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10 Best Electric Fireplace Insert For Existing Fireplace 2025 in the United States

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Our Top Picks

#1

Winner

PuraFlame Western 33" Electric Fireplace Insert with Trim Kit, Fire Crackling Sound, Resin Log, Remote Control, 750/1500W Heater, Black

Rating
9.9
Chosen by1,465
Size and Dimensions
Heating Capacity
Flame Effect

Most important from
4463 reviews

Size and Dimensions
The PuraFlame Western Electric Fireplace Insert fits perfectly into existing fireplace spaces with minimal cosmetic adjustments.
Heating Capacity
This insert provides a surprising amount of warmth and is notably more efficient than older models.
Flame Effect
The realistic flame effect, complete with a crackling sound, adds a cozy and authentic feel to any room.
Installation Type
Installation is a breeze, making it easy to set up and start using right away.
Safety Features
The design is not only visually appealing but also safe for homes with children, thanks to its cool-touch surface.
Energy Efficiency
This insert provides a surprising amount of warmth and is notably more efficient than older models.

The PuraFlame Western 33" Electric Fireplace Insert is designed to fit an existing fireplace space with overall dimensions of 44.1" wide, 31.5" high, and 8.8" deep. It offers a realistic flame effect with three settings for intensity and brightness, and its resin log and ember bed mimic the look of a wood-burning fireplace. The insert also includes a remote control for convenience and an adjustable thermostat, allowing it to provide supplemental heat for rooms up to 400 sq. ft. However, it is not intended as a primary heat source.

Installation is straightforward as the unit can be placed directly on the floor and plugged into a standard 120V outlet, but it cannot be hard-wired, which might limit placement options for some users. The unit is energy-efficient, utilizing LED technology for flame effects, and comes with safety features like a cool-touch surface and overheat protection.

Some potential downsides include its inability to serve as a main heat source and the fact that it comes in two packages, which may arrive on different days. Additionally, while customer service is noted as responsive, the one-year warranty might seem limited compared to other products in the market.

Rating
9.9
Chosen by1,465
Size and Dimensions
Heating Capacity
Flame Effect

Most important from
4463 reviews

Size and Dimensions
The PuraFlame Western Electric Fireplace Insert fits perfectly into existing fireplace spaces with minimal cosmetic adjustments.
Heating Capacity
This insert provides a surprising amount of warmth and is notably more efficient than older models.
Flame Effect
The realistic flame effect, complete with a crackling sound, adds a cozy and authentic feel to any room.
Installation Type
Installation is a breeze, making it easy to set up and start using right away.
Safety Features
The design is not only visually appealing but also safe for homes with children, thanks to its cool-touch surface.
Energy Efficiency
This insert provides a surprising amount of warmth and is notably more efficient than older models.
#2

PuraFlame Klaus 33” Electric Fireplace Insert with Trim Kit, Fire Crackling Sound, Resin Log, Glass Door and Mesh Screen, 750/1500W Heater, Black

Rating
9.8
Size and Dimensions
Heating Capacity
Flame Effect

Most important from
1371 reviews

Size and Dimensions
Fits perfectly into existing spaces and produces good heat while replicating the ambiance of a much pricier fireplace.
Heating Capacity
The built-in heater can take the edge off the chill, making it perfect for a small living room.
Flame Effect
The PuraFlame Klaus model looks amazing and works like a dream, creating a highly realistic fireplace experience.
Installation Type
Quick, easy setup with only an electric cord to plug into a standard outlet.

The PuraFlame Klaus 33” Electric Fireplace Insert is designed to fit into existing fireplaces, offering a realistic fire experience with minimal maintenance. It measures 44.1 inches wide, 31.5 inches high, and 10 inches deep. This fireplace insert stands out with its realistic flame effect and resin logs, creating a cozy atmosphere with three flame settings that can be adjusted for intensity and brightness.

Users can enjoy the ambiance of a fire all year round thanks to the energy-saving LED technology that works with or without the heat function. The heating capacity is suitable for rooms up to 400 sq. ft., making it a good supplemental heat source but not sufficient as the main heating system for larger areas. Installation is straightforward as it can simply sit on the floor and plug into a standard 120V outlet, though it cannot be hardwired.

Safety features include a glass door and mesh screen, along with an adjustable thermostat for user convenience. It also comes with a remote control, adding to its ease of use. However, the fireplace insert arrives in two packages, which might be delivered on separate days. This product combines traditional style with modern convenience, offering a hassle-free and visually appealing option for enhancing any living room.

Rating
9.8
Size and Dimensions
Heating Capacity
Flame Effect

Most important from
1371 reviews

Size and Dimensions
Fits perfectly into existing spaces and produces good heat while replicating the ambiance of a much pricier fireplace.
Heating Capacity
The built-in heater can take the edge off the chill, making it perfect for a small living room.
Flame Effect
The PuraFlame Klaus model looks amazing and works like a dream, creating a highly realistic fireplace experience.
Installation Type
Quick, easy setup with only an electric cord to plug into a standard outlet.
#3

LegendFlame Carl 39" W Electric Fireplace Insert (EF265), Fireplace Heater 750/1500W, Fire Crackling Sound, Remote Control…

Rating
9.7
Size and Dimensions
Heating Capacity
Flame Effect

Most important from
516 reviews

Size and Dimensions
It's a perfect fit and the only manufacturer that shows the required opening dimensions accurately.
Heating Capacity
This unit is classy looking, quiet, and puts out enough heat for a 400 sq.ft. home.
Flame Effect
The realistic flame effect is stunning and the heat output is excellent.
Installation Type
Installation was a breeze. It literally took longer to unpack than to install it.

