By Pat from CA on March 14, 2013
Are ventless fireboxes allow in Northern California?
By Tyler M. - NFI Certified Specialist on March 15, 2013
Answer:Generally speaking, no. California has outlawed the use of vent-free gas appliances in most applications. Please contact your local building code enforcement office for more information.
By Linda from CT on December 10, 2013
Can you vent a vent free insert? We have one and it gives us headaches.
By Collin C. - NFI Master Hearth Professional on December 10, 2013
Answer:If the unit is a true insert, meaning a metal chassis that was slid into an existing fireplace, it cannot be vented. The insert will not have provisions for a vent. A vent free log set can of course be vented by opening the damper. While you may be experiencing sensitivity to the byproducts of a vent free heater, headaches are usually a sign that the unit is producing carbon monoxide. If the unit has not been serviced recently, it may need to be cleaned and the air shutter adjusted to verify that it has the cleanest burn possible.
By Zach from TX on August 21, 2014
I am interested in a vent-free fireplace, but a plethora of testimonials from homeowners is dissuading me. Every testimonial complains about CO emissions, related sicknesses, and vapor build up. Meanwhile, dozens of companies are making and retailing vent-free fireplaces, which implies they are safe, or have passed safety standards. Can you please help clarify the matter, so as to help me make a decision?
By eFireplaceStore on August 21, 2014
Answer:There are indeed many arguments for and against vent free fireplaces. Most of the issue comes down to proper sizing of the fireplace for the space and regular maintenance of the unit as well.
Vent free fireplaces rely on a ready supply of combustion air within the room. As such, the room must have a certain volume per BTU. If the minimum room volume is not met, the unit can quickly deplete the oxygen in the space. Likewise, the byproducts that are released by every vent free fireplace will quickly build in the room, with no air to dissipate them. It is this scenario that can cause excess moisture buildup, CO accumulation, and low oxygen levels.
The other issue is related to regular cleaning of the unit. It is absolutely essential that vent free appliances are cleaned at least once a year. This involves completely removing the log set from the burner and cleaning the pilot assembly, air shutter, and burner ports with compressed air. Dust, lint, pet hair, etc. that is drawn into the unit during normal operation will eventually cause a buildup that can be dangerous. Cleaning the unit ensures that the danger is minimized.
In summary, vent free appliances are best used in large, open rooms with low relative humidity. When installed in this environment and serviced properly, they can be an excellent source of supplemental heat. Smaller spaces are best served by a direct vent appliance, as there is no air interchange with the room.
By Bill from Los Angeles on January 6, 2014
Are vent free gas fireplaces legal in California?
By Tyler M. - NFI Certified Specialist on January 6, 2014
Answer:No, vent-free gas appliances are generally outlawed across the board in California.
By Mike from MO on January 29, 2014
My vent free fireplace has caused my wall to blacken. What do you think caused this?
By Collin C. - NFI Master Hearth Professional on January 30, 2014
Answer:This issue is commonly caused if the fireplace has not been serviced in some time. Dust that is drawn into the unit over time can block the air shutter at the base of the burner assembly. Spider webs can also cause this issue. The clogged air shutter keeps the correct amount of combustion air from being drawn in and the fuel rich mixture that results can cause a release of soot. I recommend carefully removing the log assembly and blowing out the air shutter, burner assembly, and pilot with compressed air. This should restore proper function.
By Dan from Hebron, CT on September 28, 2013
Do you have a unit that only requires 12" of depth?
By Collin C. - NFI Master Hearth Professional on September 30, 2013
By kisha rose from Arkansas on February 28, 2013
What is the difference in louver and flush vent-free see-thru fireplaces?
By Chris on February 28, 2013
Answer:A louvered model will have slat louvers at the top and bottom of the fireplace allowing air to circulate around the chassis of the firebox. Most commonly, louvered models also allow use of a blower.
A flush fireplace will not have the louvers, but commonly will allow the installer to use their finishing materials almost all the way to the opening of the fireplace.
By Andrea N. Paddock from Monroe, CT on November 12, 2016
Recently we had our gas-fired water heater replaced. In the process of switching out the old and replacing it with the new, the technician shut off the gas. When he finished, we realized the pilot light on our vent-free Empire Breckinridge VFD32FB0L fireplace was not lit. How do we light it, so we can use the fireplace during the winter?
By Larry from Dallas, TX on December 20, 2016
I need a technician to replace a pro flame receiver. The company, Desa is out of business. Do you have any suggestions as to who I can contact?
By Will M. on December 20, 2016
Answer:Please provide the model and serial number of your Desa fireplace for clarity.
By Karl from Santa Rosa, CA on November 2, 2013
I'm looking for low profile (i.e. 24 inch high) corner unit for a bedroom. I'd like a 12-15000 BTU/hr range and vent free gas model. Do you have any suggestions?
By Kevin E. - NFI Certified Specialist on November 3, 2013
We'd be happy to make a recommendation. However, when installed into a bedroom, vent free appliances are limited at 10,000 BTU. Further, the state of California prohibits the installation of vent free appliances. If you are open to installing a direct vent fireplace and the requisite venting, something like our Small Loft
would be a fine option.
By Terry from OR on September 4, 2017
I have a 20 year old Superior VFC 38 vent free fireplace. The previous owner pointed out that it gives off black soot and said this is common for vent free appliances. Is that true? It also does not have the glass doors and she claims it didn't come with them. Is that true? Are glass doors still available?
By Brennan W. on September 5, 2017
Answer:Sooting should not be occurring if everything is installed correctly. This could be due to the logs being placed incorrectly, which will cool the flame and cause sooting, or it could be over-pressurization of the gas valve. I would suggest having a technician come out and service the unit to get it properly operating. As for glass doors, unfortunately, they are not available for vent-free units since the front must remain open.
By Ki from McLean, VA on November 19, 2014
I am building an outdoor pavilion and I want to put a gas fireplace in one of the walls without a chimney. I also want an open faced fireplace without glass doors enclosing the front. What would you suggest?
By eFireplaceStore on November 19, 2014
By Sharon from Connecticut on February 7, 2014
I'm interested in a vent less fireplace with zero clearance that operates on propane and is energy efficient. I have propane for cooking and may add a propane generator. I have a small 1200 sq ft house and want to put it in the llvingroom. Can you recommend one? It can be built in or look like a regular fireplace with a mantel.
By Collin C. - NFI Master Hearth Professional on February 9, 2014
One of our most popular models of vent free fireplace is the Vail Premium Vent-Free Propane Fireplace with Blower - 36"
. The vent free design ensures optimal efficiency and the 36k BTU output is sufficient to heat an area of 1,000 square feet. The built in blower also helps to optimize thermal efficiency by increasing air circulation. The unit is able to be built into a combustible enclosure or can be used with one of the accessory mantels listed on the item page. Empire has a long history of producing vent free heaters and is among the best of manufacturers for this type.
By G'Anna from Salem, Oregon on February 18, 2014
I am shopping for a vent free fireplace with mantle. All the attractive ones seem to be gel fuel. Can I convert a gel fuel fireplace to vent free gas?
