Best Fireplace Inserts (2026): 7 Wood and Electric Picks

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The best fireplace insert turns an existing fireplace from a drafty decoration into something useful, but the right type depends on what is already in your wall. A wood-burning insert is a sealed stove that slides into a masonry firebox and vents through a new liner up the chimney; it needs EPA certification, proper clearances, a professional install and carbon monoxide alarms. An electric insert or log set needs only an outlet, gives a convincing flame and modest supplemental heat, and leaves the chimney unused. This roundup compares both on what the listings state: certification, firebox fit and opening size, venting or electrical needs, heat output and controls. A buying guide follows on chimney liners, factory-built fireplaces, damper and gas-line safety, and when to call a chimney professional.

Part of our Heating, Cooling & Ventilation guide — start there for the full picture →

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How we compared: we compared 17 current Amazon listings returned by a fireplace insert search: one wood-burning insert, nine electric log sets and firebox or furniture inserts, and seven recessed wall-panel fireplaces that are sold as inserts but are really in-wall units. We judged each on what its listing states: certification, dimensions or required opening, heat output and stated area, electrical draw, venting, controls and warranty. We did not lab-test, install or burn any of them. Prices and availability change, so check the current listing before buying.

Quick picks: the best fireplace inserts by firebox and goal

Product	Best for	Key features	Price	Buy
US Stove US1800E	Best wood-burning insert	Meets EPA limits on cordwood 69000 BTU, 150 CFM blower 6-inch liner, masonry only	$1,499.99as of Oct 24, 2026 10:12 am GMT+0000	Buy now →Check current price
Touchstone Forte 40	Best electric insert for an old opening	Fits existing fireplace openings Plug-in or hardwire ready 12 amp max draw	$549.00as of Oct 24, 2026 9:51 am GMT+0000	Buy now →Check current price
Duraflame DFI041ARU	Best log set with crackle sound	Infrared heater Crackling sound effect No vents or gas lines	$169.99as of Oct 24, 2026 10:12 am GMT+0000	Buy now →Check current price
LegendFlame EF290	Best CSA-certified log set	CSA certified 750W or 1500W Fits small and large openings	$239.00as of Oct 24, 2026 10:12 am GMT+0000	Buy now →Check current price
PuraFlame EF512A	Best log set for wide fireboxes	27 inches wide 60 to 82 F thermostat 0.5 to 9 hour timer	$279.99as of Oct 24, 2026 10:12 am GMT+0000	Buy now →Check current price
Innoflame NT26V09L-MT	Best insert for mantels and TV stands	Exact 26-3/16 x 17-3/16 opening CSA and UL certified Cool-touch glass	$129.99as of Oct 24, 2026 10:12 am GMT+0000	Buy now →Check current price
Giantex GT51075-HW	Best ETL insert for cabinets or walls	ETL certified 750W or 1500W stated in BTU 62 to 82 F, 8-hour timer	$159.99as of Oct 24, 2026 10:12 am GMT+0000	Buy now →Check current price

Prices are Amazon’s listed prices as of the time shown and change often; check Amazon for today’s price. As an Amazon Associate we earn from qualifying purchases.

The seven picks, compared listing by listing

1. US Stove US1800E — Best Wood-Burning Fireplace Insert

Best wood-burning insert

Why we like it

• Only EPA-compliant wood insert on the shelf
• Names the liner size: 6-inch
• Clear about fit: residential masonry fireplaces only
• Secondary burn without a catalyst
• Large 31 x 44 in surround covers the old opening

US Stove US1800E — EPA cordwood, 69,000 BTU, 1,200 sq ft, 1.2 cu ft, 18″ logs, 150 CFM blower, 6″ liner, masonry only, 300 lb

The Only Insert on the Shelf That Actually Heats Like a Stove

Sixteen of the 17 listings are electric. The US1800E is the only fuel-burning insert, and it is a different class of appliance: a sealed steel firebox with a cast iron door that slides into a masonry fireplace and turns it into a wood stove. Its 69,000 BTU maximum is more than ten times the roughly 5,100 BTU an electric insert on a standard outlet can produce.

