Comparison: Best Zero Clearance Fireplace Insert (Updated | Dec 19th)
Dreaming of cozy evenings by the fire but stuck with a tiny space? Zero clearance fireplace inserts are your secret weapon for transforming any room into a warm, inviting retreat without major renovations. These sleek, efficient wonders slide right into existing openings, delivering impressive heat while maximizing style. But with so many options, how do you choose the perfect one? We’ve done the homework for you, testing top models to bring you the ultimate guide to finding the **best zero clearance fireplace insert** that’ll make your home the coziest on the block.
Editor’s Choice
Best for a specific purpose
- Best for dual fuel convenience: Duluth Forge Dual Fuel Ventless Gas Fireplace Insert
- Best for smart thermostat control: Duluth Forge Dual Fuel Ventless Gas Fireplace Insert
- Best for ultra-thin modern design: 72 Inch Electric Fireplace
- Best for smart home compatible: Westinghouse 50 Inch Electric Fireplace Heater
- Best for outdoor stainless steel: Duluth Forge 24
- Best for versatile installation: Giantex 28.5″ Electric Fireplace Insert
- Best for infrared heating technology: Riseon Electric Fireplace Logs Inserts Heater 20-Inch
- Best for ultra-slim integration: Tornivk 72 Inch Electric Fireplace Inserts Ultra-Thin 750/1500W Linear Electric Fireplace Heater Wall Mounted or Recessed Fireplace Electric with Adjustable Multicolor Flame
- Best for fireplace replacement expert: Innoflame 23″ Electric Fireplace Insert
- Best for easy fit log set: PuraFlame 27″ Free Standing Electric Fireplace Log Set Insert
Product Comparison: Best Zero Clearance Fireplace Insert
Dual Fuel Convenience
Duluth Forge Dual Fuel Ventless Gas Fireplace Insert, Remote Control, 6 Fire Logs, Use with Natural Gas or Liquid Propane, 32000 BTU, Heats up to 1500 Sq. Ft., Black
Duluth Forge
The Duluth Forge Dual Fuel Ventless Gas Fireplace Insert offers a powerful heating solution with its 32,000 BTU output, capable of warming up to 1,500 square feet. Its ventless design means no chimney or outside duct is required, making installation simpler. The dual fuel technology allows you to use either natural gas or liquid propane, providing flexibility. The insert features six hand-painted ceramic fiber logs that create a realistic appearance, along with mesh double doors and a sprayed brick liner for an authentic fireplace look. The remote control with LCD screen allows for convenient operation, letting you turn the flame on and off from across the room. With its zero-clearance firebox, this unit can be installed against or recessed into any wall accessible to a gas line, making it versatile for various home layouts.
✓ Reasons to Buy
- Dual fuel flexibility
- High heat output
- No chimney required
- Realistic ceramic logs
- Remote control operation
✗ Reasons Not to Buy
- Heavy at 69.5 lbs
- Requires ceiling clearance
- No thermostat control
Smart Thermostat Control
Duluth Forge Dual Fuel Ventless Gas Fireplace Insert, Thermostat Control, 6 Fire Logs, Use with Natural Gas or Liquid Propane, 32000 BTU, Heats up to 1500 Sq. Ft., Black
Duluth Forge
Similar to its remote-controlled counterpart, the Duluth Forge Dual Fuel Ventless Gas Fireplace Insert with Thermostat Control delivers impressive heating power with 32,000 BTUs capable of warming spaces up to 1,500 square feet. The ventless design eliminates the need for a chimney or outside duct, simplifying installation. What sets this model apart is its convenient thermostat control, which automatically cycles the fireplace on and off to maintain your desired room temperature, providing consistent comfort without manual adjustment. The insert features six hand-painted ceramic fiber logs that create a realistic appearance, along with mesh double doors and a sprayed brick liner for an authentic fireplace look. The dual fuel technology allows you to use either natural gas or liquid propane, providing flexibility based on your home’s existing infrastructure.
