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    Natural Gas and Propane Fireplace Inserts

    Traditional wood-burning fireplaces add ambiance to a home, but they also add the work and fuss of bringing in wood and cleaning out ashes. Gas fireplace inserts are a fast and efficient way to keep the feel of a fireplace in your home while eliminating the high maintenance of a wood-burning fireplace. Modern gas stove inserts beautify your home as well, adding a well-designed modern touch to the traditional fireplace look. eFireplaceStore.com carries a number of models from popular manufacturers, such as Empire Innsbrook and Napoleon.
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    50 Questions & 47 Answers
    Joe
    from WA asked:
    September 7, 2017
    How do I proceed with installation?
    1 Answer
    For gas inserts and log sets, we typically recommend contacting local plumbing and heating/air conditioning companies, most of which staff gas fitters/technicians that can do the installation work.
    Tyler M.
    on September 7, 2017

    Connie
    from New Braunfels, TX asked:
    April 19, 2017
    Is there significant difference in performance between vented and non-vented gas inserts?
    1 Answer
    While there theoretically would be no difference between vented vs. vent free with proper installation and maintenance, ventless systems are subject to requiring additional care due to the oxygen depletion sensor and the fact that any unburned byproducts of combustion will simply burn off into the home and not through the chimney system. If the ODS becomes clogged and/or the gas controls are dirty, you will experience operational issues with both the pilot and burner. Of course, these issues are prevented with proper maintenance and cleaning. I will also note that there will be eventual issues with any ventless log set purchased with ceramic fiber logs as this material will eventually break down, requiring replacement of the logs themselves. If you do choose to purchase a ventless log set, I highly recommend selecting a log set with solid refractory ceramic construction as these logs will last a lifetime.
    Will M.
    on April 19, 2017

    Clayton
    from Florence, AL asked:
    February 13, 2017
    I have a WHGC32F-DC mantle and I need a firebox insert that fits this mantle. Which one works? Thank you.
    1 Answer
    Please note that your question was submitted in response to our fireplace insert category and fireplace inserts are designed specifically to be installed into an existing prefabricated wood burning or masonry fireplace, however, the mantel you have described was designed for use with the Majestic/Monessen BDV400 product line and, without specifications for the mantel, we would not be able to locate a compatible fireplace or firebox, as the BDV400 has been discontinued.
    Will M.
    on February 13, 2017

    Sky
    from Gig Harbor, WA asked:
    February 5, 2017
    Will this work with a zero clearance fireplace framing?
    1 Answer
    Our inserts are only meant to be installed inside existing masonry fireplaces.
    Brennan W.
    on February 6, 2017

    Danny Fred
    from Novato, CA asked:
    January 16, 2017
    I currently have a wood burning fireplace with a very good chimney. I want to replace it with a gas insert with a remote control. What should I be looking for in a moderately priced unit that is remote operable?
    1 Answer
    Are you looking to completely replace the unit, or are you looking to put an insert in the opening of your fireplace?
    Brennan W.
    on January 17, 2017

    Jim Fauth
    from Malta, MT asked:
    January 14, 2017
    We are looking to replace our existing fireplace insert. The opening measures 39.5 wide,31 high and 15.5 deep. We need propane and our present venting is direct 4".
    1 Answer
    Is your current liner a single flue or direct vent double flue for air intake and exhaust?
    Brennan W.
    on January 16, 2017

    Jim Craig
    from Wilmington, IL asked:
    January 12, 2017
    I am looking for a see-through fire place insert.
    1 Answer
    Unfortunately, we do not carry any see through inserts.
    Brennan W.
    on January 13, 2017

    Kelly
    from Lake Oswego, OR asked:
    January 12, 2017
    I am looking for a gas insert for a 35" (w) X 21" (h) opening. Does a contemporary styled one exist? I am raising the carpet floor to extend te hardwood and need to build up my hearth.
    1 Answer
    I do indeed carry an insert that could fit your opening, which can be found by following the link below: Empire Loft Direct Vent Gas Fireplace Insert with Intermittent Pilot - 20,000 BTU
    Brennan W.
    on January 13, 2017

    Nicolas Marton
    from Woodlan Hills, CA asked:
    January 9, 2017
    Could you please ID this fireplace insert (gas) the house was build in 1991. I am looking for rear fire brick replacement. The picture illustrate the damage. Let me know. Thank you Nicolas
    1 Answer
    You could use our Hargrove replacement panels you can cut to fit.
    Owen
    on January 9, 2017

