Firegear Outdoors · Installation
Firegear Pro Series Brass Burner Installation Guide
Firegear's Pro Series brass burners are the most-installed component in the catalog — 21-inch brass rings mounted on 26, 29, or 34 inch round discs and 25, 30, or 34 inch square discs. Plan on 2 to 3 hours with a licensed gas installer; the mechanical drop-in is simple, but the gas line, ventilation, and ignition wiring have to be right.
By Rob · Updated November 8, 2026
What you need
- Pipe-thread sealant rated for gas (never Teflon tape alone)
- Adjustable wrench + pipe wrench
- Gas leak detector solution or electronic leak sniffer
- Level (24 inch minimum)
- Drill + masonry bit matched to your enclosure material
- Appropriate licensed-installer permits per local code
Pro Series Disc Sizes
- 26" Round Disc
- FPB-26DPSBR21 (21" brass burner)
- 29" Round Disc
- FPB-29DPSBR21 (21" brass burner)
- 34" Round Disc
- FPB-34DPSBR21 (21" brass burner)
- 25" Square Disc
- FPB-25SFPSBR21 (21" brass burner)
- 30" Square Disc
- FPB-30SFPSBR21 (21" brass burner)
- 34" Square Disc
- FPB-34SFPSBR21 (21" brass burner)
- Fuel (N)
- Natural gas model, suffix -N
- Fuel (P)
- Propane model, suffix -P
- Ignition
- AWS / TPSI / TMSI / MT (choose at order)
Step by step
Plan the enclosure before anything ships
Confirm your enclosure has 18 square inches of cross ventilation per side already built in and that the burner disc size matches the opening. Pro Series discs are flat — they sit inside the enclosure opening with the burner ring above the disc. The disc diameter is the inside dimension of the opening, not an outside measurement.
Set the gas supply before the burner drops in
Natural gas needs a dedicated line sized per Firegear's gas-pipe-sizing chart (available in the installation manual appendix). Propane needs a regulated supply sized to the burner's BTU rating. Both installations require a shutoff valve within sight of the fire feature and a drip leg (sediment trap) ahead of the burner.
Mount the disc level in the enclosure
Set the disc flat in the opening and confirm level in both axes. Any tilt will cause uneven flame and media piling. Secure per the manual's fastening diagram — Firegear uses tab fasteners, not through-bolts, so the disc can be lifted out for service without demolition.
Connect gas and pressure-test to code
Connect the supply line to the burner inlet with gas-rated thread sealant (pipe dope). Pressure-test per local code — typically 10 to 15 psi for 15 minutes with no measurable loss. Soap-test every joint with leak detector solution; replace any joint that bubbles. Do not skip the pressure test — it's the single most common inspection failure on fire-feature installs.
Wire the ignition system
AWS systems wire to a transformer and control box that goes outside the enclosure — the control box needs to stay dry and accessible for service. TPSI and TMSI safety-pilot systems route the pilot tube through the disc; MT (Match Throw) systems have no electronics and need a long match or a long-neck lighter. Read the ignition-specific manual that ships with your unit for exact wiring diagrams.
Load media per the How Much Media guide
Firegear ships a 'How Much Media' guide (also on their resources page) that gives media weights per disc size. Over-loading media chokes the burner and causes sooting; under-loading leaves the burner visible and creates hot spots on the disc. Use lava rock as the base layer, then decorative fire glass or fire rocks on top — never put wet media on a hot burner.
Commissioning fire and leak re-check
First fire: open the gas supply, ignite per the ignition system's procedure, and watch the flame pattern for the first 10 minutes. Expect pale blue flames with yellow tips — a solid blue flame means the burner is starving for gas (check regulator sizing); a yellow-orange flame means too much media on top of the burner. Re-soap every joint after the first fire — joints that passed cold can leak once the piping expands.
Common mistakes
- Skipping the 18-sq-in ventilation spec. This is the #1 warranty-voiding mistake. Builders see the disc fit in the opening and assume they're done. The ventilation is on the SIDES of the enclosure, not the top. Build it in before the first stone goes down.
- Running Propane burners on Natural Gas (or vice versa). Firegear's model numbers end in -N (natural gas) or -P (propane). The orifices are sized for the specific fuel. Running an -N burner on propane will over-fire and damage components; running a -P burner on natural gas will under-fire and never achieve rated BTU.
- Using wet media on a hot burner. Fire glass and lava rock picked up with wet hands or stored outside in rain will pop and spall when loaded onto a hot burner. Media must be bone-dry before it goes anywhere near the flame.
Hands-on tips
- Order the AWS ignition if the fire feature will run on a timer or in salt-air coastal environments — the extra cost pays back in reliability.
- Keep the manual (90191 for Pro Series AWS) accessible to the homeowner — the install permit sign-off often requires it.
- Photograph the gas joints before covering with media; the picture saves an hour if a leak shows up a year later.
- Build the enclosure 1 inch oversized in both dimensions vs the disc spec — tight fits are harder to service and don't improve looks.
Questions people ask
Can I install a Firegear Pro Series burner myself?
No. Firegear's installation manual requires a qualified installer, service agency, or gas supplier. DIY gas work voids the warranty, violates most municipal codes, and will fail your home-insurance review. The permit and licensed labor combined typically run $400-$800 depending on local rates — small relative to the burner cost and the risk of getting it wrong.
How much BTU does a 21-inch Pro Series brass burner put out?
BTU output varies by fuel and ignition system — natural gas models run approximately 65,000-90,000 BTU, propane models run slightly higher. The exact figure for your model is printed on the data plate and in the installation manual. Always size your gas supply line to the burner's exact BTU rating, not an estimate.
What's the warranty on a Pro Series brass burner?
Firegear's current warranty structure covers burners for a limited period (check the official warranty page at firegearoutdoors.com/warranty for current terms by series). Warranty is contingent on installation by a qualified installer, correct cross ventilation, and use of matched Firegear components. Non-Firegear ignition modules or non-matched discs void the warranty.
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