It says it meets EPA guidelines when burning cordwood, which the EPA calls the better real-world test. The EPA notes that fireplace inserts perform like freestanding stoves but are installed in an existing firebox, and that a certified installer will make sure the flue liner in a masonry chimney is installed correctly. This listing names that liner, 6 inches, and states it is for masonry fireplaces only.

That limit is important. The EPA says a factory-built, or zero-clearance, fireplace must only receive an insert specifically designed and tested for that unit, so the US1800E is not for the metal fireboxes common in many 1980s and later Front Range homes. The blower needs electricity, and the listing does not state clearances or a warranty.

Check US Stove US1800E price on Amazon

2. Touchstone Forte 40 — Best Electric Insert for an Old Fireplace Opening

Best electric for an old opening

Why we like it

• Listing says it fits existing fireplace openings
• Advises securing unused gas lines and vents
• Plug-in or hardwire ready
• States its maximum draw: 12 amps

Touchstone Forte 40 — recessed electric, fits old openings, plug-in or hardwire, 1500W, 12 A max, 8″ top clearance, Wi-Fi

The Only Electric Listing That Addresses Old Gas Lines and Vents

Several electric listings say they fit into an existing fireplace. The Touchstone Forte is the only one that also tells you what to do about the fireplace you are covering: consult a licensed professional to make sure unused gas lines and vents are secured properly. That is the right first step when converting a gas or wood fireplace, and none of the log-set listings mention it.

It is also the only electric listing on this shelf that is hardwire ready, and it states its maximum current, 12 amps. In a converted firebox there is rarely an outlet inside the opening, so the option to hardwire a dedicated circuit is useful.

The listing does not give a thermostat range, certification mark or exact rough-opening dimensions in the text, so measure the firebox width, height and depth before ordering.

Check Touchstone Forte 40 price on Amazon

3. Duraflame DFI041ARU — Best Electric Log Set With Crackling Sound

Best log set with crackle sound

Why we like it

• Sits in an existing hearth, just plug in
• Infrared heater with thermostat
• Adjustable crackling sound and flame speed
• No vents, gas lines or construction

Duraflame DFI041ARU-2 — plug-in infrared log set, LED flames, crackle sound, thermostat, remote + timer, 12.5 lb, 1-yr warranty

The Only Log Set With Remote-Adjustable Crackle Volume

Three electric log sets on the shelf offer a crackling sound effect: this Duraflame, the LegendFlame in pick 4 and the PuraFlame in pick 5. The Duraflame is the only one whose listing says the crackle volume is adjustable from the remote. For a fireplace that is purely about atmosphere, sound adds more realism than another flame color.

The install is as simple as it gets: set it in the firebox and plug it in. Its 20.5-inch width fits most standard masonry fireboxes. If the fireplace has no outlet nearby, the cord will cross the hearth, so plan a safe route or have an outlet added.

Like Duraflame’s stove model, the listing claims heat for up to 1,000 sq ft without stating wattage. Every log set here that does state output tops out at 1,400 to 1,500 watts, so expect room-corner warmth, not whole-house heat. The EPA notes that decorative electric logs are not designed to be a significant source of heat. Its sibling, the DFI030ARU, drops the crackle.

Check Duraflame DFI041ARU price on Amazon

4. LegendFlame EF290 — Best CSA-Certified Electric Log Set

Best CSA-certified log set

Why we like it

• CSA certification named
• Honest: says it is not a primary heat source
• States plug and circuit: polarized, 15 A
• Fits small and large openings or a cabinet

LegendFlame EF290 — 23″ log set, 750/1500W, 400 sq ft supplemental, 120V polarized plug, CSA certified, 1-yr warranty

A Named Safety Mark and a Realistic Heat Claim

Eight of the electric listings on this shelf name a testing mark: ETL, CSA or UL. The LegendFlame is one of three that name CSA. A named mark matters for an appliance that sits inside a firebox where the rating label is hard to see later.

It is also one of the most honest heat claims on the shelf: 400 sq ft of supplemental warmth, with a plain statement that the unit is not a primary heat source. That aligns with the EPA’s description of decorative logs. The listing also states the electrical expectation, a polarized 120V plug on a 15-amp circuit.

The listing does not mention a thermostat, timer or overheat protection in its bullets, which other log sets do. Its 20-inch height needs a firebox at least that tall.