    Nicolas Marton
    from Woodlan Hills, CA asked:
    January 9, 2017
    Could you please ID this fireplace insert (gas) the house was build in 1991? I am looking for rear fire brick replacement. The picture illustrates the damage.
    1 Answer
    You could use our Hargrove replacement panels and cut them to fit.
    Owen
    on January 9, 2017

    Nicolas Marton
    from Woodlan Hills, CA asked:
    January 9, 2017
    Could you please ID this fireplace insert (gas) the house was build in 1991. I am looking for rear fire brick replacement.
    1 Answer
    You could use our Hargrove replacement panels that can be cut to fit.
    Owen
    on January 9, 2017

    Roberts Properties
    from San Luis Obispo, CA asked:
    January 9, 2017
    I am looking for a gas insert for an existing fireplace, to replace the old floor furnace as a heat source for an old Victorian house. It just needs to be basic black design, efficient and thermostat controls, with a blower so that tenants can use it easily.
    1 Answer
    For clarity, please confirm you will be removing the floor furnace and just want to add another supplemental heat source in the home. I would assume you will be framing out an opening in a different location to vent whichever fireplace you eventually purchase through the roof or through a wall. If the flame aesthetic and overall appearance is not important when compared to heating efficiency, I would recommend a product like the Empire DV25SG Direct Vent Gas Wall Furnace - Natural Gas - DV-25-SGNAT with the optional blower installed. If you are wanting a fireplace to frame out and finish as you please, please confirm. We will need to know the square footage and ceiling height of the space you would like to heat in order to make recommendations.
    Will M.
    on January 10, 2017

    Dan
    from Seattle, WA asked:
    January 1, 2017
    I want a natural gas-burning insert that would utilize my existing wood fireplace and chimney. I want one with an intake vent for the combustion gases. I don't want one that pulls the combustion gases from the room. What is the standard nomenclature for this type of venting system? Do they require punching a hole through the external wall of my house? (And even the existing firebox?)
    1 Answer
    While there is no standard nomenclature for the various brands of flexible venting used with direct vent inserts as this will vary depending on the manufacturer of the insert itself, direct vent fireplace inserts utilize co-linear (side by side, typically 3" in diameter) flexible aluminum chimney liner which is typically sold in kits, including the liner, top plate, cap and any clamps needed. As you have described, one 3" liner is responsible for exhausting flue gases and one liner is responsible for the exhaust. As both liners must exhaust vertically through an existing stainless air-cooled chimney for prefabricated wood burning, or clay lined flue with masonry, you cannot cut a hole through the existing firebox for the exhaust or intake air. Additionally, direct vent insert manufacturers require the existing wood burning system to remain mostly intact and this would render the fireplace and chimney no longer functional for wood burning. To locate models that will work for your installation, please provide the make and model number of your fireplace, in addition to the overall chimney height, measured from the hearth floor inside the fireplace opening.
    Will M.
    on January 2, 2017

    Pat Sutherland
    from Southampton, MA asked:
    December 29, 2016
    I have a Jotul natural gas stove for heating, that has a manual push button ignition switch. Do they make fireplace inserts with that type of igniter? We bought that type so we wouldn't have to rely on electricity. If so, can you recommend one to heat about 1500 sq feet?
    1 Answer
    For a space of this size, you would need an insert with a BTU output of roughly 52,500. As the inserts we offer have a maximum BTU input of 40,000, we would not be able to offer anything capable of effectively heating the space you describe. Additionally, the inserts that offer a BTI input in this range are non-standing pilot electronic ignition systems. While mostly reliant on 120v, these systems also include a battery backup that will provide ignition and operation for up to 6 months. For a millivolt (standing pilot) system like what you currently have, the Empire Large Innsbrook Direct-Vent Clean Face Fireplace Insert with Blower - Millivolt Controls would be my recommendation. This model offers a max BTU output of 30,000, which would heat a space of roughly 857 square feet with standard 8' ceiling height. Also, please note that the front width, rear width, depth and height of your fireplace opening will need to be measured and compared to the minimum hearth requirements for each insert we offer to ensure the insert will fit into your opening.
    Will M.
    on December 29, 2016

