9 Best Natural Gas Fireplace Inserts (November 2026)
The best natural gas fireplace inserts include the PuraFlame Western Electric Fireplace Insert with Fire for a plug-in insert, the Barton 10-Piece Ceramic Gas Fireplace Logs for a vented gas log display, and the duraflame® Electric Log Set for an existing hearth.
On this page (7 sections)
- Which natural gas fireplace inserts made this roundup?
- The best natural gas fireplace insert options
- How do you choose an insert for an existing natural gas supply?
- Are natural gas logs and inserts interchangeable?
- When is an electric insert a sensible alternative?
- What should you check before installing a gas insert?
- Which natural gas fireplace insert should you choose?
The best natural gas fireplace insert is a complete gas appliance sized and vented for your fireplace opening. The products in this roundup include compatible gas log sets and a replacement pilot assembly, alongside electric alternatives for readers who want to use an existing hearth without connecting natural gas.
Natural gas availability narrows the search, but it doesn't settle fit or venting. If your home uses propane, compare propane fireplace inserts.
Decide whether you need a full insert, replacement logs for an approved appliance, a repair part, or an electric unit.
For older masonry openings, compare the fit questions in our guide to Best Gas Fireplace Insert For Old Fireplaces. If venting is your main concern, read about best vented gas fireplace inserts before choosing a model.
Our picks at a glance
-
1
Best for a plug-in insertPuraFlame Western Electric Fireplace Insert with Fire
9.7/10 our score
See it on Amazon -
2
Best for a vented gas log displayBarton 10-Piece Ceramic Gas Fireplace Logs
9.6/10 our score
See it on Amazon -
3
- 4
Check itXbeauty 50 inch Electric Fireplace Recessed
Best for a wide electric feature - 5
Check itLamudo 69L17 Pilot Assembly for Natural Gas
Best for a compatible fireplace repair - 6
Check itPuraFlame Klaus 33" Electric Fireplace Insert
Best for a traditional electric look - 7
Best for a birch-log lookCheck it - 8
Check itPuraFlame 27" Free Standing Electric Fireplace Log
Best for adjustable electric flames - 9
Check itLegendFlame 25" W Free Standing Electric Fireplace
Best for a compact electric log set
Which natural gas fireplace inserts made this roundup?
The closest gas-related matches here are decorative gas log sets and a pilot assembly for named compatible appliances. The remaining picks are electric units, so they suit readers willing to consider a plug-in alternative rather than a natural gas insert.
We compared each option by how directly it serves an existing fireplace, what type of item it is, and the fit or compatibility details available. Our score weighs specs, features and buyer feedback against what you're shopping for.
| Product | Best for | Type | Overall size | Power | Our score |
|---|---|---|---|---|---|
| PuraFlame Western Electric Fireplace Insert with Fire | a plug-in insert | Electric insert | 35 1/16 x 26 31/32 x 8 25/32 in | 120 V plug-in; not hard-wired | 9.7 |
| Barton 10-Piece Ceramic Gas Fireplace Logs | a vented gas log display | Decorative ceramic gas logs | 9.6 | ||
| duraflame® Electric Log Set | an existing hearth | Electric log set | 9.6 | ||
| Xbeauty 50 inch Electric Fireplace Recessed | a wide electric feature | Electric wall-mounted or recessed fireplace | 50 x 18.11 x 3.86 in | 120 V plug-in | 9.6 |
| Lamudo 69L17 Pilot Assembly for Natural Gas | a compatible fireplace repair | Natural gas pilot assembly | 9.5 | ||
| PuraFlame Klaus 33" Electric Fireplace Insert | a traditional electric look | Electric insert | 35.04 x 26.96 x 8.78 in | 120 V plug-in; not hard-wired | 9.4 |
| Uniflasy Gas Fireplace Logs | a birch-log look | Decorative ceramic fiber gas logs | 9.3 | ||
| PuraFlame 27" Free Standing Electric Fireplace Log | adjustable electric flames | Freestanding electric log set | 120 V plug-in | 8.9 | |
| LegendFlame 25" W Free Standing Electric Fireplace | a compact electric log set | Freestanding electric log set | 120 V plug-in or 15 A circuit | 8.5 |
The best natural gas fireplace insert options
These picks address different fireplace needs, so start by identifying whether you need an appliance, logs, a repair part or an electric alternative. If remote operation is a priority, compare gas fireplace inserts with remotes.