By Collin C. - NFI Master Hearth Professional on February 18, 2014
Answer:Unfortunately, the vent free gas units require larger clearances to combustibles than the gel and electric models. This is part of the reason why the gel fireplace mantels are able to be made so compact and are more detailed. I apologize that these mantels cannot be fitted with a gas unit.
By Marie Romano from East Norriton, PA on January 10, 2017
What is the price of a replacement valve for an Empire vent-free gas burner. Product # VFSR-18-R, Serial # 1440566050?
By Brennan W. on January 10, 2017
Answer:Does your unit utilize natural gas or porpane?
By Brian from NY on June 26, 2016
Can a TV be mounted above the fireplace? I have approximately 500 square feet is 10,000 BTU enough?
By eFireplaceStore on June 27, 2016
Answer:Televisions can indeed be mounted above vent free fireplaces, however you must follow the guidelines specified by the manufacturer. For a 500 square foot area in your climate, I recommend a vent free unit around 20,000 BTUs.
By John from AR on May 23, 2015
I have had open heart surgery. How would a vent free gas fireplace effect my health if I use this as my primary heating source?
By Will M. on May 26, 2015
Answer:Vent free appliances should not be depended on as a primary heat source and would not be recommended for anyone with any type of breathing condition or allergy. They rely on oxygen from the home for combustion and will subsequently deplete the oxygen level without providing any type of makeup air. While the ODS or oxygen depletion sensor will shut the appliance down if the oxygen level gets to around 18%, I would not recommend installing a vent free appliance due to your condition.
By RuthAnn from Oak Island, NC on December 19, 2015
Is there anything I can do to minimize the propane smell when I burn my vent free fireplace? It was installed by our builder and we had no previous experience with propane, having come from a home with a wood burning fireplace. We don't use it often. We have a full tank of propane and just had it serviced. (Had I known then what I know now, I might have made a different choice.)
By eFireplaceStore on December 21, 2015
Answer:If gas pressure has been verified to be in range at the unit and the log set has been placed properly, I'm afraid there is nothing else that can really be done. Vent free units do emit an odor and some individuals are more sensitive to it than others. The amount of methyl mercaptan used in the propane by the supplier can also have an effect.
By Kris from Fox Lake on December 30, 2013
Can I use my ventless fireplace to heat my downstairs 24/7? Is it OK to leave it going for 3 months straight?
I have the ETF200TCC-MD.
By Chris on December 30, 2013
Answer:A vent free appliance such as your fireplace is designed for supplemental heat only. Having the fireplace operate constantly can cause oxygen depletion issues. Because of oxygen depletion, the unit will eventually shut down if used as a primary heat source. I would recommend the use of a direct vent appliance as a primary heat source instead of a vent free appliance.
By Donald Deharde from Nashville, TN on November 19, 2016
Does it matter if the gas is natural or propane on a ventless gas fireplace.
What type of professional is qualified to install this?
By craig from Chicago on October 29, 2012
What are the limits for using a vent-free in an open patio with a roof?
By Tyler M. - Fireplace Specialist on October 30, 2012
Answer:The primary concern will be the distance from the top of the opening to your roof. Each vent-free unit will have a minimum distance required for this measurement, and these vary from model to model.
This information can be found in the owner's manual of each unit, and we have PDF format owner's manuals for our fireplaces on each item page.
By Melissa from Delaware on June 19, 2014
We purchased a 19 year old house that came with a 42" louvered Temco ventless fireplace. We tore down the dated mantel and surround and are constructing a bump out wall that will be stoned around the fireplace. The manual recommends a 1" clearance from the top of the firebox to combustible materials but I'm a bit paranoid as the builder installed with 5" clearance; so I'm second guessing myself and the manual since the company is no longer in business. I'm not concerned with the sides as they remain cool to the touch, but wondering if I can butt up the cement board to the top of the firebox and then cover with the stone and remain safe from fire hazard? Also, questioning the need to cover the underside of the horizontal 2x4 (which is 2" above the top of the fireplace) with cement board just to be safe? The fireplace puts out a lot of heat at the top. Would a blower help dissipate the heat and if so, can you recommend one for this model?
By eFireplaceStore on June 19, 2014
Answer:Temco, with was a product line of Temtex corporation, was absorbed by Majestic products. Many of their designs are still used in current production of Majestic products, without any safety issues.
However, I would like to know the exact model number of the Temco unit, as this will allow me to study the owner's manual for this model and determine if your surround will meet all clearance requirements. Please advise at your convenience.
By Jim from UT on September 10, 2015
Do your vent free fireplaces have oxygen depletion sensors?
By eFireplaceStore on September 11, 2015
Answer:By mandate, all vent free fireplace utilize an oxygen depletion system. In the event of low oxygen levels in the room, the pilot flame will begin to lift away from the pilot tube. When oxygen levels become low enough, the flame will lift so far off of the tube that it will no longer heat the thermocouple/flame sensor. This will cause the valve to lose voltage/signal and shut down, extinguishing the main burner flame.
By Ken Boorman from Ontario,Oregon on December 20, 2016
Are the ventless fireplaces safe?
By Will M. on December 20, 2016
There is a wealth of information discussing this topic posted here.
By Sue from Huntington, IN on May 29, 2014
Are there oxygen depletion sensors built in to the pilot on majestic ventless gas log fireplace inserts?
By Chris C. on May 29, 2014
Answer:Oxygen depletion sensors are certainly built in to the pilot assembly on ventless gas log sets.
By Areej from Palos Heights, IL on January 28, 2013
Hi, are any of your vent free electrical wall mounted fireplaces safe to be mounted under a television?
By Chris on January 29, 2013
Answer:The electric fireplaces we offer from Fire Sense can be mounted under a television. However, the manufacturer recommends having at least 3 feet from the top of the fireplace to the nearest combustilbe material such as electrical cords, furnishings, and drapery.
By Paul from Rush, KY on February 11, 2016
I need a fireplace insert that uses natural gas, is ventless, and measures 34 inches wide by 25 inches high. Do you carry one this size?
By Will M. on February 11, 2016
If you are looking for a fireplace insert that can be installed into your existing prefabricated wood burning or masonry fireplace opening, you will find several models that will work with your width and height dimension here.
By Chip from St. Louis, MO on January 3, 2016
We want to add a vent free, zero clearance propane fireplace to our living room. It is a large room, so we want the largest fireplace that we can get. We plan on doing the stone work around it once it is installed. What do you suggest?
By Brennan W. on January 4, 2016
By Kevin E. on January 4, 2016
We have several vent free units from which to choose. The largest of which is our 48" Empire Boulevard
fireplace. It would be useful to keep in mind that often, the larger fireplaces are generally more modern in their styling. For example, this Boulevard unit is very wide but it is not very tall. This linear style provides a more modern look than something like our 36" Empire Vail
By Ruth from NY on January 11, 2013
I currently have an inefficient builder's grade direct vent fireplace installed in my home. Is it possible to have an energy efficient vent free fireplace installed? If so, how difficult it is to do this? The builder's fireplace is inset in a stone veneer wall.
