By Frank from Williamsport, Pennsylvania on July 25, 2014
I live in a 100 year old house. I want to put a vent free unit in the corner. I am concerned about fire. The floors are wood. Is a vent free unit safe in a corner? The corner measures 38.75 inches x 38.75 inches. The ceiling height is almost 9 feet. Can you recommend one? We are interested in a winter time evening fire and not concerned about a lot of heat. I want it to look like an insert as we will build a wall around it where it will look like an enclosed triangle. What about heat build up in the enclosed space above the unit? Finally, we want to have a 25 to 32 inch flat panel above the fireplace mantel. Is this possible?
By Tyler M. on July 25, 2014
Per your dimensions, we recommend one of our Empire Vail 26" vent-free fireplaces, one of which you can see here:
Empire Vail 20,000 BTU Vent-Free Natural Gas Fireplace - 26" - VFD-26-FP30LN
If you are installing a television above, we recommend installing a mantel shelf to the clearances stated in the manual for that fireplace and placing the TV above the shelf. Recessing the television into its own enclosure is another suggestion.
By Tom from Sedalia, MO on October 22, 2013
I'm looking for a natural gas fireplace insert to use as a backup heat source. I have a fireplace and chimney that I currently have a Kozy Heat model DBL-2000 (Monticello) electric insert with surround. The surround is 8.5 inches on the top, 7 inches on both sides and 1.25 inches on the bottom. The dimensions on the actual fireplace are larger. I'm guessing maybe 36" wide by 25" tall but that is purely a guess as the surround covers the entire area and I cannot get an accurate measure without removing the surround. I will do so if necessary. The gas insert can be either direct vent or vent free. I'd prefer vent free due to costs. Can you suggest some models that might meet my needs?
By Collin C. - NFI Master Hearth Professional on October 23, 2013
By Shawn from Johnstown, PA on October 15, 2013
I have an 18" set of gas logs (vent free). Can I buy just the insert?
By Collin C. - NFI Master Hearth Professional on October 16, 2013
Answer:Vent free gas logs and burners are mated to each other from the factory, as a dangerous release of soot or carbon monoxide can result if items from different manufacturers are paired together.
There should have been a metal build tag that came with the original burner, if you still have the item. If you no longer have it, I am afraid an entirely new kit will have to be ordered.
By Luis Molina from Atlanta on November 17, 2012
What makes a vent free fireplace "vent free"? Does it need a sensor? Does it need an automatic shut off valve?
By Tyler M. - Fireplace Specialist on November 19, 2012
Answer:All vent-free appliances are equipped with an oxygen-depletion sensor (ODS) that will automatically shut off if oxygen levels in the room drop. This is built in to the pilot assembly of all of our vent-free fireplaces and stoves and is not an extra item.
By Collin C. - NFI Master Hearth Professional on November 19, 2012
Answer:Vent free fireplaces are completely self contained. By using a lower output burner system, they are able to be used with no exhaust vent. These units will also have an oxygen depletion sensor that will close the gas valve, should oxygen levels in the room reach unsafe levels. These units make excellent supplemental heat sources when installed in large areas with plenty of circulation.
By David Nicholas from Adams , Massachusetts on December 5, 2016
I am looking for a vent free insert with logs for my restaurant. I recently removed my vented logs. My fireplace opening is 38" wide and 26" high. I am also looking for this stove to help heat a banquet room.
By Will M. on December 6, 2016
Answer:We will also need to know the opening depth to make recommendations and I highly suggest contacting your local code office if there is any question as to whether open-hearth ventless systems are allowed in a commercial setting.
By Russell from Fincastle, VA on June 19, 2014
I presently have vent free propane gas logs. I am dissatisfied with the smoke damage to fireplace, mantel and ceiling. Does a vent free fireplace insert have less smoke to deal with?