    Catherine Pinkas
    from Walnut Creek, CA asked:
    December 24, 2016
    I need a vented fireplace for my small California duplex unit. It needs to be California certified and childproof. Do you work with any local installers in the Walnut Creek area of California? My budge is $2,000.
    1 Answer
    I would need the dimensions of the opening to help narrow down for you the unit(s) that would best suit your needs. As far as local installers in your area, I do not know of any personally. However I could direct you to a list of local Certified installers/techs in your area.
    Owen
    on December 26, 2016

    Fred Schenker
    from Gettysburg, PA asked:
    December 17, 2016
    My fireplace insert has 2 fans for warm air distribution. One of the fans is broken. I need a replacement fan. it is a Bomax115V model # 904-5453.
    1 Answer
    Unfortunately, we do not have access to a proper replacement fan for your unit.
    Brennan W.
    on December 19, 2016

    Barbara
    from Woodland, CA asked:
    December 17, 2016
    How do we measure size, width, and height?
    1 Answer
    We will need the front width, rear width, depth, and height of your fireplace opening.
    Brennan W.
    on December 19, 2016

    Doug
    from Chicago, IL asked:
    December 13, 2016
    Do they make L shaped inserts for a front and left side opening for a gas vented fireplace?
    1 Answer
    Fireplace inserts are only offered for standard, single-sided fireplace openings.
    Will M.
    on December 13, 2016

    Megan
    from Gresham, Oregon asked:
    December 11, 2016
    I have a current unit 22 " tall and 26" across. Can you email me a list of inserts that would easily fit (with a price list)?
    1 Answer
    If this is a true fireplace insert, meaning that it is installed into an existing wood burning fireplace (prefabricated or masonry), we will need to know the existing hearth dimensions with the insert removed to provide a full list of what will fit inside your opening. Without this, the make and model number of the existing insert may be a starting point to look into models with the same or smaller minimum hearth opening requirements.
    Will M.
    on December 12, 2016

    Natalie Jackson
    from Jacksonville, FL asked:
    December 10, 2016
    I have a three-sided 25 year old built in fireplace in my bedroom that no longer works. It was originally purchased from Gas Technologies INC. It is a vented decorative appliance which used propane gas. The serial is PDVL1078. Do you know of any units that could replace it?
    1 Answer
    Gas Technologies Inc was a short lived spin off of Heat N Glo. Unfortunately, the serial number did not provide me with any specifics on the unit. Are you able to find a model number as well? Please advise when you can.
    eFireplaceStore
    on December 12, 2016

    Tonya Noss
    from Ft. Worth, Texas asked:
    December 9, 2016
    We have a gas fireplace, but have never installed fake logs or even used it. We would like one with a blower to use for heating our home. Is that possible with a gas line to have an insert? We have a chimney. Size front width across 35-1/2" with 19-3/4" with at back of box, depth is 15-3/4".
    1 Answer
    We will be happy to help. If you could, please provide the height of the opening and clarify whether you will be using natural gas or propane.
    Brennan W.
    on December 9, 2016

    Patricia Goforth
    from Edmonds, Washington asked:
    December 6, 2016
    Our house has a gas line piped into the fireplace. We now are in need of a fireplace insert or logs (or both). We have 2 fireplaces (in 2 locations), that both require inserts. I need some help to understand what to buy and how to have it plumbed correctly.
    1 Answer
    As an online retailer, we do not provide any in-home consultations and are only able to give technical advice via phone or email. Additionally, any pipe sizing recommendations or installation of gas pipe should only be provided by a locally licensed plumber or gas fitter. Any hearth-specific retailer will only be able to provide technical guidance after properly sized gas pipe has been installed by a locally-licensed gas fitter or plumber. If this has already been done (I apologize as the original question was unclear), I recommend choosing a fireplace insert based on your hearth opening measurements for each fireplace. If you are able to provide the front width, rear width, depth and height for each opening, I will be able to narrow down the selection and locate an inserts that will suit your needs. If you would like to reach me (Will M.) directly, please dial 1-800-203-1642 ext. 404.
    Will M.
    on December 6, 2016

    Joe
    from Pennsylvania asked:
    December 4, 2016
    I am looking for a unit that will fit in and opening 35" (wide) by 26" (high+ and 19" (deep); 30 to 35,000 BTU. It uses two 3" flex pipes, one for intake and the other for exhaust. What do you have that would meet these requirements that works with propane?
    1 Answer
    I will be happy to make a recommendation. Are you looking for an insert that is more classic with a log set, or one that is more linear and contemporary?
    Brennan W.
    on December 5, 2016

