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 Pleasant Hearth 46 in. Dual Fuel Platinum Oak Vent Free Fireplace System offers a substantial heat output of 33,000 BTUs per hour, capable of warming spaces up to 1,400 square feet, making it suitable for medium to large living rooms. Its dual fuel capability allows it to operate on both natural gas and liquid propane, offering flexibility depending on your fuel source availability. The thermostat control knob is a notable feature, automatically maintaining your desired temperature for convenience and comfort.

Design-wise, the fireplace has a classic look with a platinum oak finish which might appeal to those looking for a traditional aesthetic. Additionally, the dual burner provides a fuller flame effect, enhancing the visual appeal of the fire. The fireplace is vent-free, which simplifies installation and placement as it doesn’t require a chimney or external venting. Safety features include a built-in ignition system and adjustable thermostat.

While the product is substantial in weight at 171.5 pounds, it is freestanding, which means it can be placed anywhere in the room without the need for wall mounting. Efficiency is boosted by the vent-free design, ensuring that heat is not lost through vents and stays within the room. This product would best benefit users seeking a reliable, flexible, and efficient heating solution with a classic design and straightforward installation.

The Pleasant Hearth 36 Compact 20,000 Liquid Propane Vent Free Fireplace System is a solid choice for those seeking to add a ventless gas fireplace to their home. With a BTU rating of 20,000, it can effectively heat areas up to 700 square feet, making it suitable for medium-sized rooms. The thermostat control knob is a convenient feature, allowing automatic maintenance of the desired heat level without constant adjustments. This fireplace is designed for wall or corner installation, providing flexibility in placement to best suit your living space.

It is important to note that fuel conversion is not permitted, so it is only compatible with liquid propane. This could be a limitation if you require a natural gas option. The rich heritage finish adds a classic aesthetic, which can complement traditional home decor styles, but it might not appeal to those with modern or contemporary tastes. Weighing 78.4 pounds, the unit is relatively heavy, which could make installation a bit challenging without assistance. The fireplace does not require batteries, which simplifies its maintenance but may limit some modern conveniences.

This model comes with a 2-year limited warranty, providing some peace of mind. Although assembly is required, the included components and instructions should facilitate the setup process. This ventless gas fireplace is efficient and flexible in installation, with a classic design and reliable heating performance, though its fuel type limitation should be considered.