When it comes to adding warmth and ambiance without the hassle of a chimney or constant firewood, dual fuel ventless gas fireplaces and log sets offer an efficient and stylish solution. These units allow you to choose between natural gas and propane, are easy to install, and provide powerful heating with a realistic flame effect.
This guide compares the best options available, highlighting key features, benefits, and considerations to help you choose the right product for your space.
Quick Recommendations
- Best for Larger Rooms:
Duluth Forge Fireplace System (Slate Gray or Antique White) – Great heat output and elegant design. - Best Budget Option:
Duluth Forge DLS-18T-1 Log Set – Solid heating performance with thermostat control at an affordable price. - Most Realistic Flames:
Duluth Forge Insert (9 Logs) – Dual-flame system and ceramic logs create an authentic fireplace experience. - Best for Small Spaces:
ProCom Ventless Stove – Compact, efficient, and easy to install. - Best Stove Style Heater:
Duluth Forge FDSR25 – Combines classic design with modern remote thermostat control.
List of The Best Dual Fuel Ventless Gas Fireplaces Reviews:
Duluth Forge Dual Fuel Ventless Gas Fireplace System (Slate Gray)
The Duluth Forge Dual Fuel Ventless Gas Fireplace System is a sleek, freestanding heating unit designed for both performance and aesthetic charm. Its dual fuel technology allows you to use either natural gas or liquid propane, offering up to 32,000 BTU of heat—enough to warm spaces up to 1,500 sq. ft. With its hand-painted ceramic logs and furniture-grade mantle, it blends rustic style with modern functionality. A remote control with thermostat options enhances convenience, making it easy to maintain a comfortable atmosphere.
Key Features
- 32,000 BTU heat output, ideal for spaces up to 1,500 sq. ft.
- Dual Fuel Technology: compatible with natural gas and liquid propane
- Remote control with LCD and thermostat functionality
- Ventless design: no chimney or external venting required
- Six realistic ceramic fiber logs and a distressed, furniture-style mantle
- Built-in safety features including oxygen depletion sensor (ODS)
- Compact dimensions: 45″ W x 15″ D x 45″ H
What We Like
- Efficient ventless operation—no chimney installation needed
- Remote-controlled thermostat adds user-friendly temperature control
- Attractive design with realistic logs and burnished mantel
- Heats large areas quickly and consistently
- Versatile fuel options for greater flexibility
What We Don’t Like
- Not returnable due to hazardous materials shipping regulations
- Requires a minimum clearance from ceiling (42”), which might limit placement in some rooms
Overall
For homeowners seeking a stylish and powerful heating solution, the Duluth Forge Dual Fuel Ventless Gas Fireplace delivers both form and function. Its easy installation, strong heat output, and dual-fuel capability make it a dependable choice for cozying up your space during colder months. While its return policy is limited, the value it offers in heating performance and aesthetics makes it a solid investment for long-term comfort.
ProCom Ventless Dual Fuel Fireplace Stove (25,000 BTU, Black)
Compact yet powerful, the ProCom Ventless Dual Fuel Fireplace is a practical heating solution with a modern cast iron design and efficient performance. Designed to run on either natural gas or liquid propane, this freestanding unit delivers up to 25,000 BTU of heat—more than enough to warm rooms up to 1,100 square feet. With hand-painted concrete logs and a realistic flame effect, it adds cozy charm to any interior while offering reliable thermostat-based temperature control.
Key Features
- Dual fuel capability: compatible with natural gas or liquid propane
- Ventless design requires no chimney or outside ducting
- Heats up to 1,100 sq. ft. with 25,000 BTU output
- Built-in thermostat with variable heat settings
- Hand-painted refractory ceramic logs for realistic fireplace visuals
- Easy Piezo ignition system with included AAA battery
- 99.9% energy efficiency
- Safety shut-off system with oxygen depletion sensor (O.D.S.)
