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76 CFM

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.


GV60 | F04 ERROR



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.

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 Canadian 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.

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 are approximately 2 – 3 inches.

See below picture for a better perspective of the pebbles.

width of White Pebble

length of White Pebble


The stones size will vary and are approximately 1 1/2″ – 3″.

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

Flare Fireplaces Conversion Tools can be found at the links provided below. For any further support please call Flare Fireplaces Technical Support.

NG to LPG – SIT – Conversion

NG to LPG – SIT – Motor Conversion

Verify Inlet Pressure – NG

Verify Inlet Pressure – LP

For Fireplaces sized 30″ up to 70″ – a Minimum of 3′ rise off the top of the fireplace is required before any elbow

For Fireplaces sized 80″ up to 100″ – a Minimum of 6′ rise off the top of the fireplace is required before any elbow

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

GV60 Valve System: Yes, the remote and wall switch can be used together to turn the fireplace on and off, regardless of which is used to turn the unit on.

GV60 Control

SIT ProFlame II System: No, the included remote and wall switch function independently. If you turn on the fireplace with the remote, it must be turned off with the remote, and same with the wall switch.

SIT Control

Honeywell Valve System: This does not ship with a remote or wall switch, but with a power cable that can be hard wired to any outlet switch, or even 3rd party smart devices. 3rd Party Outlet/Remote Options

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.

Telescopic Legs For Corner Style Fireplaces

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.

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.