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Flare Fireplaces does offer the ability to run your fireplace with a liquid propane tank though there are certain limitations this
fuel type presents when compared to the usage of natural gas. Liquid propane burns more efficiently and hotter than natural gas so to
accommodate this increase in heat we must use smaller orifices to achieve a lower BTU that can cause your flame to appear
smaller than on a unit run on natural gas. Flame height on Flare Fireplaces using Liquid Propane is roughly 4-6” in height
because of this adjustment.

Ensure you have downloaded the most current Architectural and Framing Guide from the Architect Resource Center.

Construct your metal framing base and top. Ensure to maintain ½” clearance to the sides, back and top of firebox. All framing must be cantilevered, ceiling suspended or self-supporting. See example below:

RD Metal Frame Shell

Flare Fireplaces are NOT load bearing and should not be used to support any framing or finishing material. To cover metal framing and protect surrounding room from exposure, enclose fireplace with Non-Combustible board meeting or exceeding standard ASTM E 136. See Below:

Keep a minimum 6” clearance around the vent termination cap to all non-combustible materials. If the top of the shroud is enclosed, keep a minimum of 10” clearance from the top of the termination to the bottom of the shroud. Keep 4” openings at the bottom of the shroud to allow for proper air flow within the space to help release the products of combustion through the top or sides of shroud. The center of the opening must be aligned with the center of the termination cap, see X & Y for examples. All surfaces of the chimney shroud which are exposed to the termination cap must be non-combustible.

Stone Ball Media Placement

   Flare Fireplaces allows for many different media types & configurations across our fireplace lineup. In reference specifically to the Stone Balls, we have outlined best practices below. 


  1. Do not fill the entire fireplace with stone balls, as this will overwhelm the burner. Flare recommends placing a line of stone balls on the front & back side of the burner, not directly on top of burner. This will allow the burner to properly disperse the gas evenly across the entire burner & offer a more natural looking flame. (See Example in Picture below)


2. You can also use the Stone Balls more sparingly with a single layer of Fire Glass as your base. (See Example in Picture below)


SIT ProFlame 2 Remote

With the partnership of SIT ProFlame gas valves, Flare Fireplaces’ linear fireplaces have become even more user friendly and reliable. The SIT ProFlame valve comes with all the features you expect from a modern gas fireplace such as thermostat mode, adjustable flame height and key lock.

SIT ProFlame 2 Wall Switch

Flare Fireplaces fixed with a SIT ProFlame valve will also be sent with an On/Off Toggle switch. This toggle switch is a terrific option for residential or commercial applications as the switch wires can be extended and mounted in any convenient location for centralized control.

Remote or Wall Switch?

With both components being standard shipped and included with your unit, you will have the ability to control your fireplace with either feature. Keep in mind, the fireplace will only respond to one of these functions per sequence. If there is ever confusion on which device is controlling your unit at a time, simply turn the remote control and the wall switch off. You can also utilize the chart below to determine whether the remote or the wall switch will control your unit under what circumstances. Have additional questions? Feel free to call our support line, or email us your questions at [email protected]

Soot is a product of incomplete combustion of gas within your fireplace. With all gas fireplaces soot will be generated in small amounts but some instances excessive quantities may be generated during operation. Sooting is generally an easy to resolve problem and there are several potential solutions as listed below.

Inlet Pressure

Always ensure that the inlet gas pressure matches the requirements in the unit’s specification file. This issue generally arises when the inlet gas pressure is too high, allowing too much gas to enter, resulting in incomplete combustion. It is this resulting material that collects and deposits in your firebox and stains over time.

Air Shutter

The air shutter is responsible for balancing the mixture of air and gas during combustion. Please note: on units 60” or larger, there are 3 air shutters that must be adjusted to ensure the cleanest burn possible. The air shutters can be adjusted when the fireplace is originally placed in it’s cavity under the unit. Adjustment screws are shown circled in red. If adjustment needs to be made after fireplace has had finishing material, this can be done within the fireplace using a Phillips head screwdriver.

