A patented European Copper Chimney Pot meets the highest technical standards through its UL-listing and compliance with International Building CodOur Decorative Steel Pots have all the appeal of our popular traditional clay pots, at a fraction of the weight and cost. Earthcore’s decorative steel pots are fashioned from 24” gauge, colored, Kynar steel. They are available in five standard colors and offer a 20-year warranty.es. It also provides the ideal finishing touch. Viewed from ground level, a chimney pot can appear too small if not sized properly. For the best aesthetic results, we recommend selecting a chimney pot that is approximately 15 percent of the overall chimney height. Our copper chimney pots are unique in that they are compatible with both masonry and metal flue, giving you more options and a consistent quality look.