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    Gas Fireplace Inserts

    Have Questions About Gas Fireplace Inserts?

    Browse Gas Fireplace Inserts


    Gas Fireplace Insert Buyer's Guide

    Do you want to upgrade your wood-burning fireplace, but don't want the stress that comes with a full renovation of a portion of your home? A gas fireplace insert might be your best choice! Designed to go into an existing fireplace, these appliances offer the best of both worlds.

    But, how do you know which insert is right for you? With dozens of manufacturers and models out there, eFireplaceStore is here to help you find the right one for your needs.

    Gas Fireplace Inserts


    What are Gas Fireplace Inserts?

    A gas fireplace insert is a unit that retrofits into an existing masonry fireplace or any prefabricated, factory-built fireplace that carries the correct rating. Fireplace inserts are a more affordable, painless option with relatively quick installation in comparison to completely redoing a fireplace and chimney. Additionally, fireplace gas inserts can burn either natural gas or liquid propane.

    This means homes in all areas can enjoy the advantages of this type of appliance. It does not matter which fuel the masonry fireplace was designed for originally, although masonry fireplaces that originally burned coal may be too small to house an insert. But, there are a few other things you need to know about gas fireplace inserts.

    What do I need to know about Gas Fireplace Inserts?

    You should consider a few things before leaping into purchasing a fireplace insert. Some key areas to consider include size, BTU output, and venting options. Knowing the exact dimensions of your existing fireplace is essential for finding the correctly-sized fireplace insert.

    To find the correct size for an insert, you'll need to take a few measurements of your existing fireplace. You will need several numbers, so grab a tape measure. First, you need the height and width of the opening of the fireplace. Then, you need to know how deep the fireplace opening is. Additionally, you need to know the height and width of the back wall of your fireplace. Keep in mind that some masonry fireplaces have a back wall that slopes forward, so only measure the depth at the shallowest point.

    Now that you know the size of your existing fireplace, you can start to look at the sizes of inserts. Doing this will give you an idea of what sort of insert you might like to have in your home. Manufacturers of fireplace inserts will provide a detailed sizing diagram and minimum dimensions required for installation. Comparing these sizing charts against your recorded measurements will guarantee a proper fit.

    Fireplaces vs Fireplace Inserts vs Fireboxes

    A true fireplace insert has everything needed to replace your existing masonry construction. There has always been confusion between a fireplace, fireplace insert, and a firebox. A fireplace is any structure or appliance, masonry or factory-built, that is designed to facilitate the burning of wood or gas fuels. This term refers to the whole structure or appliance and it's important to note that these are built-in structures or appliances that cannot be easily removed. Prefabricated fireplaces have a large metal chassis the ensures the outsides stay cool, with metal spacers that allow them to be installed into wooden framing. This is not the case with a gas fireplace insert. A firebox is just the interior of the masonry or prefabricated fireplace that contains the fire. Unlike a gas fireplace insert that is fully equipped and ready to use, a firebox that is being retrofitted for gas would need a separate gas log set, a burner, and other components.

    Gas Fireplace Inserts

    British Thermal Units (BTU)

    The BTU input of a vented gas fireplace insert is important as well. This ties in with the difference between using a fireplace insert or a fireplace that has been retrofitted with a gas log set. The gas insert will have a determined BTU input based on the fuel type. With a fireplace that was previously only used to burn wood, the gas logs and burner you select will determine the BTU input.

    You can easily determine the BTU input your home can accommodate. All you'll need are the measurements of the room where the insert will be installed. Next, multiply the L (length) x W (width) x H (height) x 20 to calculate the maximum BTUs your room can handle. Having this number will allow you to shop more specifically and have realistic expectations of how much area the appliance can heat. This is also a good time to determine if the appliance will truly be used for heating or is more in line with an aesthetic want.

    It is up to you whether you decide to DIY the job or hire a professional. But, we recommend consulting an NFI certified technician to help with installation questions.

    How to Choose Gas Fireplace Inserts

    You'll want to be sure a gas fireplace insert is the right way to go for your upgrade. First, ensure you have enough space to house the new unit. Note that some prefabricated fireplaces are not rated for use with inserts. Check with your manufacturer to make sure your unit is rated for use with a gas insert fireplace replacement.

