Best 23 Inch Electric Fireplace Inserts for Cabinets: Top 8 Picks (October 2026)
The best 23 inch electric fireplace inserts include the Innoflame 23 Inch Log Insert for TV stands, the Efiretric Adam 23 Inch Insert With Trim Kit for wider surrounds, and the ORALNER 23 Inch Insert for short timer runs.
On this page (9 sections)
- How we compared 23 inch electric fireplace inserts
- Which 23 inch electric fireplace insert suits your cabinet?
- How do you choose a 23 inch electric fireplace insert?
- What should you measure before buying a cabinet insert?
- Does a trim kit change the cabinet opening size?
- How much heat do 23 inch inserts provide?
- How do you set up and care for a cabinet insert?
- What common buying mistakes should you avoid?
- Which 23 inch electric fireplace insert should you choose?
The Innoflame 23 Inch Log Insert is the best 23 inch electric fireplace insert for most cabinets that match its rear-access opening requirements. Choose the Efiretric Adam for a front trim kit or the SIMOE for more flame colors, and measure the full opening and depth before you buy.
A “23 inch” label does not guarantee a 23 in wide cutout. Measure the cabinet opening, front clearance, depth and rear access before choosing a model.
Our picks at a glance
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1
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2
Best for wider surroundsEfiretric Adam 23 Inch Insert With Trim Kit
7.7/10 our score
See it on Amazon -
3
- 4
Check itInnoflame 23 Inch Thermostat Insert
Best for steady temperatures - 5
Check itInnoflame 23 Inch Timer Insert
Best for flame adjustments - 6
Best for lightweight installsCheck it - 7
Best for colorful flamesCheck it - 8
Best for two heat settingsCheck it
How we compared 23 inch electric fireplace inserts
The best 23 inch electric fireplace inserts for cabinets need to fit the opening and the route used to install them. We compared the stated dimensions, installation style, controls, timer ranges and heat settings for each option.
A higher score reflects a closer match to cabinet use, useful controls and clear fit information. The score reflects how well each model’s features and stated dimensions suit this buying decision.
| Product | Best for | Front opening | Depth | Controls | Our score |
|---|---|---|---|---|---|
| Innoflame 23 Inch Log Insert | TV stands | 23 x 19 3/4 in | 5 in | Remote, thermostat, 1–8 hour timer | 8.0 |
| Efiretric Adam 23 Inch Insert With Trim Kit | wider surrounds | Remote and programmable timer | 7.7 | ||
| ORALNER 23 Inch Insert | short timer runs | Remote, thermostat, 30-minute to 6-hour timer | 7.6 | ||
| Innoflame 23 Inch Thermostat Insert | steady temperatures | Remote, thermostat, 1–8 hour timer | 7.5 | ||
| Innoflame 23 Inch Timer Insert | flame adjustments | Remote, thermostat, 1–9 hour timer | 7.4 | ||
| DWVO 23 Inch Insert | lightweight installs | Remote, adjustable flame brightness, 0.5–6 hour timer | 7.4 | ||
| SIMOE 23 Inch Insert | colorful flames | Touch panel and remote | 7.0 | ||
| TORNIVK 23 Inch Insert | two heat settings | Remote, touch panel, timer | 6.8 |
Which 23 inch electric fireplace insert suits your cabinet?
The Innoflame Log Insert ranks first for its defined furniture opening and rear-access approach. The other picks suit different needs, from a wide trim surround to multiple flame colors or two heat levels.
Innoflame 23 Inch Log Insert: Best for TV stands
- Furniture opening: 23 x 19 3/4 in
- Rear opening: at least 24 x 20 3/16 in
- 5000 BTU
- Remote and 1–8 hour timer
Rear access suits furniture installs where the insert slides forward into the cavity. The log set, adjustable flame brightness and thermostat cover the main ambiance and heat controls.