By Collin C. - NFI Master Hearth Professional on January 11, 2013
Answer:It is possible to remove the current direct vent unit and replace it with a vent free fireplace. In order to minimize the amount of stone removal, I would recommend using a unit that is close in size to what you have now. Do you have any model or manufacturer information from the current unit? This will not only give me the size of the opening, but also the dimensions of the unit behind the stone veneer. Please advise at your convenience.
By Stefanie from Morristown, SD on June 13, 2013
Which of your vent free fireplaces would I be able to hang a TV over. My TV is 52 inches, do you have a 30-42 inch fireplace that I could hang it over?
By Collin C. - NFI Master Hearth Professional on June 14, 2013
Building the fireplace into the entertainment center is certainly feasible, as long as the required clearances are maintained between the box and the surrounding wooden enclosure. A couple of our more popular and reliable models are manufactured by Napoleon and Empire. The Napoleon models are the Napoleon GVF36 Vent Free Gas Fireplace
and the 42 inch version, which is the Napoleon GVF42 Vent Free Gas Fireplace
. Both of these models offer a realistic fiber ceramic log set and 30,000 BTUs of supplemental heat. As standard, they also feature an oxygen depletion system, should oxygen levels in the room become too low.
The Empire offering is the Vail Premium Vent-Free Natural Gas Fireplace - 36 Inch
. This model features a slightly higher BTU output than the Napoleon models and is the most dependable vent free series we sell.
When mounting the television above the entertainment center, it is best to have at least 24 inches of space between the television and the fireplace. More clearance is better, as is recessing the television into the wall, if possible. Vent free heaters produce a large amount of heat in the immediate area. As such, they can ruin electronics if they are mounted too low.
By Tom from Myrtle Beach, SC on November 8, 2013
How do you convert a vented propane fireplace to a vent free fireplace?
By Collin C. - NFI Master Hearth Professional on November 8, 2013
Answer:To convert the fireplace, you would need to purchase either a vent free log set or vent free insert. Either system could be operated within the opening and would be burned with the damper closed, allowing heat to circulate into the room for supplemental heating abilities.
By Kurt from Dayton, OH on February 23, 2015
I have a 36" wide electric media fireplace. I like the style and look of the media fireplace but the electric insert just doesn't put off enough heat. So, I would like to replace the electric insert with a vent-less natural gas fireplace insert. Is this possible? Will I encounter any fire hazard issues? Is this a bad idea for any reason?
By eFireplaceStore on February 24, 2015
Answer:While this is a common request, I'm afraid that it cannot be safely done. The media centers do not offer enough overhead clearance in order to maintain safe temperatures. Even low output gas fireplaces require a good deal of clearance above the chassis and the relatively compact media centers do not afford enough space.
By Tonya from Alabama on November 27, 2012
I am looking for a 44" wide across front, 14" sides deep, then angled from the 14" to 35 3/4" pointed in the back (this sits in a corner) ventless firebox with stone look inside. Would you be able to help me?
By Collin C. - NFI Master Hearth Professional on November 27, 2012
Answer:Most of our vent free fireboxes will have a front overall width and depth that is similar to your needs; however, they range from 20 to 26 inches in overall depth and do not have the option for a liner with a stone appearance.
By Rex from Grand Rapids, MI on May 31, 2014
Can a propane vent free fireplace be converted to natural gas?
By Tyler M. on June 2, 2014
Answer:No, unfortunately, vent-free gas fireplaces cannot be converted for fuel type.
By Cherie Smith from West Salem, Ohio on January 4, 2017
We have a ventless natural gas fireplace; can we change it to propane?
By Chaz on January 5, 2017
Answer:We do sell Gas conversion kits for some units. If possible, you can you provide the model # of your unit, and we will happily check for you.
By Dondiego from Katy, TX on August 24, 2014
I have a real fireplace that opens on both sides. Do you have a vent free unit that can sit in my existing fireplace that does no need to be contained in glass?
By Kevin E. on August 25, 2014
Indeed, two-sided or see-through vent free gas log sets are available. You may view our available styles by visiting our Ventless Gas Logs
page and then refining your search by clicking the See Thru option located on the left hand side of the page. Or, if you'd like to reply with the width and depth measurement of your fireplace, I'd be happy to recommend specific sets that would work for you.
By Jack from Burlington, NC on July 11, 2013
I have an existing Superior fireplace vent less, natural gas, with a sealed glass panel on the front. Can I remove the panel and replace with more efficient gas logs and not replace the ugly glass front?
By Tyler M. - NFI Certified Specialist on July 11, 2013
Answer:If your fireplace has a sealed glass front, it cannot be a vent-free unit. Vent-free fireplaces cannot have glass fronts or doors, as they need to "breathe" to bring in combustion air and release carbon dioxide and water vapor. Regardless, you will not be able to remove the glass panel as that model requires it for operation. You may want to consider a total vent-free replacement to avoid having the glass front. You can see our full selection below on this page.
By Paul from Lewes, DE on November 6, 2014
Can you wash ceramic logs?
By Chris C. on November 6, 2014
Answer:The logs themselves can be cleaned using a vacuum and brush to remove debris. Any remaining debris can be wiped off with a dry soft rag, but I would advise against using any type of cleaner on the log as the cleaner could negatively react with the flames from the burner. I would check your owner's manual to see if they allow for a damp rag to be used to clean the logs themselves.
By Dino from Chicago on April 23, 2014
I want to build living space in my attic. I am on a very tight budget. Can I put a vent free heater in all 3 rooms that I'm going to build. Will that be enough heat for each room? Each room will be around 300 sq ft.
By Collin C. - NFI Master Hearth Professional on April 23, 2014
Answer:Vent free heaters can be used as individual heat sources for each room. It is important to note that there is a 10k BTU limit for bedrooms, but this is enough heat to work for up to a 300 square foot area.
By Connie from Avinger, Texas on January 4, 2013
I am looking for vent-free propane logs with an electric start instead of a pilot light. Do you have these? I would like a remote control also.
By Tyler M. - Fireplace Specialist on January 4, 2013
By Brae from OH on October 22, 2014
Is there a kit that I can buy that takes the water vapor outside from a ventless fireplace insert? We have water condensation on the windows and patio doors.
By eFireplaceStore on October 22, 2014
Answer:Unfortunately, no. Condensation on windows can occur when a vent free appliance is operated in smaller rooms or for an extended period of time. The only way to rectify the issue is to use a dehumidifier in the area or to limit the operation of the appliance.
By William from Philadelphia, PA on January 2, 2014
I am looking for a vent free gas fireplace for my family room/kitchen. The room is 30' x 20' and all one room. What do you recommend? My original house is connected to this addition and is about the same size. Can this new unit heat that area as well because that is where the thermostats are? Do I need a blower for a ventless unit?
By Tyler M. - NFI Certified Specialist on January 2, 2014
Answer:To provide ample supplemental heat to your room, we would recommend a vent-free fireplace with 20,000+ BTUs. Depending on your preference of style (traditional log set or contemporary linear burner), we have a variety of units that can accomplish this and meet your needs. We would indeed recommend adding a blower to increase the efficiency of the heat output throughout the room. Please advise if you have a size or style preference and we can provide specific recommendations.
