The Duluth Forge Dual Fuel Ventless Gas Fireplace Insert is the closest match here for shoppers seeking a gas insert to retrofit an existing fireplace. The Comfort Glow and EROMMY options are gas log sets, not complete inserts, while the Touchstone and PuraFlame models are electric alternatives. Check your fireplace opening, fuel supply, local codes, and installation requirements before choosing.
| Product | Type | Best For |
|---|---|---|
| Duluth Forge FDF400RT-ZC | Ventless gas fireplace insert | Buyers comparing natural gas and propane |
| Comfort Glow GLD2470R | Dual-fuel gas log set | Buyers wanting logs and a thermostat remote |
| EROMMY 24-Inch Ventless Logs | Natural-gas log set | Buyers who need a natural-gas-only option |
| Touchstone Fireplug 38-Inch | Electric fireplace insert | Buyers considering an electric conversion |
| PuraFlame Klaus 33-Inch | Electric fireplace insert | Buyers who want adjustable flames with or without heat |
Duluth Forge Dual Fuel Gas Fireplace Insert
Best for: Buyers who want a gas fireplace insert with a choice of natural gas or liquid propane. This is the clearest match in the list for a retrofit gas insert rather than a standalone gas log set.
The product features a 32,000-BTU vent-free burner, remote control with an LCD screen, manual flame adjustment, and a standing pilot. It includes six hand-painted ceramic-fiber logs, mesh double doors, and a sprayed brick liner. The manufacturer states that no outside duct or chimney is needed and gives a heating coverage claim of up to 1,500 square feet.
Why it was selected: Its insert format and dual-fuel design align most closely with the search for a gas fireplace retrofit. Confirm that the appliance is suitable for your fireplace and fuel setup before purchase.
Limitation: This is a ventless model. Vent-free appliances may be restricted or subject to specific rules in some locations, so check local requirements and installation instructions first.
Comfort Glow Dual-Fuel Gas Logs
Best for: Buyers who want a gas log set for a compatible existing fireplace and value the option to use natural gas or propane. This product is a log set, not a complete fireplace insert.
The 24-inch Highland Ember set has eight textured oak-style logs and a glowing ember bed. Its thermostat remote is designed to adjust settings and the desired heat temperature from a distance. The listed features describe the set as vent-free and compatible with natural gas and propane fireplace setups.
Why it was selected: It offers dual-fuel flexibility and remote temperature adjustment, making it a useful comparison for shoppers whose existing fireplace is suited to a gas log set rather than an insert cabinet.
Limitation: The product is not described as a full insert. Verify that your fireplace and installation conditions are appropriate for this specific log set; do not assume it can replace an insert.
EROMMY 24-Inch Natural Gas Logs
Best for: Buyers with a suitable natural-gas fireplace setup who want a ventless log set with remote controls. The manufacturer states that this set is for natural gas only.
Its listed features include a 32,000-BTU burner, six hand-painted ceramic logs, and a wireless remote with manual and thermostat modes. The remote includes temperature settings, child lock, Fahrenheit/Celsius conversion, and an automatic shutoff feature described as activating after two hours if no signal is detected for 15 minutes. The listing says no external venting is required and claims coverage up to 1,100 square feet.
Why it was selected: It provides a clearly specified natural-gas-only choice and useful remote functions for shoppers comparing ventless log sets.
Limitation: It is not a dual-fuel option or a complete insert. Avoid this choice if you need propane compatibility, and confirm local rules for vent-free appliances before buying.
Touchstone Fireplug 38-Inch Electric Insert
Best for: Buyers considering an electric conversion instead of a gas appliance. This is an electric insert designed for an existing wood or gas fireplace; it is not a gas retrofit insert.
The listed front face measures 38 inches wide by 29 inches high. The insert is specified for openings measuring 36.75 inches wide by 28.5 inches high by 8 inches deep. Features include realistic flame effects, a built-in crackling sound, a 1,500-watt heater, and Wi-Fi and Alexa compatibility, as stated in the product name. The listing describes installation as recessed or built-in, with minimal modification for a properly sized opening.
Why it was selected: It is a relevant alternative for people who want to repurpose an existing fireplace opening without choosing another gas appliance.
Limitation: Measure the opening carefully: the stated fit dimensions are specific. Choose a gas model instead if using a gas flame is essential.
PuraFlame Klaus 33-Inch Electric Insert
Best for: Buyers who prefer an electric insert with adjustable flame effects that can run with or without heat. It is an electric alternative, not a gas insert.
The overall dimensions are listed as 35.04 inches wide, 26.96 inches high, and 8.78 inches deep. The product has three flame settings with variable intensity and brightness, LED technology, and a resin log above an ember bed. Its antique-style design includes a three-sided brick-look interior, glass door, and mesh screen. The listing says the flame can be used year-round without heat.
Why it was selected: It offers a different electric option for shoppers who prioritize adjustable flame presentation and seasonal use without heat.