    Linda
    from Las Vegas, NV asked:
    December 4, 2016
    I have a wood burning fireplace with a 10" flue. It is also set up to use propane, however I have been burning wood in it. I would like to switch to natural gas (to give myself the ability to turn it on and off when I want to). Can I use the burner and logs from my propane set-up with natural gas or does the burner need to be modified in some way?
    1 Answer
    You would indeed need to convert the unit over to natural gas using a kit that swaps orifice. If you could, please provide the manufacturer and model number of your set and I will be happy to look into the availability of a conversion kit.
    Brennan W.
    on December 5, 2016

    Robert
    from 80013 asked:
    December 4, 2016
    Which natural gas insert models could continue to operate if the electrical power goes out?
    1 Answer
    You would want to go with one of our millivolt units, that has a standing pilot and can operate without electricity.
    Brennan W.
    on December 5, 2016

    Kelly
    from Chippewa Falls, WI asked:
    December 1, 2016
    When you specify a 34" fireplace, what are you measuring? How do I measure my fireplace; with the face is 40" wide by 29" tall?
    1 Answer
    The sizes indicated in a unit's title generally refer to the size of the opening. All of our inserts will have minimum fireplace opening dimensions listed.
    Brennan W.
    on December 2, 2016

    Marion Frippe
    from Woodbridge, VA asked:
    November 30, 2016
    I have a wood fireplace. What model insert is best: vented or unveiled?
    1 Answer
    Will you be using it more for heating, or for decoration?
    Brennan W.
    on December 1, 2016

    Anne Broughton
    from San Francisco, CA asked:
    November 18, 2016
    I need a gas fireplace insert for a "hole in the wall" of 21.5 inches wide by 29.5 inches tall. The insert can be slightly smaller, as we can fill the space/cover the space. What products are available for me?

    Scott Satterlund
    from Rockville, MD asked:
    November 9, 2016
    Are there types of Natural gas burning areas other than log sets, stones, crystals and fireballs for the gas insert into an old wood burning fireplace? I thought I have seen some contemporary gas fireplaces that use concrete balls or other types of fixtures for viewing burning flames. I attach stones, balls and straight flame with clever wood charred background.

    Jason
    from Richmond, VA asked:
    October 29, 2016
    My fireplace opening is 42 1/2" wide in front, 33 1/2' wide in back, 28 1/2" high and 22" deep. Which size gas fireplace inserts should I be seeking?
    1 Answer
    Gas inserts are made to accommodate common fireplace opening dimensions, so most will simply choose an insert based on other factors. All of our inserts will work with your dimensions as they exceed the minimum hearth requirements.
    Will M.
    on October 31, 2016

    Stephanie
    from Seattle, WA asked:
    October 28, 2016
    Can you clarify the difference between vent vs. vent-free?
    1 Answer
    The difference between vented and vent free are that a vent free unit operates at a level of efficiency which allows it to draw combustion air and exhaust into the room, but a vented unit will need venting to remove exhaust and draw in air. These units can be installed by a general contractor or plumber.
    Brennan W.
    on October 28, 2016

    George M
    from GA asked:
    October 25, 2016
    Do you have any gas inserts for arched fireplaces? Our fireplace is a stone arched fireplace (41"X 26").
    1 Answer
    We will not offer any inserts specifically made for fireplaces featuring a curved arch design. I recommend simply locating an insert that fits and then fabricating a shroud to cover this arch, should one of the optional surrounds not cover this space.
    Will M.
    on October 25, 2016

    Spencer
    from Jonesboro, AR asked:
    October 20, 2016
    What exactly do I measure to determine the right size gas fireplace for my wood burning fireplace?
    1 Answer
    While many gas insert manufacturers only request the front width, rear width, height, and depth, I highly suggest measuring the front height and rear height as well, as most all masonry will have a shallow depth at the top of the opening that slopes towards the back wall. Without factoring this in, customers may receive an insert that will not push all the way into the fireplace opening. This is more of an issue with wood burning inserts, but it is always better to be certain prior to ordering. Also, more detailed minimum hearth requirements are provided in the installation manual for each insert.
    Will M.
    on October 21, 2016