✓ Reasons to Buy
- Thermostat control feature
- Dual fuel flexibility
- High heat output
- No chimney required
- Realistic ceramic logs
✗ Reasons Not to Buy
- Heavy at 69.5 lbs
- Requires ceiling clearance
- No remote control included
Ultra-Thin Modern Design
72 Inch Electric Fireplace, Ultra-Thin Fire Places Electric Fireplace Inserts Recessed and Wall Mounted with Remote Control & Touch Screen, 750W/1500W Fireplace Electric Heater with Timer, Multi-Flame
VENDORZ
This 72-inch Ultra-Thin Electric Fireplace from VENDORZ combines modern aesthetics with functionality. At just 3.2 inches thick, it’s 20% thinner than similar products, creating a sleek profile that enhances any room’s decor. The dark-colored frame perfectly accentuates the unique flames, while the temperature-resistant tempered glass ensures safety and durability. This electric fireplace offers customizable ambiance with 12 flame colors, 12 crystal bed colors, 5 flame speeds, and adjustable brightness settings. The ETL-certified unit features auto-heat and overheat protection functions for safety and comfort, with adjustable 750W and 1500W modes for both warmth and energy efficiency. The included remote control allows for convenient operation of all functions, including a 1-8 hour timer. Suitable for approximately 400 square feet, this fireplace can be either recessed into a wall or wall-mounted, offering installation flexibility.
✓ Reasons to Buy
- Ultra-thin design
- Multiple flame colors
- Safe overheat protection
- Remote control operation
- Easy installation options
✗ Reasons Not to Buy
- Limited heating area
- Requires electricity
- Not suitable for larger spaces
Smart Home Compatible
Westinghouse 50 Inch Electric Fireplace Heater, Compatible with Alexa & Google Home, Wall Mount or in-Wall Recessed Fireplace Insert, 24 Hour Timer, Color Changing Flames, 750W/1500W Indoor Heater
Westinghouse
The Westinghouse 50 Inch Electric Fireplace Heater combines modern technology with elegant design to create a stunning focal point for any room. With customizable flame colors, brightness levels, and burning speeds, you can create the perfect ambiance for any occasion. The interchangeable faux log and crystal ember bed sets add versatility to your decor. This fireplace offers personalized comfort with adjustable heater settings and a built-in thermostat ranging from 62F to 82F. Compatible with Alexa and Google Home, it seamlessly integrates into your smart home ecosystem. The unit can be wall-mounted or recessed for a clean, built-in look that complements various interior styles.
✓ Reasons to Buy
- 144 color combinations
- Smart home compatible
- Adjustable thermostat
- Multiple mounting options
- Realistic flame effects
✗ Reasons Not to Buy
- Requires dedicated circuit
- Limited heating capacity
- Expensive compared to alternatives
Outdoor Stainless Steel
Duluth Forge 24,000 BTU Vent Free Stainless Steel Outdoor Gas Fireplace Insert with Fire Glass Media and Log Set, Manual Control, Natural Gas, Assembled in The USA
Duluth Forge
The Duluth Forge 24,000 BTU Vent Free Outdoor Gas Fireplace Insert delivers exceptional warmth and style to your outdoor living space. Proudly assembled in the USA with high-quality materials, this fireplace features a 304 Stainless Steel Sloped H-Burner that provides optimal heat output and performance. The manual control allows you to customize heat settings for greater comfort and ambiance. Its space-saving design doesn’t compromise on beauty, featuring stunning fire glass media and a log set that creates an impressive visual display. Safety is paramount with the Battery Assisted Piezo ignition and Built-in pilot oxygen depletion sensor that automatically shuts down the heater if carbon monoxide or lack of oxygen is detected.