Media Arrangement

Please pay close and careful attention to the arrangement of your media over the burner port. While Flare supports covering the full base of the firebox with crushed glass, small fragments of media can clog the small ports that gas is channeled through, causing incomplete combustion. With driftwood, logs and branches, placing branches to arch over the burner ports can also cause byproduct which is normally pulled out of the fireplace through the coaxial pipe to become trapped under the branch/driftwood. Ensure bends are pointed down if placement across port is required to ensure the most chemical waste can be removed from the firebox post combustion.

Vent Restrictor

Your vent restrictor is utilized to restrict the speed at which fresh air is brought into the fireplace and products of combustion are removed. If there is an imbalance in this closed combustion environment, soot is one possible result. Vent restrictors can be adjusted on all Flare Fireplaces.

Vent Run Verification

If the fireplace is installed and an unsupported vent run is utilized, sooting is one of many problems that may occur. If your fireplace does not allow for the products of combustion to exit the firebox as effectively as fresh air is brought in, pockets of soot will collect in the unit storing the dark and harmful debris. Please verify that you have consulted the chimney paths section of the Flare Installation Manual for supported vent runs. If you have questions about a particular path, please reach out to Flare support for clarification and approval.



F-04 is an error code that will flash on your Symac GV60 Maxitrol Flare remote when the valve fails to receive the message that the thermocouple has been warmed by the pilot light. This failure can have multiple different causes.

Gas Flow

Confirm that gas is flowing to the unit. This can be done by confirming that the main manual gas valve is open, or removing the glass and confirming that gas is flowing through the pilot. If gas is not flowing to the pilot it can be an indication that the gas is either not on, or that there is a problem at the valve such as a disconnected pilot tube, or a clogged pilot tube or valve. If gas is flowing to the valve but not releasing to the pilot, try re-syncing the remote and receiver. (see the flare install manual for the procedure.)

Ignition Spark

The second thing to confirm is the presence of sparking of the ignition at the pilot flame. There have been instances where the spark cable has been disconnected from the spark plug or receiver, or a break has formed in the cable exposing the wire. Even though you hear the unit sparking, it may just be sparking underneath the fireplace and not at the pilot. This can be done by looking through the holes in the pilot cover or by taking a look under the pilot hood for the indicating flash of spark.

Clear Pilot Openings

The third thing to confirm is that no media has become lodged under the pilot hood causing a blockage at the pilot opening which will not allow gas to be released and come in contact with the spark.

Check the Thermocouple

The last thing to check is to make sure the thermocouple isn’t broken, kinked or that lead ball inside the valve at the end of the thermocouple has not been over tightened and crushed.

For all above steps contact your authorized fireplace installer for assistance.


F04 error code


All Flare Fireplaces require a heat release

The heat release is an air outlet that helps relieve radiant heat created by the top of the fireplace. The heat collects in the fireplace chase and, through natural convection, rises up and out of the release opening. The heat release outlet for hot airflow from the wall enclosure must remain open. The outlet must be at the top of the enclosure, but not necessarily at the front, and maintain certain minimum measurements relative to the size of the fireplace. The opening can be installed at the sides of the enclosure (to the left and right of the framing) or back or on top of (in case of a drop wall or shadow line design). Depending on the unit size and BTU the heat can be up to 180 degrees fahrenheit.

   For fireplaces sized 80”- 100″ / 200 cm – 250 cm – Heat release area must be at least 200 square inches.

   For fireplaces sized 60”-70″ / 150 cm – 175 cm – Heat release area must be at least 140 square inches.

   For fireplace sized 50” / 125 cm and smaller –  Heat release area must be at least 100 square inches.

The heat release(s) must be at least 1” (25mm) from the ceiling and no more than 3” (76mm) down. Install the vent on top of the enclosure with a drop wall or shadow line (a chase that is not built all the way to the ceiling). Preventing you from placing a heat register in the middle of the finishing material.

Install Manual Reference: Page 74

Heat Release Drawings

Any heat release opening greater than the minimum size is highly recommended and will help reduce the temperature of the surrounding walls.

*** Please consult specific unit spec sheet listed on PRODUCTS page of website to confirm proper orifice sizing prior to conversion or replacing orifice ***

Fireplace gas type conversion– NG to LPG- Orifice replacement

Flare Fireplaces can be easily converted from NG to LPG. When you place your order for a fireplace, include the gas type, NG or LPG so no conversion is necessary. The procedure below can be followed in the event a gas conversion is needed to be done.

