Warming Trends is the only US-based manufacturer of superior fire features offering the patented CROSSFIRE brass burner. As a vertically integrated company we manufacture all of our prime products in our Colorado facilities resulting in outstanding quality and industry-best lead times. We offer hundreds of standard burners and endless custom options to fit your project(s). Our burners are built to last a lifetime and are backed by a lifetime guarantee. CROSSFIRE burners produce taller brighter more natural flames. Design innovation provides unparalleled fuel efficiency whether the key valve is turned down for a cozy campfire or up for the largest eye-catching flame.