By eFireplaceStore on June 19, 2014
Answer:The amount of byproduct released generally has to do with the BTU output of the vent free set, rather than the type of vent free appliance. It is likely that swapping to a vent free insert will not cure the issue, especially because propane tends to have a greater amount of odorant that accelerates the creation of soot.
You may consider switching to a direct vent insert. While they are not as efficient as a vent free version, they still radiate a good deal of supplemental heat and do not use air from the room for combustion.
By Aaron from Indiana on January 4, 2017
Does this vent free gas fireplace inserts have "safety glass" to protect a child from getting too close to the flame?
By Will M. on January 4, 2017
As most all ventless hearth systems rely on oxygen from the home for combustion, they will not have any solid glass panel or protective barrier like the Direct Vent Fireplace Inserts
we offer, which will also feature a protective barrier screen placed in front of the glass to prevent accidental contact. There are some ventless inserts like the Empire VFL28IN92N Loft Vent-Free Fireplace
which offers an optional tempered glass front with openings along the top and sides of the front for ventilation which effectively seals the combustion chamber, but this is normally not offered with most all ventless systems. While advertised as a fireplace, please note that this model may also be installed inside of an existing prefabricated wood burning or masonry fireplace opening, just like an insert.
By Sandra from KY on July 9, 2013
Do you have a ventless fireplace insert set that can be used outdoors under a covered porch?
By Tyler M. - NFI Certified Specialist on July 9, 2013
We have several models that you can use for your application. Please see our full selection of patio fireplaces below, then use the search options on the left-hand side of the page to select "Vent-Free" in the "Vent Type" category:
By Jerzy from Simpsonville, SC on December 20, 2015
The house I purchased came with an American Dream vent free gas logs set installed in a wood burning fireplace. What does vent free stand for? Should I keep the chimney vent closed in order to save heat?
By eFireplaceStore on December 21, 2015
Answer:Vent free gas logs are designed with a very specific burner assembly and log placement. The burner is engineered to maintain a very hot and even flame, which passes its way between the logs, rather than hitting them directly. This means the set burns very cleanly and as such, the damper in the fireplace can remain closed.
By Ron from Kingsville, MD on November 13, 2013
I need a set of ventless Peterson propane logs with an on/off remote that is about 20" wide, and a ventless insert around which I will build a mantle. What are my options?
By Tyler M. - NFI Certified Specialist on November 14, 2013
We recommend one of our 32" vent-free fireboxes with an 18" Real Fyre log set, or a 36" firebox with a 24" Real Fyre ventless log set. Please see some options for each below:
Ventless Gas Logs
By Sarah from Pikeville, KY on January 24, 2015
What is the difference between a firebox and a fireplace insert? We need a ventless system with a blower to push the heat into the room. Which would be best for us? There will be no connection between the fireplaces and the outside walls.
By Chris C. on January 26, 2015
By Sharon from Owasco, NY on October 16, 2014
Can I convert an 18" log for vent free fireplaces from LP gas to natural gas?
By eFireplaceStore on October 16, 2014
Answer:Unfortunately, vent free appliances cannot be converted between fuel types. This is due to potential safety issues if the conversion is not done properly. Each manufacturer produces the set to be used with a certain fuel.
By Larry from Hemet, CA on November 12, 2012
Are vent-free fireplaces contraindicated for people with asthma?
By Tyler M. - Fireplace Specialist on November 12, 2012
Vent-free appliances are not recommended for homeowners with any respiratory issues, particularly asthma. For more information on this and other factors to consider, please see the "Vent-Free" section of our Gas Fireplace and Stove Buying Guide
By rande from Idaho Falls, Idaho on February 10, 2013
Are there elevation restrictions? Can vent free be operated as a primary heat source?
By Collin C. - NFI Master Hearth Professional on February 11, 2013
Answer:Vent free appliances have an elevation restriction of 4,500 feet. Due to the lack of oxygen, they suffer from frequent pilot outages at any higher elevation.
These units must also only be used as a supplemental heat source. Because of oxygen depletion, the unit will eventually shut down if used as a primary heat source. I highly recommend the use of a direct vent appliance as a primary heat source and at higher elevations.
