Comparison: Best Fireplace Inserts Gas (Updated | Dec 16th)
Whether you’re looking to slash energy bills or simply want the ambiance of a real fire without the hassle, we’ve done the homework for you. Our expert team has tested and ranked top-performing models, comparing everything from heat output to installation ease. Get ready to discover the perfect insert that’ll turn your living room into the warm, inviting space you’ve always dreamed of—without breaking the bank.
Editor’s Choice
Best for a specific purpose
- Best for powerful dual fuel: Duluth Forge Dual Fuel Ventless Gas Fireplace Insert
- Best for compact dual fuel: Duluth Forge Dual Fuel Ventless Gas Fireplace Insert
- Best for realistic oak logs: Duluth Forge DLS-24R-2 Dual Fuel Ventless Fireplace Logs Set with Remote Control
- Best for efficient red oak: Duluth Forge Split Red Oak Ventless Log Set – 18 Inch
- Best for thermostat controlled: Duluth Forge Dual Fuel Ventless Gas Fireplace Insert
- Best for all-in-one mantel: Duluth Forge Dual Fuel Ventless Gas Fireplace with Mantel – 32
- Best for highland ember glow: Comfort Glow Vent Free Gas Fireplace Log Insert with Remote
- Best for premium split oak: Duluth Forge DLS-30R-1 Dual Fuel Ventless Fireplace Logs Set with Remote Control
- Best for black forest style: Comfort Glow Vent Free Gas Fireplace Log Insert
- Best for smart natural gas: EROMMY 24 Inch Ventless Fireplace Logs Set with Remote Control
Product Comparison: Best Fireplace Inserts Gas
Powerful Dual Fuel
Duluth Forge Dual Fuel Ventless Gas Fireplace Insert, Remote Control, 9 Fire Logs, Use with Natural Gas or Liquid Propane, 32000 BTU, Heats up to 1500 Sq. Ft., Black
Duluth Forge
- VENTLESS DUAL FUEL TECHNOLOGY: Patented technology gives the option to fuel the Fireplace Insert with either Natural Gas or Liquid Propane; 32000 BTU Vent Free gas heater is 99.9% efficient; No outside duct or chimney is needed to heat up to 1500 sq. ft.
- REMOTE CONTROL FEATURES: The gas fireplace insert includes a remote control with LCD screen to turn the Natural Gas or Liquid Propane burner on and off; A standing pilot allows the remote to turn the flame on and off; Manual flame adjustment control
- STYLISH: 9 hand-painted realistic ceramic fiber faux fireplace logs ensure a long life for the indoor fireplace insert; Mesh Screen completes the look
- DIMENSIONS & INCLUDED ITEMS: 18.38″ H x 33.27″ W x 36.38″ D; Clearance from the top of the fireplace to the ceiling must not be less than 42”; Includes 9 ceramic logs, iron grate, 1 AAA battery, remote control & receiver; Weight – 88.2 lbs.
- SAFETY FEATURES: Push button Piezo ignition; Zero-Clearance Firebox can be installed against or recessed into any wall accessible to a gas line
Compact Dual Fuel
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
- VENTLESS DUAL FUEL TECHNOLOGY: Patented technology gives the option to fuel the Fireplace Insert with either Natural Gas or Liquid Propane; 32000 BTU Vent Free gas heater is 99.9% efficient; No outside duct or chimney is needed to heat up to 1500 sq. ft.
- REMOTE CONTROL FEATURES: The gas fireplace insert includes a remote control with LCD screen to turn the Natural Gas or Liquid Propane burner on and off; A standing pilot allows the remote to turn the flame on and off; Manual flame adjustment control
- STYLISH: 6 hand-painted realistic ceramic fiber faux fireplace logs ensure a long life for the indoor fireplace insert; Mesh Double Doors & sprayed brick liner complete the look
- DIMENSIONS & INCLUDED ITEMS: 15.6″ H x 29.1″ W x 29.5″ D; Clearance from the top of the fireplace to the ceiling must not be less than 42”; Includes 6 ceramic logs, iron grate, 1 AAA battery, remote control & receiver; Weight – 69.5 lbs.