The LegendFlame Carl 39" W Electric Fireplace Insert (EF265) is designed to fit into an existing fireplace, making it a practical choice for those looking to modernize their living space without the hassle of traditional wood or gas fireplaces. The insert measures 10.39"D x 38.66"W x 26.11"H and includes a life-like resin log, enhancing the visual appeal with its realistic flame effect and multiple brightness settings. The nine different mood light settings provide versatility, making it suitable for various occasions and moods.

The sleek design, featuring a three-sided interior brick wall and clean glass front trim, adds a contemporary touch to any room. The unit is designed for free-standing installation and plugs into a standard 120v 15amp outlet, but it does not support hard-wired installation. A key feature is the adjustable thermostat, which allows you to set the desired temperature, and the remote control facilitates easy operation. The fireplace has a heating capacity suitable for spaces up to 400 sq. ft., making it a great supplemental heat source but not adequate as the main heat source for larger areas.

Safety features include a vent-free design and a powder-coated finish for durability. While the product offers good energy efficiency with a maximum power consumption of 1500 watts, it may not be the best option for those seeking a primary heating solution. The unit weighs 66 pounds and comes with a one-year limited warranty, with customer service readily available for assistance. The LegendFlame Carl 39" W Electric Fireplace Insert (EF265) is a solid choice for those looking to add ambiance and supplemental warmth to their living room with ease and style.

Rating
9.7
Size and Dimensions
Heating Capacity
Flame Effect

Most important from
516 reviews

Size and Dimensions
It's a perfect fit and the only manufacturer that shows the required opening dimensions accurately.
Heating Capacity
This unit is classy looking, quiet, and puts out enough heat for a 400 sq.ft. home.
Flame Effect
The realistic flame effect is stunning and the heat output is excellent.
Installation Type
Installation was a breeze. It literally took longer to unpack than to install it.

Buying Guide for the Best Electric Fireplace Insert For Existing Fireplace

Choosing the right electric fireplace insert for your existing fireplace can transform your space into a cozy and warm environment. Electric fireplace inserts are designed to fit into your existing fireplace opening, providing the ambiance of a real fire without the hassle of wood or gas. To make the best choice, you need to consider several key specifications that will ensure the insert meets your needs and fits your space perfectly.
Size and DimensionsThe size and dimensions of the electric fireplace insert are crucial because they need to fit perfectly into your existing fireplace opening. Measure the height, width, and depth of your fireplace to ensure the insert will fit. Inserts come in various sizes, so you can find one that matches your measurements. If the insert is too small, it may look out of place, and if it's too large, it simply won't fit. Choose an insert that fits snugly for a seamless look.
Heating CapacityHeating capacity is measured in BTUs (British Thermal Units) and determines how much heat the insert can produce. This is important because it affects how well the insert can warm your space. Smaller rooms (up to 400 square feet) typically need an insert with a lower BTU rating (around 4,000-5,000 BTUs), while larger rooms (up to 1,000 square feet) may require a higher BTU rating (around 9,000-10,000 BTUs). Consider the size of the room where the fireplace is located to choose an insert with the appropriate heating capacity.
Flame EffectThe flame effect is what gives the electric fireplace its realistic look. This feature is important for creating the desired ambiance. Some inserts offer basic flame effects, while others provide more advanced options like adjustable flame colors, brightness, and speed. If you want a more realistic and customizable experience, look for inserts with advanced flame effects. If a simple, cozy look is sufficient, a basic flame effect will do.
Installation TypeElectric fireplace inserts can be plug-in or hardwired. Plug-in inserts are easier to install and can be plugged into a standard electrical outlet, making them a good choice for those who want a quick and simple setup. Hardwired inserts require professional installation and are connected directly to your home's electrical system, which can provide a cleaner look with no visible cords. Consider your comfort level with installation and whether you prefer a DIY approach or professional help.
Thermostat and Remote ControlA built-in thermostat allows you to set and maintain a desired temperature, ensuring consistent comfort. This feature is important for energy efficiency and convenience. Many inserts also come with a remote control, allowing you to adjust settings from a distance. If you value ease of use and precise temperature control, look for an insert with a thermostat and remote control. If you prefer manual adjustments, these features may be less critical.
Safety FeaturesSafety features are essential for peace of mind, especially if you have children or pets. Look for inserts with features like overheat protection, which automatically shuts off the unit if it gets too hot, and cool-touch exteriors, which prevent burns. These features help ensure safe operation and reduce the risk of accidents. Prioritize safety features if you have a household with vulnerable individuals or if you plan to use the fireplace frequently.
Energy EfficiencyEnergy efficiency is important for reducing your electricity bills and minimizing environmental impact. Some electric fireplace inserts are designed to be more energy-efficient, using less power to produce the same amount of heat. Look for inserts with energy-saving modes or those that are certified for energy efficiency. If you are conscious about energy consumption and want to save on utility costs, prioritize energy-efficient models.

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