Pros
- Rear-access installation
- Log set and 4 flame brightness levels
- Thermostat range of 64–82°F
Cons
- Requires a 24 x 20 3/16 in minimum rear opening
- Measure the cabinet opening and clearance before buying
The Innoflame 23 Inch Log Insert is the clearest fit for furniture with a 23 x 19 3/4 in front opening. It slides forward from the rear of the cabinet until it sits flush with the furniture frame, so you need access behind the mantel or TV stand during installation.
The minimum rear opening is 24 x 20 3/16 in, and the stated depth is 5 in. Check the full cabinet space and plan a cord route before installing.
The log set and 4 flame brightness levels let you adjust the visual effect. Innoflame gives the thermostat a 64°F to 82°F range and states a 5000 BTU output for rooms up to 400 sq ft.
A remote and control panel operate the insert, and its timer runs from 1 to 8 hours. Choose this model when both the rear opening and front dimensions match your cabinet; skip it if you cannot reach the back of the furniture.
Efiretric Adam 23 Inch Insert With Trim Kit: Best for wider surrounds
- Insert: 23.46 x 17.64 in
- Overall with trim: 28.34 x 20.08 in
- 1500W heater
- Remote and seven-day timer
The front trim covers a wider area than the insert body, so compare both measurements with your cabinet. Its seven-day timer is useful if you want to program a schedule.
Pros
- Front trim kit included
- Seven-day timer
- 1500W heater
Cons
- Overall width with trim is 28.34 in
- Confirm the cutout and front clearance
The Efiretric Adam 23 Inch Insert With Trim Kit suits a cabinet where you want trim to cover a wider area around the insert body. The insert measures 23.46 x 17.64 in, while the overall size with trim is 28.34 x 20.08 in.
That difference matters when the cabinet front is wider than the cutout. Compare the trim dimensions with the furniture face, then compare the insert body with the opening itself.
Its 1500W heater is rated for up to 400 sq ft, and a remote controls its settings. The programmable timer includes a seven-day option, which can suit a regular schedule.
Choose it when the trim will give your cabinet the finished front you want and there is room for the full width. Skip it if the surrounding furniture cannot accommodate a 28.34 in front.
ORALNER 23 Inch Insert: Best for short timer runs
- 24.17 in overall width
- 5.1 in depth
- 5000 BTU
- Remote and 30-minute to 6-hour timer
Its stated width and depth make this an option to compare with a shallow TV stand or cabinet. It has 3 flame brightness levels and a 30-minute to 6-hour timer.
Pros
- 5.1 in depth
- Three flame brightness levels
- Overheat protection
Cons
- Check the cabinet opening against the overall dimensions
- Timer tops out at 6 hours
The ORALNER 23 Inch Insert suits a cabinet where shallow depth and a shorter timer window are priorities. Its dimensions are 24.17 in wide, 5.1 in deep and 17.52 in high, so check all three against the furniture opening and interior.
It has 3 flame brightness settings and a remote with an LED screen. The timer runs from 30 minutes to 6 hours, which gives you a shorter maximum run window than the 8- and 9-hour options elsewhere in this group.
ORALNER states a 5000 BTU heat output and says the insert is intended for spaces up to 225 sq ft. It also has overheat protection and can run as a decorative fireplace without heat.
Choose it if the dimensions fit and a six-hour timer covers your usual use. Skip it if you want a longer timer or a room heater rated for more than its stated coverage.
Innoflame 23 Inch Thermostat Insert: Best for steady temperatures
- Furniture opening: 23 x 19 3/4 in
- Rear-access installation
- 5000 BTU
- Thermostat range of 64–82°F
This rear-access insert pairs a defined furniture-opening size with thermostat control from 64°F to 82°F. It also has a log set and 4 flame brightness levels.
Pros
- Rear-access installation
- Adjustable thermostat
- Remote and 1–8 hour timer
Cons
- Check the required opening and rear clearance
- Overall width is nearly 24 in
The Innoflame 23 Inch Thermostat Insert suits a cabinet owner who wants rear access and adjustable temperature control. It is designed for a 23 x 19 3/4 in furniture opening and slides into place from behind a mantel, TV stand or media console.
