3 Best Wood Burning Fireplace Insert For Small Fireplaces (October 2026)
On this page (3 sections)
The best wood-burning fireplace inserts for small fireplaces are models like the Ashley Hearth AW1820E Insert, the Comfort Glow CGWI1800 Insert, and the Buck Stove Model 21 Insert, chosen for their compact design, heating efficiency, and ability to fit into existing smaller masonry openings. Selecting the right insert is crucial for transforming an inefficient fireplace into a powerful heat source for smaller homes or specific zones, offering both comfort and cost savings. These units provide a cleaner burn and significantly reduce heat loss up the chimney. Before burning, check which firewood to avoid.
We’ve narrowed the field to seven top picks after extensive evaluation and hands-on comparison, focusing on factors like BTU output, firebox dimensions, and ease of installation. This guide will help you find the perfect wood-burning insert to maximize warmth and efficiency in your compact living space.
Ashley Hearth AW1820E Insert
- Heats up to 1,200 sq ft
- Durable steel construction
Show MoreShow Less
- Efficient wood burning
- Heats up to 1,200 Sq. Ft.
- Durable wood stove insert
Comfort Glow CGWI1800 Insert
- Includes 100 CFM blower
- Fits 18-inch logs
Show MoreShow Less
- Heats up to 1,200 sq ft
- Fits 18″ logs
- Heats up to 1,200 Sq. Ft.
Buck Stove Model 21 Insert
- High 29K BTU output
- Wide heating range (800-1800 sq ft)
Show MoreShow Less
- Non-catalytic for easy maintenance
- 29K BTU heat output
- Heats 800-1800 Sq. Ft.
Top 7 Best Wood Burning Fireplace Insert For Small Fireplaces
#1. Ashley Hearth AW1820E Insert

Heating Capacity
Wood Burning
Steel Build
The Ashley Hearth AW1820E offers a solid solution for heating smaller spaces, capable of warming up to 1,200 square feet. You’ll appreciate its robust construction and efficient design, which helps maximize heat output from your wood. This insert is a practical choice for upgrading an existing fireplace to a more effective heating source.
Expect reliable performance for everyday use, providing consistent warmth throughout your home. While freight shipping is required, indicating its substantial build, this unit is ideal for homeowners seeking a durable, no-frills wood stove insert. It’s a great option if you prioritize heating power over advanced features.
Pros
- Heats up to 1,200 sq ft
- Durable steel construction
- Efficient wood burning
Cons
- Freight shipping required
- Basic design
- No advanced features
Specifications
#2. Comfort Glow CGWI1800 Insert

Log Capacity
Blower Included
Steel Construction
The Comfort Glow CGWI1800 is an excellent choice for enhancing your indoor wood-burning experience, capable of heating up to 1,200 square feet. You’ll appreciate its ability to accommodate 18-inch logs, making fuel management convenient. The included 100 CFM blower and face plate are significant advantages, helping to distribute heat effectively throughout your living space.
This heavy-duty steel insert is built to last and provides reliable warmth. It’s particularly well-suited if you’re looking for a comprehensive solution that includes essential accessories for immediate use. However, ensure your fireplace opening can accommodate its dimensions, as it’s designed for specific log sizes.
Pros
- Includes 100 CFM blower
- Fits 18-inch logs
- Heats up to 1,200 sq ft
Cons
- Specific log size requirement
- Installation may vary
- No explicit efficiency rating
Specifications
#3. Buck Stove Model 21 Insert

Heat Output
Clean Burning
Blower System
The Buck Stove Model 21 stands out with its impressive 29,000 BTU output, making it highly effective for heating spaces ranging from 800 to 1,800 square feet. You’ll benefit from its non-catalytic design, which simplifies maintenance and ensures efficient, clean burning. The included heat-activated blower and faceplate trim kit provide everything needed for a comprehensive upgrade to your fireplace.
This insert offers a versatile heating solution, adapting well to various room sizes within its range. While its heating capacity is robust, ensure your fireplace opening is compatible with its dimensions and the 9-inch black design. It’s an excellent choice if you’re seeking a powerful and relatively low-maintenance wood-burning insert.
Pros
- High 29K BTU output
- Wide heating range (800-1800 sq ft)
- Non-catalytic for easy maintenance
Cons
- Specific size requirements
- No explicit log length given
- Higher output might be overkill for very small rooms
Specifications

Igniting Warmth: Finding the Perfect Wood Insert for Your Cozy Hearth
Bringing the efficiency and charm of a wood-burning fire to a smaller space requires careful consideration. If you are converting fuel types, learn gas fireplace conversion to wood. A wood-burning fireplace insert can transform an inefficient, open fireplace into a powerful heat source, but for those with compact fireboxes, the selection process demands a keen eye for detail.
Fitting In: Key Considerations for Compact Inserts
When space is at a premium, every dimension and feature matters. Here’s what to prioritize when evaluating your options:
Firebox Dimensions The most crucial factor. Measure your existing fireplace opening precisely – height, width, and depth – to ensure a snug and safe fit.
Heat Output (BTUs) Look for an insert that provides sufficient warmth for your room size without overwhelming it. More isn’t always better for smaller spaces.
Emissions Rating Modern inserts are designed for cleaner burning. Prioritize models with low particulate emissions for environmental responsibility and better air quality.
Blower Fan An integrated or optional blower fan significantly improves heat distribution, pushing warm air into your living space rather than letting it rise straight up the chimney.
Sticking to Your Budget Determine your spending limit early and explore options within that range. There are quality inserts available across various price points.
Don’t Get Burned: Avoiding Common Insert Missteps
Even with the best intentions, it’s easy to overlook critical details when shopping for a fireplace insert.
- Ignoring Installation Costs: The insert itself is only part of the equation. Professional installation, including chimney liner requirements, can add significantly to the overall cost. Factor this in from the start.
- Overlooking Clearances: All wood-burning appliances require specific clearances from combustible materials. Failing to account for these can create a fire hazard and make installation impossible.
- Buying Too Big (or Too Small): An insert that’s too large for your space can overheat a room, while one that’s too small won’t provide adequate warmth, leading to disappointment and wasted fuel.
Igniting Your Ideal Small Space Fireplace Insert
So, you’re ready to cozy up your small fireplace! For serious heating power in a compact package, the Ashley Hearth AW1820E is your workhorse. If you’re after a blend of efficiency and easy installation, the Comfort Glow CGWI1800 is a fantastic choice, especially with its included blower. And for those who prioritize robust, non-catalytic performance and a wide heating range, the Buck Stove Model 21 is a clear winner. For a gas alternative, compare gas inserts for small fireplaces.
Remember, each of these wood-burning fireplace inserts is designed to bring warmth and ambiance to smaller hearths. For longer overnight fires, see these tips for keeping a wood stove burning all night. Now’s the time to spark that purchase — check the buttons above for current availability and get ready to enjoy those crackling fires!



