A gas fireplace insert offers a convenient way to add warmth and ambiance to your home without the hassle of wood. The best models combine efficient heating with realistic flames and easy operation. The ProCom 36-inch Universal Ventless Firebox Insert stands out as the top overall pick for its versatility and zero clearance design. Duluth Forge models excel in remote control convenience and dual-fuel options, appealing to those seeking flexibility. However, tradeoffs include varying costs, installation complexity, and fuel preferences. Continue reading for a detailed breakdown of these options and what to consider before buying.
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Key Takeaways
- The top picks balance ease of installation, realistic flame effects, and heating capacity.
- Venting options and fuel types significantly influence long-term operation and maintenance costs.
- Remote controls and thermostatic features add convenience but often come at a higher price.
- Zero clearance designs simplify installation but may limit customization or expansion.
- Price ranges vary widely; investing in a premium model can deliver better durability and features.
| ProCom 36-inch Universal Ventless Firebox Insert – Zero Clearance Design |  | Best Overall for Versatile Installation and Customization | Dimensions: 36.8” H x 43” W x 19” D | Weight: 83.8 lbs | Material: High-quality materials (assembled in the USA) | VIEW ON AMAZON | See Our Full Breakdown |
| Duluth Forge Liquid Propane Ventless Gas Fireplace Insert |  | Best for High Heat and Realistic Flames with Smart Control | Fuel Type: Liquid Propane | Heat Output: 26,000 BTUs | Heating Area: Up to 1,350 sq. ft. | VIEW ON AMAZON | See Our Full Breakdown |
| Duluth Forge Natural Gas Ventless Gas Fireplace Insert – 26,000 BTU, T-Stat Control |  | Best for Zone Heating with Natural Gas and Precise Control | VIEW ON AMAZON | See Our Full Breakdown | |||
| Duluth Forge Dual Fuel Ventless Gas Fireplace Insert – 32,000 BTU, T-Stat Control |  | Best Dual Fuel Flexibility and High Power | BTU: 32,000 | Fuel Type: Natural Gas or Liquid Propane | Efficiency: 99.9% | VIEW ON AMAZON | See Our Full Breakdown |
| Duluth Forge Natural Gas Ventless Gas Fireplace Insert – 26,000 BTU, Remote Control | | Best for Ease of Use with Remote Operation and Natural Gas | BTU: 26,000 | Heating Area: 1,350 sq. ft. | Fuel Type: Natural Gas | VIEW ON AMAZON | See Our Full Breakdown |
| ProCom 36in. Universal Ventless Firebox Insert – Zero Clearance Design, Model PC36VFC, Black |  | Best for Versatile Wall Installation and Aesthetic Impact | Model: PC36VFC | Size: 36 inches | Color: Black | VIEW ON AMAZON | See Our Full Breakdown |
| Duluth Forge Dual Fuel Ventless Gas Fireplace Insert – 32,000 BTU, Remote Control |  | Best for Flexible Fuel Options and Remote Convenience | BTU: 32,000 | Fuel Type: Natural Gas or Liquid Propane | Efficiency: 99.9% | VIEW ON AMAZON | See Our Full Breakdown |
| Duluth Forge Dual Fuel Ventless Gas Fireplace Insert – 32,000 BTU, Remote Control | | Best for Compact Size and Ease of Use | BTU: 32,000 | Fuel: Natural Gas or Liquid Propane | Efficiency: 99.9% | VIEW ON AMAZON | See Our Full Breakdown |
| gas fireplace insert | Efficiency | Dimensions | Weight | Fuel Type |
|---|---|---|---|---|
| ProCom 36-inch Universal Ventl | — | 36.8” H x 43” W x 19” D | 83.8 lbs | — |
| Duluth Forge Liquid Propane Ve | 99.9% | — | — | Liquid Propane |
| Duluth Forge Natural Gas Ventl | — | — | — | — |
| Duluth Forge Dual Fuel Ventles | 99.9% | 15.6" H x 29.1" W x 29.5" D | 69.5 lbs | Natural Gas or Liquid Propane |
| Duluth Forge Natural Gas Ventl | 99.9% | — | — | Natural Gas |
| ProCom 36in. Universal Ventles | — | — | — | — |
| Duluth Forge Dual Fuel Ventles | 99.9% | 18.38" H x 33.27" W x 36.38" D | 88.2 lbs | Natural Gas or Liquid Propane |
| Duluth Forge Dual Fuel Ventles | 99.9% | 15.6" H x 29.1" W x 29.5" D | 69.5 lbs | — |
More Details on Our Top Picks
ProCom 36-inch Universal Ventless Firebox Insert – Zero Clearance Design
The ProCom 36-inch ventless firebox stands out for its adaptable installation options, making it ideal for tight spaces and DIY projects. Its slim profile allows it to fit where larger units cannot, and the ability to install recessed or against the wall provides flexibility for various interior styles. While it accepts a wide range of ventless gas logs, it does require additional support due to its weight and access to a gas line. Compared to more elaborate inserts, this model offers straightforward functionality without complex controls but trades off some aesthetic sophistication. This pick is best suited for homeowners seeking a customizable, space-efficient fireplace insert that can be easily integrated into existing structures.