Check LegendFlame EF290 price on Amazon

5. PuraFlame EF512A — Best Electric Log Set for Wide Fireboxes

Best log set for wide fireboxes

Why we like it

• Widest log set on the shelf at 27 inches
• Thermostat from 60 to 82 F with LED display
• 0.5 to 9 hour timer
• Says plainly: not a primary heat source

PuraFlame EF512A — 27″ log set, 750/1500W, 60–82 F, 0.5–9 hr timer, LED display, crackle, 18.3 lb, 1-yr warranty

The Widest Log Set for Large Masonry Fireplaces

A narrow log set lost in a wide firebox looks like what it is. At 27 inches, the PuraFlame is the widest of the freestanding log sets on the shelf, which range from about 20.5 to 27 inches. It suits the broad brick fireplaces common in older Front Range ranches and two-stories.

It has among the most complete controls of the log sets: a thermostat with an LED readout, a 0.5- to 9-hour timer and a crackle effect. The timer matters because the USFA advises putting the fire out, or in this case switching the heater off, before you go to sleep or leave home.

The listing names no certification mark or overheat cutoff, and at 18.3 lb it is the heaviest log set with a stated weight.

Check PuraFlame EF512A price on Amazon

6. Innoflame NT26V09L-MT — Best Electric Insert for Mantels and TV Stands

Best for mantels and TV stands

Why we like it

• States the exact opening it fits
• CSA and UL certification named
• Front glass stays cool to the touch
• 64 to 82 F thermostat, 1 to 8 hour timer

Innoflame NT26V09L-MT — rear-mount furniture insert, 26 3/16 x 17 3/16 opening, 1400W, 64–82 F, CSA/UL, cool-touch glass

The Only Insert Listing That Gives an Exact Required Opening

Fit is the most common reason inserts get returned. The Innoflame is the only firebox-style insert on the shelf that states the exact opening it requires, 26 3/16 by 17 3/16 inches, and explains that it mounts from the rear of the furniture. That makes it the natural choice for a fireplace mantel surround, TV console or built-in cabinet designed around a standard insert cavity.

It also names two marks, CSA and UL, and pairs an overheat cutoff with a cool-touch front glass, which matters in a TV stand at child height. Its 1,400 watts is slightly below the 1,500-watt units, a sensible choice for furniture where heat buildup inside the cabinet is a concern.

This is not designed to sit inside a masonry firebox, and the listing does not mention clearance above the unit; check the manual for distance to a TV.

Check Innoflame 26-inch insert price on Amazon

7. Giantex GT51075-HW — Best ETL-Certified Insert for Cabinets or Walls

Best ETL insert for cabinets

Why we like it

• ETL certification and overheat cutoff named
• States BTU at both settings
• Recess, wall-mount or freestanding
• 62 to 82 F thermostat, 0 to 8 hour timer

Giantex GT51075-HW — 28.5″ insert, 750/1500W (2,559/5,118 BTU), 62–82 F, 8-hr timer, ETL, overheat cutoff, 25.7 lb

An ETL-Listed Box Insert That Works Three Ways

Four electric listings on this shelf name ETL, and the Giantex is the one designed for the widest range of placements: inside a cabinet, recessed into a wall or freestanding. It is also one of few listings that convert both heat settings into BTU, which makes comparison with other heaters straightforward.

At 28.5 inches wide and 6 inches deep it fits many prebuilt fireplace mantel cabinets. The included remote battery is a small thing other listings skip.

It offers only three flame colors and does not state the opening size, so measure carefully, and the listing gives no warranty term. Like every electric pick, its heat is supplemental.

Check Giantex 28.5-inch insert price on Amazon

Wood vs electric vs gas inserts

An insert is defined by what it sits in, not what it burns. The three types solve different problems:

• Wood inserts deliver real heat and work without power for the burn itself, but need an EPA-certified unit, a full-length stainless liner, clearances to the mantel and floor, annual sweeping and CO alarms.
• Electric inserts and log sets need only an outlet and give flame plus up to about 1,500 watts of supplemental heat. They leave the chimney idle, so the damper should be closed or sealed.
• Gas inserts were not on this shelf. Direct-vent gas inserts use a sealed combustion chamber and a coaxial liner; see our guide to the direct-vent gas fireplace. The EPA says it does not support unvented gas logs because of indoor air quality concerns, and our ventless gas fireplace guide explains why.

