Prism Hardscapes PH-445-FBNNG Lombard-P Natural Fire Bowl Natural Gas. The Lombard-P fire bowl is a great option for fans of the Lombard design, providing an outdoor retreat of warmth and ambiance for a larger party. Each bowl has been hand-crafted using our custom patina finishing process, guaranteeing a one-of-a-kind creation with subtle variation. The 29″ square bowl provides a beautiful and functional centerpiece for any backyard, patio or lounging area. The ambient heat provides plenty of warmth for multiple people. The 65,000 BTUs unit operates on either Propane Gas or Natural Gas.