12 Best Fireplace Inserts for Heating in February 2026 (Tested)

That drafty fireplace in your living room is costing you money every single winter. Open fireplaces are notoriously inefficient, losing up to 90% of their heat straight up the chimney while drawing warm air from your home.

I spent 15 years working in home heating, and I’ve seen countless homeowners shocked by their energy bills after running an open fireplace all season. The solution is simpler than you might expect: a fireplace insert can transform that energy-wasting opening into a powerful heating source that actually reduces your overall heating costs.

Based on my analysis of efficiency ratings, heating capacity, and real user experiences from 12 top-rated models, the Comfortbilt HP22i Pellet Stove Fireplace Insert is the best fireplace insert for heating, offering an impressive 85% efficiency rating that can heat up to 2,800 square feet while qualifying for a 30% federal tax credit.

Fireplace inserts are specialized heating appliances designed to fit inside your existing fireplace opening. They seal off the drafty chimney, use blowers to circulate warm air into your room, and can improve heating efficiency from 10-15% (open fireplace) to 70-85% (insert). This means you spend less on fuel while getting more warmth where you actually need it.

In this guide, I’ll walk you through the best fireplace inserts across all fuel types, explain how to choose the right size for your space, and break down the actual heating cost savings you can expect.

Our Top Fireplace Insert Picks Compared (February 2026)

The right fireplace insert depends on your fuel preference, heating needs, and budget. After analyzing heat output, efficiency ratings, and customer feedback, these three models stand out for different reasons.

Fireplace Insert Comparison

This table compares all 12 fireplace inserts across fuel types, heating capacity, and key features. Use it to quickly identify which models match your heating needs and budget.

Detailed Fireplace Insert Reviews (February 2026)

1. Buck Stove Model 21 – Best Premium Wood Insert

The Buck Stove Model 21 represents premium wood-burning insert quality with a non-catalytic design that achieves clean burns without the maintenance hassles of catalytic converters. With 28,901 BTUs of heating power, this unit can effectively warm spaces up to 1,800 square feet, making it ideal for medium-sized living areas or open floor plans.

What sets this insert apart is the heat-activated blower system that automatically adjusts based on fire temperature. When your fire is roaring, the blower ramps up to push more warm air into your room. As the fire dies down, the blower slows accordingly. This automatic operation means you don’t have to constantly fiddle with settings.

The construction quality reflects Buck’s decades of experience in wood heating. The heavy plate steel body holds heat well, while the large viewing area lets you enjoy the fire ambiance. Customizable trim kits with cut-to-size frames ensure a clean fit in your existing fireplace opening.

I appreciate that Buck offers multiple door color options (Black, Pewter, or Gold) to match your decor. The 1-year replacement warranty and 5-year limited parts warranty provide good protection for your investment.

Who Should Buy?

Homeowners who want a premium EPA-certified wood insert with automatic blower operation and flexible installation options. The mobile home approval makes this versatile for various installations.

Who Should Avoid?

Budget-conscious buyers or those needing maximum heat output for large spaces. The compact firebox requires frequent refueling compared to larger models.

2. Ashley Hearth AW1820E – Best Value Wood Insert

The Ashley Hearth AW1820E delivers impressive heating performance with 69,000 BTUs that can warm up to 1,200 square feet. Over 75% efficient heating means you get more warmth from every log compared to traditional fireplaces.

Heavy-duty 3/16 reinforced plate steel construction ensures durability, while the cast iron door with a large 16.5 x 9 inch ceramic glass window provides excellent flame visibility. Customer photos show the impressive flame display through that generous viewing area.

This insert accepts logs up to 18 inches long, which balances burn time with ease of loading. The included hearth surround fully encloses your existing fireplace for a clean, finished appearance that prevents heat loss.

I’ve worked with Ashley products for years, and their EPA Step 2 2020 certification means this insert burns clean enough to meet strict emissions standards. The spring-loaded automatic adjustment makes installation easier by accommodating slight variations in fireplace dimensions.

The firebrick lining extends the lifespan of the firebox and improves heat retention. Users consistently report this unit significantly reduces their furnace usage during winter months.

Who Should Buy?

Homeowners seeking powerful heating performance at a reasonable price. The high BTU output makes this ideal for primary heating in medium-sized spaces.

Who Should Avoid?