Always confirm opening dimensions, fuel type and the appliance's approved venting before making a choice.
PuraFlame Western Electric Fireplace Insert with Fire: Best for a plug-in insert
- 750 W or 1500 W heat
- Flame settings work with or without heat
- Remote control
- Supplemental heat for up to 400 sq ft
A plug-in alternative for an existing opening where a gas appliance isn't required. It provides adjustable flames and supplemental heat, but needs an outlet and is not a main heat source.
Pros
- Flame effect can run without heat
- Remote control included
- Flat bottom can sit on the floor
Cons
- Requires a 120 V outlet
- Not a main heat source
- Opening must fit the unit
The PuraFlame Western is an electric insert for an existing opening where a plug-in unit is acceptable. Its flame effect has 3 intensity settings and can run without heat, so you can use the display year-round.
The unit measures 35 1/16 in wide, 26 31/32 in high and 8 25/32 in deep overall. PuraFlame says it provides supplemental heat for up to 400 sq ft and includes a remote control.
This model needs a 120 V outlet and cannot be hard-wired. PuraFlame describes it as supplemental heat, not a main heat source, and recommends contacting the company if you aren't sure it fits your opening.
Choose it when electric operation works for your hearth and you want an insert with adjustable flames. If you specifically need a gas-burning appliance, this isn't a substitute for one.
Barton 10-Piece Ceramic Gas Fireplace Logs: Best for a vented gas log display
- 10 ceramic logs
- Designed for compatible vented gas fireplaces
- Stackable arrangement
- Also suited to compatible outdoor fire pits
A decorative log set for a compatible vented gas fireplace or insert. Check the appliance instructions for approved log sets and placement before use.
Pros
- 10 individual logs can be arranged
- Ceramic construction
- Designed for compatible vented gas fireplaces
Cons
- Not a complete fireplace insert
- Compatibility and placement need checking
Barton’s 10-piece ceramic set is a decorative option for a compatible vented gas fireplace or insert. Individual pieces can be arranged to suit the layout, but the appliance manual should determine whether the set is approved and how it must be placed.
The set also suits compatible outdoor fire pits, giving it more than one possible use. Ceramic construction is designed for repeated exposure to fireplace heat, according to Barton.
This is a log set rather than a complete insert or burner. Check the fireplace make and model, fuel type and log-placement instructions before use.
Pick Barton if the appliance is compatible and the main goal is a traditional stacked-log appearance. For help deciding between a complete unit and a log set, see gas fireplace insert vs gas logs.
duraflame® Electric Log Set: Best for an existing hearth
- Electric log set for existing fireplaces
- Flames and heat have independent controls
- Crackling sound effect
- Remote controls flame speed, brightness, sound and timer
A plug-in log set for a hearth where you want flame effects and supplemental heat without running a gas line. It comes fully assembled and needs an outlet.
Pros
- No gas line or vent installation
- Flames can run without heat
- Remote control included
Cons
- Requires an existing fireplace and outlet
- Electric heat rather than natural gas
The duraflame® Electric Log Set fits an existing fireplace where you want an electric flame effect and supplemental heat. It comes fully assembled and needs an outlet, with no gas line or vent installation.
Flame and heat controls work independently, and the remote adjusts flame speed, brightness, sound and timer. The set also has a crackling sound effect, which you can control separately.
Its stated dimensions are 20.7 x 12.6 x 8.66 in. Since this uses electricity instead of natural gas, choose it only if that change in fuel is acceptable for your room and setup.
Xbeauty 50 inch Electric Fireplace Recessed: Best for a wide electric feature
- Wall-mounted or recessed installation
- Flame effect works with or without heat
- Remote and touch controls
- Supplemental heat for up to 400 sq ft
A wide electric option for a wall project rather than a gas insert. Its flame settings can run without heat, and the maker gives dimensions for both the unit and recess box.
Pros
- Wall-mounted or recessed setup
- Multiple flame and hearth color modes
- Timer and overheat protection
Cons
- Requires a 120 V outlet
- Not a natural gas appliance
- Recess dimensions need checking
Xbeauty is a wide electric fireplace designed for wall mounting or recessed installation. Its stated overall size is 50 x 18.11 x 3.86 in, with a recess box size of 30.35 x 16.54 x 3.86 in.
The flame effect can run without heat, and settings are controlled by the touch panel or remote. Xbeauty describes the heater as supplemental heat for up to 400 sq ft.