By Tim from MA on April 26, 2015
Are there any concerns with carbon monoxide with vent free natural gas inserts? Also, are there any laws against using them in Massachusetts that you know of?
By Brennan W. on April 27, 2015
Answer:Vent free appliances do not put out carbon monoxide. They operate at an efficiency that puts off only carbon dioxide and water vapor. While they are approved for sale in Massachusetts, you will need to speak to local code enforcement before installing, as different jurisdictions have different rules regarding installation of fireplaces inserts.
By Brucewood from MD on February 21, 2016
Would you recommend a vented or ventless fireplace insert?
By eFireplaceStore on February 22, 2016
Answer:Both types have their strong points, but for primary heating of a space, I recommend a vented insert. This type will draw combustion air from the outdoors and is sealed from the room. This prevents any negative effect on room air quality and ensures the unit can run as long as needed. The only primary drawback is that they are less efficient than a vent free insert.
Vent free inserts are easy to install and require no outside venting, but they should only be used for supplemental heat. They add moisture to the room and as such, they should only be used for 4 hours continuously. The units can also effect people with sensitive noses or allergy issues.
By Mike from 02771 on December 29, 2016
I have a fireplace: 35 1/4" W & 31 1/2" H. Do you have a ventless option that fits these dimensions?
By Will M. on December 29, 2016
Answer:To properly size any of the fireplace inserts we offer, we will need to know the front width, rear width, front height, rear height and depth of your fireplace opening.
By Jackie from MA on April 27, 2016
Do you need to have a fireplace lined and/or dampers in it if you wish to have a gas insert?
By Brennan W. on April 27, 2016
Answer:Inserts are meant to be installed in a preexisting masonry fireplace.
By Dave from Virginia Beach, VA on November 13, 2012
I have an old pre-fab woodburning fireplace that needs replacing. I got an estimate of $6500 for the whole job. Can I seal off the chimney and install a vent-free gas insert in its place for cheaper?
By Tyler M. - Fireplace Specialist on November 13, 2012
Yes, the cost to replace your manufactured fireplace with a vent-free unit should be considerably cheaper, even when factoring in the cost to run a gas line to the fireplace and removal of the original.
We offer several vent-free fireplaces
that may interest you.
By Rhonda from McDowell, KY on November 11, 2014
I have an electric fireplace in my double wide trailer. Can I replace it with a gas burning, vent free insert?
By eFireplaceStore on November 11, 2014
Answer:Certainly. If the current electric insert is installed into a wooden enclosure, the enclosure could not be used with the gas insert. However, there is not a reason why you could not install a vent free gas model within an enclosure of some sort.
By Vipul from Chicago, IL on April 29, 2013
Do you have a vent free natural gas fireplace insert that will fit in a firebox that's 36 wide, 32 high and 24 deep? I'd like an insert with gas logs, blowers and is remote ready.
By Tyler M. - NFI Certified Specialist on April 30, 2013
Thank you for this information. We recommend the Medium Innsbrook Vent-Free Gas Fireplace Insert with Millivolt Controls
, which comes standard with the burner, log set, decorative brick panels, blower and remote-ready millivolt pilot assembly. You will need to add the remote control itself separately; options can be found in the "Accessories" tab on that item page. Please also note that your opening height of 32" will not be completely covered by the three surround options for that insert. You may want to consider adding the Empire SH1BL Fireplace Insert Shroud
, which would fit behind one of the three surrounds and cover an area of 48" W x 37 7/8" H.
By Phil from Pima County, AZ on March 21, 2017
Can vent free fireplace inserts be used outside (for example, at the edge of a covered patio)? What additional considerations might there be when using a vent free insert outside? Would any of the Empire vent free inserts be appropriate for outside use? Thank you.
By Brennan W. on March 22, 2017
By Ken from Augusta, GA on October 23, 2012
I'm looking for a vent-free double-sided insert.