By Don from KY on April 27, 2013
Do you have a round, ventless propane firepit that I can use in a sun room?
By Collin C. - NFI Master Hearth Professional on April 29, 2013
Answer:Unfortunately, all of the fire pit burners we currently offer must be vented. We do offer some vent free burner assemblies, but they are designed to be used in a standard firebox and would not offer the desired appearance for a fire pit.
By Christy from Atlanta, GA on January 2, 2014
I have a 2-year old home that came ready (has the fittings already in) for gas or propane logs. It is completely ventless. I do not have a chimney. Also my TV sits in an insert (pre-made by the builder) above the fireplace. I've read some of you questions/answers, and I'm now concerned about my TV. I'm also concerned about having heat if I lose power as my home is completely electric. If I lose power and use my gas logs, is there a risk of Carbon Monoxide poisoning? Do you recommend that I investigate anything further? I'm strongly considering having a gas line run, but not using propane.
By Collin C. - NFI Master Hearth Professional on January 3, 2014
Answer:Because your television is in a recessed alcove above the fireplace opening, you should not have any issues with overheating. This primarily occurs when the television is mounted flat to the wall and is directly above the fireplace opening, subjecting it to a great deal of heat.
Any high quality set of vent free gas logs is designed to be operated for up to four hour intervals without the release of any harmful material. Natural gas is the easier fuel to use with vent free, as it is lighter than air and will rise naturally. LP will sink and requires more specific burner adjustments to burn properly. All log sets that we offer can be operated without an external power source, so they could be an excellent source of backup heat.
By Ron from Kentucky on December 1, 2016
Which unit puts off the most heat for the price?
By Brennan W. on December 1, 2016
Answer:I will be happy to look into this for you. Are you looking for propane or natural gas?
By Kashif from Seattle, WA on July 14, 2013
I have a wood burning fire place that I'd like to replace with a gas insert. Should I go for Vent free or Direct vent? What can I use?
By Collin C. - NFI Master Hearth Professional on July 15, 2013
Answer:The unit you have pictured is a manufactured type of fireplace, which will likely not accommodate a gas fireplace insert. However, gas logs could be installed into the existing fireplace without an issue. For better heat output and a different appearance, the current manufactured fireplace and chimney could be completely removed and replaced with a manufactured direct vent or vent free fireplace.
By Kim from Hardeeville, SC on December 29, 2016
We have a FMI GL5000. We are needing a thermalcouple. I would like a parts list and owner manual, if possible. Because this is a retired style it is hard to find this information. All I have is the model number, date of manufacturer (01-94) and serial number from the tag in the box.
By Owen on December 30, 2016
We do not have any owners manuals for units that old. You can contact FMI
By Anne from Greenville, SC on September 13, 2015
I'm interested in the Superior 36" VRE 3000 Series Propane Vent Free Fireplace for my Screened in porch. Is this model suitable? Also, where would I find a mantel or attractive enclosure for this unit?
By eFireplaceStore on September 14, 2015
Answer:This unit can indeed be used for a screened in porch application without an issue. Unfortunately, the manufacturer does not offer a model specific enclosure for this particular unit. As such, you will need to work with a local cabinetmaker or finish carpenter to trim out the unit once installed.
By Michele A Delle Cave from USA on November 12, 2012
I am looking for a gas insert - vent free fireplace that is 32 W & 30 H. Would you have anything in this size?
By Tyler M. - Fireplace Specialist on November 13, 2012
Answer:We do have some options that are close to that size, but we need a bit more information before we can make a recommendation. Do you currently have a vent-free firebox and need a ventless gas log set, or do you have a brick/masonry fireplace into which you wish to install a full-bodied vent-free insert?
By Paul from Rensselaer, IN on December 29, 2015
Can Vent Free fireplaces be installed into an inside wall instead of an outer wall?
By Brennan W. on December 30, 2015
Answer:Vent free fireplaces can indeed be installed in an interior wall.
By Mike from Myrtle Beach, SC on February 11, 2017
There is water vapor generated when you burn propane; how does your vent free fireplace handle that issue?
By Will M. on February 13, 2017
Answer:All ventless systems will emit water vapor as a combustion byproduct and this will only become an issue in well insulated homes that lack a high rate of air exchange with the outdoors. This problem is normally rectified, somewhat, by properly sizing the BTU input of the chosen ventless system to ensure it is not over-sized for the cubic footage of the room the system is installed in, along with any other rooms that may be open to this space, in addition to installing the optional outside air kit offered with many of the ventless fireplaces and fireboxes we advertise.
By Tom from IN on February 23, 2014
I want to install ventless natural gas logs in an already existing fireplace with damper. I don't see anything wrong with doing this. The only problem is heat buid up from the flames under the unit. The only way I can run a gas line to it is up through the cleanout from the basement. The only way to do that is to use the newer flexible gas lines. Can this type of supply line handle the heat buildup?
By Collin C. - NFI Master Hearth Professional on February 24, 2014
Answer:It is indeed possible to install a vent free gas log set within an existing masonry fireplace. You may need to install a hood at the top of the fireplace opening, if there is a combustible mantel located directly above the fireplace opening.
The flexible CSST supply line can be in close proximity to the fireplace, but the change to an unjacketed flexible supply pipe should be made as soon as possible. Any jacketing inside the CSST in the fireplace should be cut back, as it can become too hot.
By Don from Athens, AL on July 1, 2015
What are the differences between the Monessen DIS33G and the DFS32C?
By Will M. on July 1, 2015
Answer:Aside from the lower Btu output and the included blower, the primary difference between the DFS32C and DIS33 is that the DIS33 is a fireplace "insert," meaning that it was designed to be installed in an existing stone or brick masonry fireplace opening and corresponding chimney. While the DIS33 can also be framed with combustible framing as an option, there are subtle differences between the log sets and optional accessories as well. The DIS33 will arrive with a cottage clay liner while the DFS32 lists several options, but will not arrive with this already installed. The DFS32 will also list several options for mantels while the DIS33 will not.
By Connie from Eden Prairie, MN on April 7, 2017
How do I purchase a kit for propane use?
By Will M. on April 7, 2017
Answer:If you have an existing vent free natural gas fireplace and need to convert it to liquid propane, ventless systems are not convertible. Unfortunately, no conversion kit would be available.
By Paulette from Santa Rosa, CA on October 18, 2013
Our vacation cabin in the mountains has had a vent free Napoleon Arlington for about 3 years now and it has been serving me well until this year. Since I relocated it in the cabin, I checked all connections for leaks using the soap and water method and proceeded to light the pilot. I let the pilot burn for a little bit before starting the fire. When I lit the fire it emitted an odor of what I am thinking is propane, but am not sure. I turned the fire off and rechecked for leaks again while the pilot was still on. Still no leaks and by then the odd odor was gone. I re-lit the fire again and had the odor again so I just tuned the fire off and left the pilot on for one day as there was no odor when the pilot was on alone. Can there be a leak inside the stove that I may have caused by moving it? If so, how would I track it down and fix it? Also, I haven't done yearly maintenance on it because it has always worked so well. Could that be the cause of the odor? Any thoughts on what could be causing this odor would be greatly appreciated.