Pros:- Slim profile for tight spaces
- Versatile installation options including recessed or wall-mounted
- Accepts various ventless gas logs
- Made with high-quality materials in the USA
Cons:- Logs are not included, requiring additional purchase
- Heavier weight may need extra support during installation
- Requires access to a gas line
Best for: Homeowners with limited space who want a flexible, easy-to-install fireplace solution
Not ideal for: Those seeking a highly realistic flame or elaborate decorative features, as it focuses more on compatibility and space efficiency
- Dimensions:36.8” H x 43” W x 19” D
- Weight:83.8 lbs
- Material:High-quality materials (assembled in the USA)
- Installation:Zero clearance, recessed or against wall
- Compatible logs:Accepts 18”, 24”, or 30” ventless gas log sets
- Features:Decorative sprayed brick liner, airflow technology, large viewing area
Our verdict“This model makes the most sense for those needing a customizable, space-saving insert that adapts to different installation scenarios.”
Duluth Forge Liquid Propane Ventless Gas Fireplace Insert
This Duluth Forge ventless propane insert delivers impressive heat output—up to 26,000 BTUs—covering large areas up to 1,350 sq. ft., making it ideal for open-plan living spaces. Its five hand-painted ceramic fiber logs and dual ported burner create a highly realistic flame that rivals more decorative options like the models from Duluth Forge with remote control. The inclusion of a smart thermostat ensures consistent comfort without manual adjustments, a feature not found on the less technologically advanced options. However, its reliance on liquid propane limits its use to homes with a propane supply, and ventless operation may be restricted in certain jurisdictions. Compared to natural gas models, this offers higher BTU output but at the cost of fuel flexibility and potential location restrictions.
Pros:- High heat output of 26,000 BTUs
- Realistic flames with hand-painted logs
- Smart thermostat for automatic temperature control
- Battery-assisted Piezo ignition for easy startup
Cons:- Requires liquid propane, not natural gas
- Ventless design may not be permitted everywhere
- Limited to propane fuel only
Best for: Homeowners wanting a powerful, realistic propane fireplace with modern temperature control
Not ideal for: Those preferring natural gas or with restrictions on ventless propane appliances
- Fuel Type:Liquid Propane
- Heat Output:26,000 BTUs
- Heating Area:Up to 1,350 sq. ft.
- Efficiency:99.9%
- Logs:5 hand-painted ceramic fiber logs
- Ignition:Battery-assisted Piezo ignition
- Safety Features:Oxygen Depletion Sensor, automatic shut-off
- Installation:Zero clearance; recessed or mantel-mounted
Our verdict“This pick suits those seeking high heat and realism in propane-powered units, although fuel restrictions may limit placement.”
Duluth Forge Natural Gas Ventless Gas Fireplace Insert – 26,000 BTU, T-Stat Control
The Duluth Forge natural gas insert offers a reliable heating capacity of 26,000 BTUs, perfect for efficiently warming medium to large rooms up to 1,350 sq. ft. Its design flexibility allows for recessed installation or pairing with a face mantel, similar to the propane version but tailored for natural gas supply. The inclusion of a smart thermostat provides automatic cycle control, maintaining a steady temperature that enhances comfort. Its realistic ceramic fiber logs and dual burner produce convincing flames, comparable to other Duluth Forge models, but with the advantage of natural gas use. However, its need for a natural gas hookup may exclude some homes, and the installation clearance requirements can be demanding. This insert is ideal for those who want the convenience of natural gas with zone heating capabilities.