Please note: only Authorized Flare Technicians will convert units from NG to LPN, therefore, gas conversion done by any unauthorized technicians will void the Flare Fireplace warranty. Contact Flare Fireplaces for details on your unit valve pressure setting (step 8).

Use the pictures below and Flare Install Manual to gather additional information. Gas conversion kit should be ordered from Flare Fireplaces prior to starting this procedure.

First of all, be sure there is no gas being fed to your unit. Technicians must also remove power to any added features. As a result, your unit is safe to open closed lines.

Optional – Lay the unit on its back to gain easy access to the burner orifice.

1. Confirm the correct specs of the unit needing the conversion. On that specification sheet, the correct orifice size and manifold pressure are listed for the specific unit. Spec sheets are located on the products page.

2. Remove burner Orifice. Be advised: Units 60″ and larger are equipped with 3 burners. All burner orifices will need to be changed in order to ensure safe operation of fireplace.

Moden Fireplace Burner Air Shutter                                                   Linear modern fireplace pilot orifice replacement                                        

3. Technician note: The orifice housings have flared heads and will seal if threaded correctly. This results in a closed gas system with less hassle.

4. Replace Burner Orifice; while properly aligning threads when re-connecting. Finally, reinstall orifice housing into burner port and reconnect gas line.

                                                                    Linear Fireplace Burner Orifice replacement

5. To gain access to the Pilot Orifice, remove the Pilot Orifice Assembly.



6. Replace Pilot Orifice; while properly aligning threads when re-connecting. Finally, reconnect the gas line and remount the pilot assembly.


7. Close the unit air shutter in order to alter unit BTUs.
8. Techs will call Flare Fireplace support to adjust BTU on the gas valve to ensure high quality flame results.

Mounting A Television Above Your Flare Fireplace

When referring to TV Installation, Flare Fireplaces create radiant heat which rises up into the chase & out a Heat Release into the room. This allows for a relatively low temperature on the external wall above the fireplace, & lets you mount a TV as close as 12″ above the glass. Follow the chart below for suggested installation of a TV above your fireplace. Reference Flare’s Install Manual for more details. Follow this link to see a video of a TV Installation above a Flare Fireplace.

              • Please note that electric wiring used for the television must be insulated when installed below noncombustible
• It is critical when dealing with TV Installation that wiring insulation does not obstruct the hot air flow from the top of the chase.
• It is recommended to build a non-combustible double wall area behind the TV to allow cables, and other related material, so it can be
installed with less concern of blocking hot air flow.
• All wires MUST be secured and anchored to the frame to prevent any possibility of wires dropping on top of
the Fireplace.
• TV can be recessed when installed above the Fireplace or protected by a mantel.
• Wires should be inserted into the recess from the top or sides so you avoid proximity to the fireplace
vent in a TV Installation.


TV Installation


Above all when planning a TV recess, clearance to the vent in the chase is critical. You’ll need a minimum of 1” to the noncombustible recessed wall. This is to prevent heat from radiating from the vent to the recessed wall and being transferred to the TV. Due to the central location and diameter of the vent (8 inches), one of the following solutions may be necessary to maintain clearance requirements:

   1. Install the fireplace with a recess up to 4” inches at the top of the glass, thus bringing the front wall out
and allowing for space to recess also the TV.

   2. Install two 45 elbows directly above the fireplace followed by a minimum 4 ft vertical vent rise. The two small
elbows will move the vertical section back 5 5/8”. Finally, note the 1-inch clearance from the vent applies also to
the back non-combustible wall.

45 Degree Installation Guide

No Recess Installation Guide

*Please note most television manufactures and manuals will instruct the owner not to install television above or near a fireplace. Mounting a television above the fireplace is based on the owner’s decision and responsibility.*

Commercial & Residential Flare Fireplaces

  Because Flare wants to fit as many projects as possible, we offer the ability to install both the Commercial System & Residential System. Most importantly giving flexibility for many more projects, providing another level of convenience to our customers. Below you can learn the differences between the Commercial & Residential systems Flare offers.