    Most manufactured fireplaces will have a build plate just inside the opening with the model number listed. If you do not have the owner's manual on hand, a quick online search will often yield a result. The manual will usually explicitly state whether or not the fireplace is listed for use with an insert. It is important to use a fireplace insert only with a unit that is rated for it, otherwise overheating of the fireplace can result.

    Design Options

    Many brands offer various stylish choices. But, most styles fit into one of two categories.

    Some inserts have a classic appeal while others speak to contemporary flair. There are large ones, small ones, and some sizes in between. You can even find ones that look more like a large flat-screen TV than a fireplace.

    Gas Fireplace Inserts

    Most inserts offer various styles of surrounds and overlays. These are the components that are used to cover the inevitable gap between the edges of the insert and the edges of the fireplace. Depending on the insert, the styles can range from a simple 3 piece steel surround to a single piece ornate cast iron overlay. Simply put, there are too many design options to list here. So, it's best to narrow down the options by your desired aesthetic. Then, you can go from there.

    How do Gas Fireplace Inserts work?

    The way gas fireplace inserts work depends largely on the way they are vented. They come in vented or unvented varieties and are divided into three subcategories or types. From the vented category, you can choose between direct-vent and natural vent. The choice boils down to your heating needs, budget, and available space for installation.

    In this section, we'll cover these options in more detail.

    Ventless Gas Fireplace Insert

    Factory-built ventless inserts burn cleanly. These units are designed for a maximum of 40,000 BTUs for indoor applications. This BTU cap is to ensure that they do not consume too much oxygen from the indoor air. They are manufactured without a vent collar as they don't use venting systems. These units are highly efficient heating sources and are perfect for supplemental heating, especially for homes with large rooms and open floor plans. And, most come with a blower to circulate heat throughout your home.

    Gas Fireplace Inserts

    As discussed earlier, gas fireplace inserts are installed into an existing fireplace. Some are secured with fasteners, but many simply rely on the weight of the insert to hold the unit in position. And, you can give them a more customized look with optional accessories. Some of the exterior accessories include trim kits, surrounds, or faux door overlays.

    These options cover visible space between the opening and the outer shell of the insert. We recommend choosing an insert that is as large as possible without overpowering the room. When you balance size with BTU rating, you can have the best of both worlds.

    But, be aware that some areas do not permit vent-free appliances. There are several reasons for this. The main debate centers around functionality at higher altitudes and safety concerns. They also can only be used as a supplemental heat source, since they consume oxygen from the room that must be replenished over time. For these reasons, it is a good idea to review your local codes before choosing a vent-free unit.

    Direct Vent Gas Fireplace Insert

    Direct-vent gas fireplace inserts are the best all-around option. With sealed openings, they offer a good balance of heating efficiency and preservation of indoor air quality. A direct vent gas fireplace insert operates with the same efficiency as a direct vent gas fireplace. They use a venting method that's similar in concept to a direct vent fireplace, but the means of how they achieve it is different.

    Most direct-vent fireplace applications use coaxial vent pipes. This means that they use a pipe within a pipe - a smaller inner pipe encased by a larger outer pipe. It's a rigid system, designed to route vertically or horizontally through an exterior wall. The inner pipe is responsible for containing hot flue gases, while the outer draws outside air for combustion in the fireplace.

    Gas Fireplace Inserts
    Kingsman direct vent fireplace insert

    Fireplace inserts instead use a co-linear design that allows you to route your venting up an existing masonry chimney. Instead of a pipe within a pipe design, it includes two separate pipes that run side by side. The pipes work in a similar fashion to a co-axial system. One pipe draws combustible air from outside. The other pipe expels unwanted combustion gases from the home through the chimney.

    Many systems rely on two highly flexible liners that are three inches in diameter each. The small diameter and flexibility of these liners mean that they can easily be routed through the damper opening of masonry or prefabricated fireplace, as well as around offsets or turns within the chimney. These liners connect to a purpose-built termination that must be installed at the top of the chimney. The termination system keeps the intake air and exhaust air separate. It also prevents water intrusion. As with vent-free systems, direct-vent models are designed with efficiency in mind. They, too, feature a built-in blower system to maximize heat transfer.

    Natural Vent Gas Fireplace Insert

    Often referred to as B-Vent, this venting method is the closest to a wood-burning fireplace. B-Vent fireplace inserts have an open front that allows an easy view of the flames. They provide a realistic flame without the maintenance needed for a wood-burning unit.