What We Like
- Strong heating performance in a space-saving design
- Realistic flame with durable, hand-painted log set
- Efficient and economical with minimal fuel waste
- Thermostat offers hands-free comfort control
- Easy to install and operate, even for first-time users
What We Don’t Like
- Not suitable for larger homes or multi-room heating
- Non-returnable due to hazardous material regulations
Overall
The ProCom Dual Fuel Ventless Gas Fireplace strikes a great balance between affordability, style, and performance. It’s ideal for small to medium spaces needing an efficient, low-maintenance heat source. While it might not be the best fit for very large areas, its elegant look and thermostat control make it a top contender for supplemental heating or cabin use—without the need for a chimney or complex setup.
Duluth Forge Dual Fuel Ventless Gas Fireplace Insert (32,000 BTU, Black)
With its sleek design and powerful output, the Duluth Forge Dual Fuel Ventless Gas Fireplace Insert is a refined solution for efficient zone heating. Engineered for flexibility, it operates using either natural gas or liquid propane, making it a smart fit for a wide range of homes. The insert includes nine hand-painted ceramic logs, a full-feature remote control, and a dual precision ported burner that produces lifelike flames. It’s capable of heating up to 1,500 square feet while maintaining 99.9% energy efficiency—without requiring a chimney or outside ducting.
Key Features
- Dual Fuel Technology: uses natural gas or liquid propane
- 32,000 BTU output heats spaces up to 1,500 sq. ft.
- Includes remote control with LCD screen for flame and temperature control
- 9 hand-painted ceramic fiber logs for realistic flame presentation
- Ventless zero-clearance design allows for flexible installation
- Built-in Oxygen Depletion Sensor (O.D.S.) with automatic shut-off
- Battery-assisted Piezo ignition for reliable starts
- Made and assembled in the USA using high-quality materials
What We Like
- Strong, consistent heating performance for larger spaces
- Attractive flame display with detailed ceramic logs
- No need for chimney or venting, making installation easier
- Includes full remote control with adjustable thermostat
- Made in the USA with a focus on quality and safety
What We Don’t Like
- Unit is relatively heavy (88+ lbs), which may require two people for installation
- Fixed black color might not suit all interior décor preferences
Overall
The Duluth Forge Dual Fuel Ventless Fireplace Insert stands out as a dependable, high-capacity heating solution that also enhances the room’s ambiance. With its realistic logs, intuitive controls, and zero-clearance flexibility, it’s ideal for homeowners who want the benefits of a fireplace without the hassle of venting. Its few minor drawbacks are unlikely to outweigh the convenience, warmth, and visual appeal it brings to any space.
Duluth Forge Dual Fuel Ventless Gas Fireplace Insert (32,000 BTU, 6 Logs, Black)
Compact yet capable, the Duluth Forge Dual Fuel Ventless Gas Fireplace Insert is engineered to provide robust warmth with sleek, built-in styling. Designed to work with both natural gas and liquid propane, this insert delivers 32,000 BTUs—enough to comfortably heat areas up to 1,500 square feet. Featuring six hand-painted ceramic logs and a user-friendly remote control, it blends modern function with traditional aesthetics, making it a solid option for those upgrading or installing a new fireplace insert.
Key Features
- Dual fuel system: compatible with natural gas or liquid propane
- 32,000 BTU heat output for spaces up to 1,500 sq. ft.
- Remote control operation with adjustable thermostat settings
- Six realistic hand-painted ceramic fiber logs
- Ventless design—no chimney or flue required
- Built-in safety features including oxygen depletion sensor (O.D.S.)
- Zero-clearance firebox design for easy wall integration
What We Like
- Reliable heating capacity for mid to large rooms
- Remote control makes temperature adjustments effortless
- Space-saving built-in design adds a polished finish to any room
- Clean burn with 99.9% efficiency rating
- Easy installation—no external venting needed
What We Don’t Like
- Fewer ceramic logs compared to some other models (6 logs)
- Only available in one color (black), limiting design flexibility
Overall
The Duluth Forge 32,000 BTU Dual Fuel Fireplace Insert strikes a great balance between performance and convenience. Whether you’re retrofitting an old fireplace or building a new one, this insert provides the heat output and efficiency you’d expect—without the complexity of venting. Its smaller log set doesn’t detract much from its visual appeal, and for many, its efficient, no-fuss operation will be the standout feature.
