Black Cast Iron Fire Ring - 18" We stand by the superior quality of our circular steel fire rings because we know what makes them different! The higher gauge steel used in their construction ensures a longer product life, which is why we can offer you a year's warranty on our black steel rings, and a three year warranty on our stainless steel rings. We also know that the holes of our steel burners are drilled instead of punched, creating a more accurate opening for the fuel to flow through. This in turn prevents the building up of debris that so often leads to those annoying whistling sounds in fire rings of a lesser quality. All welding for our fire rings is done by state of the art machines to achieve the highest level of precision and performance. The tubes which transfer the gas to the rings themselves are kept at a slanting angle. This angle prevents the buildup of water, and gives you one less thing to worry about! And finally, because the construction of the tubes and the hub is superior and more precise, they are able to allow more fuel to flow through the rings; resulting in a dramatically luminous flame. You'll really notice the difference!