    However, B-Vent inserts have low heating efficiency. This is because they lose much of the produced heat to the chimney, much like an open wood burning fireplace. Most people install these units for aesthetic appeal as opposed to heating ability. This type of insert requires a flexible vent system that is routed through a masonry chimney, much the same as a direct vent fireplace insert. Since they use room air for combustion, they only use a single liner to vent exhaust gases. The liner is usually 3 to 4 inches in diameter.

    Gas Fireplace Inserts


    How to Install Gas Fireplace Inserts

    Installing a gas fireplace insert requires labor and good knowledge of how to perform the task. Consider the venting that will need to be run, the gas that will need to be supplied, and 120-volt power that is needed for fans and ignition systems. Fitting issues, affected by the style of the gas insert, pose the most difficulty.

    Depending on access, it can be difficult to provide the necessary support systems. That's why seeking the help of a certified expert is key to your installation success.

    Before installing any gas or gas stove inserts, you'll also want to consider the gas line routing logistics of your home. Of course, you can choose between natural gas or propane, but it's easiest to use whichever fuel is already supplied to your home. But, you will need a gas line. If you don't have one for your existing fireplace, you'll need to have one installed. You'll also need to determine the best point of entry for your unit.

    Many prefabricated fireplaces have knockout areas. These appear within the fireplace opening or on the exterior of the fireplace jacket. Either space allows for the passing of a gas line into the fireplace. If the fireplace doesn't have a gas line in place, the installer may need to open an adjacent wall to route one.

    For masonry fireplaces, it is possible to bore a hole with a masonry drill. This will allow you to route an external line into the opening of the insert. Each installation is different. So, we suggest discussing the time and cost of routing a gas line with a seasoned plumber.

    You'll also want to consider any electrical components. Units that use a blower, internal lighting, or an electronic ignition system will need electricity. You can either use a nearby electrical outlet or install one.

    For an existing outlet, you can route a low-profile electrical feed wire along the baseboard and into the fireplace opening. An electrical Panduit will help keep wires hidden from view. For a cleaner look, you can install an electrical outlet inside the fireplace opening. This option will need routing similar to that of a gas line.

    Venting Components

    To complete the gas fireplace insert installation of vented models, you will need flexible aluminum liners. Most manufacturers offer a purpose-built vent kit that includes these. Vent kits include universal components that meet the UL listing requirements.

    Most liners for fireplace inserts will be collapsed for shipping. So, you'll need to expand them fully before installation. Also, take careful note of how the flue collar on the insert and the flue collar on the fireplace align. Unlike a masonry fireplace, there is usually no smoke chamber to accommodate venting offsets.

    The ceiling of a firebox is usually flat. And, there is often less than six inches of space between the insert and the fireplace. So, it will not be possible to offset the chimney liners enough to route them into the chimney.

    The owner's manual for each unit will show the measurement from the face of the fireplace insert to each flue liner. Take this information into account to make sure the vent collars and chimney opening overlap for tight installations.

    The actual installation of a gas fireplace insert should be done by a licensed professional. Some manufacturers require professional installations to validate the warranty of their products.

    Gas Fireplace Inserts

    Completing the Look

    Many times, installing a fireplace insert will result in a gap between the edge of the insert and the fireplace opening. A surround can and is often required to cover this gap. A surround covers the gap between the edges of the insert and the fireplace opening.

    This surround could be a multi-panel unit or a single piece. You'll need to verify that the surround is large enough to cover the fireplace opening. But, it should not be so large that it looks awkward or does not fit within the confines of a mantel or surround. Most models have several surround options.

    Not all fireplace surfaces are smooth. In such cases, it can be a challenge to make a surround sit flat against uneven surfaces or ledges. You'll want to create a smooth surface for the surround or to trim.

    If the surround cannot be trimmed, it is possible to overlay the surround against the face of the fireplace and trace where the surround will sit. Then, you can use castable mortar to create a thin coat over the stone to create a smooth surface.