Duluth Forge DLS-18R-1 Dual Fuel Ventless Fireplace Log Set (30,000 BTU, Split Red Oak, 18″)
For those looking to add charm and heat to their existing fireplace, the Duluth Forge DLS-18R-1 Dual Fuel Ventless Fireplace Log Set is a strong contender. Designed with realism and function in mind, this set features eight hand-painted ceramic logs styled in a classic Split Red Oak finish. With 30,000 BTU of heat output and the flexibility to operate on either natural gas or propane, it’s capable of warming up to 1,000 square feet—making it a reliable and visually appealing heating solution.
Key Features
- Dual fuel compatible: works with natural gas or liquid propane
- 30,000 BTU heat output for spaces up to 1,000 sq. ft.
- Includes remote control with flame on/off and manual adjustment
- 8 hand-painted ceramic logs with realistic Red Oak detailing
- Freestanding design fits into most existing fireplaces
- Oxygen Depletion Sensor (O.D.S.) with auto shut-off
- No chimney or venting required
- Piezo ignition with included batteries
What We Like
- Simple upgrade for non-working wood fireplaces
- Strong heat output in a compact setup
- Beautiful log design adds authentic fireplace aesthetics
- Remote control enhances ease of use
- Safe and efficient, operating at 99.9% efficiency
What We Don’t Like
- Not suitable for very large or open-concept rooms
- Logs are fixed in design—limited customization in arrangement
Overall
The Duluth Forge DLS-18R-1 Log Set blends visual warmth with reliable performance, offering a great way to bring an unused fireplace back to life without the hassle of venting or wood-burning maintenance. It’s a practical choice for smaller to mid-sized rooms, and the elegant design paired with remote control operation ensures it’s as easy to enjoy as it is to install.
Duluth Forge Dual Fuel Ventless Gas Fireplace System (Antique White, 32,000 BTU)
Classic and commanding, the Duluth Forge Dual Fuel Ventless Gas Fireplace System in Antique White blends furniture-quality design with substantial heating power. With a heat output of 32,000 BTUs, this freestanding unit is capable of warming up to 1,500 square feet using either natural gas or liquid propane. Its nine hand-painted ceramic logs rest inside a stylish white mantel, offering an elegant centerpiece that’s both functional and visually pleasing. The included remote control makes operation simple and customizable.
Key Features
- Dual fuel compatibility: natural gas or liquid propane
- 32,000 BTU heat capacity, effective up to 1,500 sq. ft.
- Remote control with thermostat and manual settings
- Antique White mantel with traditional design and detailed trim
- Nine hand-painted ceramic fiber logs for lifelike flame presentation
- Ventless technology eliminates need for chimney or ductwork
- Built-in oxygen depletion sensor (O.D.S.) with automatic shut-off
What We Like
- Elegant mantel enhances both traditional and transitional decor
- Excellent heating performance for larger living spaces
- Simple remote operation with on/off and thermostat features
- No installation of external vents or chimneys required
- Realistic flame appearance adds cozy ambiance
What We Don’t Like
- Large footprint may not suit smaller rooms or minimal layouts
- Antique white finish might show dust or marks more easily
Overall
The Duluth Forge Dual Fuel Ventless Fireplace in Antique White brings refined character to any home while offering reliable and efficient heating. With user-friendly controls and beautiful detailing, it’s more than just a heating unit—it’s a statement piece that transforms your space. Ideal for those seeking warmth without sacrificing aesthetics, it’s a standout option for functional elegance.