By Chris on October 18, 2013
Answer:I would visually inspect the valve and gas lines for any cracks or defects. If none can be seen, I would have a specialist come out and use a gas sniffer to pinpoint the area in which the gas is leaking from.
By Robert Montgomery from Wakarusa, Kansas on January 6, 2017
I have a Majestic UVC36RP unvented room heater. Serial #B41B0097501161. I am looking for an owners manual with installation instructions.
By Brennan W. on January 6, 2017
That's no problem at all. The product manual for your unit can be found here
By Olga Longi from United States on February 22, 2013
I have an old gas floor heater that I want to take out and install a gas wall fireplace. I do not know which one I can install.
By Tyler M. - Fireplace Specialist on February 22, 2013
If local codes permit it, you can install one of these zero clearance vent-free fireplaces. You may prefer a direct vent fireplace, however. For more information please see our Gas Fireplace and Stove Buying Guide
By Katie from Murfreesboro, TN on October 31, 2012
I am interested in a vent-free fireplace for my home, but am a little confused on how it works. Where does the smoke from the fire go?
By Tyler M. - Fireplace Specialist on November 1, 2012
The primary by-products from a vent-free burner are water vapor and carbon dioxide. The clean-burning technology minimizes exhaust.
For more information, please see the "Vent-Free" section of our Gas Fireplace and Stove Buying Guide
By Steve from St Louis, Missouri on December 2, 2013
Do I have to use the rock wool that came with my Monessen vent free fireplace in order for it to work correctly?
By Collin C. - NFI Master Hearth Professional on December 3, 2013
Answer:Yes. Each manufacturer of vent free appliances provides a certain amount and particular type of embers that are designed not to impede the flame pattern of the burner or release harmful material into the room. Using different or additional embers can cause the release of soot or CO into the room.
By Gary Lombardo from St Louis, MO on December 8, 2012
Do vent-free fireplaces require doors?
By Collin C. - NFI Master Hearth Professional on December 10, 2012
Answer:Most vent free fireplaces are unable to use doors, as they need to be able to readily convect heated air to the room. However, most units will have a safety screen that is placed over the opening in order to serve as a protective barrier.
By Susan from Lambertville, NJ on January 3, 2015
Will it harm my TV if I put it above this fireplace?
By eFireplaceStore on January 5, 2015
Answer:This practice is okay if the proper precautions are taken. One of the following options is the only way to protect the television from damage:
1. Build a recessed alcove in the wall above the fireplace to house the television. This will allow heat to rise past the television, rather than hitting it directly.
2. Mount a mantel shelf above the fireplace and below the television that projects at least as far as the television does. If this option is chosen, you must ensure the mantel is placed high enough above the fireplace to maintain proper clearances specified by the fireplace manufacturer.
By Rick from NC on October 17, 2016
Can a vent-free fireplace be installed flush in an interior room, through an exterior wall, as long as it is enclosed in an insulated water tight structure that will double as an outside barbecue preparation area on an open patio deck?
By eFireplaceStore on October 18, 2016
Answer:Certainly. This enclosure is commonly called a "doghouse" in the industry and is a relatively common way to enclose both vent-free and direct vent fireplaces without sacrificing the floor space in a room.
By Donna from Baton Rouge, LA on November 11, 2014
I have a gas ventless fireplace in my home and I'm not able to burn it more than an hour without the fumes getting bad in my home. It's in the corner of my room with a big empty space behind it in the walls. I'm wondering if it's possible to cut a hole into the top of the fireplace so it can vent into the wall chamber instead of just into my living room. What would you suggest?
By eFireplaceStore on November 11, 2014
Answer:Vent free fireplaces should not be cut or altered in any way, as an excessive release of heat into a combustible wall could lead to a fire. Your best option will be to remove the vent free unit and install a vented model in its place. Direct vent fireplaces are completely sealed from room air and can be vented vertically or horizontally.
By Vicki from TX on October 6, 2014
Is there an advantage to have a glass enclosed vent free insert over an open one?
By eFireplaceStore on October 7, 2014
Answer:There are advantages and disadvantages to both. The glass enclosed vent free models typically offer a cooler surface, as the glass front is double pane, however they do not offer as much heat transfer too the rooms. The safety screen on the open models can get quite hot to the touch, but they offer excellent heat transfer that outperforms the glass front versions.
By Nan from Alto, TX on November 2, 2014
Can the burner in the vent free propane fireplace logs be adjusted to burn a blue flame?
By eFireplaceStore on November 3, 2014
Answer:Unfortunately, no. Vent free fireplaces and log sets are engineered to burn a certain color and cannot be adjusted in any way. Making adjustments carries the risk of causing incomplete combustion.
By Joel from Chicago, IL on December 25, 2013
I have a vent free fireplace that the pilot goes off intermittently. I clean the unit each winter before use. Could there be any other maintenance items that need to be addressed?
By Collin C. - NFI Master Hearth Professional on December 26, 2013
Answer:The only other issue that could be causing this issue is the connection point between the thermocouple lead and the gas valve. Depending on your fireplace, there may be either a pair of lead wires or a solid copper lead that is held in place by a nut. Either way, loosening and cleaning the connection point at the gas valve will often make a difference, as excessive voltage drop can occur at this location and cause the pilot to drop out.
By Chris from Michigan on February 24, 2014
How can I recess my electric fireplace flush with the wall if it emits heat out of a vent that is located on top part of the fireplace. The vent would be in wall and I like the look of it being flush but not sure if it can because of that? Any help or ideas please?
By Tyler M. - NFI Certified Specialist on February 24, 2014
Answer:Because of the scenario you describe, many electric fireplaces cannot be recessed into a wall due to the heat hazard. We recommend checking with the manufacturer of your particular unit for more information.
By Doreen from Pittsburgh, PA on November 15, 2013
Can a gel or electric fireplace be converted to a vent free gas log fireplace?
By Tyler M. - NFI Certified Specialist on November 15, 2013
Answer:No, gel and electric fireplaces can only be used as they are designed. We apologize for this inconvenience.
By Tim Sander from Horse Shoe, NC on December 2, 2016
I have a Superior fireplace box, model CF-3860, with no flue. It has a vent free gas log and burner set in it. It seems to have a covered opening for a flue, but that cannot be opened. Can you identify the fireplace box or provide a manual for it so I have some idea of how safe it is to use for a ventless propane burner? Thanks.
By Brennan W. on December 2, 2016
The only manual I was able to obtain for your unit can be found here
By Robert G. Althoff from Santa Paula, CA on December 17, 2012
What size fireplace do I require for 996 square feet of space, including one sliding door and four large windows?
By Tyler M. - Fireplace Specialist on December 17, 2012
Answer:If you are looking to heat this entire area with a vent-free fireplace, we recommend a unit with a BTU rating of 35,000-40,000 (which is the maximum for a vent-free appliance).
By Vreni Collier from Earlysville, VA on December 31, 2016
We have a propane gas unvented room heater that was installed in November 1997. I would like to know if it is possible to convert it to a remote controlled starter (on and off).
By Will M. on January 2, 2017
Answer:In all likelihood, this will not be possible, however, we would be more than happy to look into this further if the make and model number can be provided.