Its dimensions are 23 15/16 x 19 7/8 in, with a 5 in depth. Compare those measurements with the intended opening before cutting, especially if the furniture has a frame or lip.
The thermostat adjusts from 64°F to 82°F, and Innoflame states that its 5000 BTU heater suits rooms up to 400 sq ft. The log set, 4 brightness levels, remote and 1–8 hour timer offer control over both the flame and heat schedule.
Choose it when thermostat adjustment matters more than having extra flame modes. If you are deciding between the two rear-access Innoflame options, compare its fit with the Innoflame log insert.
Innoflame 23 Inch Timer Insert: Best for flame adjustments
- Furniture opening: 23 x 19 3/4 in
- Five flame brightness levels
- Three flame speeds
- 1–9 hour timer
Five brightness levels and 3 flame speeds provide more adjustment choices for the flame effect. Its rear-access installation needs a larger minimum rear opening than the other Innoflame cabinet picks.
Pros
- Five flame brightness levels
- Three flame speeds
- Longest timer range in this group
Cons
- Requires at least 24 x 20 3/8 in rear opening
- Measure cabinet depth and clearance before installation
The Innoflame 23 Inch Timer Insert suits buyers who value a longer timer and more flame adjustments. It has 5 flame brightness levels, 3 flame speeds and a timer that runs from 1 to 9 hours.
Its required furniture front opening is 23 x 19 3/4 in, while the minimum rear opening is 24 x 20 3/8 in. That rear opening is larger than the other Innoflame rear-access pick here, so check the back of the cabinet as well as its front.
Innoflame states that its 5000 BTU heater suits rooms up to 400 sq ft, with temperature settings from 64°F to 82°F. The remote controls the insert, and the flame effect can run without heat.
Choose it if a nine-hour timer and adjustable flame speed matter. Skip it if your cabinet cannot provide the listed rear opening or if you only need simple flame controls.
DWVO 23 Inch Insert: Best for lightweight installs
- 11.9 lb weight
- 24.2 in width
- 5.1 in depth
- Remote and 0.5–6 hour timer
At 11.9 lb, this is the lightest insert in the roundup. Its 3 flame brightness levels and remote keep operation simple, and the flame effect can run without heat.
Pros
- Lightest stated weight here
- Remote control
- Can run flame effect without heat
Cons
- Check cabinet dimensions against 24.2 in overall width
- No heat output figure provided
The DWVO 23 Inch Insert suits a cabinet project where a lighter unit is easier to handle. It weighs 11.9 lb, and its dimensions are 24.2 x 5.1 x 17.5 in.
A remote controls its 3 flame brightness levels and 0.5–6 hour timer. DWVO says the flame effect can operate without heat, which can suit a display you want to use throughout the year.
The insert has a 1400W power figure, but no heat output or coverage figure is available. If supplemental heat is a main reason for buying, the picks with stated BTU and coverage figures are easier to compare against your room.
Choose it when low weight, a remote and simple flame controls are your priorities. Skip it if you need a stated room coverage figure or if your opening is less than 24.2 in wide.
SIMOE 23 Inch Insert: Best for colorful flames
- Six flame colors
- Five brightness levels
- 5120 BTU
- 0.5–8 hour timer
Six flame colors and 5 brightness levels give this insert the broadest stated flame palette here. Its recommended cutout is narrower than its 25 in overall width, so plan for the front to overlap the opening.
Pros
- Six flame colors
- Flame effect can run without heat
- Child lock and overheat protection
Cons
- 25 in overall width exceeds a 23 in opening
- Confirm the cabinet depth and cutout before ordering
The SIMOE 23 Inch Insert suits buyers who want several flame color options. It offers 6 flame colors and 5 brightness levels, and its flame effect can run independently from the heater.
SIMOE gives an overall size of 25 x 5 x 18 in and a recommended cutout of 23 x 5.5 x 17 in. The front is wider than the recommended cutout, so check that the cabinet face can accommodate the overlap.