    Matt
    from Basking Ridge, NJ asked:
    October 19, 2016
    Do you sell Heat & Glo Gas Inserts? I see you sell Majestic and they are both owned by Hearth and Home.
    1 Answer
    Unfortunately, we do not have access to appliances and parts under the Heat and Glo name.
    Chris C.
    on October 20, 2016

    Gina
    from Norwalk, CT asked:
    October 12, 2016
    How do I know what size to get? Do I measure the front opening? The back width? The depth? The height?
    1 Answer
    To determine size, you will need the front width, rear width, depth, and height, as well as whether you will be using natural gas or propane. From there, we can assist you.
    Brennan W.
    on October 12, 2016

    kathy
    from upstate new york asked:
    October 12, 2016
    I am looking for an appropriate gas fireplace insert to replace a wood burning fireplace in our living room on the main floor. Unfortunately, the existing shape of the fireplace masonry is 1/2 of an oval (see picture). In our finished basement, right below the wood fireplace is a fireplace gas insert unit that works well. Can you make any insert recommendations and include their models?

    Pat
    from Beaverton, OR asked:
    October 2, 2016
    My existing fireplace is 36" across: 19" deep an 26" high. What is the measurement that determines size?
    1 Answer
    It is the width measurement that narrows down the overall search results.
    Chris C.
    on October 3, 2016

    Carl
    from Campton, NH asked:
    June 12, 2016
    Does the trim kit fit on the face of stone surround?
    1 Answer
    The surrounds used to cover the opening left between a gas fireplace insert chassis and fireplace opening will indeed attach to the stone or brick facing of a fireplace.
    Will M.
    on June 13, 2016

    Teri-Lynn
    from RI asked:
    March 20, 2016
    I have an old wood burning stove that is not sealed well and is very inefficient. It has a stove pipe that goes outside. Can I put in a propane insert?
    1 Answer
    A much better option may be to install a Direct Vent Stove in it's place. Black direct vent pipe may be run to the existing ceiling support box with the remaining chimney relined with flexible aluminum liner.
    Will M.
    on March 21, 2016

    Kevin
    from Buffalo, NY asked:
    January 12, 2016
    I am looking for a ventless gas fireplace insert that will fit into an opening that is 25 x 25 x 16(depth). Do you have anything of this size?
    1 Answer
    The Napoleon GDIZC Direct Vent Gas Fireplace Insert - GDIZC-NSB will work with a minimum fireplace opening of 25"W x 141/2"H x 11"D.
    Will M.
    on January 12, 2016

    Steve
    from Winchester, VA asked:
    January 9, 2016
    What is the difference between vented and vent free propane gas fireplace inserts?
    1 Answer
    Vented fireplace inserts will generally be sealed with a pane of glass and use a pair of 3 or 4 inch liners that are routed up the chimney. One liner will pull combustion air from the outdoors, while the other will vent exhaust gases. The vented systems do not effect air quality. Vent free units are completely sealed from the chimney and vent all heat into the room. The are carefully built to avoid off gassing of dangerous byproducts into the room, but consideration must be made on room size and location.
    eFireplaceStore
    on January 11, 2016

    Frank
    from Brockton, MA asked:
    January 2, 2016
    What size of insert should I get for a fireplace that's dimensions are back 24 1/2 inches by 32 inches in the front and 20 inches deep?
    1 Answer
    The Kingsman VFI25 Vented Fireplace Insert would appear to work with these dimensions.
    Will M.
    on January 4, 2016

    Janet
    from Chicago, IL asked:
    November 17, 2015
    What is the proper way to measure for a replacement liner? I have a homemade fireplace and the brick liner has cracks in it. I would like to install a new liner but I'm not sure how to properly measure the interior of the fireplace.
    1 Answer
    Because the unit is a non-listed unit, you will indeed have to take detailed measurements. You will need to measure the depth at the top and bottom of each side, as well as the height at the front and back of each side. The back panel will need to be measured for the height and the width at top and bottom.
    eFireplaceStore
    on November 17, 2015

    Robert
    from North Kingstown, RI asked:
    November 4, 2015
    What is a Fireplace Barrier Screen?
    1 Answer
    Direct vent fireplaces manufactured after January 2015 now require the use of a barrier screen which is simply an fine expanded metal mesh which covers the glass of the appliance. The screen is a safety measure to ensure that the glass cannot be touched so as to avoid burns.
    Chris C.
    on November 4, 2015