By Will M. on January 2, 2017
Answer:In all likelihood, this will not be possible, however, we would be more than happy to look into this further if the make and model number can be provided.
By Anne Meissner from Cleveland Heights, Ohio on December 12, 2016
How safe are non-vented fireplaces? How are fumes dispersed throughout the room? Do they differ in the gas burning aspect?
By Will M. on December 13, 2016
Answer:Ventless gas hearth systems are safety tested for safe use without the need for venting, however, these systems will require annual cleanings and are not recommended for anyone with allergies or other breathing conditions such as asthma. Because these systems provide complete combustion with the only byproducts being water vapor and carbon dioxide, they will put quite a bit of moisture into the air and lessen the available oxygen in the home slightly. While they will shut down once the oxygen level around the pilot assembly reaches 19%, this is still not ideal for anyone with asthma, etc. Additionally, newer homes with very tight insulation will not have much of an air exchange with the outdoors. In these cases, the water vapor produced may result in mold. When the system is not cleaned annually, any dust, pet dander, etc. will build up in the burner pan or on the logs. With nowhere to vent, the byproducts will simply burn away into the home, along with their somewhat toxic fumes.
Lastly, if a direct vent fireplace has a 30K Btu input with 70% efficiency, it may be used more frequently to achieve the same level of heat when compared with a ventless systems with the same 30K input as these system are 99% efficient.
By James from Jackson, MS on May 12, 2016
I am looking for a vent less fireplace that can accommodate river rock in the lower price range. What would you suggest?
By Chris C. on May 12, 2016
By Bill from Manville, NJ on September 25, 2013
Why won't either of my remotes work on either of my fireplaces?
By Collin C. - NFI Master Hearth Professional on September 26, 2013
Answer:There could be a number of issues causing this problem, ranging from bad batteries in the remote or receiver, to a defective RF transmitter in the remote. It is always best to first check the batteries in the remote and receiver, then verify if that is the issue. If not, we will need to perform further troubleshooting.
By Mike from New York on November 29, 2012
Are you allowed to have a ventless fireplace in a commercial setting or public forum in New York ?
By Tyler M. - Fireplace Specialist on November 29, 2012
Answer:There are varying degrees of rules and regulations against vent-free appliances across the country, but we are not aware of any in New York state. We recommend calling your local building inspector for more information.
By Virginia from Marion, Indiana on December 9, 2013
We purchased a vent free gas fireplace which comes enclosed in a wood cabinet, which is designed to place against a wall. The top of the gas unit is 14 inches from the inside top of the cabinet. We would like to place our large screen television on the wall above the fireplace. The bottom of the television would be 9 inches from the top of the fireplace cabinet. We also purchased a blower unit to help diffuse the heated air. Is it safe to place the television above the cabinet enclosing the fireplace and is it safe to put the fireplace cabinet against the drywall, or do we need to put some type of shielding material on the wall?
By Collin C. - NFI Master Hearth Professional on December 10, 2013
Answer:While it depends on the manufacturer, every unit that we sell that is designed to be enclosed in an accessory cabinet has all necessary clearances built into the cabinet. This would mean that the cabinet could be placed directly against a combustible wall and there are no restrictions to clearance over the cabinet. If you would like to provide the manufacturer name and model number of the system, I can verify this further.
By Cathy from Exeter, NH on February 7, 2016
Can I put a TV above a vent free gas fireplace?
By Will M. on February 8, 2016
Answer:You most likely will be able to do this, so long as the television can be mounted safely above the fireplace per the manufacturer's minimum requirement for mantel clearances. This information will be provided in the product literature for each gas fireplace offered on our site.
By Al from FL on May 20, 2017
Ventless fireplaces seem unsafe; how are combustion products removed?
By Will M. on May 22, 2017
Answer:When properly installed and maintained, ventless systems offer complete combustion with the only byproducts being water vapor and carbon dioxide.
By Ronald from Howell, NJ on November 29, 2012
Is there a vent free fireplace that is over 50" high?
By Collin C. - NFI Master Hearth Professional on November 30, 2012
Answer:I am not aware of a vent free fireplace that would meet this height requirement. Typically, vent free units have a shorter opening, due to their 40,000 BTU limitation. The extra height would leave a lot of void space that the burner assembly would not fill with flame.
By Lory from NJ on February 25, 2014
We don't a have fireplace, and I want to have one in our living room. What's the best option considering budget? I want to have the look and heat of a fireplace. I'm looking for a 32-36 inches. What would be the estimate cost including installation?
By Collin C. - NFI Master Hearth Professional on February 25, 2014
While installation costs will vary according to local labor rates, we do offer vent free gas fireplaces in the 32 to 36 inch range for as low as $995.40. The model at this price is the Vail Premium Vent-Free Natural Gas Fireplace - 32" - VFP-32-BP20LN
. Despite the low cost, the Vail series of fireplaces is a well-built unit that will serve you well. It is capable of providing supplemental to heat to an area of 800 square feet.
By Terry from Pensacola, FL on January 6, 2013
I have an old fireplace in which I have installed Cedar Ridge vent-free gas logs. The fireplace is a model CRHEB24RT, product # 0112970. I want to purchase a blower for it but I am not sure if I can. If I can, which one do you recommend?
By Collin C. - NFI Master Hearth Professional on January 7, 2013
Answer:Per the supplied model number, these appear to be vent-free gas logs manufactured by ProCom. Whether or not you can use a blower will depend on the model of fireplace you have, as the blower assembly will be housed in the base of the unit. Do you have the manufacturer name and model number of the actual fireplace?
By Arline from Atlanta, GA on November 24, 2015
How many BTU's from a vent free fireplace will I need for a room that measures 30 x 17 - 510 square feet with 8 foot high ceilings?
By Tyler M. on November 24, 2015
Answer:For your room we would recommend a unit with a BTU rating of approximately 18,000-20,000.
By Pam Duncan from Pelzer, SC on November 1, 2016
I converted my wood fireplace to propane gas, however I am not happy because I have a whole going up my chimney. It seems my damper was removed, when I had a wood stove installed Where can I find piece of metal to close over this whole?
By Iridios from Lake Ariel, Pennsylvania on January 14, 2017
I need to replace a propane fireplace that was damaged. What do I measure so that I can get one that is a similar or same size of the one being replaced. I may or may not want to replace the mantle it is in. The model number of the old one is VSGF28PTB/CSGF28PTB.
By Brennan W. on January 16, 2017
Answer:We will be happy to make a few suggestions. Before we do, please provide the front width, rear width, depth, and height of your unit, as well as whether you will be utilizing natural gas or propane and whether or not you would like a remote. We look forward to your response.
By Tom from Mishawaka IN on February 25, 2014
Been thinking of vent free fireplaces, but after talking to a couple of fireplace shops in our area, neither one recommends using them as it has side affects such as soot buildup, adding moisture to the air and if someone in the family has asthma definitely don't purchase vent free. They gave me several articles about people developing headaches and feelings of being generally sick. After taking out the vent free f/p all symptoms went away. They do have them for sale in their shops though.