This is a wall feature rather than a gas insert for a traditional fireplace opening. Confirm the wall framing, recess dimensions and electrical setup before planning installation.
Lamudo 69L17 Pilot Assembly for Natural Gas: Best for a compatible fireplace repair
- Replacement pilot assembly for specified natural gas appliances
- Includes pilot tube, thermocouple, thermopile and ignitor
- Compatibility covers named Lennox, IHP, Superior and Astria models
A replacement part for certain natural gas fireplaces and inserts, not a complete insert. Match the appliance model and existing part number, and use a qualified fireplace technician if you lack the needed installation experience.
Pros
- Names compatible appliance brands and models
- Includes several pilot assembly components
- Can replace specified part numbers
Cons
- Fits only compatible appliances
- Installation requires tools and experience
The Lamudo 69L17 is a replacement pilot assembly for certain natural gas fireplaces and inserts, not a complete heater. Its stated compatible brands include Lennox, IHP, Superior and Astria, with a range of specific models and replacement part numbers.
The assembly includes a pilot tube, thermocouple, thermopile and ignitor. Match the appliance model and the part number on the existing component before ordering, since a shared brand name alone doesn't confirm compatibility.
Installation calls for tools, experience and electrical skills. If you don't have that experience, Lamudo recommends a qualified electrician or fireplace technician.
PuraFlame Klaus 33" Electric Fireplace Insert: Best for a traditional electric look
- Three flame settings with variable intensity and brightness
- Flames work with or without heat
- Remote control
- Supplemental heat for up to 400 sq ft
A traditional-style electric insert with an interior brick wall, glass door and mesh screen. It offers supplemental heat, but does not use a natural gas connection.
Pros
- Flame effect can run without heat
- Remote control included
- Flat bottom can sit on the floor
Cons
- Requires a 120 V outlet
- Not a main heat source
- Opening must fit the unit
The PuraFlame Klaus is an electric insert with a traditional look, including a three-sided interior brick wall, glass door and mesh screen. Its flame settings can run with or without heat.
It measures 35.04 x 26.96 x 8.78 in overall and needs a 120 V outlet. PuraFlame describes the heat as supplemental for up to 400 sq ft, not a main heat source.
Choose Klaus when electric operation is suitable and you want a framed insert appearance. Measure your opening and plan for the power connection before ordering.
Uniflasy Gas Fireplace Logs: Best for a birch-log look
- Six ceramic fiber birch-style logs
- About 15.7–16.1 in long
- Intended for compatible gas fireplaces and fire pits
A six-piece birch-look set for a compatible gas fireplace or fire pit. Appliance instructions should guide log placement and whether this decorative set is suitable.
Pros
- Birch-style appearance
- Six logs in the set
- Can complement compatible gas log arrangements
Cons
- Not a complete fireplace insert
- Compatibility and placement need checking
Uniflasy’s six ceramic fiber logs have a white birch look and are about 15.7–16.1 in long. They are intended for gas fireplaces and fire pits, but the appliance maker’s instructions should decide whether this set is suitable for your specific unit.
The maker notes that sooting may turn the logs black and advises placing them correctly to support complete gas combustion. That makes correct setup a practical part of choosing this decorative set.
This is not a burner or full insert. Pick it for compatible equipment when a birch-style look is the priority, and confirm fuel and placement first.
PuraFlame 27" Free Standing Electric Fireplace Log: Best for adjustable electric flames
- Six flame colors and five brightness levels
- Crackling sound
- 750 W or 1500 W heat
- Thermostat and timer
A freestanding electric log set for an existing opening, with adjustable flame color and a crackling sound. Its maker describes the heat as supplemental, not a primary source.
Pros
- Flames can run without heat
- Thermostat and timer
- Remote control
Cons
- Requires a 120 V outlet
- Not a natural gas appliance
- Not a primary heat source
The PuraFlame 27 in free-standing electric log set suits an existing opening when you want adjustable flame color and sound without a gas connection. Its 6 flame colors and 5 brightness settings work with or without heat.
The set measures 27 x 19.9 x 9.8 in and uses a 120 V polarized plug. PuraFlame describes its heater as supplemental for a room up to 400 sq ft, not a primary heat source.
A thermostat and timer add control options, and a remote is included. Confirm that the unit fits the hearth and that an outlet is within reach.