Pros:- Reliable 26,000 BTU heat output
- Smart thermostat for automatic operation
- Realistic flame with ceramic logs
- Flexible installation options
Cons:- Requires natural gas connection
- Relatively large clearance clearance needed
- Limited to natural gas fuel
Best for: Homeowners with natural gas access seeking automatic, zone-specific heating
Not ideal for: Individuals without natural gas supply or those wanting a ventless propane option
Our verdict“This unit makes sense for those with natural gas access who prioritize consistent, automatic zone heating and realistic flames.”
Duluth Forge Dual Fuel Ventless Gas Fireplace Insert – 32,000 BTU, T-Stat Control
The Duluth Forge dual fuel insert offers a substantial 32,000 BTUs, making it suitable for larger spaces or colder climates. Its dual compatibility with natural gas and propane provides flexibility for different homes, and the automatic thermostat ensures consistent comfort. Compared to single-fuel models like the propane-only Duluth Forge, this unit offers greater versatility—especially helpful if your fuel source changes or you want to keep options open. The realistic ceramic fiber logs add to the ambiance, and the high efficiency of 99.9% helps keep energy costs down. The main tradeoff is its larger size and weight, which can complicate installation for smaller or more constrained spaces. This model is best for those who want the ability to switch fuels and need high output.
Pros:- Dual fuel capability for natural gas or propane
- High 32,000 BTU output
- Automatic thermostat for consistent heating
- Realistic flame effect
Cons:- Requires a gas line for installation
- Heavier and larger, demanding more space and support
Best for: Large or variable households needing fuel flexibility and high heating capacity
Not ideal for: Smaller rooms or homeowners without easy access to natural gas or propane
- BTU:32,000
- Fuel Type:Natural Gas or Liquid Propane
- Efficiency:99.9%
- Dimensions:15.6″ H x 29.1″ W x 29.5″ D
- Weight:69.5 lbs
Our verdict“Ideal for those prioritizing fuel flexibility and powerful heating in larger areas, despite more complex installation needs.”
Duluth Forge Natural Gas Ventless Gas Fireplace Insert – 26,000 BTU, Remote Control
The Duluth Forge natural gas insert with remote offers a convenient way to control heat and flame effects from across the room, a feature often absent in simpler models like the ProCom firebox. With 26,000 BTUs, it provides ample warmth for spaces up to 1,350 sq. ft., and the remote makes adjusting settings easy without manual access. Its realistic ceramic logs and automatic safety features mirror those of other Duluth Forge natural gas models, but the remote control enhances daily usability. However, it relies solely on natural gas, which may not be accessible in all homes, and the ventless design might raise concerns for some users. This model makes the most sense for those prioritizing convenience and natural gas compatibility.
Pros:- Remote control for easy operation
- Reliable 26,000 BTU heating capacity
- Realistic ceramic fiber logs
- Automatic safety features
Cons:- Requires natural gas hookup
- No venting system, which may concern some users
Best for: Homeowners wanting easy, remote-controlled operation with natural gas connection
Not ideal for: Those without natural gas service or seeking a vented or hybrid fuel option
- BTU:26,000
- Heating Area:1,350 sq. ft.
- Fuel Type:Natural Gas
- Safety Features:Oxygen Depletion Sensor, automatic shut-off
- Efficiency:99.9%
Our verdict“This choice is particularly suited to users seeking effortless operation and natural gas compatibility in a realistic fireplace.”
ProCom 36in. Universal Ventless Firebox Insert – Zero Clearance Design, Model PC36VFC, Black
This option stands out for its zero-clearance design, making it exceptionally flexible for wall or recessed installation without requiring a traditional chimney. Compared with the Duluth Forge dual fuel inserts, it doesn’t offer fuel flexibility but excels in its sleek, high-quality American-made construction and large viewing area. Its airflow technology maximizes heat output, providing dependable warmth even in colder months. However, it’s limited to ventless gas log sets and demands direct access to a gas line, which could complicate installation in some homes. The decorative brick liner adds visual appeal, but the design may not match every interior style. Overall, this firebox makes the most sense for homeowners wanting a stylish, space-saving solution with straightforward installation and high-quality build.Pros:- Zero-clearance design simplifies installation against walls or within recesses
- Large viewing window enhances aesthetic appeal
- Made with high-quality materials in the USA ensures durability
Cons:- Requires access to a gas line, limiting placement options
- Limited to ventless gas log sets, reducing fuel customization
- Design may not complement all home styles
Best for: Homeowners seeking a wall-mounted, high-quality, ventless firebox that enhances modern or contemporary interiors.
Not ideal for: Those who prefer traditional fireplaces with chimneys or venting, or who want the flexibility of multiple fuel options.