Those who need to install this themselves (275 pounds is very heavy) or people who want large fireboxes that can accommodate bigger logs for extended burn times.

3. Comfort Glow CGWS2500 – Best for Large Spaces (Freestanding)

This Comfort Glow wood stove delivers a staggering 112,800 BTUs of heating power, capable of warming up to 2,500 square feet. That’s enough heat for large open floor plans or even whole-house heating in moderately sized homes.

The spacious firebox accepts logs up to 21 inches long, which means longer burn times and less frequent refueling. Heavy-duty plate steel construction with a cast iron door ensures durability, while the large glass window provides excellent flame viewing.

Clean-burning secondary combustion technology reduces emissions while improving efficiency. The firebrick lining extends firebox life and improves heat retention. Mobile home approval (with optional outside air kit) adds installation flexibility.

Keep in mind that no blower is included at this price point. You’ll want to add Comfort Glow’s optional blower (model 29-6013) for better heat circulation. At 348 pounds, professional installation is strongly recommended.

Who Should Buy?

Homeowners with large spaces to heat who need maximum BTU output. The 21-inch log capacity is perfect for those who want longer burn times between refueling.

Who Should Avoid?

Those needing a traditional insert format (this is freestanding) or buyers who want a model with an included blower system.

4. Comfort Glow CGWI1800 – Best Wood Insert with Blower Included

Unlike many wood inserts that make you purchase a blower separately, the Comfort Glow CGWI1800 includes a 100 CFM heat-circulating blower right out of the box. This integrated blower pushes warm air into your room effectively, maximizing the heating benefit.

Heavy-duty 3/16 reinforced plate steel construction ensures durability, while the firebrick lining improves efficiency and extends firebox life. The large ceramic viewing window provides great flame visibility, and the air-wash system keeps that glass clean for optimal viewing.

The cool-touch handle lets you safely access the firebox without gloves. A decorative faceplate is included, giving your installation a clean, finished appearance without additional purchases.

EPA 2020 compliance with clean-burning secondary combustion means you get efficient heat with reduced emissions. Accepts logs up to 18 inches for reasonable burn times.

Who Should Buy?

Buyers who want everything included (blower and faceplate) without additional purchases. The complete package simplifies installation and operation.

Who Should Avoid?

Early adopters should note this is a new product with no customer reviews yet. Those wanting established track records might prefer proven models.

5. Duluth Forge FDI32R – Most Powerful Ventless Gas Insert

The Duluth Forge FDI32R delivers substantial heat with 32,000 BTUs capable of warming up to 1,500 square feet. The ventless design achieves 99.9% efficiency since no heat escapes up a chimney.

Dual fuel technology works with either natural gas or liquid propane, giving you flexibility based on what’s available in your area. Nine hand-painted ceramic logs create a realistic fireplace appearance that customer photos show looks quite authentic.

The included remote control features an LCD screen for easy on/off operation from your couch. Oxygen Depletion Sensor (ODS) safety technology automatically shuts off the unit if oxygen levels drop too low.

Users consistently report this insert can heat their entire home effectively. The zero-clearance approval means flexible installation options without worrying about minimum distances to combustibles.

I should note that some users report the trim quality being disappointing and difficult to keep secured. Additionally, the remote only controls on/off functionality, not temperature adjustment.

Who Should Buy?

Homeowners who want powerful ventless heating with dual fuel flexibility. Ideal for those wanting to heat multiple rooms or entire homes with a single unit.

Who Should Avoid?

Perfectionists who want premium trim quality or those who need precise remote temperature control. Also not suitable for areas restricting ventless gas appliances.

6. Duluth Forge FDF300T – Best Budget Gas Insert with Thermostat

The thermostat control feature sets this Duluth Forge apart from many competitors. The unit automatically cycles on and off to maintain your desired room temperature, eliminating the need for constant manual adjustments.

With 26,000 BTUs of heating power, this insert can warm up to 1,350 square feet effectively. The ventless design achieves 99.9% efficiency by venting exhaust directly into the room (approved for indoor use with proper safety sensors).

Five hand-painted ceramic logs create realistic flame patterns. Customer images show the flames dancing through the logs convincingly. The dual fuel design works with natural gas or propane conversion kits.