By Kevin E. - Fireplace Specialist on October 24, 2012
We have a limited selection of see-through vent-free appliances, and fewer still that can be framed into a wall.
If you are searching for a zero-clearance, two-sided, vent free fireplace, please check out our Vail 36"
By Ray from NC on January 3, 2015
Do vent free fireplace inserts have a carbon monoxide sensor built into them?
By eFireplaceStore on January 5, 2015
Answer:While an oxygen depletion sensor is part of their standard construction, the units do not have a carbon monoxide system of any kind. It is recommended to install and maintain at least a couple of carbon monoxide detectors in any home that uses gas appliances.
By Sheila from Bloomfield Hills, MI on March 7, 2013
I am looking for an insert that can be used with gel fuel cans - not the ethanol. I want the natural flame and crackling sound that the gel fuel offers. The gel fuel styles does are not quite what I want so I've decided to use a surround of my choice but I need the insert. Does your company offer that type of insert?
By Collin C. - NFI Master Hearth Professional on March 7, 2013
Answer:Unfortunately, the company that we used to procure the inserts from, Classic Flame/Jensen, will no longer sell the insert by itself. All of their products will come with a surround or entertainment center as part of the package.
While I have looked, I have yet to find a supplier that will offer an insert by itself. I believe this is due to potentially liability issues that could arise if the unit was not installed properly into a listed surround. I apologize that I do not have a source that can provide just the insert.
By Jerry from New Jersey on October 24, 2012
Can you put vent-less gas logs in an electric fireplace?
By Tyler M. - Fireplace Specialist on October 24, 2012
Answer:No. Ventless (or vent-free) gas logs are only meant to be installed in existing wood-burning fireplaces (brick/masonry or manufactured fireplaces that are listed to accept gas logs) or universal, vent-free fireboxes.
By Terry from NJ on November 2, 2015
Do I need a flue in order to use a vent free fireplace insert?
By Will M. on November 3, 2015
Answer:Vent free systems are designed to provide a complete burn, eliminating the need for venting.
By Tim from MI on April 10, 2013
Are there advantages of having a ventless propane fireplace insert over a vented? Can a ventless propane fireplace be turned on by an external thermostat and run when the power goes off?
By Collin C. - NFI Master Hearth Professional on April 10, 2013
Answer:Ventless and vented fireplace inserts both have their own set of advantages and drawbacks. Vented fireplaces use no room air for combustion and give a realistic flame pattern, but are not as efficient as a vent free insert and individual exhaust and intake liners must be used. Ventless appliances require no vent pipe to be run, are very efficient, and simple to install. However, they use room air for combustion and must be serviced on a yearly basis to prevent the release of harmful materials.
Both of these categories of insert can be equipped with a remote or wall thermostat. Millivolt (standing pilot) inserts can indeed be used in the event of a power outage as well.
By Terri from Kettering, Ohio on December 17, 2012
I'm new to this whole idea. I have a house built in 1962 with a large 48" by 24" wood fireplace. The pre-sale inspection came back as needing a chimney liner before it could be safely used. If I bought a vent-free insert, would I need to seal off the chimney? What other work would be required? When looking at insert costs, is there the insert AND the coals or logs?
By Collin C. - NFI Master Hearth Professional on December 18, 2012
Answer:Generally, an insert is sold as a complete unit and will include the logs as part of the assembly. The insert will be a completely sealed system and would not require any connection to the existing chimney.
However, due to the wide and short dimensions of the fireplace, we do not have an insert that would completely cover the full width of the opening. Even with a surround, there would be some exposed space on either side. As such, a customer surround or backer plate would need to be custom-fabricated to take up the extra width.
Another option would be to use vent-free logs in the fireplace and have the chimney relined.
By Dosia from Goldsboro, NC on February 13, 2014
My fireplace opening is 44 1/2" wide by 28" high by 28 1/2" deep. What do you have to fit this opening?