The Flare Commercial System Overview:

  • Double Glass, included by default in Commercial System.
  • Honeywell commercial valve.
  • Media
  • Wider unit to cool the glass even more. (compared to residential) (FF and ST units only).
  • Commercial fans for cooling between the glass.
  • Support for ON/OFF simple wall switch.
  • Analog or digital timer.
  • Use phone application or remote control.
  • CSA file # 263124 – ANSI Z21.88 – CSA 2.33
  • Optional LED system.
  • Optional Power Vent with a vent as small as 3×5″.
  • Option of SK for summer operation with minimal heat.

The Flare Residential System Overview:

  • Safety Screen, included by default.
  • Maxitrol residential valve.
  • Choice of Classic Media to fill Fireplace.
  • Standard width unit for narrower application.
  • Double Glass upgrade available to include blower fans for cooling between the glass.
  • Support for ON/OFF simple wall switch.
  • Analog or digital timer.
  • Use phone application or remote control.
  • CSA file # 263124 – ANSI Z21.88 – CSA 2.33
  • Optional LED system.
  • Optional Power Vent with a vent as small as 3×5″.
  • Option of SK for summer operation with minimal heat.
Read more about additional Flare Features Here.
Follow the link to see Commercial fireplace in action.

Flare has discontinued the Warm White LED lights in favor of the RGB-LEDs


   Warm white LED lights are one of the many modern features available on your Flare. These lights are optional add a vivid glow, creating an amazing scene inside your fireplace. So whether you want a more modern look or a more traditional appearance, Flare has you covered.

warm white led installation guide

Celsius to Fahrenheit On Flare Remote


Changing Celsius to Fahrenheit, & vice versa, on the Flare 8-Button remote can be done by pressing the ON and Counter down button. Because Flare also serves the Canadien Market it is important to offer both units seamlessly. For a clear outline of the process see the image below.

setting fahrenheit or celsius

For more information on the Flare 8 button remote, please view the remote manual below:

For a quick video on the remote operation use:

The change in the setting may happen during an attempt to start the fireplace by pressing both buttons.

Duravent Install & Frame Cut-Out

Duravent is one of two venting manufacturers certified to work with Flare Fireplaces. The flue pipe should be 3×5, 4×6, or 5×8 diameter concentric pipe, B-Vent will not work. Below you will find the specific cut-out size for each component. Finally, use the chart to verify the cut-out dimensions for your job.

*Most importantly, if you have any questions contact Duravent for further assistance.

Duravent & Flare framing cutout 4x6&5x8

 Because the table is taken from the Duravent Install Manual you’ll find more details at http://www.duravent.com.

Flare Fireplaces Framing Example

Framing is one of the easiest things to get wrong on a Flare Fireplace installation. See the example below for the correct framing on a Flare DC-50.

**Each fireplace has its own framing requirements. Find your specification in the Flare Download Center.**
Framing Example                    Framing Example







For CAD Details & More In-Depth Spec Sheets Please Follow This Link.

Flare Fireplaces Basic Framing Clearances

Clearances for your Flare Fireplace are paramount for the safe, long-term, sustainability of your fireplace & fireplace enclosure. Our fireplaces are remarkably efficient, so creating a safe distance from combustible materials is most important. Also, the clearance specifications are very important, so we are providing a basic guide to use when framing your Flare Fireplace.


Clearances Guide


Most Importantly, for more information of Clearances please refer to the Flare Installation Manual.

The linear Fireplace side clearance (no glass side) is the same as the back of the fireplace:

  • 1” to Non-Combustible.
  • 2” to Combustible. Combustible cannot be exposed behind/side of the Fireplace.

If installed in an existing corner, two option to plan and install:

Option 1

  • Cover existing corners, walls and wood studs or any other combustible metrical with Non-Combustible (Cement board or Type X fire rated, ~ 1/2 ” thick or).
  • Install fireplace 2” from the Non-Combustible back.
  • in case of a side wall next to the front glass, install Fireplace 4″ from the side.

Back: fireplace is 2” from back Non-Combustible & 2.5” from the covered Combustible existing material.

Side: Fireplace is 4″ from Non-Combustible and the fireplace glass is 7″ from the side wall. See chart below. Red line showing reflective heat from the glass.

example of fireplace clearance

Best option for corner unit that are installed in an existing homes and a chase is built around it.