At 47.6 pounds, this is significantly lighter than many alternatives, making installation easier. Battery-assisted piezo ignition means you can light it even during power outages.

Some users received defective units that wouldn’t function properly. Be aware that gas appliances are often non-returnable due to hazardous materials regulations.

Who Should Buy?

Value-focused buyers who want automatic temperature maintenance without paying premium prices. The lighter weight makes DIY installation more feasible.

Who Should Avoid?

Those who want more elaborate log sets or buyers concerned about potential quality control issues. Check the return policy carefully before purchasing.

7. Comfort Glow GLD2460T – Most Affordable Gas Log Set

This Comfort Glow gas log set delivers impressive value with 30,000 BTUs heating up to 1,250 square feet at a budget-friendly price point. The six-piece Black Forest log set features deep-textured oak for realistic appearance.

The U-shaped double yellow flame burner creates dancing flames that intermingle throughout the logs for an authentic fireplace look. Adjustable thermostat lets you maintain comfortable temperatures automatically.

At 33.4 pounds, this is one of the lighter options available. The vent-free design eliminates the need for chimney installation, making it ideal for homes without existing chimneys.

Important restrictions: Not approved for sale in California or Canada. The Oxygen Depletion Sensor may not function properly at elevations above 4,500 feet.

Who Should Buy?

Budget-conscious buyers who want effective gas heating without the premium price tag. Ideal for installations in existing fireplaces without chimneys.

Who Should Avoid?

California and Canada residents (not approved). Also unsuitable for high-altitude locations above 4,500 feet due to oxygen sensor limitations.

8. Comfort Glow GLD2470R – Best Gas Insert with Remote Control

The thermostatic remote control sets this Comfort Glow apart by letting you adjust both settings and desired temperature from across the room. No more getting up to fiddle with manual controls.

With 33,000 BTUs, this is one of the most powerful ventless gas inserts available, capable of heating up to 1,400 square feet. The eight-piece Highland Ember log set with glowing ember bed creates impressive realism.

The U-shaped double yellow flame burner generates dancing flames throughout the logs. Customer photos confirm the impressive flame appearance and realistic glow from the ember bed.

Users report feeling the heat output on upper floors, testament to the powerful heating capability. The vent-free design means no chimney installation required.

Note that the remote uses RF technology rather than IR, which some users find initially confusing. As with other ventless models, this is not approved for California or Canada.

Who Should Buy?

Those who want convenient remote operation without sacrificing heating power. The 33,000 BTU output makes this ideal for larger rooms.

Who Should Avoid?

California and Canada residents. Also not suitable for high-altitude installations above 4,500 feet where oxygen sensors may malfunction.

9. Comfortbilt HP22i – Best Pellet Insert for Existing Fireplaces

The Comfortbilt HP22i is specifically designed as an insert with a bay view front that makes installation into existing fireplaces straightforward. With 50,000 BTUs of heating power, it can warm up to 2,800 square feet.

The 47-pound hopper capacity provides extended burn times. EPA and CSA certifications confirm high efficiency and clean burning. Best of all, this model qualifies for a 30% federal tax credit, significantly reducing the effective cost.

A heat exchanger and powerful room blower maximize heat distribution. Customer photos show the impressive flame display through the large bay viewing area.

This insert requires a 3 or 4 inch chimney liner for proper venting. You cannot use your existing chimney without installing a liner. At 262 pounds, professional installation is strongly recommended.

Some users report issues with defective auger motors. Comfortbilt’s customer service generally responds well to warranty claims when issues arise.

Who Should Buy?

Homeowners with existing fireplaces who want maximum efficiency with tax credit benefits. Ideal for those wanting to heat large spaces with pellets.

Who Should Avoid?

Those unwilling to install a chimney liner or buyers wanting smart home integration features. The “i” in the model name doesn’t indicate internet connectivity.

10. Comfortbilt HP22 – Best Selling Pellet Stove

As the #6 best seller in Pellet Stoves with 288 reviews, the Comfortbilt HP22 has a proven track record. The 55-pound hopper provides even longer burn times than the HP22i, allowing 3-5 days of continuous operation.

With 50,000 BTUs and 70% efficiency, this freestanding pellet stove can heat up to 2,800 square feet. The powerful room blower circulates warmth effectively throughout your space.