Limitation: Check the full dimensions against your opening before choosing it. It does not provide gas operation or the dual-fuel flexibility of a gas insert.
Buying Guide: How To Choose A Fireplace Retrofit
Start by deciding whether you need a complete insert, a gas log set, or an electric appliance. These categories are not interchangeable. A complete insert is an appliance designed to fit into a fireplace opening; a log set is intended for a compatible fireplace setup and does not necessarily include an insert enclosure. Electric models use electricity rather than a gas burner.
Do You Need An Insert Or A Gas Log Set?
Choose a complete insert if you are specifically replacing or converting the appliance within an existing fireplace. The Duluth Forge model in this selection is identified as an insert. Choose a log set only if your fireplace is suitable for that type of installation and you want the included burner and logs rather than a complete insert. The Comfort Glow and EROMMY products are log sets.
Do not rely on appearance alone to identify a product category. Compare the product description, installation instructions, and required fireplace configuration. If your existing appliance is being replaced, have a qualified professional confirm the correct replacement type and installation needs.
Which Gas Type Does Your Home Use?
Check your available fuel before selecting a model. The Duluth Forge and Comfort Glow products are described as compatible with natural gas and propane. The EROMMY set is explicitly for natural gas only. Do not assume a natural-gas appliance can be used with propane, or the reverse, unless the product documentation specifically supports the intended fuel.
Ask an installer to verify the fuel supply, connection requirements, and whether the appliance is appropriate for the fireplace. A product’s fuel compatibility does not by itself confirm that it fits or is approved for a particular installation.
Will It Fit The Existing Fireplace Opening?
Measure the opening’s width, height, and depth, and compare all three dimensions with the appliance specifications. Allow for any fit or clearance requirements in the manufacturer’s instructions. The Touchstone listing gives an opening size of 36.75 by 28.5 by 8 inches, while PuraFlame lists overall dimensions of 35.04 by 26.96 by 8.78 inches. Those measurements describe different things, so compare them carefully rather than treating them as equivalent.
For gas products, confirm the required installation clearances and fireplace conditions as well as the physical dimensions. A unit that appears to fit may still be unsuitable if the installation requirements are not met.
Should You Choose Vent-Free Gas Or Electric?
The listed gas options are described as vent-free or ventless. These products are not appropriate for every home or location. Rules for vent-free appliances can vary, so check local building and fire requirements and the manufacturer’s instructions before selecting one. Do not assume that “no external venting required” means no installation restrictions.
An electric insert avoids selecting between natural gas and propane, but it is not a gas appliance and will not provide a gas flame. Compare its opening dimensions and electrical requirements with your setup. If retaining gas heat is a priority, focus on an appropriate gas insert instead.
How Should You Compare Heat And Controls?
Compare the listed burner output and control features without treating a manufacturer’s coverage claim as a guarantee for your room. The Duluth Forge and EROMMY listings each state 32,000 BTU, but their stated coverage areas differ. Actual suitability can depend on the home and installation conditions, so have a professional assess heating needs.
Remote features also vary. Duluth Forge lists an LCD remote and manual flame adjustment; Comfort Glow lists a thermostat remote; EROMMY lists manual and thermostat modes with a child lock. Choose controls based on the functions you need, and check the product instructions for operation and safety details.
What Should You Confirm Before Ordering?
- Confirm whether the product is a complete insert or a log set.
- Measure the fireplace opening and check the manufacturer’s fit and clearance instructions.
- Verify the fuel type and any gas supply requirements.
- Check local rules for ventless or vent-free gas appliances.
- Confirm installation requirements with a qualified professional when needed.
- Review the operating instructions and control features before choosing a model.
Frequently Asked Questions
What Is The Best Match Here For A Retrofit Gas Fireplace Insert?
The Duluth Forge FDF400RT-ZC is the closest match because it is described as a ventless dual-fuel gas fireplace insert. Confirm that its dimensions, fuel type, and installation requirements suit your fireplace.
Are Gas Fireplace Logs The Same As A Gas Insert?
No. The Comfort Glow and EROMMY products are gas log sets, while the Duluth Forge product is identified as a fireplace insert. A log set may require a suitable existing fireplace setup and should not be assumed to replace a complete insert.
Can The EROMMY Log Set Use Propane?
The listing says the EROMMY set is only for natural gas. Do not select it for propane unless the manufacturer’s documentation explicitly confirms compatibility.
Are Vent-Free Gas Fireplace Products Allowed Everywhere?
No universal approval can be assumed. Local requirements can vary, so check applicable rules and the manufacturer’s instructions before buying or installing a vent-free appliance.
Can An Electric Insert Retrofit An Existing Gas Fireplace?
An electric insert may be an alternative for an existing fireplace opening, but it is not a gas insert. Check the opening dimensions and installation requirements to determine whether a specific electric model is suitable.