Option 2

  • Construct the walls and studs on the back and side of the fireplace from Non-Combustible material. Metal studs and cement board.
  • Clearance of 1” from Metal studs and Non-Combustible material.
  • Any Combustible is covered with Non-Combustible and is 2” away.
  • In case of a side wall, keep fireplace 4″ from the side wall.
  • See chart below:

diagram example of fireplace clearance

Any stud above the unit must be metal in both options above.

Please see below for more related information from the framing guide




Flare Fireplace appliance location diagram

Flare-FF-50 vent calculation example based on the manual:

Vent path from Survey:

  • 3 ft up from the fireplace

  • 45 elbow

  • 1ft

  • 45 elbow up

  • 15 ft vertical up

  • Vertical cap

Y vertical calculation

A – First Flue length =  3              =  3 ft
B – Vertical Flue length = 1 +15  = 16 ft
C – Roof Terminal = 1                   = 1.5 ft
H – Small Elbow (45°) = 2            =  2 ft

 Y Axis Parameters = 22.5 ft

Flare-FF-50 vent cal

X Horizontal calculation

D – Horizontal Flue length  = 1 ft
E – Elbow (90°)                        =  0
F – Elbow (lying 90°)              =  0
G – Wall Terminal                   =0

X Axis Parameters = 1

Flare-FF-50 vent cal

The pebbles size will vary and is approximately 2 – 3 inches.

See below picture for a better perspective of the pebbles.

width of White Pebble

length of White Pebble

See below for Flare modern fireplace GV60 gas value, inlet and outlet test ports. All of Flare frameless fireplace share the same gas valve system .


Flare GV60 gas valve ports picture


Overall port diagram

GV60 overall port chart

The Flare-DC framing instructions includes a 4″ max measurement requirement to a side wall. The requirement is due to the fact that the side glass will radiate heat like a front glass of a fireplace.

See below chart for clarification. The 4″ Max is the X value

Flare-DC linear install draft
Framing guide example

Yes, it does. The Flare Fireplace uses an advance gas valve, GV60, that supports home automation.

The GV60 gas valve will operate through an external source, such as a home automation system, by using the 5-wire pin connector on the receiver.

Read more about Flare Fireplaces and Home Automation



Flare Fireplaces recommends using 3 feet of vertical run before any bend or turn. In some install scenarios it is possible to use less than 3 feet.

Please contact Flare Fireplaces support team for vent path review and approval (free service) when wanting to use less than 3 feet.

The outlet vent must be at the top/bottom part of the enclosure but not necessarily at the front (Can be at the back, sides, and top, in case of a drop wall), as long as the measurements below are maintained.

For Flare See Through fireplace, the open vent must exist in both sides of the glass

From the manual :

Top vent system – Hot Airflow outlet from the wall enclosure MUST remain open. For Flare See Through fireplace,
open vent must exist in both sides of the glass. The outlet must be at the top part of the enclosure but not necessarily
at the front, as long as the measurements below are maintained.

For Fireplace size above 60″ / 150 cm – Vent area above 140 Sq inch
For Fireplace size below 60″ / 150 cm – Vent area above 100 Sq inch

Lower vent opening –  Optional for normal installation. A Must for double glass installation or blower kit option.

For Fireplace size above 60″ / 150 cm – Vent area above 70 Sq inch
For Fireplace size below 60″ / 150 cm – Vent area above 50 Sq Inch

Use the manual for more details:

Warning: Turn off the fireplace, and allow time for the unit to cool before proceeding.

Caution: The ceramic glass is very fragile, and should be handled with care.

Warning: Double glass fireplace should NEVER be operated without the external glass

Step 1 – Remove lower trim by releasing the screws. The number of screws will depend on fireplace size.

Step 2 – Attach glass suction cups to the glass and release the glass upper frame. The upper frame is attached with 10mm spring bolts.

The top glass trim gap will open once bolt is released and will allow the glass to be removed. Upper trim will stay attached and only open to be able to remove external glass.

Step 3 – Tilt the bottom of the window frame and rest it in the gap between the external frame and glass holder.

Step 4- Tilt the top of the window frame and lift out to clear the top edge of the unit. Place the window frame in a safe place to avoid damage.

Repeat the steps above in reverse order to install the external glass back.