But there are always two sides to every story and wondering if you can supply me with a unbiased article. After all, we run gas stoves in the kitchen without any issues even on Thanksgiving and Christmas.
By Tyler M. - NFI Certified Specialist on February 25, 2014
As a retailer of various hearth products, we want our customers to know all the facts. With vent-free gas hearth appliances, the issues you mentioned are legitimate concerns and we feel the need to point out those to our customers. You can read our own article here, which will explain this in more detail:
Gas Fireplace and Stove Buying Guide
As to your point about the kitchen appliances, these generally are burning much less overall gas and therefore are not directly comparable to the hearth appliances. Thus, the concerns about vent-free gas are magnified due to the difference in fuel consumption.
By Collin C. - NFI Master Hearth Professional on February 25, 2014
Answer:As you accurately mention, there are indeed two sides to every story. While I do not have an article to provide that gives an unbiased look into vent free appliances, I will be happy to share what I have learned about these appliances from my years in the hearth industry.
Vent free appliances can be a good supplemental heat source, but the problem is that many dealers simply do not take the time to educate the consumer about what they can expect from the appliance. In some instances, a consumer needs to be steered away from a vent free appliance, as they are definitely not right for every situation. With housing and remodeling on the uptick over the past year, many contractors view them as an "easy" way to add a fireplace to a room. They offer nearly perfect efficiency and do not require venting, so their popularity has increased dramatically over the years. Unfortunately, an influx of cheap appliances being installed by these builders also causes vent free appliances to be misunderstood. Hasty installation and poor quality workmanship causes a great deal of problems that are not the fault of the appliance in some cases.
Whether or not a vent free fireplace should be used boils down to a customer being honest with themselves. Are you willing to pay between $100 to $200 every year to have the unit professionally serviced? Does the home the unit is being installed into have low humidity and is it cleaned often? Are the rooms in the home large and fairly open to one another? If you answer no to these questions, a vent free is not for you. One of the biggest issues we encounter is that the vent free unit is not maintained every year, which is crucial to removing dust and lint that is drawn into the unit from the combustion air in the room. A dusty or dirty house or a home with many pets makes the situation worse. The air shutter in the unit quickly becomes clogged, causing an uneven and dirty burn, which results in the release of soot and potentially harmful material back into the room. Small rooms also have limited oxygen to supply and can make the problem worse.
On the other side of things, vent free appliances can be an excellent addition to a home that is cleaned regularly and has rooms that average 14 x 14 or 15 x 15 at least. The limited amount of dust the unit draws in and larger space allows what little combustion byproduct the unit produces to dissipate properly, having less effect on air quality. Initial installation of an appliance is also important. Close attention to placement of the log set and embers will also help to ensure that flame impingement does not occur.
In conclusion, vent free appliances can be a good supplemental heat source in the right scenarios. As I mentioned earlier, a full explanation of the intended purpose for the unit is warranted before a decision can be made. If your scenario meets the criteria explained earlier and you are still interested in using an unvented appliance, I will be happy to assist you further and discuss details of your installation.
By Steve from Angel Fire, NM on April 15, 2015
I would like to buy a 36 inch propane vent free fireplace that can be controlled by a wall mounted thermostat and that has a blower. Can you help me this kind of fireplace?
By Brennan W. on April 16, 2015
By Jo Ann from North Carolina on December 25, 2016
I have a ventless gas fireplace, but where I moved they only have propane. What do I need to convert it?
By Chaz on December 26, 2016
Answer:That depends on the manufacturer and model of your unit. If you can provide us with both of those, we can check to see if we are able to get a Natural to Propane Conversion kit.
By Tim H from Shenandoah, Iowa on November 30, 2012
If I have a wood burning fireplace and I want to hook up a gas line and do a glass pebble fire with the arch style burner, does it have to be vented?
By Collin C. - NFI Master Hearth Professional on November 30, 2012
Answer:This type of setup would indeed need to be vented. There are a limited number of vent free burners available for glass beads, but they do not allow the burner itself to come in contact with the decorative media. Rather, the media would be placed out in front of the burner, with the burner flame functioning as more of a backdrop.
By Boo from Pomona, NJ on December 13, 2016
I have a ventfree propane fireplace. I now have natural gas at premise. Can I get a natural gas thermostat gas valve assembly, and gas regulator to transition my fireplace from propane to natural gas?
By Will M. on December 13, 2016
Answer:Unfortunately, vent free hearth systems are not convertible.
By Glenn from NV on August 8, 2013
I'm looking for a 42" or 48" vent free fireplace that has a sealed glass front or has an option to add glass doors. Do you have anything like this?
By Tyler M. - NFI Certified Specialist on August 9, 2013
None of our vent-free fireplaces offer the ability to have a sealed glass front or glass door assembly. This is due to the nature of vent-free gas appliances; they must be open to the room in order to "breathe," as there is, of course, no vent pipe. We offer a variety of large direct vent gas fireplaces
that do have a solid glass panel, but of course these models require venting. For more information, please see our Gas Fireplace and Stove Buying Guide
By Dawn Booth from South Jersey on February 14, 2013
I wanted a natural gas media storage fireplace. I only see electric - is it that they don't make gas? Something with the heat and electronics maybe? I'm new to this and wondering if I'm chasing something that doesn't exist.
By Tyler M. - Fireplace Specialist on February 14, 2013
Answer:There are no vent-free gas fireplace media cabinets available, due to the amount of clearance required for a vent-free gas fireplace around the opening, and especially over the top opening (where the vast majority of heat emits).
By Cheryl from Dunbar, PA on January 9, 2015
I have a model VDCFRNB which I had installed approximately 4 years ago. The pilot light will not stay lit. Is there something that I can do? Does something need to be cleaned?
By Chris C. on January 9, 2015
Answer:I would first suggest using either an emery cloth or 1500 grit sandpaper to clean any carbon deposits or other impurities from the thermocouple and thermopile on the pilot assembly. Additionally, follow the connections from the base of the pilot assembly back to the valve and ensure that the connections are tight. The thermocouple may thread directly into the base of the valve. You may try to loosen the nut securing the line to the valve, and use the same emery cloth or sandpaper to lightly clean the contact point. When re-tightening, turn the nut hand tight, then use a wrench to only tighten another 1/4" turn at most. If these procedures do not remedy the issue, I would suggest having a technician come out to check the thermocouple and thermopile to ensure that they are still producing the correct milivolts allowing the valve to remain open once the pilot flame is lit.
By Allan from Southern New Jersey on May 21, 2014
I have a propane unit I want to convert to natural gas. Can I make the change without changing the whole Napoleon insert that I have now? The insert is about 2008-9. The unit is ventless and is a Napoleon.
By eFireplaceStore on May 21, 2014
Answer:Unfortunately, vent free appliances cannot be converted between fuel types. Because of the potential danger of an improperly orificed appliance, the manufacturer produces and certifies each appliance to use only the fuel type that it is originally configured to burn. I apologize for the inconvenience.
By Michael from Rex, GA on November 17, 2013
I need a gas vent free fireplace for my 1000 square foot basement. My gas furnace is in the basement. Do you have any recommendations?