    Some Top Manufacturers in the Industry


    • Napoleon — Started in 1976 as a steel fabrication business, Napoleon gained solid ground in the industry after creating the first single-pane ceramic glass stove door. From there, the manufacturer progressed into fabricated fireplaces. They introduced innovative log designs and industry-leading manufacturing techniques.
    • Empire — A family-owned business since 1911, Empire has produced quality gas-fired hearth products for decades. Offering a range of high-quality products, Empire gas fireplaces and inserts are known for simplicity, ease of use, and longevity.
    • Kozy Heat — After the ongoing fuel gas embargo, Kozy Heat began manufacturing high-efficiency wood-burning appliances in 1976. They later transitioned into producing gas-fueled models. Today they produce a diverse line of gas fireplace inserts that are built to a very high standard.
    • Kingsman — Kingsman started producing wood-burning appliances in 1976 before transitioning into gas models in 1983. They have since developed a highly customizable range of gas inserts fit for any style. Focused on a low volume of quality products, Kingsman has one of the lowest failure rates in the industry.


    Shipping Information

    Most fireplace inserts will arrive on a pallet via LTL freight. The freight company will call you to schedule a delivery to your home or business. But, these deliveries often require more than one person to receive the package. Upon arrival, we encourage customers to inspect their products carefully for damages. It will be up to you to refuse the package if it arrives damaged. If you accept the package and find damage later, you may not have a case for the carrier or the manufacturer being at fault.

    Care and Maintenance

    To keep your unit in good running condition, it's important to perform ongoing maintenance. To help, we've established a list of tips to help keep your fireplace insert operating for a long time. Among those things that should be done on a regular basis are included on the chart.

    Have the insert checked out by an NFI certified technician at least once a year. Ideally, this inspection should take place around September or before the start of the cold season. Doing this will ensure that your insert is operating efficiently. It also helps prevent problems or issues or catch those that are present or in need of addressing.

    Gas Fireplace Inserts

    How long will gas fireplace inserts last?

    If well maintained, a gas fireplace insert can last between 15-20 years. To get the most years out of your appliance, follow the manufacturer guidelines. Manufacturers provide unit-specific maintenance instructions. But note that all gas fireplace inserts are vulnerable to water. So, make sure the chimney is sealed against moisture intrusion. Water exposure could cause premature corrosive damage.

    Summary

    No matter which fireplace insert you choose, we hope this article provided some helpful information to make your decision easier. If you're looking for a cleaner burn with less ongoing maintenance, you're looking in the right place.

    Remember, a gas fireplace insert saves you from regular sweeping and ash buildup that comes with a wood-burning unit. And, depending on the venting you select, it could also save you money. Grant yourself permission to indulge in a more efficient and cost-effective option.

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    Gas Fireplace Inserts Q&A with the NFI Certified Specialists

    * Please Note: All customer questions are answered by our NFI Certified Specialists free of charge!
    33 Questions & 33 Answers
    Bunny
    from Ajax, ON asked:
    February 1, 2021
    How do I know what dimensions to take to determine the size of an ng insert?
    1 Answer
    To check for the proper size of a fireplace insert, we need to know the fireplace's front width, the rear width, the opening height and the depth inside the firebox.  Each insert we sell will list the "minimum fireplace dimensions" that are required on the item page, usually in the "Product Details" section. 
    Submitted by: Tyler M. - NFI Master Hearth Professional on February 2, 2021

    Randy
    from Forney, TX asked:
    January 20, 2022
    Can I hire someone local to figure this all out and install?
    1 Answer
    That is definitely the recommended course of action. You can find a list of local and certified installers by visiting: www.nficertified.org. 
    Submitted by: Aaron D. on January 21, 2022

    Pat A
    from Roseville, CA asked:
    December 26, 2021
    Are the new inserts more efficient?
    1 Answer
    Newer inserts are indeed more efficient these days.  Direct vent propane inserts usually operate now at an efficiency of around 75%-85% efficiency. 
    Submitted by: Brennan W. on December 26, 2021

    Alan
    from Green Valley, AZ asked:
    November 23, 2021
    Do you carry gas logs?
    1 Answer
    Submitted by: Tyler M. - NFI Master Hearth Professional on November 23, 2021

    Allen
    November 22, 2021
    The filter on the website for choosing a fireplace insert only shows one dimension.  Which one is it?  Width or Height?