By Collin C. - NFI Master Hearth Professional on February 13, 2014
One of our most popular and reliable units that would fit your fireplace opening is the Medium Innsbrook Vent-Free Gas Fireplace Insert with Millivolt Controls
. This model has the capability to be wired to a remote or wall switch for control of operation. It is important to note that the surround for this unit is slightly narrower than your fireplace opening. As such, the opening would need to be narrowed with additional trim sections.
By Debbie from Cape May, NJ on July 18, 2014
What size gas logs do I need for a 36" gas insert?
By eFireplaceStore on July 18, 2014
Answer:Typically, a 24 inch set would be the correct size to use in a 36 inch box. However, if you would like to provide the front width, back width, and the depth of the fireplace opening, I will be happy to verify sizing.
By David from Glen Rose, TX on December 9, 2013
We have an existing insert that needs to be replaced. The available space is 38 3/4" W x 26 3/4" H x 15-16" D. It is propane, vent free, and has a blower. What do you suggest?
By Collin C. - NFI Master Hearth Professional on December 10, 2013
By Lavene from Ozark, MO on March 9, 2013
If I am replacing vented gas logs with ventless ones do I need to have a plumber do this for insurance purposes? The gas lines are already there and functioning, simply turned off at the gas logs this time.
By Collin C. - NFI Master Hearth Professional on March 11, 2013
Answer:When making any gas connections, I highly recommend have a licensed plumber do the work. They will be equipped with the tools to properly seal and leak test their connections.
By Lavene from Ozark, WV on March 9, 2013
I am considering replacing my existing seven year old vented gas logs with ventless in increase the efficiency. I was told that I could just shut the damper, replace the existing log/burner unit with the ventless one and enjoy it. This sounds too easy. Is there a safety issue, or an insurance coverage issue with just doing this?
By Collin C. - NFI Master Hearth Professional on March 11, 2013
Answer:Replacing a vented log set with a vent free version is indeed a fairly simple conversion. The only thing to consider is the amount of space the unit is heating. Vent free heaters have a tendency to add moisture to any room they are operating in. They also draw all of their combustion air from within the room. As such, they work best when installed into a large space with good air circulation. Other than this stipulation, they are a great way to add supplemental heat to a room.
By Tom Christensen from Nashville, TN on January 7, 2017
I have a vented glass bead gas fireplace. I would like to convert it to a vent free glass bead fireplace. Can this be done by changing the gas burner bars?
By Brennan W. on January 9, 2017
Answer:I will be happy to look into this for you. Is your unit prefabricated or masonry? If prefabricated, please provide the manufacturer and model number.
By Pat from Columbus, Ohio on September 18, 2013
What is required to use "wellhead" natural gas in a vent free fireplace insert?
By Collin C. - NFI Master Hearth Professional on September 18, 2013
Answer:There is technically nothing separate that is required to operate an appliance on wellhead gas, however every manufacturer that I know of advises against it. Lack of odorants, possible impurities, and variation in BTU content are all concerns. To ensure safe operation, it is best to use only city supplied or treated and stabilized gas.
By Joel from Buffalo, NY on May 21, 2014
I have a pretty nice electric fireplace and I would like to keep the unit, but replace the box with a natural gas vent less unit. Can I do this?
By eFireplaceStore on May 21, 2014
Answer:Usually, a gas fireplace and an electric fireplace are self contained assemblies that operate using their respective systems. There is not a way to use an electric fireplace inside a vent free gas unit, as the vent free system will have its own burner and log set.
By Martin on November 9, 2012
What is a millivolt control? Does the pilot light stay on all the time with a natural gas fireplace? Can you manually turn your fireplace off and on? Do you have to have a remote control or a thermostat?
on November 9, 2012
Answer:A millivolt system has a small flame that generates power for the unit's gas valve to operate. As a result, they do not require outside power to operate and can be used in the event of a power outage. The only thing that would be rendered inoperable would be the blower, if applicable. Because of the amount of power the fan needs to operate, it cannot be used during a power outage. With a millivolt system, yes, the pilot will stay lit all the time with natural gas (or propane). You can indeed manually turn it off and on with the control knob. You can even turn it all the way off (extinguishing the pilot) if you wish, but you will have to re-light the pilot every time you want to operate the fireplace. Otherwise, it will go from fully operational back down to just the pilot light. The knob will have three options - "OFF", "PILOT", and "ON", indicating these three options.