By Chris on November 17, 2013
I would suggest one of our 36" vent free fireplaces to effectively heat your basement. A model such as the Empire Vail
would be a great addition to your basement.
By Warren from Memphis, TN on December 10, 2012
Is there a recessed vent-free propane heater available that's thin enough to be mounted in a standard 2"x 4" wall? The desire is to have a heater that has the appeal/look of these flush mounted recessed electric heaters, only with propane.
By Tyler M. - Fireplace Specialist on December 10, 2012
Unfortunately, all of our vent-free heaters are wall mounted or free-standing units. Most of our vent-free fireplaces
can indeed be recessed, however.
By DeJuan from NC on August 9, 2013
If I have a wood burning fire place, can I install propane gas logs in it with out any issues?
By Dawn H. on August 9, 2013
Answer:Yes, you can. You need to make sure you select the proper size.
By James from Oklahoma on December 27, 2013
How do vent free fireplaces work?
By Collin C. - NFI Master Hearth Professional on December 27, 2013
Answer:Vent free fireplaces operate without a standard venting system. They accomplish this by using a highly engineered burner assembly that meters air to fuel very precisely, ensuring that all fuel is burned completely, releasing a minimal amount of byproduct. The burner assemblies are also limited to 40,000 BTUs for indoor applications. This also helps to ensure that the flame is kept small enough to burn cleanly. Because they pull their combustion air from within the home, it is important to have the unit serviced on a yearly basis. This will help to ensure that dust and dirt do not build up and cause the burner to operate improperly.
By Adam from Troutman, NC on August 18, 2014
Can this type of fireplace be installed in an outside wall but with a glass window wall above it?
By Tyler M. on August 18, 2014
Answer:Yes, any of our vent-free fireplaces can be installed without a chimney. Some use gas and others are electric. Please let us know if you have questions about any specific model(s).
By Art from Mashpee, MA on September 18, 2013
Do vent free gas fireplaces require electricity? I am looking for a heat source in the event of a power outage.
By Collin C. - NFI Master Hearth Professional on September 18, 2013
Answer:Almost all vent free fireplaces use a standing pilot and do not require voltage to operate. Only if the unit states that it is electronic ignition does it require power. Even so, most of these units have a battery backup that would allow operation in the event of a power outage.
By Cindy from NC on January 28, 2014
Our unit has started making a beeping noise from the thermostat box. What might be causing this?
By Tyler M. - NFI Certified Specialist on January 28, 2014
Answer:This sound may indicate an overheating of the thermostatic remote receiver.
By Dave from KY on January 21, 2014
I have a vented see through fire box with vent free logs (I don't know why). I want to build a top and trim the box out. The box has stand offs which are the same height as the vent pipe. Can I remove the vent pipe/flue, cover the hole with fireproof material/insulation, and build a top on the set offs? The whole unit was given to me and I want to use it as a peninsula fireplace with a bookshelf at one end. Can you help me?
By Collin C. - NFI Master Hearth Professional on January 21, 2014
Answer:Unfortunately, this firebox cannot be safely modified in this way. Any box that is produced from the factory with a flue collar must have a working chimney system installed, even if vent free logs are used inside the box. This is because some heat is expected to draft up the chimney flue and unless the entire upper chassis of the fireplace is rebuilt with a sealed metal enclosure, it would be difficult to guarantee that the unit will operate safely. Depending on the brand of the box, we may have the chimney piping available to vent it.
By Bill Wilson from Hubbard, Oregon on January 15, 2017
We purchased a home with a Superior fireplace that vents to the outside without a chimney. It is wonderful and quiet, but cannot find out how to open the glass front so I can clean the inside of the glass. House is 10 yrs old and previous owner left no information.
By Brennan W. on January 16, 2017
Answer:We will be happy to make a few suggestions. If you could, please provide the manufacturer and model number of your current fireplace. We look forward to your response.
By Kim on November 9, 2012
Are there restrictions as to what rooms and altitude vent-free fireplaces can be used? At least one manufacturer has stated that they are not permitted in bedrooms, bathrooms, and altitude greater than 4,500 feet. Is this unique to their
line or are these standard requirements?
on November 9, 2012
Answer:There are indeed standard requirements for vent-free appliances. These are as follows:
1. No vent-free appliance shall be used in a bathroom.
2. No vent-free appliance, greater than 10,000 BTU input, shall be used in a bedroom. Some manufacturers do not allow use in a bedroom, period.
3. Most vent-free appliances do not perform well above 4,500 feet, due to the lack of oxygen. A few manufacturers do offer a "high altitude orifice" to remedy the issue, but this is usually only effective to 7,500 feet. I do not recommend using a vent-free appliance above this elevation.
By Zach Goudy from Vincent, Ohio on October 26, 2012
I am looking for a gas fireplace insert for an original non-working fireplace. I am curious as to whether this is possible. The opening I have is 20 inches wide by 30 inches tall.
By Collin C. - NFI Master Hearth Professional on October 29, 2012
Answer:My apologies, but we do not carry a fireplace insert that could fit into a 20 inch wide opening. Our smallest model would require at least 24 inches to fit properly. Because of the tall, narrow size of your fireplace, it will likely be difficult to find an insert that could fit your needs.
By James on November 9, 2012
Hi, we have an antique wooden mantle, and want to get a fireplace vent-free insert. The mantle opening is 35.5" wide and 43.5" tall. We would like to know how much (if any) top and clearance should be accounted for when sizing a firebox? Can the firebox go behind the mantle opening, if we purchased a firebox that is 36" wide (outside)?
on November 9, 2012
Answer:Most vent-free fireplaces do require some level of side and top clearance to combustible material. They will also have a chart that shows the minimum acceptable angle of combustible material to the face of the fireplace. The further back the fireplace is position in a mantel or combustible enclosure, the further away the combustible material has to be from the face.
Is this mantel being installed around and existing masonry fireplace that the insert will be pushed into, or will you be framing the fireplace into a wall? Please advise.
By Vito on November 9, 2012
I'm looking to buy a vent free natural gas fireplace but I don't want the surround, only the logs and burner and all the gadgets that come with it. I need a very big one to fit inside a big fireplace. Please send pictures - it must be very nice and look real.
on November 9, 2012
Per your description, it would appear that you require a vent-free log set, rather than a true fireplace. I am not certain of the exact size of the unit you are fitting the logs into, but below are a couple links to the largest vent-free sets that we carry:
vent-free Log Set 1
vent-free Log Set 2
These are some of the most popular sets that we carry. Please advise if you have any questions about either.
By Robyn on November 9, 2012
I'm looking for a high efficiency heating appliance that I can insert in an existing ancient fireplace. The chimney is cracked, and rather than fixing it, only to have most of the heat escape with a traditional fire, I'd prefer to install a ventless natural gas appliance.
I have looked around your site but I'm having trouble coming up with a complete system, (along with the price tag.) I'm assuming I'd need a box, logs, maybe a blower? Do you have a whole system you can recommend?
on November 9, 2012
We do indeed have appliances that fit your criteria. You'll want to check out our vent free inserts. Finding the right appliance boils down to the size of your current fireplace. Please follow the below link to view our insert options.
Vent-Free Fireplace Inserts