✓ Reasons to Buy
- High heat output
- Made in USA
- Stainless steel construction
- Safety features included
- Stylish fire glass media
✗ Reasons Not to Buy
- Outdoor use only
- Requires gas line installation
- No remote control option
Versatile Installation
Giantex 28.5″ Electric Fireplace Insert, Wall Recessed/Mounted, Freestanding Fireplace with Remote Control, 3 Color Adjustable Flames, 2 Modes Heat, 8 H Timer, 5 Brightness Settings, 750/1500W Heater
Giantex
The Giantex 28.5″ Electric Fireplace Insert offers a perfect blend of functionality and aesthetics for those seeking a cozy atmosphere without the hassle of traditional fireplaces. Its realistic flame effect, viewable through tempered glass, comes with three color options and five brightness levels, allowing you to customize the ambiance to your preference. The fireplace features an intelligent thermostat system with temperature settings from 62℉ to 82℉ and a convenient timer function. With two heat settings (750W and 1500W), it provides efficient warmth without emissions. ETL certified and equipped with overheat protection, this fireplace ensures safety while enhancing your living space with its versatile installation options.
✓ Reasons to Buy
- Multiple flame colors
- Adjustable temperature settings
- Built-in timer function
- ETL certified safe
- Versatile installation options
✗ Reasons Not to Buy
- Smaller heating area
- Basic remote control
- Limited flame customization
Infrared Heating Technology
Riseon Electric Fireplace Logs Inserts Heater 20-Inch, Remote Controller Fireplace Heater, Adjustable Flame Colors, Realistic Fake firewood Flame, Overheat Protection, Timer, Thermostat, 1500W Black
Riseon
The Riseon Electric Fireplace Logs Insert offers a perfect blend of functionality and aesthetics for your home. This 20-inch heater utilizes advanced quartz tube infrared heating technology, delivering up to 1500W of power to quickly warm your space. The realistic resin logs create an authentic birch appearance with 5 flame options and 5 air speed adjustments, allowing you to customize the ambiance. Safety features include overheat protection that activates at 230°F and a quiet sleep mode. With no installation required and the ability to operate the flame function independently, this versatile fireplace insert provides year-round comfort and style for any room.
✓ Reasons to Buy
- Realistic flame effects
- Powerful infrared heating
- Multiple flame options
- Independent flame operation
- Built-in safety features
✗ Reasons Not to Buy
- Limited to 20-inch size
- Remote not included in base price
Ultra-Slim Integration
Tornivk 72 Inch Electric Fireplace Inserts Ultra-Thin 750/1500W Linear Electric Fireplace Heater Wall Mounted or Recessed Fireplace Electric with Adjustable Multicolor Flame,Timer
Tornivk
Transform your living space with the Tornivk 72 Inch Ultra-Thin Electric Fireplace Insert. Measuring just 3.2 inches thick, this sleek fireplace creates a seamless, modern look that virtually disappears into your wall. The installation process is straightforward with included mounting hardware, allowing you to achieve a professional look without hiring contractors. Customize your ambiance with 12 vibrant flame colors, adjustable speed, and 5 brightness levels. The dual heating system offers both 750W and 1500W settings for efficient zone heating, while the timer function helps conserve energy. With UL certification and overheat protection, this fireplace combines stunning aesthetics with peace of mind.
✓ Reasons to Buy
- Ultra-slim 3.2-inch profile
- 12 flame color options
- Easy wall mounting system
- Dual heating modes
- Timer for energy savings
✗ Reasons Not to Buy
- Large size may not fit all spaces
- Touchscreen controls may be confusing
Fireplace Replacement Expert
Innoflame 23″ Electric Fireplace Insert, Fireplace Heater with Remote, Adjustable 4 Flame Brightness, Log Set, Low Noise, 8H Timer, Overheating Protection, 1400W (23″ X 19 3/4″)
Innoflame
The Innoflame 23″ Electric Fireplace Insert is the perfect solution for replacing outdated fireplaces. Designed to fit openings of W 23″ x H 19 3/4″, it seamlessly integrates into TV stands, mantels, or other furniture. This powerful heater provides 5000 BTU of warmth, effectively heating rooms up to 400 square feet. The adjustable flame brightness creates a realistic dancing flame effect that adds ambiance without the mess of a traditional fireplace. With a built-in thermostat allowing temperature settings from 64˚F to 82˚F and convenient remote control operation, this unit combines functionality with ease of use. CSA/UL certified with dual safety features, it’s both reliable and safe for your home.
