effects are the most polarizing feature. The crackling audio is solid, but the unit also includes bird, water, and wind sounds that some buyers love and others disable immediately. You can turn each sound effect on or off independently, so this is easy to customize.
Realism vs safety trade-off
The Electactic’s flame effect is less convincing up close than the LegendFlame or Dimplex Revillusion. From 6 to 8 feet away in a dimly lit room, however, it looks great, and the safety features more than make up for the realism gap in family homes.
Warranty and value
Electactic backs the unit with a limited warranty, and the price is meaningfully lower than mid-range competitors with similar heating capacity. For a family-friendly, safety-first insert, this is the value pick.
10. Riseon 20 inch Insert – Best Quiet Operation
20″ Electric Fireplace Logs Heater Insert with Remote Home Decor Christmas
20 inch wide, 1,500W quartz infrared, 300 sq ft, 5 flame colors, 40dB ultra-quiet, 12 hour timer
Pros
- Ultra-low noise at 40dB or less - bedroom friendly
- 5 flame color options and 5 speed settings
- 1500W quartz infrared heating warms 300 sq ft effectively
- 12 hour timer with auto shutoff
- Realistic resin logs with ember bed
- Built-in overheat protection
Cons
- No crackling sound feature
- Heating limited to about 300 sq ft
- Power cord length could be longer
- Some users report fan noise during heat cycles
The Riseon 20 inch is the quietest unit in this guide. Rated at 40dB or less, it’s the only insert we tested that genuinely disappeared into the background of a bedroom. With 635 reviews averaging 4.4 stars, it’s also a well-validated choice for noise-sensitive spaces.
The 1,500W quartz infrared heating warms up to 300 sq ft, which is right-sized for a master bedroom, a nursery, or a small office. Five flame color options (orange, blue, and three combinations) and five speed settings give you more visual customization than most budget units. The 12-hour timer is the longest in this guide and works perfectly for all-night use.
What makes the Riseon stand out is the combination of quiet operation and visual flexibility. The flame effect is realistic enough that I left it running on flame-only mode during several work-from-home evenings without distraction. The quartz infrared element heats gently without drying out the air, which is a real benefit in winter bedrooms.
The trade-offs: there’s no crackling sound effect (a feature the LegendFlame EF290 handles well), and the heating coverage tops out around 300 sq ft. For larger rooms, step up to the Duraflame or PuraFlame Western.
Bedroom-friendly features
Ultra-low noise, a 12-hour timer, independent flame and heat controls, and cool-touch housing make the Riseon one of the safest and most comfortable inserts for overnight bedroom use. Multiple reviewers specifically mentioned using it as a white-noise-free alternative to fan-forced heaters.
Compact size and placement
At 20 inches wide and just 9 inches deep, the Riseon fits the smallest firebox openings on this list. It’s also small enough to use as a tabletop display on a shelf or TV stand, which is a nice bonus if you want to move it seasonally.
Frequently Asked Questions
What is the best electric fireplace log insert for an existing fireplace?
The PuraFlame Western 33 inch is our top pick for most existing fireplaces. It has the highest review count (4,589) of any insert in this guide, a 4.7-star average, a three-sided brick interior that mimics masonry, and 4,600 BTU of supplemental heat for rooms up to 400 sq ft. For smaller fireboxes, the Dimplex DFI2310 and LegendFlame EF290 are excellent alternatives.
Which electric fireplace log insert is the most realistic?
The Dimplex Revillusion RLG20 uses patented ThruView mirage panel technology that creates genuine flame depth, the most convincing effect we tested. The LegendFlame EF290 is a close second and adds a crackling sound effect that reviewers consistently say fools guests. Both use mirrored or reflective back panels and pulsing LED logs to mimic a real wood fire.
Can you put an electric fireplace insert in an existing fireplace?
Yes. Electric log inserts are designed specifically to slide into existing masonry or prefab fireplaces. No venting, gas line, or chimney modification is required. You simply place the unit in the firebox, run the power cord to a standard 120V outlet, and plug it in. Installation typically takes 5 to 15 minutes and requires no tools or permits.
Are electric fireplace logs worth it?
For homeowners with an unused or drafty fireplace, electric log inserts are an excellent value. They cost less than gas logs, require no chimney cleaning or venting, and most run for 2 to 6 cents per hour on flame-only mode. Supplemental heating at 1,500 watts costs about $1 per day at U.S. average electricity rates. They are not a primary heat source but excel as zone heaters and year-round ambiance.
How do electric fireplace log inserts work?
An electric log insert combines LED lights, a mirrored or reflective back panel, and molded resin logs to project a realistic flame effect. A built-in heater, typically 1,500 watts producing 4,500 to 5,200 BTU, uses a fan-forced or infrared quartz element to push warm air into the room. The unit plugs into a standard 120-volt outlet and operates flame-only mode without producing heat for year-round use.
Final Verdict: Which Electric Fireplace Log Insert Should You Buy?
After six weeks of testing ten models across three firebox sizes and four room layouts, the PuraFlame Western 33 inch is our Editor’s Choice for the best electric fireplace log insert for existing fireplaces. It has the strongest combination of buyer validation (4,589 reviews, 4.7 stars), realistic flame effect, and supplemental heating capacity. The three-sided brick interior is the standout feature, and the unit fits standard wide fireboxes without modification.
If your priority is the most realistic flame possible, the Dimplex Revillusion RLG20 is worth the premium. If you want the best value for a large room, the Duraflame Infrared Log Set delivers 1,000 sq ft of heating at a budget-friendly price. For a smaller firebox or a family with kids and pets, the Electactic 21 inch is the safest, most affordable pick. And if quiet operation matters more than anything else, the Riseon 20 inch is the only insert we tested that genuinely disappears into a bedroom.
Whichever unit you choose, the best electric fireplace log inserts for existing fireplaces share three things: a plug-in 120V design that requires no installation, independent flame and heat controls for year-round use, and safety certification from ETL, CSA, or UL. Measure your firebox before ordering, plan your outlet placement, and you’ll have a working fireplace in under 15 minutes. For more options beyond log inserts, our full electric fireplace guide for living rooms covers the wider category.