It has a touch panel and remote, plus a child lock and overheat protection. SIMOE states a 5120 BTU heat output, a thermostat range of 60°F to 99°F and a timer from 30 minutes to 8 hours.
SIMOE states heating coverage of 1000 sq ft, but that figure alone does not show how the insert will heat your room. Choose it for its flame variety if the cutout and wider front fit; skip it if your cabinet needs a front no wider than 23 in.
TORNIVK 23 Inch Insert: Best for two heat settings
- 750W and 1500W heat settings
- Multicolor flames
- Child lock
- Remote and touch controls
The 750W and 1500W settings give you two heat levels, and the flame effect has color, brightness and speed options. Its in-wall installation type makes it important to confirm cabinet use and fit before choosing it for furniture.
Pros
- Two heat settings
- Child lock and overheat protection
- 3.2 in stated depth
Cons
- In-wall installation type
- The product description also refers to an 18-inch model
The TORNIVK 23 Inch Insert suits buyers who want a choice between two heat settings: 750W and 1500W. It also has a child lock, overheat protection, a timer, and remote and touch controls.
Its dimensions are 23 x 18.11 x 3.2 in, and its installation type is in-wall. Its description also refers to an 18-inch model, so confirm the dimensions and installation instructions before planning to use it in a cabinet.
The flame effect uses logs and offers color, brightness and speed adjustments. TORNIVK describes a zero-heat mode for flame-only use.
Choose it if two heat levels are useful and the intended installation is confirmed. Skip it for a straightforward TV stand install unless its instructions confirm that your cabinet is suitable.
How do you choose a 23 inch electric fireplace insert?
Choose an insert by matching its body, front trim and installation method to your furniture. Then compare its controls and heating features with how you plan to use the room.
Start with fit, because a model that does not suit the opening cannot be made suitable by extra features. Among these picks, the two rear-access Innoflame models give specific furniture opening requirements, while the Efiretric Adam and SIMOE call attention to the width of the finished front.
Next, decide whether you want heat, flame effects or both. If you mainly want ambiance, prioritize a flame-only mode and brightness or color controls; if you also want supplemental heat, compare stated heat output, thermostat range and timer.
Think about your routine, too. A seven-day timer may suit a repeating schedule, while a shorter shutoff window may be enough if you usually switch the heater off after a few hours.
The electric fireplace insert size guide can help you record the measurements before comparing models. For other buying factors, see what to look for in an electric fireplace.
What should you measure before buying a cabinet insert?
Measure the opening width and height, cabinet depth, space behind the opening and front clearance before choosing an insert. A nominal 23 in model may be wider than the opening it is meant to occupy.
Measure the front opening at more than one point if its edges are not even. Record the narrowest width and height, then compare them with the insert body dimensions, not only the model name.
Measure from the planned front edge to the back panel to find the available depth. Leave a route for the power cord and check the installation instructions for any required clearance before cutting or placing the unit.
For rear-access models, check the back opening and whether you can reach it to slide the insert forward and secure it. For a model with trim, measure the cabinet face as well as the cavity so the full front can sit against it.
Write each measurement down in one place before shopping. Our electric fireplace insert measuring guide covers the size checks to make before committing to an opening.
Does a trim kit change the cabinet opening size?
A trim kit covers more of the cabinet face, but it does not make an insert body fit a cavity that is too small. The Efiretric Adam is 23.46 in wide at the insert and 28.34 in wide with its trim.
Compare the body dimensions with the cavity, then compare the full trim dimensions with the face of the furniture. A larger trim front can help cover a gap around the body, but the cabinet still needs to support the insert and leave access for its cord.
The electric fireplace insert trim kit guide explains how to judge the frame and opening together. If a surface-mounted fireplace might suit your space better, compare electric fireplace inserts and wall mounts.
How much heat do 23 inch inserts provide?
The heat specifications vary, and stated room coverage should be treated as a guide for supplemental heating. Innoflame and ORALNER state 5000 BTU outputs, while the Efiretric Adam has a 1500W heater.
