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5 Best Gas Fireplace Inserts 2025 in the United States

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#1

Winner

ProCom Vent-Free Universal Ventless Firebox Insert, Model# PC32VFC

The ProCom Vent-Free Universal Ventless Firebox Insert, Model# PC32VFC, offers a compact and versatile solution for those looking to add a fireplace to their home. Its slim profile and zero-clearance installation make it ideal for tight spaces and customizable setups. This insert is compatible with any ventless gas log set, providing flexibility in choosing the right logs for your home.

The unique airflow system enhances heat distribution, making it suitable for heating spaces up to 1800 square feet. The large viewing area adds to the cozy ambiance, creating a focal point in your room. However, it does not include gas logs, which need to be purchased separately, potentially adding to the cost. The product is built in the USA, ensuring quality and reliability, and comes with a 1-year limited warranty for added peace of mind.

While its efficiency rating isn't explicitly mentioned, the ventless design typically ensures higher heat retention and better energy usage. The black finish and decorative sprayed brick liner provide a stylish look, suitable for various home décors. Weighing 69.1 pounds, it's relatively hefty but manageable for installation. This firebox is best suited for living rooms or bedrooms where a gas line is accessible. The fact that it doesn't require batteries simplifies maintenance. This firebox is a good option for those seeking a versatile, aesthetically pleasing, and efficient heating solution without the need for extensive remodeling or venting.

Customer Highlights

A summary of real customer reviews to highlight what shoppers are saying!
BTU Rating
The insert fits well with a 34,000 BTU log set, though space inside is a bit cramped for additional components like a gas shutoff valve.
Size and Fit
The box is easy to frame in, and the frame stays cool while the insert is operating, ensuring safety.
Efficiency Rating
This zero clearance fire box can be touched on all sides even after burning for a while.
#2

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

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.

Another attractive feature is its fully customizable design. Users can choose from various liners, doors, louvers, frames, and mantels, allowing them to create a fireplace that fits their style and decor. The solid construction, highlighted by hem-bent seams, ensures a reliable and efficient unit with minimal visible fasteners.

In terms of aesthetic features, the black finish and contemporary design may appeal to modern homeowners, but aesthetic preferences are subjective. It is important to ensure that this product fits the intended space dimensions and heating needs. If you’re looking for a stylish, flexible fireplace insert that is easy to install and efficient, this unit could be a good choice, provided you are aware of its limitations.

#3

Empire VFD42FB0F Deluxe 42" Vent-Free Flush Gas Firebox

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.

The unit is equipped with hem-bent seams, enhancing its seal and reducing the need for excessive screws and fasteners, potentially simplifying installation and maintaining a sleek appearance. Additionally, it is compatible with certified vent-free burners and log sets, though these are also not included in the initial purchase, adding some extra cost for users who need these components. The unit's size is substantial at 42 inches wide, with a flush front installation that ensures it integrates smoothly with your interior space.

The heat output is relatively modest at 4,400 BTUs, which may be sufficient for supplementary heating but not ideal for larger spaces. The contemporary design and black finish make it a versatile piece for modern interior décor. Weighing 102 pounds, it is reasonably heavy and may require careful handling during installation. This product is best suited for individuals seeking a customizable and efficient fireplace solution for smaller to medium-sized rooms, with the flexibility to install in a variety of home settings without the need for external venting.

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.

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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