10 Best Ventless Gas Fireplace 2025 in the United States

The Duluth Forge Ventless Stainless Outdoor Gas Fireplace Insert offers a powerful 24,000 BTU output, making it a strong option for heating outdoor spaces. Its manual control valve and easy start battery-assisted Piezo ignition provide reliable operation, though manual controls may not be as convenient as automatic ones for some users.

Safety is addressed with the inclusion of a drain tray to manage moisture, which is essential for outdoor use. The use of high-quality 304 grade stainless steel ensures durability and longevity, and the product is assembled in the USA, which might appeal to those looking for American-made goods. The reflective crystal glass media adds a stylish touch to the fireplace, creating an attractive flame display that enhances outdoor aesthetics.

Installation is designed to be straightforward, with the fireplace having a relatively slim profile that won't take up too much space. It operates on natural gas but can be converted to liquid propane with the included kit, offering flexibility depending on available fuel. Efficiency is inherently strong given the ventless design, ensuring heat is maximized without loss through a vent.

The Comfort Glow Dual Fuel Ventless Gas Fireplace is designed to efficiently heat spaces up to 950 sq ft, making it suitable for larger living rooms or open areas. With a 26,000 BTU rating, it provides substantial warmth. The ventless design eliminates the need for a chimney, simplifying installation and allowing placement flexibility in any room. This fireplace supports both natural gas and liquid propane, offering versatility depending on your fuel preference.

The adjustable thermostat allows precise control over the heat output, enhancing comfort. It features an electric igniter and one-button control for straightforward operation, ensuring ease of use. Safety is addressed through a safety shut-off feature, which is crucial for indoor heating devices. The elegant walnut-finished mantel adds a rich, stylish touch to your decor, making it not just a functional heating solution but also a visually appealing addition to your home.

The unit is ready to assemble and includes all necessary components for a quick setup. For improved heat circulation, an optional blower can be purchased separately. One notable drawback is its weight, at 151.7 pounds, which may require careful handling during installation. Additionally, while the fireplace is efficient, it does not include built-in electricity for operation, relying solely on gas power. This fireplace is ideal for users seeking a flexible, efficient heating solution with a stylish design and straightforward installation.

The Duluth Forge Dual Fuel Ventless Gas Stove (Model FDSR25) is a versatile and efficient heating solution. With a strong heat output of 26,000 BTUs, it can comfortably heat an area of up to 1,200 square feet, making it suitable for medium to large rooms. The dual fuel technology allows it to operate on either natural gas or liquid propane, providing flexibility based on fuel availability. One of its standout features is the included thermostat remote control, which lets you adjust the temperature and manage the stove conveniently from a distance.

This unit is also highly efficient, with a 99.9% efficiency rating, meaning almost all the heat generated is utilized without the need for external vents or chimneys, which can save on installation costs and conserve energy. Safety is well-considered with a push-button Piezo ignition system and an oxygen depletion sensor that shuts off the unit if unsafe levels are detected. The design is aesthetically pleasing with a matte black finish and hand-painted ceramic logs that add a realistic touch.

However, the unit is relatively heavy at 80 pounds, which may make initial setup and placement challenging. Additionally, it requires assembly, which might be a bit daunting for some users. This gas stove is best suited for those looking for an efficient, stylish, and flexible heating option without the need for traditional venting.