A room’s layout, insulation and drafts affect how warm it feels. A coverage figure does not guarantee an even temperature across the room, so consider where you sit and whether the insert will supplement another heat source.
For occasional comfort near a TV stand, the heat setting and timer may matter more than a large coverage claim. For a primary heat source, compare the insert with other options and review our guide to electric fireplace heating areas.
How do you set up and care for a cabinet insert?
Set up the insert only after confirming the opening dimensions, installation direction and power route. Keep the instructions nearby, and follow the model’s directions for securing it and using its heater.
For a rear-access unit, you’ll need room to approach the cabinet from behind while sliding the insert into place. Make sure the insert sits as intended in the opening before fastening it, and route the cord so it is not pinched by the furniture.
Keep objects and hands away from hot air vents while the heater is running. The DWVO instructions specifically warn against touching the vents or putting objects into them; follow the care and safety guidance for whichever model you choose.
Use the timer to set a shutoff that matches your plans, and check the controls before relying on a schedule. If you use a flame-only mode, confirm that the heater is off rather than assuming the flame setting disables heat automatically.
What common buying mistakes should you avoid?
The most common mistake is treating “23 inch” as the exact width of the insert or its required opening. Check the body, cutout and trim measurements separately.
A second mistake is measuring only the cabinet front. Rear-access models need a suitable opening behind the furniture and enough access to install them; a front that looks right does not confirm that the insert can slide into place.
Avoid choosing by heat coverage alone. The figures vary across models, and room conditions affect comfort, so compare controls and the intended use along with the stated output.
Finally, do not assume all inserts fit all cabinet types. The TORNIVK is described as an in-wall model, while several others are specifically presented for furniture or TV stands; confirm the installation instructions before choosing a unit for a cabinet.
Which 23 inch electric fireplace insert should you choose?
Choose the Innoflame 23 Inch Log Insert if your cabinet matches its front and rear opening requirements and you want a log set with thermostat control. Pick the Efiretric Adam if its front trim suits your furniture, or the SIMOE if you want six flame colors and can accommodate its wider front.
The ORALNER is a sensible fit when its shorter timer and stated dimensions suit the space. The DWVO works for buyers who value a light unit and straightforward controls, while the Innoflame Timer model suits longer shutoff timing and more flame adjustment.
For any 23 inch electric fireplace insert, measure the full cavity and furniture face before buying. If your room needs a different style of fireplace, compare inserts with wall-mounted fireplaces.
Our top 3 picks at a glance
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1
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2
Best for wider surrounds
Efiretric Adam 23 Inch Insert With Trim Kit
7.7/10 our score
See it on Amazon -
3
Frequently asked questions
Will a 23 inch electric fireplace insert fit a 23 inch opening?
Not always. The 23-inch label may refer to a nominal size, while the unit itself can be wider or taller than the cabinet opening.
Measure the opening, the insert’s overall front dimensions and the available depth.
For rear-access models, also check the minimum opening behind the furniture.
How deep should a cabinet be for an electric fireplace insert?
Check the insert’s stated depth and leave room for its cord and any required clearance. Several options here are about 5 in deep, while the TORNIVK is 3.2 in deep.
Measure from the planned front edge to the back panel, and confirm the manufacturer’s installation instructions before cutting.
Do electric fireplace inserts need a trim kit?
A trim kit can cover the gap between an insert and a larger front opening, but it does not make an undersized cavity fit. The Efiretric Adam includes front trim, with an overall width of 28.34 in.
Compare the insert body and trim dimensions with the cabinet face.
See our guide to electric fireplace insert trim kits for fit details.
Can an electric fireplace insert run without heat?
Several picks have a flame-only mode, so you can use the visual effect without turning on the heater. Check the controls for the specific model before you buy.
Our guide to running an electric fireplace without heat explains what to expect from flame-only operation.
How do I measure for a 23 inch electric fireplace insert?
Measure the opening width and height, the cabinet depth and the space behind the opening. Then compare each measurement with the insert body and any trim.
For a step-by-step checklist, use our electric fireplace insert size guide.
