Best Fireplace Insert for a Large Fireplace (2026)
Best fireplace insert for a large fireplace: 5 electric inserts and log sets compared by width, coverage, heat and warranty.
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Top picks at a glance
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- 1
Largest PickZionheat 72 in Insert9.8/10View on Amazon - 2
Quietest PickRiseon 20 in Log Set9.6/10View on Amazon - 3
ETL Log SetElectactic 21 in Log Set9.6/10View on Amazon - 4
Wide LinearElectactic 60 in Linear9.6/10View on Amazon - 5
Duluth Forge Dual Fuel Ventless Gas Fireplace InsertView on Amazon - 6
PuraFlame Western Electric Fireplace Insert with FireView on Amazon - 7
PuraFlame Klaus 33" Electric Fireplace Insert 750/1500W heaterView on Amazon - 8
Giantex 28.5" Electric Fireplace InsertView on Amazon - 9
40'' Electric Fireplace InsertView on Amazon
A large fireplace opening is a grand thing until January, when it becomes a cold black hole in the middle of the house. The masonry looks great and heats nothing. A best fireplace insert for a large fireplace pick fills that opening with electric heat and a flame effect, no chimney work and no gas line, and the wide models turn the firebox from a draft source into the warmest seat in the room. This guide compares five electric inserts and log sets by the numbers their listings publish: width, coverage, heat output, safety features and warranty.
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Quick picks
- Largest Pick Zionheat 72 in Insert: 72 in wide with 900 sq ft coverage, the biggest unit here for a large opening. Check price on Amazon
- Quietest Pick Riseon 20 in Log Set: 40 dB or less with a 1-year warranty, the quietest stated figure. Check price on Amazon
- ETL Log Set Electactic 21 in Log Set: ETL certified with 450 sq ft coverage and 5100 BTU in a 21 in log set. Check price on Amazon
- Wide Linear Electactic 60 in Linear: 60 in frameless linear with 12 flame colors and 12 bed colors. Check price on Amazon
The picks
Zionheat 72 inch Wide Screen Electric
Zionheat 72 in wide-screen electric fireplace, 5100 BTU, 900 sq ft coverage, ETL certified, with 12 flame colors and 1-year warranty.
Pros
- 72 in wide, largest here
- 900 sq ft, highest coverage
- ETL certified with cool-to-touch glass
- 1-year manufacturer warranty
Cons
- 72 in wide needs a big wall or opening
- Heaviest-class unit here
- Only 1-year warranty
- No noise figure is stated
20" Electric Fireplace Logs Heater Insert
Riseon 20 in electric fireplace log set, 1500W quartz infrared, 300 sq ft, 5 flame colors and speeds, 1-year warranty.
Pros
- 40 dB or less, quietest stated
- 1-year manufacturer warranty
- 5 flame colors and 5 speeds
- No installation required, plug and use
Cons
- 20 in wide, smallest here
- 300 sq ft, lowest coverage
- Tabletop unit, not an insert
- No ETL certification stated
21 Inches Electric Fireplace Insert Log Heater
Electactic 21 in electric fireplace log set, 5100 BTU, 450 sq ft, ETL certified, 5 flame brightness settings, overheat protection.
Pros
- ETL certified
- 450 sq ft coverage
- 5100 BTU, 750/1500W modes
- Cool to touch, per the listing
Cons
- 21 in wide, small for a large fireplace
- Limited warranty with no term
- Freestanding, not a true insert
- No timer length stated
Electactic 60 Inch Electric Fireplace Insert
Electactic 60 in ultra-thin linear electric fireplace, 5100 BTU, 400 sq ft, 12 flame and 12 bed colors, remote and touchscreen.
Pros
- 60 in wide linear design
- 12 flame colors plus 12 bed colors
- 45 dB with sleep mode
- 1 to 8 hour timer
Cons
- 400 sq ft coverage is mid-pack
- Limited warranty with no term
- 47.4 lb, heavy to mount
- No ETL certification stated
Valuxhome 36 Inches Fireplace Insert
Valuxhome 36 in fireplace insert, 5100 BTU, 400 sq ft, 5 flame brightness levels, crackling sound speaker, 1 to 9 hour timer.