YES, the fireplace remote can be used after the unit has been turned on from the wall switch. The fireplace receiver will respond to both, the wall switch or remotes commands regardless of what was used first.
symax fireplace remote

fireplace wall remote

The firebox front legs will need to be assembled during installation but only for corner fireplace models (Flare-DC, Flare-RC, Flare-LC). The Corner glass does not allow for the front leg to be pushed in full during shipping. Flare-Front and Flare-See Through will have the telescopic legs assembled during shipping and should not need to be assembled.

The default inside firebox finishes is black metal. It is also optional to get the inside firebox back installed with black ceramic glass (mirror effect). The black ceramics glass reflects the flames and since it is made from ceramic glass it is guaranteed to last. The black glass reflects the flame but does not look like a mirror when the fireplace is off.

The Fireplace is equipped with telescopic legs that can extend. When set to minimum the fireplace will be 3″ from the floor and the bottom of the glass will be 9″ from the floor. When set to max the bottom of the glass will be 18″ from the floor and the leg will be extended 12″.

measuring fireplace leg extensions

***Flare Fireplaces sold with Double Glass or an optional Blower Kit require air intake below the glass. This allows air circulation which cools the external glass and increases the efficiency of the fireplace.***

      Lower Air Intake – Optional for normal safety screen installation. Required for installation with double glass or safety screen with optional blower kit.

  For fireplaces sized 80” & 100” – vent area must be at least 100 square inches.
For fireplaces sized 60” & 70” –
vent area must be at least 70 square inches.
For fireplaces sized 50” and below –
vent area must be at least 50 square inches.

NOTE: Openings above for Heat Release and Air Intake are measured for open air space.

***For See Through and Room Definer fireplaces, the air intake requirements are double.***

   Install Manual Reference : Page 77

The lower vent opening can also be used as an access door to the gas valve & other components, if it meets  the above size requirements. Lower vent opening/(s) can be installed at the sides of the enclosure (one on the left & one on the right), back or front. It is recommended to place one opening on all sides of longer units, to allow for better distribution across all fans of air taken in from the bottom.

Recent Posts

Flare is a Top rated company to work with. Professional , courteous and knowledgeable staff always going that extra step! They are always able to answer any questions, help with any applications and deliver the product fast and efficiently. There products are top of the line and a pleasure to install and work with. Very proud to be able to offer the line to my clients!.
Michael Melahn, NFI certified dealer
Kelli Gibson, Architecture firm
I work at an Architecture firm and called for some technical assistance on a room-dividing unit. In the past, other companies have just answered my questions with as little detail as possible just to get off the phone. The guy who answered my phone call at Flare Fireplaces (Kyle) went above and beyond and walked me through the entire set up of the unit, toured me through different diagrams on the website so I could visually see what he had explained, and then followed up with an email with EVERYTHING I needed. I tend to ask a lot of questions, and I never once felt like he was annoyed or that he was trying to pawn me off. I never leave 'reviews', but this was such a positive experience, I had to leave one. You can tell this is a great company and the employees are very passionate about their product. I highly recommend!.
Flare Fireplaces is where innovation, quality and luxury come together to form new ideas. By combining superior raw materials, contemporary design, creative technology and a frameless way of thinking we have created a full line of indoor & outdoor linear, modern fireplaces that are luxurious, simple to operate, and efficient.
Simplification and Quality makes a better lasting product.
We will continue to listen to our customers , dealers and distributors to make sure we update,change and improve our product to create the best liner fireplace on the market.
Modern custom fireplaces for homes and businesses.Flare Fireplaces offers 85 different models of linear fireplaces. For customers looking for the best modern fireplace, see-through, indoor, outdoor, or corner fireplace, we offer the most extensive selection. Our models are available in lengths of up to over 100 inches and in glass heights of 16, 24, and 30 inches. Flare Fireplaces also offers custom fireplace made to order based on your requirements. .

Linear Fireplaces

Linear fireplace
The linear gas fireplace is designed to show longer over the wall projecting rectangular opening. The name “linear fireplace,” is used for the fireplace, because it can be specified by linear foot. For example, Flare 3ft, Flare 4ft or Flare 8ft. When specifying and referring to a linear fireplace, it mostly refers to a rectangular shaped fireplace. Read more and learn on what feature really matters for linear fireplaces.