- SAFETY FEATURES: Push button Piezo ignition; Zero-Clearance Firebox can be installed against or recessed into any wall accessible to a gas line
Realistic Oak Logs
Duluth Forge DLS-24R-2 Dual Fuel Ventless Fireplace Logs Set with Remote Control, Use with Natural Gas or Liquid Propane, 33000 BTU, Stacked Red Oak, 24 Inches
Duluth Forge
- VENTLESS DUAL FUEL TECHNOLOGY: Patented technology gives the option to fuel the fire logs set with either Natural Gas or Liquid Propane; 33000 BTU Vent Free gas burner is 99.9% efficient; No outside duct or chimney is needed to heat your space
- LONG-LASTING NATURAL APPEARANCE: The 8 hand-painted realistic detailed Stacked Red Oak logs use superior refractory ceramics to ensure a long lifespan; Set includes iron grate and u-burner chassis plus a bag of embers for realistic flames & glow
- REMOTE CONTROL FEATURES: The 24-inch gas log set for an existing fireplace includes a remote control to turn the natural gas and propane burner on and off; Toggle between Manual and Thermostat control to set your desired temperature
- DIMENSIONS AND INCLUDED ITEMS: Minimum Firebox Size – ; Includes 8 Hand Painted Ceramic Logs, Bag of Embers, No bags of Vermiculite, Remote Control, Receiver Box, AA & AAA Batteries, Hardware Pack
- SAFETY FEATURES: Battery-assisted Piezo ignition with built-in pilot oxygen depletion sensor (ODS) immediately shuts down the Ventless gas fireplace logs if carbon monoxide or lack of oxygen is detected, Incudes Damper Clamp
Efficient Red Oak
Duluth Forge Split Red Oak Ventless Log Set – 18 Inch, 30,000 BTU, Dual Fuel (Propane/Natural Gas), Remote Control, Realistic Fireplace Insert
Duluth Forge
- Fireplace accessory suitable for indoor use only; Must be installed in a masonry or agency-approved firebox; Some assembly required
- Oxygen Depletion Sensor (O.D.S.) automatically shuts off the unit if carbon monoxide or lack of oxygen is detected to keep you and your family safe; Economical design offers 99.9 percent efficiency; No outside duct or chimney needed
- Operates off of liquid propane or natural gas with user-friendly Piezo ignition for easy startup; Remote control lets you customize the heat in your room for optimal convenience
- Hand-painted logs cast in concrete from real wood for amazing detail and a high-end look; Uses superior refractory ceramics to ensure a long lifespan; U-Burner chassis design provides 2 rows of flames to create a realistic fire; Chassis is solid and powder-coated for lasting durability
- Ventless 18-inch gas log set features 30,000 BTUs, heating up to 1,100 square feet for a warm, cozy home any time of year; Heats the air and circulates the warmth through the room, much like your central heating system
Thermostat Controlled
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
- VENTLESS DUAL FUEL TECHNOLOGY: Patented technology gives the option to fuel the Fireplace Insert with either Natural Gas or Liquid Propane; 32000 BTU Vent Free gas heater is 99.9% efficient; No outside duct or chimney is needed to heat up to 1500 sq. ft.
- THERMOSTAT CONTROL: Easy-to-use thermostat automatically cycles the gas fireplace insert on and off to maintain a desired room temperature; Ideal for greater heat flow for the space heater in your room
- STYLISH: 6 hand-painted realistic ceramic fiber faux fireplace logs ensure a long life for the indoor fireplace insert; Mesh Double Doors & sprayed brick liner complete the look
- DIMENSIONS & INCLUDED ITEMS: 15.6″ H x 29.1″ W x 29.5″ D; Clearance from the top of the fireplace to the ceiling must not be less than 42”; Includes 6 ceramic logs, iron grate, 1 AAA battery; Weight – 69.5 lbs.
- SAFETY FEATURES: Push button Piezo ignition; Zero-Clearance Firebox can be installed against or recessed into any wall accessible to a gas line
All-in-One Mantel
Duluth Forge Dual Fuel Ventless Gas Fireplace with Mantel – 32,000 BTU, Remote Control, Slate Gray Finish – Model# DFS-400R-2GR
Duluth Forge
- VENTLESS DUAL FUEL TECHNOLOGY: Patented technology gives the option to fuel the Fireplace System with either Natural Gas or Liquid Propane; 32000 BTU Vent Free gas heater is 99.9% efficient; No outside duct or chimney is needed to heat up to 1500 sq. ft.