    1 Answer
    The size is referring to the width, left to right.
    Submitted by: Tyler M. - NFI Master Hearth Professional on November 22, 2021

    Katherine G
    from Charlevoix, MI asked:
    September 28, 2021
    Is there any gas fireplace insert that can be installed without a chimney (venting through plywood back wall)?
    1 Answer
    No, all of our direct vent gas fireplace inserts require venting vertically to the top of the existing chimney.
    Submitted by: Tyler M. - NFI Master Hearth Professional on September 28, 2021

    Alan H
    from Arnold, CA asked:
    September 11, 2021
    I need to replace a gas insert. The current unit is 39" x 34.5" x 16.25". Can I purchase a smaller unit?
    1 Answer
    As long as you follow the "Minimum fireplace requirements" section of the insert you are interested in, you can always go smaller than those dimensions, just not larger.
    Submitted by: Devon P. on September 13, 2021

    Linda S.
    from St. Louis, MO asked:
    May 14, 2021
    We want to get an insert, but is there such a thing as a chimney flue too damaged/deteriorated for an insert?
    1 Answer
    Yes, you will need a functional chimney in good condition to install an insert.
    Submitted by: Tyler M. - NFI Master Hearth Professional on May 14, 2021

    Gary K
    from Roswell, NM asked:
    February 16, 2021
    Will the gas fireplace work when there is no electricity?
    1 Answer
    Gas fireplaces, inserts and stoves with a millivolt/standing pilot ignition do not require electricity to operate.  However, if installed, any blower would not function without electricity.
    Submitted by: Tyler M. - NFI Master Hearth Professional on February 17, 2021

    Bob
    from Baltimore, MD asked:
    February 16, 2021
    will a gas fireplace still run if you lose electricity?
    1 Answer
    Most models will, yes.  Millivolt/standing pilot models do not require electricity for the burner to operate, and most electronic/intermittent pilot models have a battery back-up for ignition in the event of a power outage.
    Submitted by: Tyler M. - NFI Master Hearth Professional on February 16, 2021

    Peggy
    from Dunmore, PA asked:
    January 30, 2021
    Do you carry a gas fireplace insert that is in a corner that is side vented?
    1 Answer
    No, we do not carry a multi-sided/corner gas fireplace insert.  We apologize for the inconvenience. 
    Submitted by: Tyler M. - NFI Master Hearth Professional on February 1, 2021

    Pam
    from Dallas, TX asked:
    January 27, 2021
    Can Gas fireplace inserts be used for outdoor fireplaces?
    1 Answer
    No, none of our gas fireplace inserts are suitable for an outdoor installation.
    Submitted by: Tyler M. - NFI Master Hearth Professional on January 27, 2021

    Jill
    from Michigan asked:
    January 10, 2021
    How large does a room need to be to use a ventless gas insert?
    1 Answer
    Size requirements depend on the BTU of the particular vent-free gas fireplace or insert.
    Submitted by: Tyler M. - NFI Master Hearth Professional on January 11, 2021

    B H
    from California asked:
    December 5, 2020
    Does it matter where (which side) the gas inlet is installed? Is the electrical supposed to be a standard 3 prong outlet installed inside an existing masonry firebox?
    1 Answer
    Typical installations have the gas on the left side of the firebox and the electrical installed on the right rear corner of the firebox.  A standard 110v outlet in a metal box is what is needed.
    Submitted by: Aaron D. on December 7, 2020

    Ralph
    November 25, 2020
    Do all gas fireplace inserts have a pilot valve and control valve near the firebox?
    1 Answer
    More of less, yes, every gas insert will have a gas valve near the firebox and the pilot assembly near that valve. 
    Submitted by: Tyler M. - NFI Master Hearth Professional on November 25, 2020

    Krista
    from Novato, CA asked:
    April 26, 2020
    Are hearths necessary with gas inserts?
    1 Answer
    In most cases, a hearth is not required for a gas fireplace insert.  A hearth would indeed be required for a wood-burning fireplace insert.  We recommend checking the requirements of a particular model before proceeding.
    Submitted by: Tyler M. - NFI Master Hearth Professional on April 27, 2020

    Ray
    from Connecticut asked:
    February 11, 2020
    Do you have a gas insert that has a thermostat to control the appliance?
    1 Answer
    Yes, some already have a thermostatic remote included, others it can be added. Almost all can be connected to a wall thermostat.
    Submitted by: Owen O. on February 11, 2020

    Mike
    from Ellendale, ND asked:
    December 15, 2019
    Which manufacturer has the most efficient fire place insert?
    1 Answer
    We recommend the Empire line; they offer solid options both in vent-free and direct vent.
    Submitted by: Tyler M. - NFI Master Hearth Professional on December 16, 2019

    Gerri H.
    from Minnesota asked:
    December 14, 2019

    Do you install and setup the gas fireplace insert? I have a wood-burning fireplace that was never used and I would like to turn it into a gas burning fireplace.