    Louisa
    from Long Island, NY asked:
    October 18, 2015
    Can a firebox sit directly on a laminated wood floor?
    1 Answer
    These fireplace inserts are only meant to be installed directly into an existing masonry fireplace.
    Brennan W.
    on October 19, 2015

    Joe
    from Virginia Beach, VA asked:
    February 25, 2015
    We have a high efficiency gas hot air furnace. When the electricity goes off during a storm the furnace shuts down so we have no heat in the house. Can a gas fireplace or gas stove insert could be used for backup heat to keep the house warm? The house is on a concrete slab. We have a brick wood-burning fireplace (which we have not used in years) that could accommodate a fireplace insert. Would the gas fireplace insert or a gas stove need electricity to operate and to generate heat into the living space. Does the fireplace need a blower fan to push heat out into the living space? If electricity is needed, is there a backup battery system available that would kick on the igniter and/or operate the blower fan?
    1 Answer
    A gas fireplace insert can indeed be installed to serve as a back up heat source to maintain high enough temperatures in the home to prevent plumbing failure. Most inserts use either a standing pilot or an electronic ignition system with a backup battery, so a power outage would not effect them. They produce good radiant heat on their own, with the fan helping further. However, the fan must have a 120 volt power source to operate.
    eFireplaceStore
    on February 25, 2015

    James
    from Lyndeborough, NH asked:
    February 8, 2015
    Can I use an Empire DV35IN33L direct, through the wall, vent kit for my house that has vinyl siding?
    1 Answer
    Unfortunately, no. This insert is designed for installation into a masonry or prefabricated fireplace and cannot be vented horizontally through an outside wall. Flexible 3 inch liners must be used instead.
    eFireplaceStore
    on February 9, 2015

    Bob
    from Waco, TX asked:
    January 13, 2015
    Can a propane line be run from an open patio through the attic of the house and into the existing chimney to fuel a propane fire place insert. I have an all electric home and wood burning fireplace I would like to convert it to propane. Would this be safe and legal?
    1 Answer
    Because the chimney would be used to house the venting system of the insert, I do not recommend running the propane supply line within the chimney. Heat buildup could eventually cause an issue and potentially damage the line. If the fireplace is on an interior wall, the adjacent wall to the unit would have to be opened up to run the gas line.
    eFireplaceStore
    on January 13, 2015

    Bob
    from NJ asked:
    December 19, 2014
    Do I need an insert if I am converting a woodburning fireplace to natural gas with just a gas log fixture and if it has a working chimney and flue?
    1 Answer
    An insert does not necessarily have to be used. If the firebox is in good condition, a gas log set can be installed and used with your existing chimney. However, a fireplace insert would be a good addition for heat. Direct vent and vent free inserts heat much more effectively, but if ambiance is the main goal, a vented log set will work well.
    eFireplaceStore
    on December 19, 2014

    Michael
    from Lakeland, FL asked:
    December 15, 2014
    My Empire Innsbrook large direct vent gas fireplace insert (CUI-DV35IN33LP) makes an annoying hum when the fan blows. The noise is present at all times and varies in intensity depending on the fan speed set. It is most quiet at middle fan speeds. The noise in louder and more obnoxious while the blower is operating after the flame goes out and the unit is cooling down. Do you have any suggestions to help quiet the noise?
    1 Answer
    Because of its high resistance to heat, it is best to use small pieces of felt between the blower housing and the chassis of the unit. The hum is most likely being transmitted through the unit by metal on metal contact and the felt can serve as a buffer to quiet the noise.
    eFireplaceStore
    on December 16, 2014



    Modern natural gas or propane fireplace inserts come in two primary forms. Most inserts are "vented" models, which simply means they require access to outside air via a chimney, flue, or dedicated vent in order to carry away the vapors produced in combustion. Among these models are some of eFireplaceStore.com's bestsellers, including the Napoleon GI3600 Natural Vent Gas Fireplace Insert. Like most gas fireplace inserts, these models feature clear gas fronts for easy viewing, fans to circulate the heat, and of course vents to carry away the odors and exhaust. When looking for a vented gas fireplace insert, be sure to note how much ventilation the insert will require, and match that to your existing chimney or flue. Otherwise, arrange for a dedicated vent to be built for your new gas fireplace.
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