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Crossfire by Warming Trends FR4830 Ready-to-Finish Rectangular Fire Pit Kit, 48x30-Inch provides a complete DIY gas fire pit kit that includes the necessary components to build and install a beautiful fire feature. The enclosure features a heavy duty aluminum frame completed with a concrete hardiboard surround to complete the basic structure and allow you to finish it with your own custom finish option. The 48" x 30" x 22" rectangle enclosure includes a 28" x 10" x 2" rectangle aluminum pan and 22" Crossfire burner rated at 110,000 BTU that can be specified for either propane or natural gas.
The included burner kit includes a 1/2-inch flex line that measures 36-inches long, a 1/4-turn ball valve with chrome plated decorative flange and 12-inch key, and a rectangle pan to combine the necessary components to install the burner system. Four ignition options are available in order to offer a wide variety of ignition types to start your fire pit.
Aluminum Frame Enclosure - Durable aluminum framed enclosure features concrete board walls ready to be finished
Brass Burner Construction - Heavy duty brass burner construction ensures a corrosion resistant product
Crossfire™ Burner Design - Innovative burner design with fuel regulation creates a brighter, taller flame presence
Ignition Options - (4) Unique ignition options available: match light, 3V spark, 24V spark, and 24V hot surface ignition
Fuel Efficiency - Unique design creates a fuel efficient burner that consumes half the fuel of conventional burners
Includes - Crossfire burner, burner pan, 36-inch flex line, valve, flange & key, and ignition system
Full Lifetime Warranty - Superior quality brass is backed by Warming Trends' Full Lifetime Warranty
Natural Gas or Propane - Burner system should be specified for natural gas or propane applications and is rated for 110,000 BTU
Gas Supply - Before you begin designing your fire pit, first determine your gas supply
Both Natural Gas and Propane may be used - Supply Pressure and BTU ratings need to be regulated for both
For Natural Gas: Supply Pressure should be set between 3.5" - 7" Water Column
For Propane*: Supply Pressure should be set between 8" - 11" Water Column
*Do not use a burner rated for greater than 125,000 BTU with a 20-pound propane tank.
Fire Pit Burner - The shape and size of your fire pit burner can be choosed after determining your gas supply
Choose a burner kit based off of the inside dimension of your enclosure - the fire pit pan will be 6" larger than the burner to provide at least 3" between the edge of the burner and the inside edge of the pit
Fire Pit Pan - Included with all of HPC's preassembled fire pit kits
A pan can be flat or "bowl" style in order to accommodate your construction - it should be installed at least 3-4" below the top surface of your enclosure
The burner pan separates the air mixer from the burner in propane applications, but in all constructions it helps with water drainage and ventillation
Flange Extension - In many cases, the shut-off valve will be located inside the fire pit - if your enclosure walls are thicker than 3" it may be necessary to use a flange extension and a longer key
An external shut off valve is not required with this kit, but may be an option for added safety
Ventilation - For all fire pit burners, adequate ventilation is required
The recommended amount of ventilation is 36in² - or (2) 18in² vents on two opposing sides to create proper airflow
Installation Collars - Are designed to simplify the installation of a fire pit pan
Our flexible installation collars can bend for round enclosures and can be anchored in with concrete screws
How Many Installation Collars Do I Need?
Round Pan Size (Diameter)*
Number of Collars
*NOTE: For square or rectangular enclosures, use enclosure length and width measurements
Fire Media - Is the final step to finishing a gas fire pit
Both lava rock and fire glass may be used to complete your fire pit, the choice between the two is purely aesthetic
A family owned and operated business, Warming Trends specializes in manufacturing their innovative Crossfire™ Brass Burner Systems. Their state-of-the-art burner has reimagined the capabilities of backyard gas fire features by using a specific air-to-gas mixture that produces a taller, brighter flame - all while using half the fuel of conventional gas burners. All of their work is done in Colorado to ensure the highest standards using only the best quality materials so you can rest assured they stand behind their products - complete with a full lifetime warranty.
WARNING: This product can expose you to chemicals including LEAD AND LEAD COMPOUNDS, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov/.