Duluth Forge FDSR25 Dual Fuel Ventless Gas Stove (26,000 BTU, Matte Black)
The Duluth Forge FDSR25 brings classic stove charm and modern heating performance into one compact package. With 26,000 BTUs of output, this ventless gas stove can heat up to 1,200 square feet, making it a cozy addition for living rooms, sunrooms, or cabins. It’s equipped with dual fuel technology to operate on either natural gas or propane, and includes a thermostat remote control for easy heat management. Six hand-painted ceramic logs and a cast iron screen door create a rustic visual appeal, while the matte black finish suits most décor styles.
Key Features
- Dual fuel operation: compatible with natural gas or propane
- 26,000 BTU heat output warms up to 1,200 sq. ft.
- Remote control with thermostat and manual settings
- Six hand-painted ceramic fiber logs
- Matte black powder-coated finish
- Battery-assisted Piezo ignition system
- Oxygen Depletion Sensor (O.D.S.) with automatic shut-off
- Freestanding design, no chimney or external venting required
What We Like
- Traditional design blends well with rustic or vintage interiors
- High efficiency with 99.9% fuel usage
- Powerful heating despite its compact footprint
- Remote with LCD makes it simple to control heat levels
- Installation-friendly; doesn’t require complex venting
What We Don’t Like
- Remote thermostat setup can be tricky for first-time users
- Might be undersized for large open-concept homes
Overall
The Duluth Forge FDSR25 is a dependable heating stove with a touch of vintage style and modern features. It’s ideal for those seeking supplemental heating without the hassle of wood or external venting. With strong heat output and intuitive controls, it stands out as a practical and stylish option for small to mid-size spaces looking for both charm and performance.
Duluth Forge DLS-18T-1 Dual Fuel Ventless Fireplace Log Set (30,000 BTU, Thermostat Control, Split Red Oak, 18″)
The Duluth Forge DLS-18T-1 log set combines rustic looks with dependable heating performance, offering a ventless solution that uses either natural gas or propane. With a maximum output of 30,000 BTUs, it can heat up to 1,100 sq. ft., making it ideal for dens, living rooms, and small cabins. The eight hand-painted ceramic logs mimic Split Red Oak wood with impressive detail, while the included thermostat control ensures steady, hands-free comfort. Its U-burner design provides a dual-flame effect for added realism, bringing a warm, authentic glow to any approved firebox.
Key Features
- Dual fuel technology: compatible with natural gas or propane
- 30,000 BTU heat output covers up to 1,100 sq. ft.
- Thermostat control with five heat settings
- 8 hand-painted logs crafted from refractory ceramic
- U-burner chassis for two rows of flames
- Battery-assisted Piezo ignition
- 99.9% energy efficiency; no chimney or venting required
- Built-in O.D.S. (Oxygen Depletion Sensor) with auto shut-off
What We Like
- Realistic flame and wood appearance
- Efficient thermostat cycling maintains comfort without constant adjustment
- Ventless design allows easy installation in approved fireboxes
- High heat capacity for its size
- Simple operation, no electricity needed
What We Don’t Like
- No remote control included—manual control only
- Initial odor during first few uses may require airing out
Overall
The Duluth Forge DLS-18T-1 is a solid pick for homeowners seeking a reliable, no-frills heating upgrade. It offers strong performance and impressive visual appeal in a simple, freestanding format. While it lacks a remote, the built-in thermostat compensates by automating temperature control. It’s especially well-suited for anyone looking to retrofit a fireplace space with something both efficient and aesthetically pleasing.