- Model:PC36VFC
- Size:36 inches
- Color:Black
- Installation:Wall or recessed
- Material:High-quality materials
- Features:Zero clearance, airflow technology, decorative brick liner
Our verdict“This firebox is ideal for modern homes needing a stylish, space-efficient, ventless solution with simple installation.”
Duluth Forge Dual Fuel Ventless Gas Fireplace Insert – 32,000 BTU, Remote Control
This insert excels thanks to its dual fuel capability, allowing use with natural gas or propane, which offers added versatility compared to the single-fuel Duluth Forge models. Its realistic ceramic fiber logs and remote control with LCD make operation straightforward and visually appealing, especially for those who want a cozy, authentic-looking fire without complex setup. It heats efficiently up to 1500 sq. ft., making it suitable for medium-sized spaces. However, requiring a gas line and a minimum ceiling clearance of 42 inches could limit placement options, especially in retrofit projects. Its relatively compact size makes it easier to fit into existing fireplaces or custom openings, but the weight of nearly 70 lbs may demand extra help during installation. Overall, this pick is best suited for homeowners wanting fuel flexibility and remote operation in a compact, efficient package.Pros:- Dual fuel capability offers flexibility with natural gas or propane
- Remote control with LCD simplifies operation
- Realistic ceramic logs create a convincing fire appearance
- High efficiency heats up to 1500 sq. ft.
Cons:- Requires a gas line, limiting placement options
- Ceiling clearance of 42 inches needed for safe operation
- Heavy weight may complicate installation
Best for: Consumers seeking a dual-fuel insert with remote control for flexible installation in medium-sized living areas.
Not ideal for: People with very limited ceiling clearance or those unwilling to handle the weight and installation complexity.
- BTU:32,000
- Fuel Type:Natural Gas or Liquid Propane
- Efficiency:99.9%
- Dimensions:18.38″ H x 33.27″ W x 36.38″ D
- Weight:88.2 lbs
- Included Items:9 ceramic logs, remote control & receiver
Our verdict“This dual fuel, remote-controlled insert is ideal for those prioritizing fuel flexibility and easy operation in a mid-sized space.”
Duluth Forge Dual Fuel Ventless Gas Fireplace Insert – 32,000 BTU, Remote Control
This model offers the same dual fuel flexibility as the larger insert but in a more compact form, making it suitable for smaller spaces or retrofit installations. Its remote control with LCD screen makes it accessible for users who want to operate the fire from a distance without fuss. The realistic ceramic logs provide a cozy ambiance, and the high efficiency ensures effective heating, covering up to 1500 sq. ft. of space. However, its smaller size means less visual impact compared to larger inserts like the B017XS5JM0, and it still requires a gas line, limiting placement options. The nearly 70 lbs weight suggests that installation might need extra help, especially in tight spaces. This pick makes the most sense for those who need a dual fuel insert that fits into tighter spaces while still delivering quality heat and appearance.Pros:- Dual fuel technology for natural gas or propane use
- Remote control with LCD for convenient operation
- Realistic ceramic fiber logs enhance the visual effect
- High efficiency heats up to 1500 sq. ft.
Cons:- Requires a gas connection, not suitable for ventless setup
- Clearance from top to ceiling must be at least 42 inches
- Heavy at nearly 70 lbs, requiring assistance for installation
Best for: Homeowners needing a small, efficient, dual fuel insert that’s easy to operate remotely and fits into limited space.
Not ideal for: Those seeking a larger, more visually commanding fireplace or without access to a gas line.
- BTU:32,000
- Fuel:Natural Gas or Liquid Propane
- Efficiency:99.9%
- Dimensions:15.6″ H x 29.1″ W x 29.5″ D
- Weight:69.5 lbs
- Included Items:6 ceramic logs, remote control & receiver
Our verdict“This compact dual fuel insert suits small spaces where remote control and fuel flexibility are priorities, despite installation considerations.”
