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Warming Trends Lava Rock

Warming Trends Lava Rock

Regular price $47.00
Regular price Sale price $47.00
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Innovation. Design. Performance. The Crossfire® Brass Burner by Warming Trends® is a distinctive fire pit burner that utilizes cutting-edge technology to produce a taller, brighter, fuller flame. Leading the industry with a highly engineered, precision product, Warming Trends® is the original and only manufacturer of the Crossfire® Brass Burner.

Our Four Pillars

The patented technology behind our Crossfire® Brass Burner uses a specific air-to-gas ratio at the point of combustion to produce a taller, brighter, fuller flame that resembles a natural, wood-burning fire. We call this the Venturi Effect. Venturi Jet Technology generates high-velocity gas flow and pulls more oxygen into the jet chamber – feeding the combination into the flame at the point of combustion. This causes the gas and oxygen mixture to shoot out of the jet at a high velocity as a super-charged flame, like water out of a fire hose.  

Twice the Flame


 All parts and pieces of the Crossfire® Burner are made from brass. Unlike other burners made from stainless steel; brass is corrosion resistant and will not rust, which eliminates the need for replacement. We're so confident the product will last, we offer a lifetime warranty on all brass products.


All Brass Components

We stand behind our products and construction. Corrosion-resistant, Sustainable, and rust-proof, brass allows to offer the strongest lifetime warranty in the industry.

**Learn more about Warranty**


Limited Lifetime Warranty


 Warming Trends® is proud to manufacture and assemble all our products ins the US., supporting local Colorado commerce as well as parts manufacturers across the U.S. We are truly a Made in the USA products.


Made in the USA

Warming Trends® is Proud to be a member of the following organizations: 

Six Steps to Fire

  1. Measures the interior dimension of your firepit.
  2. Choose the corresponding Plate or Pan size. (Pans include a 2'' welded sidewall).
  3. Select Bruner based on the appropriate size and fuel type. (Natural Gas or Liquid Propane).
  4.  Choose the Ignition System: match lit or fully automatic ignition system.
  5. Add Optional Electronic Accessories: remote control options, dial timers, and emergency stop buttons.
  6. Complete the fire pit with Media: steel or ceramic logs, lava rock, or fire glass.


 Black Lava Rock

  • 1" - 1 ½" Black Lava Rock
  • 1 bag per 1 cubic foot


Rolled Lava Rock

  • 1" - 2" Gray/Black Rolled Lava
  • 1 bag per 1 cubic foot
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    • Researched and ordered my fireplace from US FIreplace Store. Pricing was a fair value however, the customer service was EXCELLENT! I had an issue with the direct vent venting. I called US Fireplace and the correct items were sent out the next day AND Janessa stayed on top of my return authorization and sent me the permissions and documents I needed to return the incorrect item and no cost to me, including return shipping. Overall, I am a very satisfied customer and my fireplace looks and operates flawlessly. I am glad that I selected US FIreplace to source my direct vent fireplace. Thank you for the great service.


      Monteagle, TN

    • I had placed an order, through Lowe's Home Improvement, for an Electric Firebox: Revillusion RBF42. Ordered 1st part of January. Was told I would have it in 3 weeks. When checking to see is it came in, was told it was delayed to 3/15. Was then told is was delayed until 4/25. Waited until 4/27 to check on it. Was then told it was now delayed until August. This firebox was going in a new Sun Room addition. I could not get my final inspection until the Firebox was installed. I went on line and googled for this same product. US Fireplace Store web site was given to me. This was on a Saturday. I call and reached a very nice man. Explain what I was look for. He checked and told me they had 30 of them in stock. I almost fell out of my chair. I clarified with him the product I was wanting. I ask how soon could I get it. He told me it would ship today. Again, was amazed. It arrived on the following Monday. What a pleasure and a relief working with US Fireplace Store and their employees. Exceed my expectations.

      Thomas W.

      Fort Mill, SC

    • Great prices, quick delivery and fast hassle free services on the issue I encountered. I had purchased an electric fireplace unit that would not fit into the existing fireplace space. With one email I was able to get the wrong fireplace refunded and picked up at my home at no extra cost and the new one I purchased and delivered free of charge. Great company.

      John P.

      Denvers, MA

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