- REMOTE CONTROL FEATURES: The gas fireplace insert includes a remote control with LCD screen to turn the Natural Gas or Liquid Propane burner on and off; Toggle between Manual and Thermostat control to set desired temperature
- STYLISH: 6 hand-painted realistic ceramic fiber faux fireplace logs ensure a long life for the indoor fireplace insert; Furniture-grade fireplace mantle features light distressing & burnishing on edges; Double Doors & sprayed brick liner complete the look
- DIMENSIONS & INCLUDED ITEMS: 15″ H x 45″ W x 45″ D; Clearance from the top of the fireplace to the ceiling must not be less than 42”; Includes 6 ceramic logs, iron grate, 1 AAA battery, remote control & receiver
- SAFETY FEATURES: Battery-assisted Piezo ignition with built-in pilot oxygen depletion sensor (ODS) immediately shuts down the Ventless gas fireplace logs if carbon monoxide or lack of oxygen is detected; Push button Piezo ignition
Highland Ember Glow
Comfort Glow Vent Free Gas Fireplace Log Insert with Remote, 8 Pcs 24″ Highland Ember Logs, Dual Fuel (LP/NG), Double Yellow Flame, Adjustable Thermostat, Heats 1,400 Sq Ft
Comfort Glow
- REALISTIC GAS FIREPLACE LOGS: Our 24″ dual fuel, Highland Ember log set features a 8 piece realistic looking deep textured oak log set with a glowing ember bed. Enjoy the beauty and warmth of a real wood fire without all the work and mess associated with burning wood.
- THERMOSTAT REMOTE CONTROL: Remote controll allows you to adjust your settings and desired heat temperature from a distance. Redesigned remote receiver extends battery life.
- DUAL FUEL GAS LOGS: Gas log set is compatible with both natural gas and propane fireplace insert setups.
- VENTLESS GAS LOGS: Vent free designs with electronic ignition and adjustable thermostat for easy heat control.
- DOUBLE YELLOW FLAME BURNER: U-shaped burner provides dancing flames that intermingle throughout the logs.
- HEATS UP TO 1,400 SQ. FT.: With 33,000 BTU’s of warmth to heat up to 1,400 sq. feet, this log set can bring the charm of almost any new construction or it can retro fit into an existing firebox or wood burning fireplace.
- NO CHIMNEY NEEDED: This vent free gas logs setup is ideal for indoor use.
- SAFETY FEATURES: Includes ODS system for safe gas fireplace logs for indoor fireplace. Will automatically shut off the unit if carbon monoxide or lack of oxygen is detected.
Premium Split Oak
Duluth Forge DLS-30R-1 Dual Fuel Ventless Fireplace Logs Set with Remote Control, Use with Natural Gas or Liquid Propane, 33000 BTU, Split Red Oak, 30 Inches
Duluth Forge
- VENTLESS DUAL FUEL TECHNOLOGY: Patented technology gives the option to fuel the fire logs set with either Natural Gas or Liquid Propane; 33000 BTU Vent Free gas burner is 99.9% efficient; No outside duct or chimney is needed to heat your space
- LONG-LASTING NATURAL APPEARANCE: The 9 hand-painted realistic detailed Split Red Oak logs use superior refractory ceramics to ensure a long lifespan; Set includes iron grate and u-burner chassis plus a bag of embers for realistic flames & glow
- REMOTE CONTROL FEATURES: The 30-inch gas log set for an existing fireplace includes a remote control to turn the natural gas and propane burner on and off; Toggle between Manual and Thermostat control to set your desired temperature
- DIMENSIONS AND INCLUDED ITEMS: Minimum Firebox Size – ; Includes 9 Hand Painted Ceramic Logs, Bag of Embers, No bags of Vermiculite, Remote Control, Receiver Box, AA & AAA Batteries, Hardware Pack
- SAFETY FEATURES: Battery-assisted Piezo ignition with built-in pilot oxygen depletion sensor (ODS) immediately shuts down the Ventless gas fireplace logs if carbon monoxide or lack of oxygen is detected, Incudes Damper Clamp
Black Forest Style
Comfort Glow Vent Free Gas Fireplace Log Insert, 6 Pcs 24″ Black Forest Logs, Dual Fuel (LP/NG), Double Yellow Flame, Adjustable Thermostat, Heats 1,250 Sq Ft
Comfort Glow
- REALISTIC GAS FIREPLACE LOGS: Our 24″ dual fuel, Black Forest log set features a 6 piece realistic looking deep textured oak log set. Enjoy the beauty and warmth of a real wood fire without all the work and mess associated with burning wood.