✓ Reasons to Buy
- Designed to replace old fireplaces
- Heats up to 400 sq ft
- Remote control operation
- CSA/UL certified safety
- Adjustable flame brightness
✗ Reasons Not to Buy
- Specific size requirements
- Limited flame color options
Easy Fit Log Set
PuraFlame 27″ Free Standing Electric Fireplace Log Set Insert, 750W/1500W Heater, 6 Flame Colors with 5 Brightness, Crackling Sound, Remote Control
PuraFlame
Enhance your home with the PuraFlame 27″ Free Standing Electric Fireplace Log Set Insert. This versatile unit is designed to fit most existing fireplace openings—simply place it in and plug it in to enjoy instant warmth and ambiance. Choose from 6 flame colors with 5 brightness levels, complemented by realistic crackling sounds that mimic a traditional wood-burning fireplace. The heater offers 750W and 1500W settings to warm rooms up to 400 square feet, with or without the flame effect. The thermostat can be set from 60 to 82℉, while the timer function allows for 0.5 to 9 hours of operation. The clear LED display makes adjusting settings effortless, ensuring a perfect balance of comfort and style.
✓ Reasons to Buy
- Easy installation
- 6 flame color options
- Realistic crackling sound
- Thermostat control
- Timer function
✗ Reasons Not to Buy
- Not for primary heating
- Limited to 400 sq ft coverage
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon.com at the time of purchase will apply to the purchase of this product.
Buying Guide
FAQs
What is a zero clearance fireplace insert?
A zero clearance fireplace insert is designed to be installed directly into existing fireplaces or tight spaces without requiring additional clearance to combustible materials. It provides a safe and efficient heating solution while maintaining a sleek, built-in look. These inserts are ideal for modern homes with limited space.
What features should I prioritize in a zero clearance insert?
Look for high heating efficiency (measured in BTUs), adjustable flame settings, and a realistic log or ember bed. Optional features like remote controls, thermostats, and blower fans can enhance convenience and heat distribution. Ensure the insert is compatible with your home’s venting system.
How do electric and gas zero clearance inserts compare?
Electric inserts are easy to install, energy-efficient, and require no venting, making them ideal for apartments. Gas inserts offer more realistic flames and higher heat output but need proper venting and gas lines. Consider your budget, installation constraints, and heating needs when choosing.
Are zero clearance inserts energy-efficient?
Yes, many zero clearance inserts are designed for high efficiency, with some models converting over 80% of energy into heat. Electric inserts are particularly efficient since they don’t lose heat through venting. Gas inserts also offer good efficiency but may lose some heat through the chimney.
What size insert should I buy for my space?
Measure the width, height, and depth of your existing fireplace or installation space to ensure a proper fit. Consider the square footage of the room you want to heat—larger rooms may need higher BTU output. Always check the manufacturer’s sizing guidelines for optimal performance.
How difficult is the installation process?
Electric inserts are typically DIY-friendly, requiring only a standard outlet and minimal assembly. Gas inserts may require professional installation to handle venting and gas line connections. Always follow the manufacturer’s instructions and local building codes for safety.
What are the maintenance requirements?
Electric inserts need occasional dusting and bulb replacements for the flame effect. Gas inserts require annual inspections to check for leaks, clean the vents, and ensure proper operation. Regular maintenance ensures safety and longevity.
Are zero clearance inserts worth the investment?
They offer excellent value by combining aesthetics, safety, and efficient heating. While initial costs vary, the long-term energy savings and convenience often justify the expense. Choose a model with features that align with your needs for the best return on investment.