How We Picked
The products in this roundup were selected based on performance, ease of installation, build quality, and user convenience. We prioritized models that offer reliable heat output, realistic flame effects, and safety features like zero clearance or ventless operation. Price-to-value ratios and customer feedback also played a role, helping us identify which models deliver the most for their cost. Our ranking reflects a combination of versatility, usability, and longevity, ensuring each option serves different buyer needs—from beginners to seasoned homeowners.| gas fireplace insert | Fuel Type |
|---|---|
| ProCom 36-inch Universal Ventl | — |
| Duluth Forge Liquid Propane Ve | Liquid Propane |
| Duluth Forge Natural Gas Ventl | — |
| Duluth Forge Dual Fuel Ventles | Natural Gas or Liquid Propane |
| Duluth Forge Natural Gas Ventl | Natural Gas |
| ProCom 36in. Universal Ventles | — |
| Duluth Forge Dual Fuel Ventles | Natural Gas or Liquid Propane |
| Duluth Forge Dual Fuel Ventles | — |
Factors to Consider When Choosing Gas Fireplace Insert
Choosing the right gas fireplace insert involves weighing several factors that go beyond basic features. Understanding these considerations helps you find a model that fits your home’s layout, your comfort preferences, and your budget. A careful evaluation prevents common mistakes like underestimating installation complexity or overpaying for unnecessary features. Here’s what to keep in mind:Venting and Fuel Type
Venting options such as ventless or direct vent impact installation complexity, cost, and indoor air quality. Ventless models like many in this roundup are easier to install but require proper room ventilation and may be unsuitable for all homes. Fuel type—natural gas versus propane—affects operational costs and availability. Dual-fuel models offer flexibility but tend to come at a premium.
Heating Capacity and Size
Match the insert’s BTU output to your space size for effective heating. An undersized insert won’t warm the room adequately, while an oversized one can cause inefficiency and discomfort. Measure your room and consider the heat output of each model, especially if you want a balance between heating and ambiance.
Realism and Aesthetics
Realistic flame effects and ember beds enhance the visual appeal. Some models feature advanced LED technology for more authentic flames, while others prioritize simplicity. Consider how much visual realism matters to you versus basic functionality, especially if the primary goal is warmth rather than ambiance.
Ease of Installation and Maintenance
Zero clearance designs significantly reduce installation complexity, making them suitable for DIY setups. Ventless models eliminate the need for venting infrastructure but may require regular cleaning and maintenance to ensure safety. Evaluate your technical skills and willingness to perform upkeep when choosing a model.
Features and Controls
Remote controls, thermostats, and programmable timers add convenience but often increase the price. Decide which features are worth the extra investment: for some, a simple switch suffices; for others, automation enhances daily comfort and energy savings. Balance your budget with your desire for ease of use.
Frequently Asked Questions
Can I install a gas fireplace insert myself?
Installation complexity varies by model and home setup. Some ventless inserts with zero clearance designs can be installed by confident DIYers, following manufacturer instructions and local codes. However, vented models or those requiring venting connections often demand professional installation to ensure safety and compliance. Always check local regulations and consider hiring a licensed technician if unsure.
Are ventless gas fireplace inserts safe for indoor use?
Ventless inserts are generally safe when installed and maintained properly, but they do release combustion byproducts into the room. This makes adequate ventilation and regular cleaning essential, especially for allergy sufferers or those with respiratory issues. Some local codes restrict ventless models, so verify regulations in your area before purchase.
How much do gas fireplace inserts cost to run?
The operational cost depends on your fuel choice and local energy prices. Natural gas is typically cheaper than propane, and the BTU output influences consumption. On average, running a gas fireplace insert may add $20-$50 per month to your utility bill, but this varies based on usage and efficiency. Selecting a higher-efficiency model can reduce ongoing costs.
What maintenance is required for a gas fireplace insert?
Regular maintenance includes cleaning the logs or flame bed, inspecting for gas leaks, and checking the venting system if applicable. Many models have removable components for easy cleaning. Annual professional inspections are recommended to ensure safe operation and to prolong the lifespan of your insert.
What features should I prioritize for a beginner-friendly gas fireplace insert?
Beginners should look for models with simple controls, remote operation, and minimal maintenance requirements. Ventless inserts with zero clearance designs are often the easiest to install and operate. Prioritize safety features like automatic shut-off and clear user instructions to ensure a smooth experience. Budget-friendly options with straightforward operation can make your first fireplace upgrade less stressful.
Conclusion
For most homeowners, the ProCom 36-inch Universal Ventless Firebox Insert emerges as the best overall choice due to its versatility, ease of installation, and reliable performance. Those seeking the best value might prefer models like the Duluth Forge natural gas options, which balance features with affordability. If you’re willing to invest in premium features, a high-end dual-fuel model with remote control and realistic flames will deliver a luxurious experience. Beginners or those prioritizing simple setup should consider ventless, zero clearance options, while homeowners with specific fuel preferences or room sizes can tailor their selection accordingly. Ultimately, your choice depends on your home’s layout, your budget, and your heating needs.
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