LegendFlame 25" W Free Standing Electric Fireplace: Best for a compact electric log set
- 25 x 20 x 10 in
- Flame effect works with or without heat
- Remote control
- Supplemental heat for up to 400 sq ft
A compact electric log set that can stand in an existing opening or cabinet. It provides a flame effect and supplemental heat without a natural gas connection.
Pros
- Compact stated dimensions
- Flame effect can run without heat
- Remote control included
Cons
- Electric rather than natural gas
- Not a primary heat source
- Opening dimensions still need checking
The LegendFlame 25 in freestanding electric log set has stated dimensions of 25 x 20 x 10 in. It can stand in an existing opening or cabinet, making it an option when you want a compact electric setup.
Its flame effect works with or without heat, and the remote is included. The maker describes the heat as supplemental for up to 400 sq ft, so it isn't intended as a primary heat source.
This pick doesn't use natural gas. Consider it only if the goal is a freestanding flame effect and supplemental heat rather than a gas-burning insert.
How do you choose an insert for an existing natural gas supply?
Choose an insert only after confirming that its fuel, opening dimensions and venting requirements match your fireplace. A natural gas line is one part of the fit check, not proof that a particular appliance is suitable.
Start by measuring width, height and depth at the narrowest points. Then identify the fireplace type and check whether the appliance requires a chimney liner, direct vent connection or another approved arrangement.
If your opening is limited, our guide to Best Gas Fireplace Insert For Small Fireplaces covers the space questions to resolve before you shop. Ask a qualified installer to check the gas connection and venting plan.
Are natural gas logs and inserts interchangeable?
No. Logs are components for a compatible gas appliance, while an insert is a complete appliance fitted into a fireplace opening.
A decorative set can't replace a burner, controls, venting or required safety components. Confirm approved log types and placement in the appliance manual, and don't mix fuel types unless the manufacturer specifies that setup.
When is an electric insert a sensible alternative?
An electric insert can suit an existing hearth when you don't need to burn natural gas and can provide the required outlet. The PuraFlame options in this roundup use plug-in power, while the duraflame® set is designed to sit in an existing fireplace.
Electric flame effects also work independently of heat on several picks. Check unit dimensions, outlet placement and the maker's stated heating role before choosing one as a decorative or supplemental heat source.
What should you check before installing a gas insert?
Check the appliance manual, opening measurements, fuel supply and venting requirements before installation. A qualified professional can verify the gas connection and vent path for the specific fireplace.
For a repair, match the part number and exact appliance model. The Lamudo pilot assembly covers specific models, so a general match by brand isn't enough.
Which natural gas fireplace insert should you choose?
Choose a complete gas appliance that matches your opening and venting if you want natural gas heat. Choose Barton or Uniflasy only as decorative logs for a compatible appliance, and the Lamudo assembly only for an exact model and part match.
If you don't need gas operation, compare the electric inserts and log sets by their dimensions and outlet needs. For the broader fuel choice, start with [Propane vs.
Natural Gas Fireplaces: Which Is Better?](/propane-vs-natural-gas-fireplace/) and Propane vs. Natural Gas Fireplaces: Pros and Cons.
Our top 3 picks at a glance
-
1
Best for a plug-in insert
PuraFlame Western Electric Fireplace Insert with Fire
9.7/10 our score
See it on Amazon -
2
Best for a vented gas log display
Barton 10-Piece Ceramic Gas Fireplace Logs
9.6/10 our score
See it on Amazon -
3
Frequently asked questions
Can you put a natural gas insert in an existing fireplace?
Yes, if the fireplace opening, venting and gas connection suit the specific insert. Measure the opening and confirm the appliance's installation requirements with a qualified professional before buying.
An existing gas line alone doesn't confirm that an insert will fit or vent safely.
Are gas fireplace logs the same as a gas insert?
No. Gas logs are a log set intended for a compatible gas appliance, while an insert is a complete appliance fitted into a fireplace opening.
Check whether you need a full unit, replacement parts or a decorative log set.
Our guide to gas fireplace inserts vs gas logs explains the differences.
Do natural gas fireplace inserts need a chimney?
It depends on the appliance. Some gas inserts use a venting system that connects through a chimney, while other designs have different installation requirements.
Follow the appliance manual and have a qualified professional check the vent path before installation.
Can you use propane logs with natural gas?
Only when the appliance and log set are approved for that fuel and configured for it. Natural gas and propane systems aren't automatically interchangeable.
Compare the fuel requirements in the manual, and see our guides to propane vs. natural gas fireplaces and the pros and cons of propane vs. natural gas fireplaces.
