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Gas Fireplace Inserts

4 Best Gas Fireplace Inserts 2025 in the United States

#1

Winner

9.8 score

Empire Comfort Systems Deluxe 36" Vent-Free Firebox with Flush Face Refractory Liner

Empire Comfort Systems Deluxe 36" Vent-Free Firebox with Flush Face Refractory Liner

Empire Comfort Systems

9.8 score

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The Empire Comfort Systems Deluxe 36" Vent-Free Firebox is designed for those looking to enhance their indoor heating experience without the need for venting. One of its main strengths is its vent-free design, allowing for installation in spaces where traditional vented units would not work, which offers versatile placement options. With a solid heating capacity of 5,118 BTUs, it can comfortably heat areas up to 857 square feet, making it suitable for larger rooms like living areas or bedrooms.

#2
9.6 score

Empire VFD42FB0F Deluxe 42" Vent-Free Flush Gas Firebox

Empire VFD42FB0F Deluxe 42" Vent-Free Flush Gas Firebox

Empire Comfort Systems

9.6 score

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The Empire VFD42FB0F Deluxe 42" Vent-Free Flush Gas Firebox is a vent-free gas fireplace insert, meaning it offers high energy efficiency and can be installed in locations where venting isn't feasible. This flexibility makes it a strong choice for a variety of home settings. Its fully customizable design allows users to tailor the unit to their aesthetic preferences with a range of liners, doors, louvers, frames, and mantels, though these additional components are sold separately.

Customer Highlights

A summary of real customer reviews to highlight what shoppers are saying!
Size and Fit
The lack of included brick panels is a downside; it's important to know which additional components will fit the 42” firebox.
#3
9.3 score

Empire VFDR24LBP MV 6-Piece 24" 34000 BTU Ceramic Fiber Log Set - LP

Empire VFDR24LBP MV 6-Piece 24" 34000 BTU Ceramic Fiber Log Set - LP

Empire Comfort Systems

9.3 score

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The Empire VFDR24LBP MV 6-Piece 24" 34000 BTU Ceramic Fiber Log Set is a solid choice for those looking to add a vent-free gas fireplace insert to their home. With a BTU rating of 34,000, it provides ample heat, making it suitable for living spaces where warmth is needed during colder months. One of its notable strengths is its heavy-duty construction using ceramic fiber logs, which ensures durability and longevity, meaning you won't have to replace parts frequently.

Top 4 Best Gas Fireplace Inserts 2025 in the United States

#1

Winner

9.8 score

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Empire Comfort Systems

Empire Comfort Systems Deluxe 36" Vent-Free Firebox with Flush Face Refractory Liner

BTU Rating: 5118
Vent Type: Vent Free
Fuel Type: Fuel Powered
Size and Fit: 19"D x 35"W x 24"H
Aesthetic Features: Black finish, Contemporary design

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Chosen by 1295 this week

#2

9.6 score

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Empire Comfort Systems

Empire VFD42FB0F Deluxe 42" Vent-Free Flush Gas Firebox

BTU Rating: 4400
Vent Type: Vent Free
Fuel Type: Gas Powered
Size and Fit: 42 inches wide, 19"D x 35"W
Aesthetic Features: Contemporary design, black finish

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#3

9.3 score

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Empire Comfort Systems

Empire VFDR24LBP MV 6-Piece 24" 34000 BTU Ceramic Fiber Log Set - LP

BTU Rating: 34000
Vent Type: Vent Free
Fuel Type: Gas Powered
Ignition System: Millivolt Valve
Size and Fit: 26"D x 24"W x 14"H
Aesthetic Features: Contemporary

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#4

9.1 score

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Empire Comfort Systems

Empire VFDR18LBP MV 5-Piece 18" 28000 BTU Ceramic Fiber Log Set - LP

BTU Rating: 28000
Vent Type: Vent-free
Fuel Type: Propane
Ignition System: Millivolt valve with on/off switch
Size and Fit: 18-inch
Aesthetic Features: Ceramic fiber logs, brown color

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Buying Guide for the Best Gas Fireplace Inserts

Choosing the right gas fireplace insert can transform your living space into a warm and inviting environment. Gas fireplace inserts are designed to be installed into an existing fireplace, providing an efficient and convenient way to heat your home. When selecting a gas fireplace insert, it's important to consider several key specifications to ensure you get the best fit for your needs. Understanding these specifications will help you make an informed decision and enjoy the comfort and ambiance of a gas fireplace insert for years to come.
BTU RatingBTU (British Thermal Unit) rating measures the heat output of the gas fireplace insert. This spec is important because it determines how much heat the insert can produce, which directly affects how well it can warm your space. BTU ratings can range from around 10,000 to over 40,000. For small rooms, a lower BTU rating (10,000-20,000) may be sufficient, while larger rooms or open floor plans may require a higher BTU rating (30,000-40,000). Consider the size of the area you want to heat and choose a BTU rating that matches your heating needs.
Vent TypeThe vent type refers to how the gas fireplace insert expels combustion gases. There are three main types: direct vent, natural vent (B-vent), and vent-free. Direct vent inserts use a sealed system to draw air from outside and expel gases outside, making them highly efficient and safe. Natural vent inserts use the existing chimney to expel gases, but they can be less efficient. Vent-free inserts do not require a chimney or vent, making them easy to install, but they may not be allowed in all areas due to indoor air quality concerns. Choose a vent type based on your installation options and local regulations.
Fuel TypeGas fireplace inserts can be fueled by either natural gas or propane. This spec is important because it affects the installation and operating costs. Natural gas is typically more cost-effective and convenient if you already have a natural gas line in your home. Propane is a good alternative if natural gas is not available, but it may require a storage tank. Consider your home's existing fuel infrastructure and choose the fuel type that is most practical and economical for you.
Ignition SystemThe ignition system determines how the gas fireplace insert is lit. There are two main types: standing pilot and electronic ignition. A standing pilot has a small, continuously burning flame that ignites the main burner when needed. It is reliable but can consume more gas. Electronic ignition systems use a spark or hot surface to ignite the burner only when needed, making them more energy-efficient. Choose an ignition system based on your preference for convenience and energy efficiency.
Size and FitThe size and fit of the gas fireplace insert are crucial to ensure it fits properly into your existing fireplace. This spec includes the dimensions of the insert and the size of the fireplace opening. Measure the height, width, and depth of your fireplace to find an insert that fits snugly. Some inserts come with adjustable panels to accommodate different sizes. Make sure to choose an insert that fits your fireplace opening to ensure proper installation and optimal performance.
Aesthetic FeaturesAesthetic features include the design, finish, and additional decorative elements of the gas fireplace insert. This spec is important because it affects the overall look and feel of your fireplace. Inserts come in various styles, from traditional to modern, with different finishes such as black, bronze, or stainless steel. Some inserts also offer customizable options like decorative logs, glass media, or brick liners. Choose aesthetic features that complement your home decor and personal taste.
Efficiency RatingThe efficiency rating indicates how effectively the gas fireplace insert converts fuel into heat. This spec is important because higher efficiency means more heat output with less fuel consumption, leading to lower operating costs. Efficiency ratings are usually expressed as a percentage, with higher percentages indicating better efficiency. Look for inserts with high efficiency ratings (70% and above) to ensure you get the most heat for your fuel. Consider your heating needs and choose an insert with a high efficiency rating to maximize energy savings.

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