The EPA describes ordinary fireplaces as typically very inefficient heaters, which is the main argument for an insert of any kind. Our full fireplace insert guide compares running costs.

Masonry vs factory-built fireplaces

Before shopping, find out which kind of fireplace you have. A masonry fireplace has a brick or stone firebox and a masonry chimney, common in Front Range homes built before the 1980s. A factory-built, or zero-clearance, fireplace is a metal firebox with a metal chimney pipe, usually behind a framed chase; look for a metal label on the firebox side or behind the screen.

The distinction is critical for wood inserts. The EPA says factory-built fireplaces must only receive an insert specifically designed and tested for that unit. The US1800E in this roundup is for masonry fireplaces only. Electric log sets and inserts can go in either type because they do not use the chimney, but the damper should still be closed.

Liners, clearances and installation for wood inserts

A wood insert vents through a stainless steel liner that runs from the insert’s flue collar to the top of the chimney, sized to the insert, which is 6 inches for the US1800E. The EPA’s installation guidance lists what a professional checks: clearances between the appliance and venting system and combustible materials, protection of combustible floors, and proper assembly of appliance and venting components. Mantels and wood trim above a firebox are often too close for an insert that projects heat forward, so check the manual’s mantel clearance before buying.

The EPA recommends checking installer credentials with the Chimney Safety Institute of America or the National Fireplace Institute. A blower, like the US1800E’s 150 CFM unit, pushes heat into the room; for blower types and retrofits, see our guide to the fireplace blower.

Safety: CO alarms, ashes and annual sweeping

Any wood-burning insert can leak carbon monoxide through a damaged liner, a failed door gasket or a blocked cap. The CPSC recommends CO alarms that meet UL 2034, battery-operated or with battery backup, on every level and outside sleeping areas, and annual inspection of chimneys and flues for blockages, corrosion and disconnections. The CDC adds that chimneys should be checked or cleaned every year because debris can block them and let CO build up inside.

The USFA’s fireplace guidance covers daily habits: keep anything that can burn at least three feet away, never burn paper, put the fire out before sleeping or leaving, and put ashes in a lidded metal container outside at least 10 feet from the home. For open fireplaces, keep a glass or metal screen in place, and keep switches and remotes away from children. Glass doors on an open fireplace are a separate upgrade; see our guide to fireplace doors.

Front Range fireplaces: what to check first

Many older Front Range homes have masonry fireplaces with clay tile flues that have cracked over decades of freeze-thaw cycles, and many newer homes have factory-built units with metal chimneys. In either case, have a chimney professional inspect the flue before deciding. A cracked clay liner rules out burning wood until it is relined, which is exactly when a wood insert with a new stainless liner makes sense. Several Front Range communities also restrict wood burning on high-pollution winter days, which tilts some households toward electric or gas.

When to call a chimney professional or inspector

Hire a CSIA-certified sweep or NFI-certified installer for any wood insert, any liner and any conversion of a gas fireplace. Have a licensed gas professional cap unused gas lines, as the Touchstone listing advises. If you smell smoke, the EPA advises shutting down the appliance, opening a window, checking that the flue is open and calling a professional.

Buying a home with a fireplace? A home inspector notes visible firebox and chimney condition and will often recommend a Level 2 chimney inspection when a fireplace is part of the deal. Our overview of heating and cooling inspection topics explains what gets reviewed.

References

• Choosing Wood-Burning Appliances — U.S. Environmental Protection Agency
• EPA Certified Wood Stoves — U.S. Environmental Protection Agency
• Wood-Burning Installation and Maintenance — U.S. Environmental Protection Agency
• Fireplace and Wood Stove Safety card (PDF) — U.S. Fire Administration
• Carbon Monoxide Questions and Answers — U.S. Consumer Product Safety Commission
• Carbon Monoxide Poisoning Basics — Centers for Disease Control and Prevention

Thinking about an insert for a Front Range fireplace, or buying a home where the chimney’s history is a mystery? Connect with a vetted local inspector through our contact page.