Comparison Chart
| Product Name | Type | BTU Output | Heating Area | Fuel Type | Remote/Control | Style | Venting | Ideal Use |
|---|---|---|---|---|---|---|---|---|
| Duluth Forge Fireplace System (Slate Gray) | Freestanding with Mantel | 32,000 | 1,500 sq. ft. | Dual (NG/LP) | Remote + Thermostat | Rustic | Ventless | Large living spaces |
| ProCom Fireplace Stove (Black) | Freestanding Stove | 25,000 | 1,100 sq. ft. | Dual (NG/LP) | Thermostat Control | Modern Cast Iron | Ventless | Small to medium rooms |
| Duluth Forge Insert (9 Logs, Remote) | Fireplace Insert | 32,000 | 1,500 sq. ft. | Dual (NG/LP) | Remote + Thermostat | Traditional | Ventless | Retrofit fireplaces |
| Duluth Forge Insert (6 Logs, Remote) | Fireplace Insert | 32,000 | 1,500 sq. ft. | Dual (NG/LP) | Remote + Thermostat | Minimalist | Ventless | Custom-built or retrofitted spaces |
| Duluth Forge Log Set (DLS-18R-1) | Log Set | 30,000 | 1,000 sq. ft. | Dual (NG/LP) | Remote On/Off | Red Oak | Ventless | Upgrading wood fireplaces |
| Duluth Forge Fireplace System (Antique White) | Freestanding with Mantel | 32,000 | 1,500 sq. ft. | Dual (NG/LP) | Remote + Thermostat | Classic White | Ventless | Decorative and functional centerpiece |
| Duluth Forge Gas Stove (FDSR25) | Freestanding Stove | 26,000 | 1,200 sq. ft. | Dual (NG/LP) | Remote + Thermostat | Matte Black | Ventless | Rustic or vintage interiors |
| Duluth Forge Log Set (DLS-18T-1) | Log Set | 30,000 | 1,100 sq. ft. | Dual (NG/LP) | Thermostat Control | Red Oak | Ventless | Functional heating with realism |
Things to Consider Before Buying
1. BTU and Room Size
Make sure the unit’s heat output (BTU) matches the size of the space you’re heating. As a general guide:
- 20,000–25,000 BTU = up to 1,000 sq. ft.
- 30,000+ BTU = 1,100–1,500 sq. ft.
2. Style and Installation Type
- Freestanding models come with mantels or stove-like builds.
- Log sets require an existing or approved firebox.
- Inserts are for building into walls or fireplace openings.
3. Fuel Source (Natural Gas or Propane)
Ensure your home setup supports your chosen fuel. Dual fuel models give flexibility, but you’ll need a gas line or tank.
4. Control Type
- Remote control models offer convenience with on/off or full thermostat functionality.
- Thermostat-only models are more affordable but less hands-free.
5. Safety Features
Look for models with:
- Oxygen Depletion Sensors (O.D.S.)
- Automatic shut-off
- Battery-assisted ignition
6. Appearance
Consider the aesthetic fit for your room: log design, flame realism, and finish color.
FAQs
Ventless gas fireplaces do not require a chimney or external flue. They burn fuel efficiently, releasing minimal emissions into the room.
Yes. Dual fuel systems with built-in safety features like O.D.S. are designed for safe operation. Proper installation is essential.
Some freestanding models are DIY-friendly, but gas line connections should always be handled by licensed professionals.
No. Most units use battery-powered ignitions and do not require electricity—great for power outages.
Yes, the flames are real but generated through gas combustion, mimicking the look of a traditional fire.
Key Takeaways
- Dual fuel ventless fireplaces are efficient, flexible, and ideal for supplemental heating.
- Choose log sets for fireplace conversions, inserts for built-in setups, and freestanding units for easy installations.
- Most models heat 1,000–1,500 sq. ft., with outputs ranging from 25,000 to 32,000 BTU.
- Safety features, realistic flames, and thermostat control are common across top models.
- Ventless systems offer high efficiency (99.9%) and do not require outside venting or chimneys.
Conclusion
From elegant freestanding fireplaces with detailed mantels to realistic log sets that revitalize existing hearths, dual fuel ventless gas fireplaces offer reliable heat and timeless charm without the mess. Whether you need supplemental heat for a room or want to upgrade your space with cozy ambiance, these models provide smart, stylish solutions. Use this guide to find the one that fits your style, space, and comfort needs—all without sacrificing performance or safety.
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