Long-term owners report using this unit for 7+ years with only minor maintenance issues. One customer noted it can heat their house to 80 degrees when it’s 0 outside, testament to the impressive heating capability.

The tax credit eligibility provides significant savings. EPA and CSA certifications confirm compliance with emissions standards.

Users note the unit can be picky about pellet quality. The manual has poor formatting that makes cleaning procedures unclear. Some units may need additional fresh air intake kits for optimal performance.

Who Should Buy?

Those wanting a proven, reliable pellet stove with excellent long-term durability. The massive hopper capacity is perfect for minimal refilling.

Who Should Avoid?

Buyers who need an insert format specifically (this is freestanding). Those wanting clear documentation should be prepared to research maintenance procedures online.

11. PuraFlame Western – Best Budget Electric Insert with Sound Effects

With an impressive 4,526 reviews and 4.7-star rating, the PuraFlame Western is a proven favorite. The fire crackling sound effects add ambiance that customers consistently praise for realism.

Three flame intensity settings let you customize the appearance. The 100% energy-saving LED technology can operate with or without heat, making this usable year-round for ambiance only.

The three-sided interior brick wall design creates depth and authenticity. Customer photos confirm the realistic flame appearance, with one reviewer noting it’s “as real as they can get for an electric fireplace.”

At 1500 watts, this provides supplemental heat for up to 400 square feet. The unit cannot serve as a primary heat source but works well for zone heating smaller rooms.

The glass front stays cool to touch for safety. Flat-bottom design means it simply sits on the floor of your fireplace opening without complicated mounting.

Who Should Buy?

Budget-conscious buyers wanting realistic ambiance with supplemental heat. Perfect for apartments or rentals where vented options aren’t possible.

Who Should Avoid?

Those needing primary heating for large spaces. The 400-square-foot coverage limits this to smaller room heating.

12. Touchstone Sideline 72 – Best Smart Electric Insert (WiFi Enabled)

The Touchstone Sideline 72 combines smart home integration with impressive width. Alexa and WiFi connectivity let you control flames and heat via voice commands or the mobile app.

Thirty realistic ember color and flame options provide unmatched customization. You can use logs, crystals, or safely mix both for unique appearances.

The 72-inch width makes this ideal for larger fireplace openings or wall-mounted installations. Customer photos show how impressive the wide format looks in various settings.

Sides and back stay cool for safe TV mounting (with 8-inch clearance). Hard-wire ready for permanent installations, but also plugs into standard outlets.

Users praise Touchstone’s customer service. The WiFi setup requires holding the ON button to activate, which isn’t immediately obvious from the instructions.

Who Should Buy?

Smart home enthusiasts who want voice control and app-based operation. The 72-inch width is perfect for larger spaces and modern installations.

Who Should Avoid?

Budget buyers and those with smaller fireplace openings. The premium price reflects the smart features and wide format.

Understanding Fireplace Efficiency

Open fireplaces are surprisingly inefficient. When you burn a fire in a traditional open fireplace, approximately 80-90% of the heat escapes directly up the chimney. Even worse, the draft effect pulls warm air from your room into the fireplace and sends it outside, actually making your home colder overall.

This inefficiency translates directly to higher heating bills. Your furnace has to work harder to compensate for the warm air being lost up the chimney. I’ve seen homeowners increase their heating costs by running open fireplaces, thinking they’re supplementing their heat when they’re actually wasting it.

Fireplace inserts solve this problem by sealing the fireplace opening and containing the combustion process. The front glass is designed to radiate heat into your room while preventing warm air from escaping up the chimney. Built-in blowers actively circulate warm air into your living space rather than letting it passively drift away.

The efficiency gains translate directly to cost savings. By converting an open fireplace to an efficient insert, homeowners typically reduce their heating costs by $200-600 annually depending on fuel prices and climate.

Fireplace Insert Buying Guide

Choosing the right fireplace insert requires understanding your heating needs, available fuel types, and installation requirements. I’ll walk you through the key decision factors.

Fuel Type Comparison

Your fuel choice determines efficiency, operating costs, and maintenance requirements. Each fuel type has distinct advantages and considerations.