On almost all of our millivolt units, you can indeed purchase an optional hand-held remote control or a wall-mount thermostat. We also have hand-held remotes that feature thermostatic control. If you want, please advise on any specific unit or units that you are interested in, and we will be happy to help you explore all of your options regarding remote controls.
Please let us know if you have any additional questions.
By Kris on November 9, 2012
I currently have a gas burning fireplace that vents up an external chimney. The fireplace is not the type that can burn real wood. It burns gas only. The front is a solid piece of glass that does not open.
Can I remove that insert, plug off the chimney pipe and make a direct replacement with a vent free fireplace insert?
With the current fireplace, way too much of the heat goes up the chimney so I would like to put in a direct venting unit so that all of the head stays in the house.
on November 9, 2012
While you would not be able to pull the burner assembly and log set from your direct vent fireplace and replace it with a vent-free burner, you should be able to remove the entire direct vent fireplace and replace the entire appliance with a vent-free alternative. Please follow the below link to view some of our vent-free appliances.
We're happy to discuss this renovation with your further. Please let us know if you have any additional questions.
By Boykin on November 9, 2012
I work for a developer and trying to find modern styled vent free fireplaces that run on natural gas. Do they exist or do I need to buy a contemporary box and then find an insert (river rock, glass, etc.)?
on November 9, 2012
By Kurt from San Diego, CA on May 21, 2014
I have a precast fireplace that has some cracks in it and it was deemed unsafe to use as a wood burning fire place. Can I use a vent free fireplace insert and not worry about heat transfer ?
By eFireplaceStore on May 22, 2014
Answer:Generally, it is not an issue to use a vent free insert in a fireplace that has been deemed unsafe for use as a wood burning model. However, vent free appliances are not legal for use in California. Would you consider using a direct vent insert instead? Like a vent free insert, a direct vent model will use a self contained, slide in chassis. However, it will utilize a pair of 3 inch flexible aluminum liners that will run up the existing chimney to a termination. One liner draws outside combustion air and the other vents exhaust gases.
By Tracy Marks from Ardmore, OK on December 10, 2012
My house is heated by a heat pump. When it gets cold, it is not too efficient. I have a functioning fireplace but we never use it. I would like to get something to insert in the fireplace that would burn LP and would blow out some hot air to supplement our heat pump. What would you recommend?
By Collin C. - NFI Master Hearth Professional on December 10, 2012
Answer:For supplemental heat, you would be best off to use a set of vent-free gas logs. Traditional vented gas logs are largely for looks and do not add much heat to the immediate area, while vent-free logs are classified as room heaters and can supply enough heat to warm a 800-square foot area on average.
By Jeff from Athens, AL on December 13, 2016
I read a lot about ventless fireplaces being unsafe; is ts true?
By Brennan W. on December 14, 2016
Answer:While some people believe that they are unsafe because they use oxygen in the room for combustion, vent free appliances come with a modified pilot called an oxygen depletion sensor, which will shut the unit down the second there is a drop in oxygen level. Vent free appliances are definitely safe when installed and used properly.
By Elaihe from AZ on June 3, 2016
Do vent free fireplaces need glass doors?
By Terri from Tulsa, OK on January 2, 2016
How far above the ventless gas fireplace insert should a TV be?
By eFireplaceStore on January 4, 2016
Answer:Generally, clearance for a fireplace to the television should be double the clearances outlined in the manual for clearance to the mantel. It is recommended to utilize a mantel that is at least as deep as the television, as it will help to serve as a heat shield.