    1 Answer
    No, we are an online-only retailer with no local outlets and we do not offer installation services.
    Submitted by: Tyler M. - NFI Master Hearth Professional on December 16, 2019

    Steve
    from Montana asked:
    December 12, 2019
    Is there a particular NG model that has an arched front, blower and white porcelain herringbone interior?
    1 Answer
    We do not offer any fireplaces or inserts matching this description. 
    Submitted by: Will M. on December 12, 2019

    Richard M.
    December 5, 2019
    we have a 6' working wood fireplace, and would like to convert it to a contemporary glass rock tray, but we need a bigger one that is shown. Do you have one that would be +4 feet?  
    1 Answer
    None over 4 feet, no. You can place two side by side in a line. 
    Submitted by: Owen O. on December 5, 2019

    Don
    from Gainesville, Va asked:
    November 19, 2019

    Do you have any glass doors for a 36" w by 24" h insert?

    1 Answer
    Doors are not sold or listed by size, but by make and model. We need to know your units make/model and serial number to locate the correct doors for it.
    Submitted by: Owen O. on November 19, 2019

    Peg
    from Lomax, IL asked:
    November 13, 2019
    Which measurement do you use to order an insert?


    1 Answer
    In order to properly size an insert, we would need your existing fireplace's front width, rear width, depth and height.
    Submitted by: Tyler M. - NFI Master Hearth Professional on November 14, 2019

    Mudit
    from San Jose asked:
    November 11, 2019
    Are there any fireplace inserts that have glass on the front and the side?
    1 Answer
    Unfortunately, no. 
    Submitted by: Will M. on November 12, 2019

    Barbara
    from PA asked:
    November 4, 2019
    We will be replacing a gas fireplace insert with a remote. The gas line is there and the electric. Will it be a difficult job to do?
    1 Answer
    Replacing a remote control on a gas fireplace is typically fairly simple and can be done by a homeowner. The replacement remote control you purchase should include installation instructions to walk you through the process.
    Submitted by: Tyler M. - NFI Master Hearth Professional on November 5, 2019

    Eithyel S.
    from Indianapolis, IN asked:
    October 26, 2019
    If my ventless gas fireplace put out carbon monoxide is it safe to put a new insert in?
    1 Answer
    If you are removing the existing fireplace and completely replacing this fireplace with a brand new ventless fireplace, no manufactured ventless gas fireplace should produce carbon monoxide with proper installation and maintenance. 
    Submitted by: Will M. on October 28, 2019

    Scott
    from Norfolk. VA asked:
    October 7, 2019
    How important is a blower for a direct vent gas insert in a mild climate? Can blowers be installed on any direct vent gas insert or is it model-specific?
    1 Answer
    Blowers do not increase the heat output of a hearth appliance, they simply distribute the produced heat more quickly and evenly. Without one, the fireplace would heat like a large space heater or radiator. While most inserts (appliances designed to be placed inside already existing fireplaces) have blowers as a standard feature, fireplaces may or may not have available blowers depending on the model.
    Submitted by: Cortney O. on October 8, 2019

    Wayne S.
    from Midland, MI asked:
    October 1, 2019
    Does anyone make a see through (i.e. open on both front and back) gas fireplace insert? 
    1 Answer
    Unfortunately, we do not carry a see-through fireplace insert, and I am not aware of any on the market. We apologize for any inconvenience. 
    Submitted by: Brennan W. on October 2, 2019

    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.
    Submitted by: Tyler M. on September 7, 2017

    Gina
    from Norwalk, CT asked:
    October 12, 2016
    How do I know what size to get?
    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.
    Submitted by: Brennan W. on October 12, 2016

    Pat
    from Beaverton, OR asked:
    October 2, 2016
    What is the measurement that determines size?
    1 Answer
    It is the width measurement that narrows down the overall search results.
    Submitted by: Chris C. on October 3, 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.
    Submitted by: eFireplaceStore on January 11, 2016

    Jeff
    from Milford, CT asked:
    September 28, 2013
    How do I size an insert?
    1 Answer
    Our site organizes our insert options by width measurement. However, to properly fit an insert for you, we would need the front width, rear width, depth and height of your fireplace.
    Submitted by: Kevin E. - NFI Certified Specialist on September 28, 2013

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