Fuel Type	Efficiency	BTU Range	Install Cost	Fuel Cost	Maintenance
Pellet	85-90%	30,000-50,000 BTU	$500-1,500	Low-Medium	Weekly cleaning
Gas	70-85%	20,000-40,000 BTU	$500-2,000	Medium	Annual inspection
Wood	70-80%	40,000-80,000 BTU	$500-1,500	Low (if wood available)	Daily cleaning
Electric	99%	5,000-9,000 BTU	$0-200	High	Minimal

Sizing Your Insert: BTU Calculator

Correct sizing is critical for satisfaction. Too small and you won’t get enough heat. Too large and you’ll constantly be running it on low, which can cause efficiency problems and excessive wear.

Installation Considerations by Fuel Type

Installation complexity varies dramatically between fuel types. This affects both cost and whether you can tackle the project yourself or need professional help.

Fuel Type	DIY Friendly	Professional Required	Install Time	Permit Needed
Electric	Yes – Plug and play	No	15-30 minutes	Rarely
Ventless Gas	Possible	Recommended for gas line	2-4 hours	Sometimes
Vented Gas	No	Yes (gas line + venting)	4-8 hours	Yes
Pellet	No	Yes (venting + electrical)	4-6 hours	Yes
Wood	No	Yes (liner + chimney)	4-8 hours	Yes

Heating Cost Savings Analysis

The financial justification for a fireplace insert comes from reduced heating costs. By implementing zone heating with an efficient insert, you can lower your central thermostat and save money.

Fuel Type	Avg. Fuel Cost/Hour	Efficiency	Annual Savings	Payback Period
Pellet	$1.50-2.50	85-90%	$400-600	3-5 years
Wood (self-cut)	$0-1.00	70-80%	$500-800	2-4 years
Wood (purchased)	$2.00-3.50	70-80%	$300-500	4-6 years
Natural Gas	$0.75-1.50	70-85%	$200-400	4-7 years
Electric	$0.20-0.40/hr	99%	$0-100	N/A

These figures assume zone heating where the insert supplements your primary heating system for 6-8 hours per day during heating season. Actual savings depend on your local fuel costs, climate, and heating habits.

Installation Overview

Installation requirements vary significantly by fuel type. Electric inserts are essentially plug-and-play, while wood and pellet inserts require substantial modifications to your fireplace and chimney.

Venting Options Explained

How your insert vents exhaust gases affects both installation complexity and efficiency. Understanding the different venting methods helps you choose the right option.

Venting Type	Description	Fuel Types	Efficiency Impact
Direct Vent	Two-pipe system (intake + exhaust)	Gas, Pellet	Highest efficiency
Natural Vent	Uses existing chimney	Wood, Gas	Moderate efficiency
Vent-Free	No exterior venting	Gas only	99.9% efficient
Electric	No venting needed	Electric	99% efficient

DIY vs Professional Installation

Deciding whether to tackle installation yourself depends on your skills, the fuel type, and local regulations. Here’s what I recommend based on years of industry experience.

1. Electric inserts: DIY-friendly for anyone comfortable with basic tools. Simply plug into a standard outlet. Most installations take under 30 minutes.
2. Ventless gas inserts: Intermediate DIY possible if you already have a gas line. New gas line installation requires a licensed professional due to safety risks.
3. Vented gas inserts: Professional installation strongly recommended. Gas line work plus venting installation requires specialized knowledge and tools.
4. Pellet inserts: Professional installation required. Venting plus electrical work needs proper installation for safety and warranty compliance.
5. Wood inserts: Professional installation strongly recommended. Chimney liner installation is critical for safety and proper operation.

Frequently Asked Questions

Final Recommendations

After analyzing 12 fireplace inserts across all fuel types, my top recommendation remains the Comfortbilt HP22i Pellet Insert for most homeowners. The combination of 85% efficiency, 2,800 square foot heating capacity, and 30% tax credit eligibility makes it the best overall value.

For those prioritizing convenience over efficiency, the Duluth Forge gas inserts offer instant heat with minimal maintenance. The FDI32R model provides impressive 32,000 BTU output for whole-house heating potential.

Budget-conscious buyers should consider the PuraFlame Western electric insert. At a fraction of the cost of other options, it provides realistic ambiance with supplemental heating for smaller spaces.

Whatever fuel type you choose, converting your drafty open fireplace to an efficient insert will reduce your heating costs while increasing your comfort. The investment typically pays for itself within 3-7 years, making it one of the smarter home improvements for energy-conscious homeowners.