- DUAL FUEL GAS LOGS: Gas log set is compatible with both natural gas and propane fireplace insert setups.
- VENTLESS GAS LOGS: Vent free designs with electronic ignition and adjustable thermostat for easy heat control.
- DOUBLE YELLOW FLAME BURNER: U-shaped burner provides dancing flames that intermingle throughout the logs.
- HEATS UP TO 1,250 SQ. FT.: With 30,000 BTU’s of warmth to heat up to 1,250 sq. feet, this log set can bring the charm of almost any new construction or it can retro fit into an existing firebox or wood burning fireplace.
- NO CHIMNEY NEEDED: This vent free gas logs setup is ideal for indoor use.
- SAFETY FEATURES: Includes ODS system for safe gas fireplace logs for indoor fireplace. Will automatically shut off the unit if carbon monoxide or lack of oxygen is detected.
Smart Natural Gas
EROMMY 24 Inch Ventless Fireplace Logs Set with Remote Control, Only Used for Natural Gas, 30000 BTU, Birch Wood, White
EROMMY
- Only Use for Natural Gas Fireplace: 32 000 BTU vent-free burner delivers 99.9% heating efficiency; No external venting required, heats spaces up to 1 100 square feet
- Smart Remote Control: Wireless remote enables manual mode and thermostat mode; Customizable temperature settings with child lock (CP lock) and °F/°C conversion; Auto-shutoff after 2 hours if no signal is detected for 15 minutes
- Realistic & Durable Log Design: The 7 hand-painted birch wood logs crafted from high-temperature ceramic for longevity
- Safety First: Pulse ignition and ODS (oxygen depletion sensor) automatically cut gas if oxygen levels drop
- Dimensions and Included Items: Minimum Firebox Required: 14″D x 32″W(22″W rear) front x 24″H. Includes 7 Hand Painted Ceramic Logs, Lava Rock, Remote Control, Receiver Box
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 should I look for in a gas fireplace insert?
Look for BTU output to match your room size, as well as efficiency ratings like AFUE (Annual Fuel Utilization Efficiency). Consider features like remote control, adjustable flame settings, and safety certifications like ANSI or CSA.
How do vented and ventless gas inserts compare?
Vented inserts require a chimney or flue but offer more realistic flames and better air quality. Ventless models are easier to install and more efficient but may produce moisture and require proper ventilation.
Are gas inserts energy-efficient?
Yes, modern gas inserts can be highly efficient, with AFUE ratings ranging from 70% to over 90%. They provide consistent heat and can reduce heating costs compared to traditional wood-burning fireplaces.
What’s the difference between direct vent and B-vent inserts?
Direct vent inserts use a sealed combustion system, drawing air from outside and expelling exhaust, making them safer and more efficient. B-vent inserts rely on indoor air for combustion and are less efficient but easier to retrofit in some homes.
Do gas inserts require professional installation?
Yes, professional installation is recommended to ensure proper venting, gas line connections, and compliance with local codes. Incorrect installation can lead to safety hazards like gas leaks or poor ventilation.
What features add the most value to a gas insert?
Features like programmable thermostats, remote controls, and realistic ember beds enhance convenience and aesthetics. High-efficiency models and dual-fuel options (natural gas or propane) offer long-term savings and flexibility.
How do I choose the right size insert for my room?
Measure your room’s square footage and match it to the insert’s BTU output, typically 20-40 BTUs per square foot. Oversized inserts can overheat the room, while undersized ones may not provide enough warmth.
Are gas inserts safe for homes with children or pets?
Yes, gas inserts are generally safe with features like cool-to-touch glass and automatic shutoff mechanisms. Always follow manufacturer guidelines and keep flammable items away from the unit.
What maintenance do gas inserts require?
Annual inspections are recommended to check for gas leaks, clean the burner, and ensure proper venting. Some models may need occasional cleaning of the glass and logs to maintain appearance and performance.
How do gas inserts compare to electric or wood-burning options?
Gas inserts offer more convenience and cleaner operation than wood-burning models, with higher heat output than electric ones. They strike a balance between realism, efficiency, and ease of use.