Gas Fireplace Inserts

Upgrade your existing hearth instantly with a gas fireplace insert or realistic gas log set. Choose from high-efficiency direct vent or flexible ventless fireplace inserts available in natural gas and propane to modernize your fireplace.

Empire gas fireplace insert in a traditional masonry fireplace

Choosing the Best Gas Fireplace Inserts: Venting and Efficiency

Gas fireplace inserts are the most effective way to transform an old, drafty wood-burning fireplace into a modern, high-efficiency heating source. Whether you have a traditional masonry firebox or a factory-built zero-clearance fireplace, installing an insert allows you to enjoy the warmth and ambiance of a fire with the flip of a switch - eliminating the mess of ash, soot, and wood storage.

Choosing the Best Gas Fireplace Inserts: Venting Types

When browsing gas inserts for a fireplace, your choice of venting is the most important factor for both performance and installation:

Direct Vent Gas Fireplace Inserts: These are the gold standard for efficiency. They use a sealed combustion system with a dual-liner chimney kit, drawing air from outside and venting exhaust back out. This setup prevents heat loss and ensures superior indoor air quality.

Ventless Gas Fireplace Inserts: Ideal for spaces where chimney venting is difficult, ventless gas inserts offer 99.9% heating efficiency because no heat escapes through a flue. These are excellent for supplemental heating, though we recommend checking your local codes for indoor ventless gas fireplace insert requirements.

Vented Gas Log Fireplace Inserts: If you prioritize the most realistic flame possible, vented gas logs are a popular choice. These operate with an open damper; while they provide less heat than a sealed insert, they offer the classic look of a roaring wood fire.

Fuel Options: Natural Gas vs. Propane

Most of the models we have for sale are available in both fuel configurations. A natural gas fireplace insert is perfect for homeowners with an existing municipal gas line, providing a continuous fuel supply. If you live in a rural area or prefer using a tank, a propane gas fireplace insert delivers the same high-output performance with easy-to-source fuel.

Performance Features: Blowers and Media

To get the most out of your investment, consider a gas fireplace insert with a blower. An integrated fan system helps circulate warm air further into the room, maximizing the unit's heating footprint.

For the aesthetic, you can choose between traditional gas log fireplace inserts featuring hand-painted refractory logs, or contemporary units that use fire glass or stones for a sleek, modern look. We also carry a selection of outdoor gas fireplace inserts designed with stainless steel components to withstand the elements while upgrading your patio or outdoor living space.

Top Brands and Professional Installation

We carry the industry's most trusted names, including Empire Comfort Systems, Majestic and Grand Canyon Gas Logs. Because these units involve gas line connections and specific venting requirements, we strongly recommend that all gas fireplace inserts be installed by a licensed professional to ensure safety and peak performance.

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Monessen Natural Blaze 24-Inch Vent-Free Gas Log

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Frequently Asked Questions about Gas Fireplace Inserts

What is the difference between a direct vent and a ventless gas insert?

The main difference is how they handle exhaust. Direct vent inserts use a sealed dual-liner system to draw fresh air from outside and vent exhaust through your chimney, protecting indoor air quality. Ventless inserts do not require a chimney and are 99.9% efficient because they keep all heat inside the room, though they are subject to local building codes and are not allowed in all localities.

Can I install a gas insert into a zero-clearance (factory-built) fireplace?

Yes, many modern gas fireplace inserts are specifically designed to fit into zero-clearance (ZC) fireplaces. However, it is vital to check the manufacturer’s specifications for each model to ensure it is compatible with the dimensions and airflow requirements of your specific factory-built firebox.

How do I know what size gas insert I need?

To find the right fit, you must measure the height, width (front and back), and depth of your current fireplace opening. Most inserts require a minimum "shroud" or surround size to cover the gap between the unit and the fireplace wall. Always refer to the specific sizing guide provided on our product pages before ordering.

Will a gas fireplace insert work during a power outage?

Yes. Most gas inserts utilize a millivolt ignition or a battery backup system that allows the pilot light and main burner to operate without electricity. Please note that while the fire will provide heat, the integrated blower (fan) will not work without power unless connected to a backup generator.

Is a gas insert better for heating than a gas log set?

If your primary goal is heat, a gas (firebox) insert is the better choice. Complete firebox inserts are sealed, high-efficiency appliances designed to radiate heat into the room. While vented gas log sets offer a beautiful, realistic flame, they are primarily decorative because most of the heat escapes through the open chimney damper.

Does a gas fireplace insert require professional installation?

Yes. For safety, local code compliance, and to maintain your manufacturer’s warranty, all gas fireplace inserts must be installed by a licensed professional. This ensures that gas lines are properly connected and that the venting system (for direct vent models) is safely installed within your chimney.