Pros
- True firebox insert design
- Fire crackling sound speaker
- 1 to 9 hour timer
- Minimum opening dimensions stated
Cons
- 36 in wide, mid-size only
- Limited warranty with no term
- Needs the stated minimum opening
- No noise figure is stated
More options to compare
Duluth Forge Dual Fuel Ventless Gas Fireplace InsertCheck price on Amazon
PuraFlame Western Electric Fireplace Insert with FireCheck price on Amazon
PuraFlame Klaus 33" Electric Fireplace Insert 750/1500W heaterCheck price on Amazon
Giantex 28.5" Electric Fireplace InsertCheck price on Amazon
40'' Electric Fireplace InsertCheck price on Amazon
Compare the picks
| Pick | Width | Coverage | Heat | Warranty |
|---|---|---|---|---|
| Zionheat 72 in | 72 in | 900 sq ft | 5100 BTU, 750/1500W | 1-year warranty |
| Riseon 20 in | 20 in | 300 sq ft | 1500W quartz | 1-year warranty |
| Electactic 21 in log set | 20.53 in | 450 sq ft | 5100 BTU, 750/1500W | Limited (no term) |
| Electactic 60 in | 60 in | 400 sq ft | 5100 BTU, 750/1500W | Limited (no term) |
| Valuxhome 36 in | 35.63 in | 400 sq ft | 5100 BTU, 750/1500W | Limited (no term) |
Specifications are manufacturer rated, collected 21 October 2026. Only two of these listings state a concrete warranty term.
How we scored them
Each pick is scored on performance, build, value, safety and warranty, using only what the listing publishes. The weights are on our How We Pick page.
| Product | Woodlot Score | Perf. /35 | Build /25 | Value /25 | Safety /10 | Warranty /5 |
|---|---|---|---|---|---|---|
| Zionheat 72 in Insert | 9.8 | 33 | 22 | 21 | 10 | 3 |
| Riseon 20 in Log Set | 9.6 | 27 | 20 | 20 | 7 | 3 |
| Electactic 21 in Log Set | 9.6 | 28 | 20 | 21 | 10 | 0 |
| Electactic 60 in Linear | 9.6 | 30 | 21 | 20 | 7 | 0 |
| Valuxhome 36 in Insert | 9.6 | 29 | 21 | 20 | 7 | 0 |
Scores run from 9.2 to 9.8: each product’s point total is placed on that range, so more points always means a higher score.
Buying guide: the best fireplace insert for a large fireplace
Width and fit: measure the opening first
A large fireplace means a wide opening, and the insert must fill it without looking lost. The Zionheat spans 72 in wide with a 3.2 in ultra-thin profile for wall-mount or recessed installation, framed in steel and tempered black glass. The Electactic 60 in model runs 60 in wide and 3.86 in thick, a linear unit for the same modern look with a nearly invisible bezel. The Valuxhome 36 in insert is a true firebox insert: front dimension 35.63 in W x 8.84 in D x 27.5 in H, with a minimum opening of 32.6 in W x 8.6 in D x 26.4 in H stated in the listing. The two log sets are small by design: the Electactic 21 in model is 20.53 in wide and the Riseon 20 in model is 20 in wide, meant to sit inside a firebox or on a hearth, not to fill a large opening. Measure the opening, then pick the width that fills it; a 20 in log set in a 60 in opening looks like a candle in a cave.
Coverage and heat output
Four of the five list 5100 BTU; the Riseon lists 1500W quartz tube infrared heating. Coverage is where they split: the Zionheat claims up to 900 sq ft, the largest here by far. The Electactic 21 in log set claims 450 sq ft. The Electactic 60 in and the Valuxhome 36 in each claim 400 sq ft. The Riseon claims 300 sq ft. All except the Riseon run two heat modes, 750W and 1500W, so you can dial down in mild weather. For a large room with a large fireplace, the 900 sq ft Zionheat is the honest match; the 300 sq ft Riseon suits a bedroom or office hearth. None of the listings states a duty cycle, so treat the coverage figures as the listing’s claim, not a guarantee.
