What Is a Fireplace Insert and How Does It Work?

A dancing fire adds charm and comfort to any home, but traditional fireplaces often fall short in terms of energy efficiency and heating performance. If you're looking to transform your existing masonry fireplace into a high-efficiency heating system, fireplace inserts offer an ideal solution. In this blog, we’ll explore what a fireplace insert is, how it works, and why it’s becoming an increasingly popular upgrade in homes across Canada and beyond. 

What Is a Fireplace Insert?

A fireplace insert is a self-contained unit that fits into an existing wood-burning fireplace. It essentially converts an open fireplace into a closed combustion system, vastly improving energy efficiency and heat output. Think of it as a fireplace within your fireplace. The insert is installed into the existing cavity and connected to a venting system—dropped down the chimney—to safely expel combustion gases.
Most fireplace inserts feature a sealed firebox, a glass viewing window, and internal heat exchangers/fans or blowers to help circulate warm air throughout the room. You get the visual appeal of a fire without the significant heat loss associated with open hearths.

Did you know: A fireplace insert also seals your chimney, further reducing heatloss even when the unit is not in use.

How Does a Fireplace Insert Work?

A fireplace insert works by improving how heat is generated, retained, and distributed. Here's a breakdown of how each type functions:
 

1. Wood Fireplace Inserts

Wood inserts are essentially modern wood stoves that are installed into a traditional fireplace. You load seasoned firewood into the firebox, ignite it, and close the glass door to seal in the heat. Air enters through an adjustable air intake vent, feeding the fire and controlling burn rate. The result is a longer, cleaner burn that produces substantial radiant and convection heat.
 

2. Gas Fireplace Inserts

Gas inserts operate using natural gas or propane. They feature a sealed combustion system with a direct vent that draws in outside air and expels exhaust gases. Most models are equipped with a thermostat and remote control, making it easy to adjust flame height and temperature. Gas inserts are a convenient, low-maintenance option with a consistent heat output.
 

3. Pellet Fireplace Inserts

Pellet inserts burn compressed wood pellets delivered from a built-in hopper. These inserts are highly efficient, with some models achieving up to 85% efficiency ratings. A motorized auger automatically feeds pellets into the burn pot, while fans circulate warm air throughout the room. Pellet inserts are a great eco-friendly choice, using renewable fuel sources.
 

4. Electric Fireplace Inserts

Electric inserts are the easiest to install and maintain. They plug into a standard electrical outlet and use LCD or LED technology to simulate realistic flames. They also include built-in heaters that can warm up small to medium-sized rooms. While they don’t provide real flames, electric fireplace inserts offer the ambiance and feeling of a fire with the convenience and safety for homes where venting isn’t possible.

Benefits of Fireplace Inserts

Investing in a fireplace insert brings a range of benefits for both comfort and efficiency:
 

• Improved Heat Output: Inserts retain and radiate more heat than open fireplaces.
• Energy Efficiency: Less heat is lost up the chimney, lowering utility costs.
• Cleaner Burning: Especially with gas and pellet models, emissions are reduced.
• Aesthetic Appeal: Modern inserts are sleek, stylish, and elevate the look of your home.
• Safe Operation: Sealed combustion reduces the risk of sparks or backdrafts.

Fireplace Inserts in Canada: What to Know

In colder climates like Canada, heating efficiency is a top priority. That’s why fireplace inserts in Canada have become increasingly popular among homeowners seeking to upgrade outdated hearths. Whether you’re in Ontario, Alberta, British Columbia, or the Maritimes, fireplace inserts can significantly boost your home's comfort during long winter months.
In addition to keeping you warm, Canadian fireplace inserts must meet stringent energy efficiency and safety standards. Look for EPA-certified models that comply with Canadian building codes and provincial energy guidelines.

Why Choose Regency Fireplace Inserts?

When it comes to high-performance and beautifully crafted inserts, Regency fireplace inserts are among the top choices in North America. With over four decades of innovation, Regency has earned a reputation for quality, durability, and design-forward heating solutions.
Regency offers a wide selection of wood, gas, and pellet inserts designed for homes of all sizes and styles. Here’s what sets them apart:
 

• High-Efficiency Ratings: Many Regency inserts exceed EPA standards.
• Clean-Burning Technology: Advanced combustion systems reduce emissions.
• Custom Styling: Choose from a range of faceplates, liners, and trims.
• Smart Controls: Gas models include remote and Wi-Fi options for convenient operation.
• Lifetime Warranty: Peace of mind backed by industry-leading support.

Whether you're modernizing a historic fireplace or looking to supplement your home’s primary heat source, Regency fireplace inserts offer the perfect blend of form and function.

Final Thoughts

Fireplace inserts are a smart, energy-efficient upgrade that transform drafty, outdated fireplaces into powerful home heaters. By sealing off the firebox and improving combustion, these inserts allow homeowners to enjoy the beauty of a fire with far greater performance and safety.
If you’re considering adding a fireplace insert, start by evaluating your existing fireplace, fuel preferences, and heating needs. Whether you're looking for fireplace inserts in Canada or exploring the trusted reliability of Regency fireplace inserts, there's a solution that fits your home perfectly.
Ready to find the right fireplace insert for your space? Explore Regency’s full lineup or visit a local authorized dealer to get expert advice and a customized quote.