Insert, linear unit or log set
Three shapes appear. The Zionheat 72 in and the Electactic 60 in are linear wall-mount or recessed units: wide, thin, modern, made to be seen, with the Zionheat listing including all necessary hardware and step-by-step instructions. The Valuxhome 36 in is a classic insert that mounts into an existing firebox opening with brackets and screws, per the listing. The Electactic 21 in and the Riseon 20 in are log sets with flame screens and ember beds: the Electactic lists resin logs with an ember bed, the Riseon resin logs with an infrared quartz heater. Log sets are the easy install: plug in and go, with the Riseon listing stating no installation required. Inserts take brackets and measuring. Pick the shape that matches the fireplace: linear for a modern wide opening, classic insert for a masonry firebox, log set for a quick hearth upgrade.
Flame effects and controls
Nobody buys an electric insert for heat alone; the flame is the point. The Zionheat and the Electactic 60 in each offer 12 flame colors, with the Electactic adding 12 bed colors and adjustable brightness and speed. The Riseon offers 5 flame colors and 5 flame speeds. The Electactic 21 in log set offers 5 adjustable flame brightness and flicker speed settings. The Valuxhome offers 5 flame brightness levels, 3 top light colors and a log speaker that plays a fire crackling sound, which the listing says you can turn on or off. All five include a remote control; the Zionheat and Electactic 60 in also have panel or touchscreen controls. Timers: 1 to 8 hours on the Electactic 60 in, 1 to 9 hours on the Valuxhome, 12 timers on the Riseon, and an automatic shut-off timer on the Zionheat.
Noise
Two listings state a noise figure. The Electactic 60 in runs at 45 dB, which the listing calls whisper-quiet, with a sleep mode. The Riseon states 40 dB or less, the quietest figure here, which the listing positions as bedroom-friendly. The other three state no noise figure, so the comparison leaves them unclear rather than calling a winner.
Safety features
Every listing states overheat protection. The Zionheat and the Electactic 21 in are ETL certified, and the Zionheat adds cool-to-touch glass and an automatic shut-off timer. The Electactic 21 in adds an auto shutoff feature and states the unit stays cool to the touch, safe for small children and pets per the listing. The Riseon lists overheat protection with its timer. The Valuxhome lists overheat protection that cuts off the device when superheated. All five are vent free and indoor rated. For a house with kids or pets, the ETL-certified picks with cool-to-touch surfaces are the safer bet.
Warranty
Only two listings state a concrete term: the Zionheat and the Riseon each carry a 1-year manufacturer warranty, and the Zionheat listing says it protects your investment. The Electactic 60 in, the Valuxhome 36 in and the Electactic 21 in each list only Limited, which counts as no stated term. A 1-year warranty on an electric heater is modest but real, and it is one of only two stated terms in this set; no stated term means you buy on the build.
Install stoves and inserts to the manufacturer's instructions and your local code, usually by a certified installer with a permit and inspection. Keep the listed clearances to combustibles, run working smoke and carbon monoxide detectors, have the chimney inspected and cleaned every year to prevent creosote fires, burn only seasoned wood, and check local burn rules. See EPA Burn Wise, NFPA heating safety, CPSC carbon monoxide guidance and the Chimney Safety Institute of America (CSIA). Read our Safety Disclaimer.
Frequently Asked Questions
What size insert fits a large fireplace?
Measure the opening, then match the width. The Zionheat at 72 in wide and the Electactic at 60 in wide suit large modern openings; the Valuxhome 36 in insert states a minimum opening of 32.6 in W x 8.6 in D x 26.4 in H.
How much room will these heat?
Per the listings: 900 sq ft for the Zionheat, 450 sq ft for the Electactic 21 in log set, 400 sq ft for the Electactic 60 in and the Valuxhome, and 300 sq ft for the Riseon.
Do these need venting or a gas line?
No. All five are electric, vent free and indoor rated. The Zionheat and Electactic 60 in mount on the wall or recessed; the Valuxhome mounts into an existing firebox; the log sets plug in and sit on the hearth.
Which ones are ETL certified?
The Zionheat 72 in and the Electactic 21 in log set state ETL certification. The others state overheat protection but no certification.
Can the flame run without heat?
Yes on the ones that state it: the Riseon runs the flame with or without heat for year-round use, the Electactic 21 in has independent flame and heat control, and the Valuxhome shows the flame with or without heating.
Related: the best fireplace screen for a wide hearth, the best fireplace poker for a brick fireplace and the best kindling for a fireplace.
